Geography (from
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...
; combining 'Earth' and 'write', literally 'Earth writing') is the study of the lands, features, inhabitants, and phenomena of
Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surf ...
.
Geography is an all-encompassing discipline that seeks an understanding of Earth and
its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many
concept
Concepts are defined as abstract ideas. They are understood to be the fundamental building blocks of the concept behind principles, thoughts and beliefs.
They play an important role in all aspects of cognition. As such, concepts are studied by s ...
s can be applied more broadly to other
celestial bodies
An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists in the observable universe. In astronomy, the terms ''object'' and ''body'' are often us ...
in the field of
planetary science
Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets) and planetary systems (in particular those of the Solar System) and the processes of the ...
.
Geography has been called "a bridge between
natural science and
social science
Social science is one of the branches of science, devoted to the study of societies and the relationships among individuals within those societies. The term was formerly used to refer to the field of sociology, the original "science of soc ...
disciplines."
Origins of many of the concepts in geography can be traced to Greek
Eratosthenes
Eratosthenes of Cyrene (; grc-gre, Ἐρατοσθένης ; – ) was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexand ...
of Cyrene, who may have coined the term "geographia" ().
The first recorded use of the word
γεωγραφία was as the title of a book by Greek scholar
Claudius Ptolemy
Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importan ...
(100 – 170 AD).
This work created the so-called "Ptolemaic tradition" of geography, which included "Ptolemaic cartographic theory."
However, the concepts of geography (such as
cartography
Cartography (; from grc, χάρτης , "papyrus, sheet of paper, map"; and , "write") is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an ...
) date back to the earliest attempts to understand the world spatially, with the earliest example of an attempted world map dating to the 9th century BCE in ancient
Babylon.
The
history of geography
The history of geography includes many histories of geography which have differed over time and between different cultural and political groups. In more recent developments, geography has become a distinct academic discipline. 'Geography' derive ...
as a discipline spans cultures and millennia, being independently developed by multiple groups, and cross-pollinated by trade between these groups. The core concepts of geography consistent between all approaches are a focus on space, place, time, and scale.
Today, geography is an extremely broad discipline with multiple approaches and modalities. There have been multiple attempts to organize the discipline, including the four traditions of geography, and into branches.
Techniques employed can generally be broken down into
quantitative
Quantitative may refer to:
* Quantitative research, scientific investigation of quantitative properties
* Quantitative analysis (disambiguation)
* Quantitative verse, a metrical system in poetry
* Statistics, also known as quantitative analysis ...
and
qualitative
Qualitative descriptions or distinctions are based on some quality or characteristic rather than on some quantity or measured value.
Qualitative may also refer to:
*Qualitative property, a property that can be observed but not measured numericall ...
approaches, with many studies taking
mixed-methods approaches.
[Diriwächter, R. & Valsiner, J. (January 2006]
Qualitative Developmental Research Methods in Their Historical and Epistemological Contexts
FQS. Vol 7, No. 1, Art. 8 Common techniques include
cartography
Cartography (; from grc, χάρτης , "papyrus, sheet of paper, map"; and , "write") is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an ...
,
remote sensing
Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation. The term is applied especially to acquiring information about Ear ...
,
interview
An interview is a structured conversation where one participant asks questions, and the other provides answers.Merriam Webster DictionaryInterview Dictionary definition, Retrieved February 16, 2016 In common parlance, the word "interview" ...
s, and
surveying
Surveying or land surveying is the technique, profession, art, and science of determining the terrestrial two-dimensional or three-dimensional positions of points and the distances and angles between them. A land surveying professional is ...
.
Fundamentals

Geography is a systematic study of the Earth (other celestial bodies are specified, such as "geography of Mars", or given another name, such as
areography
Areography, also known as the geography of Mars, is a subfield of planetary science that entails the delineation and characterization of regions on Mars. Areography is mainly focused on what is called physical geography on Earth; that is the dis ...
in the case of Mars), its features, and phenomena that take place on it. For something to fall into the domain of geography, it generally needs some sort of spatial component that can be placed on a
map, such as
coordinates
In geometry, a coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space. The order of the coordinates is si ...
, place names, or
address
An address is a collection of information, presented in a mostly fixed format, used to give the location of a building, apartment, or other structure or a plot of land, generally using political boundaries and street names as references, along ...
es. This has led to geography being associated with
cartography
Cartography (; from grc, χάρτης , "papyrus, sheet of paper, map"; and , "write") is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an ...
and place names. Although many geographers are trained in
toponymy
Toponymy, toponymics, or toponomastics is the study of '' toponyms'' ( proper names of places, also known as place names and geographic names), including their origins, meanings, usage and types. Toponym is the general term for a proper name o ...
and cartology, this is not their main preoccupation.
Geographers
A geographer is a physical scientist, social scientist or humanist whose area of study is geography, the study of Earth's natural environment and human society, including how society and nature interacts. The Greek prefix "geo" means "earth" a ...
study the Earth's spatial and temporal distribution of phenomena, processes, and features as well as the interaction of humans and their
environment
Environment most often refers to:
__NOTOC__
* Natural environment, all living and non-living things occurring naturally
* Biophysical environment, the physical and biological factors along with their chemical interactions that affect an organism or ...
.
Because space and place affect a variety of topics, such as economics, health,
climate
Climate is the long-term weather pattern in an area, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years. Some of the meteorologica ...
, plants, and animals, geography is highly interdisciplinary. The interdisciplinary nature of the geographical approach depends on an attentiveness to the relationship between physical and human phenomena and their spatial patterns.
Geography as a discipline can be split broadly into three main branches:
human geography
Human geography or anthropogeography is the branch of geography that studies spatial relationships between human communities, cultures, economies, and their interactions with the environment. It analyzes spatial interdependencies between social i ...
,
physical geography
Physical geography (also known as physiography) is one of the three main branches of geography. Physical geography is the branch of natural science which deals with the processes and patterns in the natural environment such as the atmosphere, ...
, and
technical geography
Technical geography is one of three main branches of geography and involves using, studying, and creating tools to obtain, analyze, interpret, and understand spatial information. The other two branches, human geography and physical geography, can ...
.
Human geography largely focuses on the
built environment
The term built environment refers to human-made conditions and is often used in architecture, landscape architecture, urban planning, public health, sociology, and anthropology, among others. These curated spaces provide the setting for human ...
and how humans create, view, manage, and influence space.
Physical geography examines the natural environment and how
organism
In biology, an organism () is any life, living system that functions as an individual entity. All organisms are composed of cells (cell theory). Organisms are classified by taxonomy (biology), taxonomy into groups such as Multicellular o ...
s, climate,
soil
Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former ...
, water, and
landforms produce and interact.
The difference between these approaches led to the development of
integrated geography
Integrated geography (also referred to as integrative geography, environmental geography or human–environment geography) is where the branches of human geography and physical geography overlap to describes and explain the spatial aspects of inte ...
, which combines physical and human geography and concerns the interactions between the environment and humans.
Technical geography involves studying and developing the tools and techniques used by geographers, such as remote sensing, cartography, and geographic information system.
Key concepts
Narrowing down geography to a few key concepts is extremely challenging, and subject to tremendous debate within the discipline.
In one attempt, the 1st edition of the book "Key Concepts in Geography" broke down this into chapters focusing on "Space," "Place," "Time," "Scale," and "Landscape."
The 2nd edition of the book expanded on these key concepts by adding "Environmental systems," "Social Systems," "Nature," "
Globalization
Globalization, or globalisation (English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-ise, -ize (-isation, -ization), see spelling differences), is the process of foreign relation ...
," "Development," and "Risk," demonstrating how challenging narrowing the field can be.

Another approach used extensively in teaching geography are the
Five themes of geography
The five themes of geography are an educational tool for teaching geography. The five themes were published in 1984 and widely adopted by teachers, textbook publishers, and curriculum designers in the United States. Most American geography and s ...
established by "Guidelines for Geographic Education: Elementary and Secondary Schools," published jointly by the
National Council for Geographic Education
The National Council for Geographic Education (NCGE), chartered in 1915, is a non-profit scientific and educational society in the United States that promotes and supports geography education.
Annual conference
NCGE holds an annual conference ...
and the
Association of American Geographers
The American Association of Geographers (AAG) is a non-profit scientific and educational society aimed at advancing the understanding, study, and importance of geography and related fields. Its headquarters is located in Washington, D.C. The ...
in 1984.
These themes are Location, place, relationships within places (often summarized as Human-Environment Interaction), movement, and regions.
The five themes of geography have shaped how American education approaches the topic in the years since.
Space

For something to exist in the realm of geography, it must be able to be described spatially.
Thus, space is the most fundamental concept at the foundation of geography.
The concept is so basic, that geographers often have difficulty defining exactly what it is.
Absolute space Absolute may refer to:
Companies
* Absolute Entertainment, a video game publisher
* Absolute Radio, (formerly Virgin Radio), independent national radio station in the UK
* Absolute Software Corporation, specializes in security and data risk manag ...
is the exact site, or spatial coordinates, of objects, persons, places, or phenomena under investigation.
[ We exist in space.] Absolute space leads to the view of the world as a photograph, with everything frozen in place when the coordinates were recorded. Today, geographers are trained to recognize the world as a dynamic space where all processes interact and take place, rather than a static image on a map.
Place
Place is one of the most complex and important terms in geography. In human geography, place is the synthesis of the coordinates on the Earth's surface, the activity and use that occurs, has occurred, and will occur at the coordinates, and the meaning ascribed to the space by human individuals and groups.[ This can be extraordinarily complex, as different spaces may have different uses at different times and mean different things to different people. In physical geography, a place includes all of the physical phenomena that occur in space, including the ]lithosphere
A lithosphere () is the rigid, outermost rocky shell of a terrestrial planet or natural satellite. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of up to thousands of years ...
, atmosphere
An atmosphere () is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. ...
, hydrosphere
The hydrosphere () is the combined mass of water found on, under, and above the surface of a planet, minor planet, or natural satellite. Although Earth's hydrosphere has been around for about 4 billion years, it continues to change in shape. Thi ...
, and biosphere
The biosphere (from Greek βίος ''bíos'' "life" and σφαῖρα ''sphaira'' "sphere"), also known as the ecosphere (from Greek οἶκος ''oîkos'' "environment" and σφαῖρα), is the worldwide sum of all ecosystems. It can also be ...
.[ Places do not exist in a vacuum and instead have complex spatial relationships with each other, and place is concerned how a location is situated in relation to all other locations.] As a discipline then, the term place in geography includes all spatial phenomena occurring at a location, the diverse uses and meanings humans ascribe to that location, and how that location impacts and is impacted by all other locations on Earth.[ In one of ]Yi-Fu Tuan
Yi-Fu Tuan (; December 5, 1930 – August 10, 2022) was a Chinese-born American geographer. He was one of the key figures in human geography and arguably the most important originator of humanistic geography.
Early life and education
Born in 1 ...
's papers, he explains that in his view, geography is the study of Earth as a home for humanity, and thus place and the complex meaning behind the term is central to the discipline of geography.
Time
Time is usually thought to be within the domain of history
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the History of writing#Inventions of writing, invention of writing systems is considered prehistory. "History" is an umbr ...
, however, it is of significant concern in the discipline of geography. In physics, space and time are not separated, and are combined into the concept of spacetime
In physics, spacetime is a mathematical model that combines the three dimensions of space and one dimension of time into a single four-dimensional manifold. Spacetime diagrams can be used to visualize relativistic effects, such as why diffe ...
.
Geography is subject to the laws of physics, and in studying things that occur in space, time must be considered. Time in geography is more than just the historical record of events that occurred at various discrete coordinates; but also includes modeling the dynamic movement of people, organisms, and things through space.[ Time facilitates movement through space, ultimately allowing things to flow through a system.][ The amount of time an individual, or group of people, spends in a place will often shape their attachment and perspective to that place.][ Time constrains the possible paths that can be taken through space, given a starting point, possible routes, and rate of travel.] Visualizing time over space is challenging in terms of cartography, and includes Space-Prism, advanced 3D geovisualizations, and animated maps.[
]
Scale
Scale in the context of a map is the ratio between a distance measured on the map and the corresponding distance as measured on the ground. This concept is fundamental to the discipline of geography, not just cartography, in that phenomena being investigated appear different depending on the scale used. Scale is the frame that geographers use to measure space, and ultimately to understand a place.[
]
Laws of geography
During the quantitative revolution, geography shifted to an empirical law-making (nomothetic
Nomothetic literally means "proposition of the law" (Greek derivation) and is used in philosophy, psychology, and law with differing meanings.
Etymology
In general humanities usage, ''nomothetic'' may be used in the sense of "able to lay down ...
) approach. Several laws of geography have been proposed since then, most notably by Waldo Tobler
Waldo Rudolph Tobler (November 16, 1930 – February 20, 2018) was an American-Swiss geographer and cartographer. Tobler's idea that "Everything is related to everything else, but near things are more related than distant things" is referred to ...
and can be viewed as a product of the quantitative revolution. In general, some dispute the entire concept of laws in geography and the social sciences. These criticisms have been addressed by Tobler and others, such as Michael Frank Goodchild
Michael Frank Goodchild (born February 24, 1944) is a British-American geographer. He is an Emeritus Professor of Geography at the University of California, Santa Barbara. After nineteen years at the University of Western Ontario, including th ...
. However, this is an ongoing source of debate in geography and is unlikely to be resolved anytime soon. Several laws have been proposed, and Tobler's first law of geography is the most generally accepted in geography. Some have argued that geographic laws do not need to be numbered. The existence of a first invites a second, and many have proposed themselves as that. It has also been proposed that Tobler's first law of geography should be moved to the second and replaced with another. A few of the proposed laws of geography are below:
* Tobler's first law of geography The First Law of Geography, according to Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." This first law is the foundation of the fundamental concepts of spatial dependence and spatia ...
: "Everything is related to everything else, but near things are more related than distant."
* Tobler's second law of geography The second law of geography, according to Waldo Tobler, is "the phenomenon external to a geographic area of interest affects what goes on inside."
Background
Tobler's second law of geography, "the phenomenon external to a geographic area of inte ...
: "The phenomenon external to a geographic area of interest affects what goes on inside."
* Arbia's law of geography
Arbia’s law of geography states, "Everything is related to everything else, but things observed at a coarse spatial resolution are more related than things observed at a finer resolution." Originally proposed as the 2nd law of geography, this is ...
: "Everything is related to everything else, but things observed at a coarse spatial resolution are more related than things observed at a finer resolution."
* Spatial heterogeneity
Spatial heterogeneity is a property generally ascribed to a landscape or to a population. It refers to the uneven distribution of various concentrations of each species within an area. A landscape with spatial heterogeneity has a mix of concentra ...
: Geographic variables exhibit uncontrolled variance.
* The uncertainty principle: "That the geographic world is infinitely complex and that any representation must therefore contain elements of uncertainty, that many definitions used in acquiring geographic data contain elements of vagueness, and that it is impossible to measure location on the Earth's surface exactly."
Additionally, several variations or amendments to these laws exist within the literature, although not as well supported. For example, one paper proposed an amended version of Tobler's first law of geography, referred to in the text as the ''Tobler–von Thünen law'', which states: "Everything is related to everything else, but near things are more related than distant things, ."
Sub-disciplines
Geography is a branch of inquiry that focuses on spatial information on Earth. It is an extremely broad topic and can be broken down multiple ways. There have been several approaches to doing this spanning at least several centuries, including "four traditions of geography" and into distinct branches. The Four traditions of geography are often used to divide the different historical approach theories geographers have taken to the discipline. In contrast, geography's branches describe contemporary applied geographical approaches.
Four traditions
Geography is an extremely broad field. Because of this, many view the various definitions of geography proposed over the decades as inadequate. To address this, William D. Pattison
William is a masculine given name of Norman French origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conq ...
proposed the concept of the "Four traditions of Geography" in 1964. These traditions are the Spatial
Spatial may refer to:
*Dimension
*Space
*Three-dimensional space
Three-dimensional space (also: 3D space, 3-space or, rarely, tri-dimensional space) is a geometric setting in which three values (called ''parameters'') are required to determ ...
or Locational Tradition, the Man-Land or Human-Environment Interaction Tradition (sometimes referred to as Integrated geography
Integrated geography (also referred to as integrative geography, environmental geography or human–environment geography) is where the branches of human geography and physical geography overlap to describes and explain the spatial aspects of inte ...
), the Area Studies
Area studies (also known as regional studies) are interdisciplinary fields of research and scholarship pertaining to particular geographical, national/ federal, or cultural regions. The term exists primarily as a general description for what ar ...
or Regional
In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and the interaction of humanity and t ...
Tradition, and the Earth Science
Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spher ...
Tradition. These concepts are broad sets of geography philosophies bound together within the discipline. They are one of many ways geographers organize the major sets of thoughts and philosophies within the discipline.
Branches
In another approach to the abovementioned four traditions, geography is organized into applied branches. The UNESCO
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. I ...
Encyclopedia of Life Support Systems The Encyclopedia of Life Support Systems (EOLSS) is an integrated compendium of twenty one encyclopedias.
The first Earth Summit of 1992, held in Rio de Janeiro, issued a document that is now famous as Agenda 21. This document refers to the Earth' ...
organizes geography into the three categories of human geography
Human geography or anthropogeography is the branch of geography that studies spatial relationships between human communities, cultures, economies, and their interactions with the environment. It analyzes spatial interdependencies between social i ...
, physical geography
Physical geography (also known as physiography) is one of the three main branches of geography. Physical geography is the branch of natural science which deals with the processes and patterns in the natural environment such as the atmosphere, ...
, and technical geography
Technical geography is one of three main branches of geography and involves using, studying, and creating tools to obtain, analyze, interpret, and understand spatial information. The other two branches, human geography and physical geography, can ...
. Some publications limit the number of branches to physical and human, describing them as the principal branches. Geographers rarely focus on just one of these topics, often using one as their primary focus and then incorporating data and methods from the other branches. Often, geographers are asked to describe what they do by individuals outside the discipline and are likely to identify closely with a specific branch, or sub-branch when describing themselves to lay people. Human geography studies people and their communities, cultures, economies, and environmental interactions by studying their relations with and across space and place. Physical geography is concerned with the study of processes and patterns in the natural environment like the atmosphere
An atmosphere () is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. ...
, hydrosphere
The hydrosphere () is the combined mass of water found on, under, and above the surface of a planet, minor planet, or natural satellite. Although Earth's hydrosphere has been around for about 4 billion years, it continues to change in shape. Thi ...
, biosphere
The biosphere (from Greek βίος ''bíos'' "life" and σφαῖρα ''sphaira'' "sphere"), also known as the ecosphere (from Greek οἶκος ''oîkos'' "environment" and σφαῖρα), is the worldwide sum of all ecosystems. It can also be ...
, and geosphere
There are several conflicting usages of geosphere, variously defined. It may be taken as the collective name for the lithosphere, the hydrosphere, the cryosphere, and the atmosphere. The different collectives of the geosphere are able to exchange ...
. Technical geography
Technical geography is one of three main branches of geography and involves using, studying, and creating tools to obtain, analyze, interpret, and understand spatial information. The other two branches, human geography and physical geography, can ...
is interested in studying and applying techniques and methods to store, process, analyze, visualize, and use spatial data. It is the newest of the branches, the most controversial, and often other terms are used in the literature to describe the emerging category. These branches use similar geographic philosophies, concepts, and tools and often overlap significantly.
Physical
Physical geography (or physiography) focuses on geography as an Earth science
Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spher ...
. It aims to understand the physical problems and the issues of lithosphere
A lithosphere () is the rigid, outermost rocky shell of a terrestrial planet or natural satellite. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of up to thousands of years ...
, hydrosphere
The hydrosphere () is the combined mass of water found on, under, and above the surface of a planet, minor planet, or natural satellite. Although Earth's hydrosphere has been around for about 4 billion years, it continues to change in shape. Thi ...
, atmosphere
An atmosphere () is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. ...
, pedosphere
The pedosphere (from Greek ''pedon'' "ground" or "earth" and ''sphaira'' "sphere") is the outermost layer of the Earth that is composed of soil and subject to soil formation processes. It exists at the interface of the lithosphere, atmosphere, ...
, and global flora
Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring (indigenous (ecology), indigenous) native plant, native plants. The corresponding term for animals is ''fauna'', and for f ...
and fauna
Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is ''flora'', and for fungi, it is '' funga''. Flora, fauna, funga and other forms of life are collectively referred to as ''biota''. Zoo ...
patterns (biosphere
The biosphere (from Greek βίος ''bíos'' "life" and σφαῖρα ''sphaira'' "sphere"), also known as the ecosphere (from Greek οἶκος ''oîkos'' "environment" and σφαῖρα), is the worldwide sum of all ecosystems. It can also be ...
). Physical geography is the study of earth's seasons, climate
Climate is the long-term weather pattern in an area, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years. Some of the meteorologica ...
, atmosphere
An atmosphere () is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. ...
, soil
Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former ...
, streams, landforms, and oceans. Physical geographers will often work in identifying and monitoring the use of natural resources.
File:Línea de Wallace.jpg, Biogeography
File:Cyclone Catarina from the ISS on March 26 2004.JPG, Climatology
Climatology (from Ancient Greek, Greek , ''klima'', "place, zone"; and , ''wiktionary:-logia, -logia'') or climate science is the scientific study of Earth's climate, typically defined as weather conditions averaged over a period of at least 30 ...
and meteorology
Meteorology is a branch of the atmospheric sciences (which include atmospheric chemistry and physics) with a major focus on weather forecasting. The study of meteorology dates back millennia, though significant progress in meteorology did no ...
File:90 mile beach.jpg, Coastal geography
Coastal geography is the study of the constantly changing region between the ocean and the land, incorporating both the physical geography (i.e. coastal geomorphology, climatology and oceanography) and the human geography (sociology and history) ...
File:Gavin Plant.JPG, Environmental management
Environmental resource management is the management of the interaction and impact of human societies on the environment. It is not, as the phrase might suggest, the management of the environment itself. Environmental resources management aims ...
File:Delicate Arch LaSalle.jpg, Geomorphology
Geomorphology (from Ancient Greek: , ', "earth"; , ', "form"; and , ', "study") is the scientific study of the origin and evolution of topographic and bathymetric features created by physical, chemical or biological processes operating at or ...
File:Receding glacier-en.svg, Glaciology
Glaciology (; ) is the scientific study of glaciers, or more generally ice and natural phenomena that involve ice.
Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, c ...
File:Meander.svg, Hydrology
Hydrology () is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and environmental watershed sustainability. A practitioner of hydrology is calle ...
and hydrography
Hydrography is the branch of applied sciences which deals with the measurement and description of the physical features of oceans, seas, coastal areas, lakes and rivers, as well as with the prediction of their change over time, for the primary ...
File:Khajuraho-landscape.jpg, Landscape ecology
Landscape ecology is the science of studying and improving relationships between ecological processes in the environment and particular ecosystems. This is done within a variety of landscape scales, development spatial patterns, and organizati ...
File:World11.jpg, Oceanography
File:Pangea interpretacion.png, alt=a view of the supercontinent of pangea breaking up, Palaeogeography
Palaeogeography (or paleogeography) is the study of historical geography, generally physical landscapes. Palaeogeography can also include the study of human or cultural environments. When the focus is specifically on landforms, the term pale ...
File:Soil profile.jpg, Pedology
Pedology (from Greek: πέδον, ''pedon'', "soil"; and λόγος, ''logos'', "study") is a discipline within soil science which focuses on understanding and characterizing soil formation, evolution, and the theoretical frameworks for modeling ...
File:Milankovitch Variations sv.png, Quaternary science
Quaternary science is the study which represents the systematic study of the Quaternary Period commonly known as the ice age. The Quaternary Period is a time period that started around 2.58 million years ago and continues today. This period ...
Human
Human geography (or anthropogeography) is a branch of geography that focuses on studying patterns and processes that shape human society. It encompasses the human, political, cultural
Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups.Tylor ...
, social, and economic aspects. In industry, human geographers often work in city planning, public health, or business analysis.
File:Spatial Contextual Awareness Fig 2.png, Cognitive geography
Cognitive geography is an interdisciplinary study of cognitive science and geography. It aims to understand how humans view space, place, and environment. It involves formalizing factors that influence our spatial cognition to create a more eff ...
File:Qichwa conchucos 01.jpg, Cultural geography
Cultural geography is a subfield within human geography. Though the first traces of the study of different nations and cultures on Earth can be dated back to ancient geographers such as Ptolemy or Strabo, cultural geography as academic study firs ...
File:Pepsi in India.jpg, Development geography
Development geography is a branch of geography which refers to the standard of living and its quality of life of its human inhabitants. In this context, development is a process of change that affects peoples' lives. It may involve an improvement ...
File:Christaller model 1.jpg, Economic geography
Economic geography is the subfield of human geography which studies economic activity and factors affecting them. It can also be considered a subfield or method in economics.
There are four branches of economic geography.
There is,
primary secto ...
File:Star of life.svg, Health geography
Health geography is the application of geographical information, perspectives, and methods to the study of health, disease, and health care. Medical geography, a sub-discipline of or sister field of health geography, Oxford Bibliographies entry of ...
File:British Empire 1897.jpg, Historical geography
Historical geography is the branch of geography that studies the ways in which geographic phenomena have changed over time. It is a synthesizing discipline which shares both topical and methodological similarities with history, anthropology, eco ...
File:Internet map 1024 - transparent, inverted.png , Internet geography
Internet geography, also called cybergeography, is a subdiscipline of geography that studies the spatial organization of the Internet, from social, economic, cultural, and technological perspectives. The core assumption of Internet geography is ...
File:UN General Assembly.jpg, Political geography
Political geography is concerned with the study of both the spatially uneven outcomes of politics, political processes and the ways in which political processes are themselves affected by spatial structures. Conventionally, for the purposes of an ...
and Geopolitics
File:Pyramide Comores.PNG, Population geography
Population geography relates spatial variations in the distribution, composition, migration, and growth of populations to the terrain. Population geography involves demography in a geographical perspective. It focuses on the characteristics of po ...
or Demography
Demography () is the statistical study of populations, especially human beings.
Demographic analysis examines and measures the dimensions and dynamics of populations; it can cover whole societies or groups defined by criteria such as ed ...
File:ReligionSymbol.svg, Religion geography
Religion and geography is the study of the impact of geography, i.e. place and space, on religious belief.
Another aspect of the relationship between religion and geography is ''religious geography'', in which geographical ideas are influenced ...
File:US-hoosier-family.jpg, Social geography
Social geography is the branch of human geography that is interested in the relationships between society and space, and is most closely related to social theory in general and sociology in particular, dealing with the relation of social phenomena ...
File:Gare du Nord USFRT (Paris Metro).png, Transportation geography
Transport geography or transportation geography is a branch of geography that investigates the movement and connections between people, goods and information on the Earth's surface.
Aims and scope
Transportation geography detects, describes, and e ...
File:Tourists-2.jpg, Tourism geography
Tourism geography is the study of travel and tourism, as an industry and as a social and cultural activity. Tourism geography covers a wide range of interests including the environmental impact of tourism, the geographies of tourism and leisure eco ...
File:Empire State Building - Flickr id 22550357694.jpg, Urban geography
Urban geography is the subdiscipline of geography that derives from a study of cities and urban processes. Urban geographers and urbanists examine various aspects of urban life and the built environment. Scholars, activists, and the public have ...
Various approaches to the study of human geography have also arisen through time and include:
* Behavioral geography
Behavioral geography is an approach to human geography that examines human behavior by separating it into different parts. In addition, behavioral geography is an ideology/approach in human geography that makes use of the methods and assumptions o ...
* Culture theory
Culture theory is the branch of comparative anthropology and semiotics (not to be confused with cultural sociology or cultural studies) that seeks to define the heuristic concept of culture in operational and/or scientific terms.
Overview
I ...
* Feminist geography
Feminist geography is a sub-discipline of human geography that applies the theories, methods, and critiques of feminism to the study of the human environment, society, and geographical space. Feminist geography emerged in the 1970s, when member ...
* Geosophy Geosophy is a concept introduced to geography by J.K. Wright in 1947. The word is a compound of ‘geo’ (Greek for earth) and ‘sophia’ (Greek for wisdom). Wright defined it thus:
:Geosophy ... is the study of geographical knowledge from any ...
Technical
Technical geography concerns studying and developing tools, techniques, and statistical methods employed to collect, analyze, use, and understand spatial data. Technical geography is the most recently recognized, and controversial, of the branches. Its use dates back to 1749, when a book published by Edward Cave
Edward Cave (27 February 1691 – 10 January 1754) was an English printer, editor and publisher. He coined the term " magazine" for a periodical, founding ''The Gentleman's Magazine'' in 1731, and was the first publisher to successfully fashi ...
organized the discipline into a section containing content such as cartographic techniques and globes. There are several other terms, often used interchangeably with technical geography to subdivide the discipline, including "techniques of geographic analysis," "Geographic Information Technology," "Geography method's and techniques," "Geographic Information Science Geographic information science or geographical information science (GIScience or GISc) is the scientific discipline that studies geographic information, including how it represents phenomena in the real world, how it represents the way humans unde ...
," "geoinformatics
Geoinformatics is the science and the technology which develops and uses information science infrastructure to address the problems of geography, cartography, geosciences and related branches of science and engineering, such as Land Surveying ...
," "geomatics," and "information geography". There are subtle differences to each concept and term; however, technical geography is one of the broadest, is consistent with the naming convention of the other two branches, has been in use since the 1700s, and has been used by the UNESCO
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. I ...
Encyclopedia of Life Support Systems The Encyclopedia of Life Support Systems (EOLSS) is an integrated compendium of twenty one encyclopedias.
The first Earth Summit of 1992, held in Rio de Janeiro, issued a document that is now famous as Agenda 21. This document refers to the Earth' ...
to divide geography into themes. As academic fields increasingly specialize in their nature, technical geography has emerged as a branch of geography specializing in geographic methods and thought. The emergence of technical geography has brought new relevance to the broad discipline of geography by serving as a set of unique methods for managing the interdisciplinary nature of the phenomena under investigation. While human and physical geographers use the techniques employed by technical geographers, technical geography is more concerned with the fundamental spatial concepts and technologies than the nature of the data. It is therefore closely associated with the spatial tradition of geography while being applied to the other two major branches. A technical geographer might work as a GIS analyst, a GIS developer working to make new software tools, or create general reference maps incorporating human and natural features.
File:Stourhead Pantheon.jpg, Geodesign
File:Meridian convergence and spehrical excess.png, Geodesy
File:Worldwind.png, Geoinformatics
File:Fig 4.4.png, Geographic information science
File:Survey instruments-2.png, Geomatics
File:gislayers.jpg, Geovisualization
File:Euclidean Voronoi diagram.svg, Statistical geography
File:Example_krig.png, Spatial analysis
File:Sample of time geographical description.png, Time geography
Methods
All geographic research and analysis start with asking the question "where," followed by "why there." Geographers start with the fundamental assumption set forth in Tobler's first law of geography The First Law of Geography, according to Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." This first law is the foundation of the fundamental concepts of spatial dependence and spatia ...
, that "everything is related to everything else, but near things are more related than distant things."
As spatial interrelationships are key to this synoptic science, maps are a key tool. Classical cartography
Cartography (; from grc, χάρτης , "papyrus, sheet of paper, map"; and , "write") is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an ...
has been joined by a more modern approach to geographical analysis, computer-based geographic information systems (GIS).
In their study, geographers use four interrelated approaches:
* Analytical – Asks ''why'' we find features and populations in a specific geographic area.
* Descriptive – Simply specifies the locations of features and populations.
* Regional – Examines systematic relationships between categories for a specific region or location on the planet.
* Systematic – Groups geographical knowledge into categories that can be explored globally.
Quantitative methods
Quantitative methods in geography became particularly influential in the discipline during the quantitative revolution of the 1950s and 60s. These methods revitalized the discipline in many ways, allowing scientific testing of hypotheses and proposing scientific geographic theories and laws. The quantitative revolution heavily influenced and revitalized technical geography, and lead to the development of the subfield of quantitative geography.
Quantitative cartography
Cartography is the art, science, and technology of making maps. Cartographers study the Earth's surface representation with abstract symbols (map making). Although other subdisciplines of geography rely on maps for presenting their analyses, the actual making of maps is abstract enough to be regarded separately. Cartography has grown from a collection of drafting techniques into an actual science.
Cartographers must learn cognitive psychology and ergonomics to understand which symbols convey information about the Earth most effectively and behaviorism, behavioural psychology to induce the readers of their maps to act on the information. They must learn geodesy and fairly advanced mathematics to understand how the Figure of the Earth, shape of the Earth affects the distortion of map symbols projected onto a flat surface for viewing. It can be said, without much controversy, that cartography is the seed from which the larger field of geography grew.
Geographic information systems
Geographic information systems (GIS) deal with storing information about the Earth for automatic retrieval by a computer in an accurate manner appropriate to the information's purpose. In addition to all of the other subdisciplines of geography, GIS specialists must understand computer science and database systems. GIS has revolutionized the field of cartography: nearly all mapmaking is now done with the assistance of some form of List of GIS software, GIS software. The science of using GIS software and GIS techniques to represent, analyse, and predict the spatial relationships is called ''geographic information science'' (GISc).
Remote sensing
Remote sensing is the art, science, and technology of obtaining information about Earth's features from measurements made at a distance. Remotely sensed data can be either passive, such as traditional photography, or active, such as LiDAR. A variety of platforms can be used for remote sensing, including satellite imagery, aerial photography (including consumer drones), and data obtained from hand-held sensors. Products from remote sensing include Digital elevation model and cartographic base maps. Geographers increasingly use remotely sensed data to obtain information about the Earth's land surface, ocean, and atmosphere, because it: (a) supplies objective information at a variety of spatial scales (local to global), (b) provides a synoptic view of the area of interest, (c) allows access to distant and inaccessible sites, (d) provides spectral information outside the visible portion of the electromagnetic spectrum, and (e) facilitates studies of how features/areas change over time. Remotely sensed data may be analyzed independently or in conjunction with other digital data layers (e.g., in a geographic information system). Remote sensing aids in land use, land cover (LULC) mapping, by helping to determine both what is naturally occurring on a piece of land and what human activities are taking place on it.
Geostatistics
Geostatistics deal with Numerical data, quantitative data analysis, specifically the application of a statistical methodology to the exploration of geographic phenomena. Geostatistics is used extensively in a variety of fields, including hydrology, geology, petroleum exploration, weather analysis, urban planning, logistics, and epidemiology. The mathematical basis for geostatistics derives from cluster analysis, linear discriminant analysis and non-parametric statistics, non-parametric statistical tests, and a variety of other subjects. Applications of geostatistics rely heavily on geographic information systems, particularly for the interpolation (estimate) of unmeasured points. Geographers are making notable contributions to the method of quantitative techniques.
Qualitative methods
Qualitative methods in geography are descriptive rather than numerical or statistical in nature. They add context to concepts, and explore human concepts like beliefs and perspective that are difficult or impossible to quantify. Human geography is much more likely to employ qualitative methods than physical geography. Increasingly, technical geographers are attempting to employ GIS methods to qualitative datasets.
Qualitative cartography
Qualitative cartography employs many of the same software and techniques as quantitative cartography. It may be employed to inform on map practices, or to visualize perspectives and ideas that are not strictly quantitative in nature. An example of a form of qualitative cartography is a Chorochromatic map of nominal data, such as land cover or dominant language group in an area. Another example is a deep map, or maps that combine geography and storytelling to produce a product with greater information than a two-dimensional image of places, names, and topography.[Bodenhamer, David J.; John Corrigan; Trevor M. Harris. 2015. ]
Deep Maps and Spatial Narratives
'. Indiana University Press. DOI: 10.2307/j.ctt1zxxzr2 This approach offers more inclusive strategies than more traditional cartographic approaches for connecting the complex layers that makeup places.
Ethnography
Ethnographical research techniques are used by human geographers. In cultural geography, there is a tradition of employing qualitative research techniques, also used in anthropology and sociology. Participant observation and in-depth interviews provide human geographers with qualitative data.
Geopoetics
Geopoetics is an interdisciplinary approach that combines geography and poetry to explore the interconnectedness between humans, space, place, and the environment. Geopoetics is employed as a mixed methods tool to explain the implications of geographic research. It is often employed to address and communicate the implications of complex topics, such as the anthropocene.
Interviews
Geographers employ interviews to gather data and acquire valuable understandings from individuals or groups regarding their encounters, outlooks, and opinions concerning spatial phenomena. Interviews can be carried out through various mediums, including face-to-face interactions, phone conversations, online platforms, or written exchanges. Geographers typically adopt a structured or semi-structured approach during interviews involving specific questions or discussion points when utilized for research purposes. These questions are designed to extract focused information about the research topic while being flexible enough to allow participants to express their experiences and viewpoints, such as through open-ended questions.
Origin and history
The concept of geography is present in all cultures, and therefore the history of the discipline is a series of competing narratives, with concepts emerging at various points across space and time. The oldest known world maps date back to ancient Babylon from the 9th century BC. The best known Babylonian world map, however, is the ''Babylonian Map of the World, Imago Mundi'' of 600 BC. The map as reconstructed by Eckhard Unger shows Babylon on the Euphrates, surrounded by a circular landmass showing Assyria, Urartu, and several cities, in turn surrounded by a "bitter river" (Oceanus), with seven islands arranged around it so as to form a seven-pointed star. The accompanying text mentions seven outer regions beyond the encircling ocean. The descriptions of five of them have survived. In contrast to the ''Imago Mundi'', an earlier Babylonian world map dating back to the 9th century BC depicted Babylon as being further north from the center of the world, though it is not certain what that center was supposed to represent.
The ideas of Anaximander (c. 610–545 BC): considered by later Greek writers to be the true founder of geography, come to us through fragments quoted by his successors. Anaximander is credited with the invention of the gnomon, the simple, yet efficient Greek instrument that allowed the early measurement of latitude. Thales of Miletus, Thales is also credited with the prediction of eclipses. The foundations of geography can be traced to ancient cultures, such as the ancient, medieval, and early modern History of China, Chinese. The ancient Greece, Greeks, who were the first to explore geography as both art and science, achieved this through History of cartography, Cartography, Greek philosophy, Philosophy, and Ancient Greek literature, Literature, or through History of mathematics, Mathematics. There is some debate about who was the first person to assert that the Spherical Earth, Earth is spherical in shape, with the credit going either to Parmenides or Pythagoras. Anaxagoras was able to demonstrate that the profile of the Earth was circular by explaining eclipses. However, he still believed that the Earth was a flat disk, as did many of his contemporaries. One of the first estimates of the radius of the Earth was made by Eratosthenes
Eratosthenes of Cyrene (; grc-gre, Ἐρατοσθένης ; – ) was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexand ...
.
The first rigorous system of Geographic coordinate system, latitude and longitude lines is credited to Hipparchus. He employed a sexagesimal system that was derived from Babylonian mathematics. The meridians were subdivided into 360°, with each degree further subdivided into 60 (minute of arc, minutes). To measure the longitude at different locations on Earth, he suggested using eclipses to determine the relative difference in time. The extensive mapping by the Roman Empire, Romans as they explored new lands would later provide a high level of information for Ptolemy to construct detailed atlases. He extended the work of Hipparchus, using a grid system on his maps and adopting a length of 56.5 miles for a degree.
From the 3rd century onwards, History of China, Chinese methods of geographical study and writing of geographical literature became much more comprehensive than what was found in Europe at the time (until the 13th century). Chinese geographers such as Liu An, Pei Xiu, Jia Dan, Shen Kuo, Fan Chengda, Zhou Daguan, and Xu Xiake wrote important treatises, yet by the 17th century advanced ideas and methods of Western-style geography were adopted in China.
During the Middle Ages, the Decline of the Roman Empire, fall of the Roman empire led to a shift in the evolution of geography from Europe to the Muslim world, Islamic world. Geography in medieval Islam, Muslim geographers such as Muhammad al-Idrisi produced detailed world maps (such as Tabula Rogeriana), while other geographers such as Yaqut al-Hamawi, Abu Rayhan Biruni, Ibn Battuta, and Ibn Khaldun provided detailed accounts of their journeys and the geography of the regions they visited. Turkish geographer Mahmud al-Kashgari drew a world map on a linguistic basis, and later so did Piri Reis (Piri Reis map). Further, Islamic scholars translated and interpreting, interpreted the earlier works of the Ancient Rome, Romans and the ancient Greece, Greeks and established the House of Wisdom in Baghdad for this purpose. Ahmed ibn Sahl al-Balkhi, Abū Zayd al-Balkhī, originally from Balkh, founded the "Balkhī school" of terrestrial mapping in Baghdad. Suhrāb, a late tenth century Muslim geographer accompanied a book of geographical coordinates, with instructions for making a rectangular world map with equirectangular projection or cylindrical equidistant projection.
Abu Rayhan Biruni (976–1048) first described a polar equi-azimuthal equidistant projection of the celestial sphere. He was regarded as the most skilled when it came to mapping cities and measuring the distances between them, which he did for many cities in the Middle East and the Indian subcontinent. He often combined astronomical readings and mathematical equations to develop methods of pin-pointing locations by recording degrees of latitude and longitude. He also developed similar techniques when it came to measuring the heights of mountains, depths of the valleys, and expanse of the horizon. He also discussed human geography
Human geography or anthropogeography is the branch of geography that studies spatial relationships between human communities, cultures, economies, and their interactions with the environment. It analyzes spatial interdependencies between social i ...
and the planetary habitability of the Earth. He also calculated the latitude of Kath, Khwarezm, using the maximum altitude of the Sun, and solved a complex Geodesy, geodesic equation to accurately compute the Earth's circumference, which was close to modern values of the Earth's circumference. His estimate of 6,339.9 km for the Earth radius was only 16.8 km less than the modern value of 6,356.7 km. In contrast to his predecessors, who measured the Earth's circumference by sighting the Sun simultaneously from two different locations, al-Biruni developed a new method of using trigonometry, trigonometric calculations based on the angle between a plain and mountain top, which yielded more accurate measurements of the Earth's circumference, and made it possible for it to be measured by a single person from a single location.
The European Age of Discovery during the 16th and the 17th centuries, where many new lands were discovered and accounts by European explorers such as Christopher Columbus, Marco Polo, and James Cook revived a desire for both accurate geographic detail and more solid theoretical foundations in Europe. In 1650, the first edition of the ''Geographia Generalis'' was published by Bernhardus Varenius, which was later edited and republished by others including Isaac Newton. This textbook sought to integrate new scientific discoveries and principles into classical geography and approach the discipline like the other sciences emerging, and is seen by some as the division between ancient and modern geography in the West.
The ''Geographia Generalis'' contained both theoretical background and practical applications related to ship navigation. The remaining problem facing both explorers and geographers was finding the latitude and longitude of a geographic location. While the problem of latitude was solved long ago, but that of longitude remained; agreeing on what zero meridians should be was only part of the problem. It was left to John Harrison to solve it by inventing the chronometer Harrison Number Four, H-4 in 1760, and later in 1884 for the International Meridian Conference to adopt by convention the Greenwich meridian as zero meridians.
The 18th and 19th centuries were the times when geography became recognized as a discrete List of academic disciplines, academic discipline, and became part of a typical university curriculum in Europe (especially Paris and Berlin). The development of many geographic societies also occurred during the 19th century, with the foundations of the Société de Géographie in 1821, the Royal Geographical Society in 1830, Russian Geographical Society in 1845, American Geographical Society in 1851, the Royal Danish Geographical Society in 1876 and the National Geographic Society in 1888. The influence of Immanuel Kant, Alexander von Humboldt, Carl Ritter, and Paul Vidal de la Blache can be seen as a major turning point in geography from philosophy to an academic subject. Geographers such as Richard Hartshorne and Joseph Kerski have regarded both Humboldt and Ritter as the founders of modern geography, as Humboldt and Ritter were the first to establish geography as an independent scientific discipline.
Over the past two centuries, the advancements in technology with computers have led to the development of geomatics and new practices such as participant observation and geostatistics being incorporated into geography's portfolio of tools. In the West during the 20th century, the discipline of geography went through four major phases: environmental determinism, regional geography, the quantitative revolution, and critical geography. The strong interdisciplinary links between geography and the sciences of geology and botany, as well as economics, sociology, and demographics, have also grown greatly, especially as a result of earth system science that seeks to understand the world in a holistic view. New concepts and philosophies have emerged from the rapid advancement of computers, quantitative methods, and interdisciplinary approaches. In 1970, Waldo Tobler
Waldo Rudolph Tobler (November 16, 1930 – February 20, 2018) was an American-Swiss geographer and cartographer. Tobler's idea that "Everything is related to everything else, but near things are more related than distant things" is referred to ...
proposed the Tobler's first law of geography, first law of geography, "everything is related to everything else, but near things are more related than distant things." This law summarizes the first assumption geographers make about the world.
Notable geographers
* Alexander von Humboldt (1769–1859) – published ''Cosmos (Humboldt), Cosmos,'' founder of the subfield biogeography, and established geography as an independent scientific discipline.
* Anne Kelly Knowles (Born 1957) – influential in the use of GIS and geographic methods in History.
* Bernhardus Varenius (1622–1650)– German geographer and author of ''Geographia Generalis''
* Carl O. Sauer (1889–1975) – cultural geographer.
* Carl Ritter (1779–1859) – occupied the first chair of geography, at the Humboldt University of Berlin, University of Berlin, and established geography as an independent scientific discipline.
* Cynthia Brewer – cartographic theorist that created the web application ColorBrewer.
* Dana Tomlin – originator of map algebra
* Doreen Massey (geographer), Doreen Massey (1944–2016) – scholar in the space and places of globalization and its pluralities; winner of the Lauréat Prix International de Géographie Vautrin Lud, Vautrin Lud Prize.
* Ellen Churchill Semple (1863–1932) – first female president of the Association of American Geographers
The American Association of Geographers (AAG) is a non-profit scientific and educational society aimed at advancing the understanding, study, and importance of geography and related fields. Its headquarters is located in Washington, D.C. The ...
.
* Eratosthenes
Eratosthenes of Cyrene (; grc-gre, Ἐρατοσθένης ; – ) was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexand ...
( 276–c. 195/194 BC) – calculated the size of the Earth.
* Ernest Burgess (1886–1966) – creator of the concentric zone model.
* George F. Jenks (1916–1996) – influential in computer cartography and thematic mapping
* Gerardus Mercator (1512–1594) – cartography, cartographer who produced the mercator projection
* Mark Monmonier (born 1943) – cartographic theorist who wrote numerous books contributing to Geographic Information Systems.
* Mei-Po Kwan (born 1962) – contributed significantly to the use of GPS and real-time mapping within GIS
* Michael Frank Goodchild
Michael Frank Goodchild (born February 24, 1944) is a British-American geographer. He is an Emeritus Professor of Geography at the University of California, Santa Barbara. After nineteen years at the University of Western Ontario, including th ...
(born 1944) – GIScience scholar and winner of the RGS founder's medal in 2003.
* Muhammad al-Idrisi (Arabic: أبو عبد الله محمد الإدريسي; Latin: Dreses) (1100–1165) – author of Nuzhatul Mushtaq.
* Nigel Thrift (born 1949) – originator of non-representational theory.
* Paul Vidal de La Blache (1845–1918) – founder of the French school of geopolitics, wrote the principles of human geography.
* Ptolemy (c. 100–c. 170) – compiled Greek and Roman knowledge into the book Geographia.
* Roger Tomlinson (1933 – 2014) – the primary originator of modern geographic information systems.
* Sir Halford Mackinder (1861–1947) – co-founder of the London School of Economics, LSE, Geographical Association.
* Strabo (64/63 BC – c. AD 24) – wrote Geographica, one of the first books outlining the study of geography.
* Waldo Tobler
Waldo Rudolph Tobler (November 16, 1930 – February 20, 2018) was an American-Swiss geographer and cartographer. Tobler's idea that "Everything is related to everything else, but near things are more related than distant things" is referred to ...
(1930–2018) – coined the Tobler's first law of geography, first law of geography and Tobler's second law of geography, second law of geography.
* Walter Christaller (1893–1969) – human geographer and inventor of Central place theory.
* William Morris Davis (1850–1934) – father of American geography and developer of the cycle of erosion.
* Yi-Fu Tuan
Yi-Fu Tuan (; December 5, 1930 – August 10, 2022) was a Chinese-born American geographer. He was one of the key figures in human geography and arguably the most important originator of humanistic geography.
Early life and education
Born in 1 ...
(1930–2022) – Chinese-American scholar credited with starting Humanistic Geography as a discipline.
Institutions and societies
* American Association of Geographers (AAG)
* American Geographical Society (US)
* Anton Melik Geographical Institute (Slovenia)
* Gamma Theta Upsilon (international)
* Institute of Geographical Information Systems (Pakistan)
* International Geographical Union (International)
* National Council for Geographic Education
The National Council for Geographic Education (NCGE), chartered in 1915, is a non-profit scientific and educational society in the United States that promotes and supports geography education.
Annual conference
NCGE holds an annual conference ...
(United States)
* National Geographic Society (United States)
* Royal Canadian Geographical Society (Canada)
* Royal Danish Geographical Society (Denmark)
* Royal Geographical Society (UK)
* Russian Geographical Society (Russia)
Publications
* ''Annals of the American Association of Geographers''
* Antipode (journal), ''Antipode''
* ''Applied Geography''
* ''Concepts and Techniques in Modern Geography''
* ''Dialogues in Human Geography''
* ''Economic Geography (journal), Economic Geography''
* ''Geographia Technica''
* ''Geographical Review''
* ''Geographical Bulletin''
* ''GeoHumanities''
* ''International Journal of Geographical Information Science''
* ''ISPRS International Journal of Geo-Information''
* ''Journal of Maps''
* ''Journal of Rural Studies''
* ''Journal of Transport Geography''
* ''National Geographic''
* ''Professional Geographer''
* ''Progress in Human Geography''
* ''The Geographical Journal''
* ''The Professional Geographer''
Related fields
Geology
The discipline of geography, especially physical geography, and geology have significant overlap. In the past, the two have often shared academic departments at universities, a point that has led to conflict over resources. Both disciplines do seek to understand the rocks on the Earth's surface and the processes that change them over time. Geology employs many of the tools and techniques of technical geographers, such as GIS and remote sensing to aid in geological mapping. However, geology includes research that goes beyond the spatial component, such as the chemical analysis of rocks and biogeochemistry.
History
The discipline of History has significant overlap with geography, especially human geography. Like geology, history and geography have shared university departments. Geography provides the spatial context within which historical events unfold. The physical geographic features of a region, such as its landforms, climate, and resources, shape human settlements, trade routes, and economic activities, which in turn influence the course of historical events. Thus, a historian must have a strong foundation in geography. Historians employ the techniques of technical geographers to create historical atlases and maps.
Planetary science
While the discipline of geography is normally concerned with the Earth, the term can also be informally used to describe the study of other worlds, such as the planets of the Solar System and even beyond. The study of systems larger than the Earth itself usually forms part of Astronomy or Cosmology. The study of other planets is usually called planetary science
Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets) and planetary systems (in particular those of the Solar System) and the processes of the ...
. Alternative terms such as areography (geography of Mars) have been employed to describe the study of other celestial objects. Ultimately, geography may be considered a subdiscipline within planetary science.
See also
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*
Notes
References
External links
Geography
at the ''Encyclopaedia Britannica'' website
Definition of geography at Dictionary.com
Definition of geography by Lexico
Origin and meaning of geography by Online Etymology Dictionary
Topic Dictionaries at Oxford Learner's Dictionaries
{{Use Oxford spelling, date=August 2016
Geography,
Earth sciences
Social sciences
Main topic articles