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Web GIS
Web GIS (also known as Web-Based GIS), or Web Geographic Information Systems , are GIS that employ the World Wide Web to facilitate the storage, visualization, analysis, and distribution of spatial information over the Internet. Introduction The World Wide Web, or the Web, is an information system that uses the internet to host, share, and distribute documents, images, and other data. Web GIS involves using the World Wide Web to facilitate GIS tasks traditionally done on a desktop computer, as well as enabling the sharing of maps and spatial data. While Web GIS and Internet GIS are sometimes used interchangeably, they are different concepts. Web GIS is a subset of Internet GIS, which is itself a subset of distributed GIS, which itself is a subset of broader Geographic information system. The most common application of Web GIS is Web mapping, so much so that the two terms are often used interchangeably in much the same way as Digital mapping and GIS. However, Web GIS and web mapp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoservices Server With Apps
Geoservices is an upstream oilfield services subsidiary of Schlumberger Limited. The company specializes in mud logging and slickline production. History The company was founded by Gaston Rebilly in 1958 and based in Paris, France. Geoservices had approximately 5000 employees in 52 countries when it was acquired by Schlumberger Limited for $1.07 billion dollars in March 2010 from Gaston Rebilly and his family. See also * List of oilfield service companies This is a list of oilfield service companies – notable companies that provide services to the petroleum exploration and production industry but do not typically produce petroleum. In the list, notable subsidiary companies and divisions are list ... References {{Authority control Oilfield services companies Schlumberger 2010 mergers and acquisitions Engineering companies of France ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by a virus, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first known case was identified in Wuhan, China, in December 2019. The disease quickly spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 are variable but often include fever, cough, headache, fatigue, breathing difficulties, loss of smell, and loss of taste. Symptoms may begin one to fourteen days after exposure to the virus. At least a third of people who are infected do not develop noticeable symptoms. Of those who develop symptoms noticeable enough to be classified as patients, most (81%) develop mild to moderate symptoms (up to mild pneumonia), while 14% develop severe symptoms ( dyspnea, hypoxia, or more than 50% lung involvement on imaging), and 5% develop critical symptoms ( respiratory failure, shock, or multiorgan dysfunction). Older people are at a higher risk of developing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Of GIS Software ...
This is a comparison of notable GIS software. To be included on this list, the software must have a linked existing article. License, source, & operating system support Pure server Map servers Map caches Pure web client Libraries See also * Open Source Geospatial Foundation (OSGeo) * Geographic information system software * GIS Live DVD References External links An Overview of Free & Open Source Desktop GIS (FOS-GIS)- GIS software comparison (2008) A Survey of Open Source GIS- GIS software comparison (2007) {{DEFAULTSORT:Comparison Of Geographic Information Systems Software GIS software GIS A geographic information system (GIS) is a type of database containing geographic data (that is, descriptions of phenomena for which location is relevant), combined with software tools for managing, analyzing, and visualizing those data. In a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automotive Navigation System
An automotive navigation system is part of the automobile controls or a third party add-on used to find direction in an automobile. It typically uses a satellite navigation device to get its position data which is then correlated to a position on a road. When directions are needed routing can be calculated. On the fly traffic information (road closures, congestion) can be used to adjust the route. Dead reckoning using distance data from sensors attached to the drivetrain, an accelerometer, a gyroscope, and a magnetometer can be used for greater reliability, as GNSS signal loss and/or multipath can occur due to urban canyons or tunnels. Mathematically, automotive navigation is based on the shortest path problem, within graph theory, which examines how to identify the path that best meets some criteria (shortest, cheapest, fastest, etc.) between two points in a large network. Automotive navigation systems are crucial for the development of self-driving cars. History Automotive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
At-location Mapping
At-location mapping (ALM) is closely related to location-based services (LBS). However, ALM focuses on the delivery of maps 'at location', using mobile devices that are enabled with Global Positioning System (GPS) technology. At-location mapping devices, like personal digital assistants (PDAs) or cellular telephones, deliver maps on small screens that can be used for navigation or wayfinding. The attributes of these maps are that they are small, perhaps only 100 × 100 pixel In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a raster image, or the smallest point in an all points addressable display device. In most digital display devices, pixels are the s ...s and they must work adequately on small colour screens. ALM is a developing area that contributes geographical content to services provided by mobile devices using the mobile Internet of cellular telephone services. Geographic information systems L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AM/FM/GIS
AM/FM/GIS stands for Automated Mapping (AM), Facilities Management (FM), and Geographic Information Systems (GIS). It is a subset of GIS associated with public utilities like gas, electric, water and telecommunications. The term AM/FM/GIS mostly refers to GIS software that allows utility users to digitize, manage and analyze their utility network data. This data is stored in an underlying GIS database which also maintains the associations between the graphical entities and the attributes. Components There are mainly two major components of any AM/FM/GIS system, the ''graphical component'' and the ''database component''. . Graphical component The ''graphical component'', as the term suggests, deals with graphical data which can consist of different types of real world entities or objects represented graphically by shapes or geometries. For example, a street or road can be graphically represented by a linear geometry or a line. Other types of graphical objects can be individual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Private Network
A virtual private network (VPN) extends a private network across a public network and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network. The benefits of a VPN include increases in functionality, security, and management of the private network. It provides access to resources that are inaccessible on the public network and is typically used for remote workers. Encryption is common, although not an inherent part of a VPN connection. A VPN is created by establishing a virtual point-to-point connection through the use of dedicated circuits or with tunneling protocols over existing networks. A VPN available from the public Internet can provide some of the benefits of a wide area network (WAN). From a user perspective, the resources available within the private network can be accessed remotely. Types Virtual private networks may be classified into several categories: ;Remote ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infodemic
An infodemic is a rapid and far-reaching spread of both accurate and inaccurate information about something, such as a disease. The word is a portmanteau of "information" and "epidemic." As facts, rumors, and fears mix and disperse, it becomes difficult to learn essential information about an issue. In 2020, alongside the COVID-19 pandemic, an infodemic of disinformation raises concerns for information quality in online environment. This effect was demonstrated in a study of news stories shared on Twitter; in the study, news stories rated as incorrect by fact-checking organizations spread to far more people than factual articles did. History In his 11 May 2003 article in the ''Washington Post''also published in ''Newsday'', ''The Record'', the ''Oakland Tribune'', and the ''China Daily''foreign policy expert David Rothkopf, referred to the information epidemicor "infodemic", in the context of the 2002–2004 SARS outbreak. The outbreak of SARS, which was caused by Severe acut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 understand the world, and how it can be captured, organized, and analyzed. It can be contrasted with geographic information systems (GIS), which are the actual repositories of such data, the software tools for carrying out relevant tasks, and the profession of GIS users. That said, one of the major goals of GIScience is to find practical ways to improve GIS data, software, and professional practice. it is more focused on how gis is applied in real life British geographer Michael Goodchild defined this area in the 1990s and summarized its core interests, including spatial analysis, visualization, and the representation of uncertainty. GIScience is conceptually related to geomatics, information science, computer science, but it claims t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geographic Data
Geographic data and information is defined in the ISO/TC 211 series of standards as data and information having an implicit or explicit association with a location relative to Earth (a geographic location or geographic position). It is also called geospatial data and information, georeferenced data and information, as well as geodata and geoinformation. Approximately 90% of government sourced data has a location component. Location information (known by the many names mentioned here) is stored in a geographic information system (GIS). There are also many different types of geodata, including vector files, raster files, geographic databases, web files, and multi-temporal data. Fields of study Geographic data and information are the subject of a number of overlapping fields of study, mainly: * Geocomputation * Geographic information science * Geoinformatics * Geomatics * Geovisualization This is in addition to other more specific branches, such as: * Cartography * Geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gazetteer
A gazetteer is a geographical index or directory used in conjunction with a map or atlas.Aurousseau, 61. It typically contains information concerning the geographical makeup, social statistics and physical features of a country, region, or continent. Content of a gazetteer can include a subject's location, dimensions of peaks and waterways, population, gross domestic product and literacy rate. This information is generally divided into topics with entries listed in alphabetical order. Ancient Greek gazetteers are known to have existed since the Hellenistic era. The first known Chinese gazetteer was released by the first century, and with the age of print media in China by the ninth century, the Chinese gentry became invested in producing gazetteers for their local areas as a source of information as well as local pride. The geographer Stephanus of Byzantium wrote a geographical dictionary (which currently has missing parts) in the sixth century which influenced later Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ontology (information Science)
In computer science and information science, an ontology encompasses a representation, formal naming, and definition of the categories, properties, and relations between the concepts, data, and entities that substantiate one, many, or all domains of discourse. More simply, an ontology is a way of showing the properties of a subject area and how they are related, by defining a set of concepts and categories that represent the subject. Every academic discipline or field creates ontologies to limit complexity and organize data into information and knowledge. Each uses ontological assumptions to frame explicit theories, research and applications. New ontologies may improve problem solving within that domain. Translating research papers within every field is a problem made easier when experts from different countries maintain a controlled vocabulary of jargon between each of their languages. For instance, the definition and ontology of economics is a primary concern in Marxist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
