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Mobara Arcas
is a city located in Chiba Prefecture. , the city had an estimated population of 88,330 in 40,869 households and a population density of 880 persons per km2. The total area of the city is Geography Mobara is located in an inland area of north-central Bōsō Peninsula, about 25 kilometers from the prefectural capital at Chiba and 50 to 60 kilometers from the center of Tokyo. Most of the city is the Kujukuri Plain, and the mountains in the western part of the city are formed by the Bōsō Hill Range. The elevation of the city is about 8 to 9 meters above sea level in the lowlands of the southeast, about 11 meters in the city, and 20 to 100 meters in the west, with a maximum of 117.7 meters. In some areas, land subsidence due to human factors such as pumping of surface groundwater and natural gas brackish water has become a problem, and subsidence of up to about 10 cm has been observed. Surrounding municipalities Chiba Prefecture *Chōnan * Ichihara * Midori-ku * Nagara *Ōami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cities Of Japan
A is a local Public administration, administrative unit in Japan. Cities are ranked on the same level as and , with the difference that they are not a component of . Like other contemporary administrative units, they are defined by the Local Autonomy Law of 1947. City status Article 8 of the Local Autonomy Law sets the following conditions for a municipality to be designated as a city: *Population must generally be 50,000 or greater (原則として人口5万人以上) *At least 60% of households must be established in a central urban area (中心市街地の戸数が全戸数の6割以上) *At least 60% of households must be employed in commerce, industry or other urban occupations (商工業等の都市的業態に従事する世帯人口が全人口の6割以上) *Any other conditions set by prefectural ordinance must be satisfied (他に当該都道府県の条例で定める要件を満たしていること) The designation is approved by the prefectural governor and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Subsidence
Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope movement. Processes that lead to subsidence include dissolution of underlying carbonate rock by groundwater; gradual compaction of sediments; withdrawal of fluid lava from beneath a solidified crust of rock; mining; pumping of subsurface fluids, such as groundwater or petroleum; or warping of the Earth's crust by tectonic forces. Subsidence resulting from tectonic deformation of the crust is known as tectonic subsidence and can create accommodation for sediments to accumulate and eventually lithify into sedimentary rock. Ground subsidence is of global concern to geologists, geotechnical engineers, surveyors, engineers, urban planners, landowners, and the public in general.National Research Council, 1991. ''Mitigating losses from land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kofun Period
The is an era in the history of Japan from about 300 to 538 AD (the date of the introduction of Buddhism), following the Yayoi period. The Kofun and the subsequent Asuka periods are sometimes collectively called the Yamato period. This period is the earliest era of recorded history in Japan, but studies depend heavily on archaeology since the chronology of historical sources tends to be distorted. ''Kofun'' is Japanese for the type of tumulus, burial mound dating from this era. It was a period of cultural import. Continuing from the Yayoi period, the Kofun period is characterized by influence from China and the Korean Peninsula; archaeologists consider it a shared culture across the southern Korean Peninsula, Kyūshū and Honshū. On the other hand, the most prosperous keyhole-shaped burial mounds in Japan during this period were approximately 5,000 in Japan from the middle of the 3rd century in the Yayoi period to the 7th century in the Asuka period, and many of them had huge tom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kofun
are megalithic tombs or tumulus, tumuli in Northeast Asia. ''Kofun'' were mainly constructed in the Japanese archipelago between the middle of the 3rd century to the early 7th century AD.岡田裕之「前方後円墳」『日本古代史大辞典』大和書房、2006年。 The term is the origin of the name of the Kofun period, which indicates the middle 3rd century to early–middle 6th century. Many ''kofun'' have distinctive keyhole-shaped mounds (). The Mozu kofungun, Mozu-Furuichi kofungun, Furuichi kofungun or tumulus clusters were inscribed on the World Heritage Sites in Japan, UNESCO World Heritage List in 2019, while Ishibutai Kofun is one of a number in Asuka-Fujiwara residing on the World Heritage Sites in Japan#Tentative List, Tentative List. Overview The ''kofun tumuli'' have assumed various shapes throughout history. The most common type of ''kofun'' is known as a , which is shaped like a keyhole, having one square end and one circular end, when viewed from a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yayoi Period
The Yayoi period (弥生時代, ''Yayoi jidai'') (c. 300 BC – 300 AD) is one of the major historical periods of the Japanese archipelago. It is generally defined as the era between the beginning of food production in Japan and the emergence of keyhole-shaped burial mounds (前方後円墳, ''zenpō-kōen-fun''). Chronologically, it spans from around the 10th century BCE or 9th–8th century BCE to the mid-3rd century CE. Following the Jōmon period, which was characterized by a hunter-gatherer economy, the Yayoi period marked the transition to a productive economy based on wet-rice agriculture. In the latter half of the late Yayoi period (around the 1st century CE), large regional powers emerged throughout western Japan, including the Tokai and Hokuriku regions. By the end of the 2nd century, the political entity known as Wa-koku (倭国) had formed. It is generally considered that the Yayoi period transitioned into the Kofun period around the mid-3rd century, although the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jōmon Period
In Japanese history, the is the time between , during which Japan was inhabited by the Jōmon people, a diverse hunter-gatherer and early agriculturalist population united by a common culture, which reached a considerable degree of sedentism and cultural complexity. The name "cord-marked" was first applied by the American zoologist and orientalist Edward S. Morse, who discovered Glossary of archaeology#potsherd, sherds of pottery in 1877 and subsequently translated "straw-rope pattern" into Japanese language, Japanese as ''Jōmon''.Mason, 14 The pottery style characteristic of the first phases of Jōmon culture was decorated by impressing cords into the surface of wet clay and is generally accepted to be among the oldest in the world. The Jōmon period was rich in tools and jewelry made from bone, stone, shell and antler; Jōmon pottery, pottery figurines and vessels; and lacquerware.Imamura, K. (1996) ''Prehistoric Japan: New Perspectives on Insular East Asia''. Honolulu: Unive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midden
A midden is an old dump for domestic waste. It may consist of animal bones, human excrement, botanical material, mollusc shells, potsherds, lithics (especially debitage), and other artifacts and ecofacts associated with past human occupation. These features provide a useful resource for archaeologists who wish to study the diets and habits of past societies. Middens with damp, anaerobic conditions can even preserve organic remains in deposits as the debris of daily life are tossed on the pile. Each individual toss will contribute a different mix of materials depending upon the activity associated with that particular toss. During the course of deposition sedimentary material is deposited as well. Different mechanisms, from wind and water to animal digs, create a matrix which can also be analysed to provide seasonal and climatic information. In some middens individual dumps of material can be discerned and analysed. Shells A shell midden or shell mound is an arc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Meteorological Agency
The Japan Meteorological Agency (JMA; ''気象庁, Kishō-chō'') is a division of the Ministry of Land, Infrastructure, Transport and Tourism dedicated to the Scientific, scientific observation and research of natural phenomena. Headquartered in Minato, Tokyo the government agency, agency collects data on meteorology, hydrology, seismology, volcanology, and other related fields. The JMA is responsible for collecting and disseminating weather data and Forecasting, forecasts to the public, as well as providing specialized information for aviation and Marine weather forecasting, marine sectors. Additionally, the JMA issues warnings for volcanic eruptions and is integral to the nationwide Earthquake Early Warning (Japan), Earthquake Early Warning (EEW) system. As one of the Regional Specialized Meteorological Centers designated by the World Meteorological Organization (WMO), the JMA also Forecasting, forecasts, Tropical cyclone naming, names, and distributes warnings for tropical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humid Subtropical Climate
A humid subtropical climate is a subtropical -temperate climate type, characterized by long and hot summers, and cool to mild winters. These climates normally lie on the southeast side of all continents (except Antarctica), generally between latitudes 25° and 40° and are located poleward from adjacent tropical climates, and equatorward from either humid continental (in North America and Asia) or oceanic climates (in other continents). It is also known as warm temperate climate in some climate classifications. Under the Köppen climate classification, ''Cfa'' and ''Cwa'' climates are either described as humid subtropical climates or warm temperate climates. This climate features mean temperature in the coldest month between (or ) and and mean temperature in the warmest month or higher. However, while some climatologists have opted to describe this climate type as a "humid subtropical climate", Köppen himself never used this term. The humid subtropical climate classific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shirako, Chiba
260px, Shirako town hall is a town located in Chiba Prefecture, Japan. , the town had an estimated population of 11,040 in 4942 households and a population density of 400 persons per km². The total area of the town is . Geography Shirako is located in eastern Chiba Prefecture, about 30 kilometers from the prefectural capital at Chiba and within 60 to 70 kilometers from the center of Tokyo. Facing the Pacific Ocean, it is included in the Kujūkuri Plain and has a gentle terrain. It has a portion the Kujūkuri Beach, and the Nabaki River runs through the center of the town. Neighboring municipalities Chiba Prefecture * Chōsei *Mobara *Ōamishirasato Climate Shirako has a humid subtropical climate (Köppen ''Cfa'') characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Shirako is 15.3 °C. The average annual rainfall is 1633 mm with September as the wettest month. The temperatures are highest on average in Augus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagara, Chiba
270px, Nagara town hall is a town located in Chiba Prefecture, Japan. , the town had an estimated population of 6,754 in 2976 households and a population density of 140 persons per km². The total area of the town is . Geography Located in the mountainous area that divides the center of Bōsō Peninsula, Nagara has little flat terrain. The town consists primarily of rolling, sometimes steep, hills. While the town has no major rivers, several dams, including the Nagara Dam, have been constructed to support the water sources of the Bōsō Peninsula. Nagara is located about 25 kilometers from the prefectural capital at Chiba and within 50 to 60 kilometers from the center of Tokyo. Neighboring municipalities Chiba Prefecture * Chōnan * Ichihara * Mobara Climate Nagara has a humid subtropical climate (Köppen ''Cfa'') characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Nagara is 14.8 °C. The average annual rainfal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
