|
Mobara Airfield
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 *Midori-ku, Chiba * Ichihara * Nagara *Chōna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cities Of Japan
A is a local 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 the Minister for Internal ... [...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 subsi ... [...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. The word '' kofun'' is Japanese for the type of 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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kofun
are megalithic tombs or tumuli in Northeast Asia. ''Kofun'' were mainly constructed in the Japanese archipelago between the middle of the 3rd century to the early 7th century CE.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- Furuichi kofungun or tumulus clusters were inscribed on the UNESCO World Heritage List in 2019, while Ishibutai Kofun is one of a number in Asuka-Fujiwara residing on the 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 above. There are also circular-type (), "two conjoined rectangles" typed (), and square-type () kofun. Orientation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yayoi Period
The started at the beginning of the Neolithic in Japan, continued through the Bronze Age, and towards its end crossed into the Iron Age. Since the 1980s, scholars have argued that a period previously classified as a transition from the Jōmon period should be reclassified as Early Yayoi. The date of the beginning of this transition is controversial, with estimates ranging from the 10th to the 3rd centuries BC. The period is named after the Yayoi, Tokyo, neighbourhood of Tokyo where Archaeology, archaeologists first uncovered artifacts and features from that era in the late 19th century. Distinguishing characteristics of the Yayoi period include the appearance of new Yayoi pottery styles and the start of an intensive rice agriculture in paddy fields. A hierarchical social class structure dates from this period and has its origin in China. Techniques in metallurgy based on the use of bronze and iron were also introduced from China via Korea to Japan in this period. The Yayoi foll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jōmon Period
The is the time in Japanese history, traditionally dated between 6,000–300 BCE, during which Japan was inhabited by a diverse hunter-gatherer and early agriculturalist population united through a common Jōmon 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 sherds of pottery in 1877 and subsequently translated it into 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; pottery figurines and vessels; and lacquerware.Imamura, K. (1996) ''Prehistoric Japan: New Perspectives on Insular East Asia''. Honolulu: University of Hawaii Press It is often compared to pre-C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midden
A midden (also kitchen midden or shell heap) is an old dump for domestic waste which may consist of animal bone, 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 mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Meteorological Agency
The , abbreviated JMA, is an agency of the Ministry of Land, Infrastructure, Transport and Tourism. It is charged with gathering and providing results for the public in Japan that are obtained from data based on daily scientific observation and research into natural phenomena in the fields of meteorology, hydrology, seismology and volcanology, among other related scientific fields. Its headquarters is located in Minato, Tokyo. JMA is responsible for gathering and reporting weather data and forecasts for the general public, as well as providing aviation and marine weather. JMA other responsibilities include issuing warnings for volcanic eruptions, and the nationwide issuance of earthquake warnings of the Earthquake Early Warning (EEW) system. JMA is also designated one of the Regional Specialized Meteorological Centers of the World Meteorological Organization (WMO). It is responsible for forecasting, naming, and distributing warnings for tropical cyclones in the Northwestern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humid Subtropical Climate
A humid subtropical climate is a zone of climate characterized by hot and humid 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. 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 classification was officially created under the Trewartha climate classification. In this classification, climates are termed humid subtropical when the ... [...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 *Mobara *Chōsei *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 August, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Mobara Airfield"){kind=logo}
