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July 1 Glacier
__NOTOC__ The July 1 Glacier or Qiyi Glacier () is a glacier in Jiayuguan City, Gansu, China, and on the northern slope of the Tola Mountain in the Qilian Mountains. It is the closest glacier to cities in Asia, but it has been shrinking in recent years. This glacier was discovered by a geological worker of the Lanzhou Branch of the Chinese Academy of Sciences and a glacier scholar of the Soviet Union on July 1, 1958. The glacier is on a hillside with a slope that is less than 45 degrees. The elevation of the ice peak is 5158.8 meters, and the elevation of the front edge of the ice tongue is 4304 meters. The average thickness of the ice layer of the glacier is 78 meters, and the thickest part can even reach 120 meters. The total length of the July 1 glacier is 3.5 kilometers, and the widest place is 2.4 kilometers. There are 160 million cubic meters of water storage. The Tourist Area in the July 1 Glacier covers about 4 square kilometers. Location The July 1 Glacier is loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jiayuguan City
Jiayuguan (, ) is a prefecture-level city in northwestern Gansu province, with a population of 312,663 as of the 2020 census. Compared with the 231,853 people in the sixth national census in 2010, there was an increase of 80,810 people, with an average annual increase of 3.04%. Its built-up (or metro) area was home to 768,274 inhabitants made of Jiayuguan City and Suzhou urban district of Jiuquan City now being conurbated. It is named after the nearby Jiayu Pass, the largest and most intact pass of the Great Wall of China. Jiayuguan is a major industrial city. It was established in 1958, following the establishment of Jiuquan Steel Company, the largest steel company in Gansu. Mining and mineral processing are the primary industries of the city. By area, it is by far the smallest prefecture-level division of Gansu. The fortress at Jiayuguan is situated at the end of the portion of the Great Wall of China which was built by the Ming Dynasty, in the 14th century. Administration A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hinterland
Hinterland is a German word meaning "the land behind" (a city, a port, or similar). Its use in English was first documented by the geographer George Chisholm in his ''Handbook of Commercial Geography'' (1888). Originally the term was associated with the area of a port in which materials for export and import are stored and shipped. Subsequently, the use of the word expanded to include any area under the influence of a particular human settlement. Geographic region * An area behind a coast or the shoreline of a river. Specifically, by the ''doctrine of the hinterland,'' the hinterland is the inland region lying behind a port and is claimed by the state that owns the coast. * In shipping usage, a port's hinterland is the area that it serves, both for imports and for exports. * The term is also used to refer to the area around a city or town. * More generally, ''hinterland'' can refer to the rural area economically tied to an urban catchment area. The size of a hinterland can depe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Warming
In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global average temperature is more rapid than previous changes, and is primarily caused by humans burning fossil fuels. Fossil fuel use, deforestation, and some agricultural and industrial practices increase greenhouse gases, notably carbon dioxide and methane. Greenhouse gases absorb some of the heat that the Earth radiates after it warms from sunlight. Larger amounts of these gases trap more heat in Earth's lower atmosphere, causing global warming. Due to climate change, deserts are expanding, while heat waves and wildfires are becoming more common. Increased warming in the Arctic has contributed to melting permafrost, glacial retreat and sea ice loss. Higher temperatures are also causing m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shi Yafeng
Shi Yafeng (; March 21, 1919 – February 13, 2011) was Chinese geographer and glaciologist. He was an academician of the Chinese Academy of Sciences. He was an expert on geography and glaciology, and regarded as the "Father of Chinese Glaciology". Life Shi was born in Haimen, Jiangsu on March 21, 1919. He did his undergraduate and postgraduate studies both at Zhejiang University. He led the Batoula Glacier Investigation Team, Glaciology and Geocryology Institute of Chinese Academe Science in 1978, which was the first modern Chinese team to systematically investigate glaciers. He was a researcher, vice-director, director, honorary director of the Lanzhou Glacier Frozen Earth Institute, Chinese Academy of Sciences The Chinese Academy of Sciences (CAS); ), known by Academia Sinica in English until the 1980s, is the national academy of the People's Republic of China for natural sciences. It has historical origins in the Academia Sinica during the Republ .... Works * monograp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciologist
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, climatology, meteorology, hydrology, biology, and ecology. The impact of glaciers on people includes the fields of human geography and anthropology. The discoveries of water ice on the Moon, Mars, Europa and Pluto add an extraterrestrial component to the field, which is referred to as "astroglaciology". Overview A glacier is an extended mass of ice formed from snow falling and accumulating over a long period of time; glaciers move very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers. Areas of study within glaciology include glacial history and the reconstruction of past glaciation. A glaciologist is a person who studies glaciers. A glacial geologist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowflake
A snowflake is a single ice crystal that has achieved a sufficient size, and may have amalgamated with others, which falls through the Earth's atmosphere as snow.Knight, C.; Knight, N. (1973). Snow crystals. Scientific American, vol. 228, no. 1, pp. 100–107.Hobbs, P.V. 1974. Ice Physics. Oxford: Clarendon Press. Each flake nucleates around a dust particle in supersaturated air masses by attracting Supercooling, supercooled cloud water droplets, which freezing, freeze and accrete in crystal form. Complex shapes Emergence, emerge as the flake moves through differing temperature and humidity zones in the atmosphere, such that individual snowflakes differ in detail from one another, but may be categorized in eight broad classifications and at least 80 individual variants. The main constituent shapes for ice crystals, from which combinations may occur, are needle, column, plate, and rime. Snow appears white in color despite being made of clear ice. This is due to diffuse reflection ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precipitation
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail. Precipitation occurs when a portion of the atmosphere becomes saturated with water vapor (reaching 100% relative humidity), so that the water condenses and "precipitates" or falls. Thus, fog and mist are not precipitation but colloids, because the water vapor does not condense sufficiently to precipitate. Two processes, possibly acting together, can lead to air becoming saturated: cooling the air or adding water vapor to the air. Precipitation forms as smaller droplets coalesce via collision with other rain drops or ice crystals within a cloud. Short, intense periods of rain in scattered locations are called showers. Moisture that is lifted or otherwise forced to rise over a layer of sub-freezing air at the surface may be condensed into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexi Corridor
The Hexi Corridor (, Xiao'erjing: حْسِ ظِوْلاْ, IPA: ), also known as the Gansu Corridor, is an important historical region located in the modern western Gansu province of China. It refers to a narrow stretch of traversable and relatively arable plain west of the Yellow River's Ordos Loop, flanked between the much more elevated and inhospitable terrains of the Mongolian and Tibetan Plateaus. The name ''Hexi'', refers to "west of the river". As part of the Northern Silk Road, running northwest from the western section of the Ordos Loop between Yinchuan and Lanzhou, the Hexi Corridor was the most important trade route in Northwest China. It linked China ''proper'' to the historic Western Regions for traders and military incursions into Central Asia. It is a string of oases along the northern edges of the Qilian Mountains and Altyn-Tagh, with the high and desolate Tibetan Plateau further to the south. To the north are the Longshou, Heli and Mazong Mountains separatin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk ( Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Government ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gansu
Gansu (, ; alternately romanized as Kansu) is a province in Northwest China. Its capital and largest city is Lanzhou, in the southeast part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibetan and Loess plateaus and borders Mongolia ( Govi-Altai Province), Inner Mongolia and Ningxia to the north, Xinjiang and Qinghai to the west, Sichuan to the south and Shaanxi to the east. The Yellow River passes through the southern part of the province. Part of Gansu's territory is located in the Gobi Desert. The Qilian mountains are located in the south of the Province. Gansu has a population of 26 million, ranking 22nd in China. Its population is mostly Han, along with Hui, Dongxiang and Tibetan minorities. The most common language is Mandarin. Gansu is among the poorest administrative divisions in China, ranking 31st, last place, in GDP per capita as of 2019. The State of Qin originated in what is now southeastern Gansu and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Academy Of Sciences
The Chinese Academy of Sciences (CAS); ), known by Academia Sinica in English until the 1980s, is the national academy of the People's Republic of China for natural sciences. It has historical origins in the Academia Sinica during the Republican era and was formerly also known by that name. Collectively known as the "Two Academies (两院)" along with the Chinese Academy of Engineering, it functions as the national scientific think tank and academic governing body, providing advisory and appraisal services on issues stemming from the national economy, social development, and science and technology progress. It is headquartered in Xicheng District, Beijing, with branch institutes all over mainland China. It has also created hundreds of commercial enterprises, Lenovo being one of the most famous. CAS is the world's largest research organization. It had 60,000 researchers in 2018 and 114 institutes in 2016, and has been consistently ranked among the top research organizations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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