Location of Mohe City jurisdiction (pink) in Daxing'anling Prefecture (yellow) and Heilongjiang
|Country||People's Republic of China|
|County seat||Xilinji (西林吉镇)|
|• Total||18,233 km2 (7,040 sq mi)|
|Elevation||435 m (1,427 ft)|
|• Density||4.6/km2 (12/sq mi)|
|Time zone||UTC+8 (China Standard)|
|Literal meaning||"Indiferent River"|
Mohe (Chinese :漠河; pinyin :Mòhé) is a county-level city in Daxing'anling Prefecture, Heilongjiang province. It is the northernmost Chinese city.
Mohe is located in the far northwest of Heilongjiang at latitude 52° 10'−53° 33' N and 121° 07'−124° 20' E. It forms a border with Russia's Amur Oblast and Zabaykalsky Krai, where the Amur River flows for 245 kilometres (152 mi). A village, the northernmost Chinese settlement, at the latitude of 53° 29' N known as the Beiji Village (北极村, literally "Northernmost") lies in this city, on the Amur River. On extremely rare occasions, the aurora borealis can be seen.
Mohe spans 150 kilometres (93 mi) from north to south and has a total area of 18,233 square kilometres (7,040 sq mi), occupying 21.6% of the prefecture's (Daxing'anling) area and 3.9% of the provincial (Heilongjiang) area. This creates a population density of only 4.64 persons/km2 (12.0 persons/sqmi).
Mohe, by virtue of its far northern location, is one of the few locations in China with a subarctic climate (Köppen Dwc), 17.2 °C (31.0 °F) annually. The monthly 24-hour average temperature ranges from −28.2 °C (−18.8 °F) in January to 18.3 °C (64.9 °F) in July, with an annual mean of −3.90 °C (25.0 °F), so that the city is only a little south of the line of continuous permafrost. Extreme temperatures have ranged from −52.3 °C (−62 °F) to 39.3 °C (103 °F).) with long, severe winters, and short, warm summers. Winter begins in early to mid-October and lasts until late April, and temperatures then are normally the coldest nationwide. Average temperatures stay below freezing for a total of nearly seven months of the year, and the frost-free period is just short of 90 days; in addition, the diurnal temperature variation is large, averaging
|Climate data for Mohe (1981−2010 normals, extremes 1971−2010)|
|Record high °C (°F)||−4.6|
|Average high °C (°F)||−18.4|
|Daily mean °C (°F)||−28.2|
|Average low °C (°F)||−35.3|
|Record low °C (°F)||−49.6|
|Average precipitation mm (inches)||7.4|
|Average precipitation days (≥ 0.1 mm)||7.6||5.7||4.6||7.7||9.3||14.9||16.2||16.2||11.6||5.6||8.7||9.3||117.4|
|Average relative humidity (%)||71||67||63||56||56||70||79||81||75||70||73||72||69|
|Source: China Meteorological Administration, Weather China (precipitation days 1971−2000, all-time record low|
Mohe railway station, opened in 1972, is the northernmost railway station in China. It has regular passenger service to Harbin, Qiqihar and Shenyang.
Mohe Gulian Airport, opened 2008, is the nation's northernmost airport.
The subarctic climate is a climate characterised by long, usually very cold winters, and short, cool to mild summers. It is found on large landmasses, away from the moderating effects of an ocean, generally at latitudes from 50° to 70°N poleward of the humid continental climates. Subarctic or boreal climates are the source regions for the cold air that affects temperate latitudes to the south in winter. These climates represent Köppen climate classification Dfc, Dwc, Dsc, Dfd, Dwd and Dsd.
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