Da Qaidam

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Da Qaidam

大柴旦 · ᠶᠡᠬᠡ ᠴᠠᠢᠢᠳᠠᠮ ᠤᠨ · ཚྭ་འདམ་ཆེ་བའི་

Tatsaitan
Da Qaidam coach terminal
Da Qaidam coach terminal
Location of Da Qaidam (red) in Haixi Prefecture (yellow) and Qinghai
Location of Da Qaidam (red) in Haixi Prefecture (yellow) and Qinghai
Da Qaidam is located in Qinghai
Da Qaidam
Da Qaidam
Location of the seat in Qinghai
Coordinates: 37°50′N 95°18′E / 37.833°N 95.300°E / 37.833; 95.300Coordinates: 37°50′N 95°18′E / 37.833°N 95.300°E / 37.833; 95.300
CountryPeople's Republic of China
ProvinceQinghai
Autonomous prefectureHaixi
Township-level divisions2 towns
County seatQaidam (柴旦)
Elevation
3,174 m (10,413 ft)
Time zoneUTC+8 (China Standard)
Websitewww.hxdcd.gov.cn
Da Qaidam
Chinese name
Chinese大柴旦
Literal meaningBig Qaidam
Greater Qaidam
Tibetan name
Tibetanཚྭའདམཆེབའི
Mongolian name
Mongolian scriptᠶᠡᠬᠡ ᠴᠠᠢᠢᠳᠠᠮᠤᠨ

Da Qaidam is an administrative committee in Haixi Prefecture in northwestern Qinghai Province, China. It borders Gansu to the north.

The area administered as Da Qaidam is divided between the two towns of Qaidam (柴旦, itself also called Da Qaidam) Xitieshan (锡铁山). The former is the seat of Da Qaidam's administration. It lies at an altitude of 3,174 m (10,413 ft) above sea level.[1]

Name[edit]

Da Qaidam is a combination of the Hanyu Pinyin romanization of the Mandarin pronunciation of (), the Chinese word meaning "big" or "greater", and the Zangwen Pinyin romanization of the Tibetan name ཚྭའདམ (qaidam), meaning "salt marsh" and referencing the surrounding Qaidam Basin. The pinyin romanization of the transcription of "Qaidam" into Chinese characters is Cháidàn.

Geography[edit]

Da Qaidam borders Delingha to the east, Lenghu to the west, Golmud across the Qarhan Playa to the south, and Jiuquan (Gansu) to the north, and is part of the northern Qaidam Basin.

Similar to neighbouring Golmud, Da Qaidam has a arid climate (Köppen BWk), with long, cold winters, and warm summers, although due to its location further north and elevation more than 350 metres (1,150 ft) higher than Golmud, its climate is also subalpine in nature. The monthly 24-hour average temperature drops to −13.4 °C (7.9 °F) in January and rises to 15.5 °C (60 °F) in July, while the annual mean is 1.88 °C (35.4 °F). Precipitation is very low, totaling only 83 mm (3.27 in) per annum, falling on 35 days, most of which are during the summer. With monthly percent possible sunshine ranging from 65% in July to 82% in October, the area receives 3,257 hours of bright sunshine annually.

Climate data for Da Qaidam (1971−2000)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) −4.1
(24.6)
−0.6
(30.9)
4.6
(40.3)
10.4
(50.7)
15.8
(60.4)
19.4
(66.9)
21.8
(71.2)
21.4
(70.5)
16.4
(61.5)
9.7
(49.5)
2.6
(36.7)
−2.2
(28.0)
9.6
(49.3)
Average low °C (°F) −21.1
(−6.0)
−17
(1)
−10.8
(12.6)
−5
(23)
1.2
(34.2)
6.0
(42.8)
8.8
(47.8)
7.7
(45.9)
2.0
(35.6)
−6.1
(21.0)
−13.6
(7.5)
−18.7
(−1.7)
−5.5
(22.0)
Average precipitation mm (inches) 2.1
(0.08)
1.9
(0.07)
2.9
(0.11)
2.3
(0.09)
8.9
(0.35)
21.4
(0.84)
21.8
(0.86)
14.4
(0.57)
4.7
(0.19)
0.8
(0.03)
0.6
(0.02)
1.2
(0.05)
83.0
(3.27)
Average precipitation days (≥ 0.1 mm) 2.5 2.0 2.0 1.6 3.1 5.8 7.5 4.8 2.5 0.7 0.7 1.5 34.7
Average relative humidity (%) 44 35 30 27 30 37 40 37 34 30 35 40 35
Mean monthly sunshine hours 233.8 225.9 267.7 290.2 315.3 293.0 293.2 297.7 278.2 285.4 246.4 230.6 3,257.4
Percent possible sunshine 77 75 73 74 72 67 65 71 75 82 81 78 74
Source: China Meteorological Administration

Economy[edit]

As elsewhere in the Qaidam Basin, mining industries are of major importance in Da Qaidam. There is a lead mine in Xitieshan, the Xitieshan Lead Mine (锡铁山),[2] as well as a number of salt lakes where potash and related products are extracted.

Transportation[edit]

China National Highway 215 and China National Highway 315 pass through Da Qaidam and meet here. Yinmaxia railway station and Xitieshan railway station on the Qinghai–Tibet Railway are both located within Da Qaidam.[1]

References[edit]

  1. ^ a b "Archived copy". Archived from the original on 2013-04-10. Retrieved 2013-04-03.CS1 maint: archived copy as title (link)
  2. ^ At 37°19′00″N 95°34′00″E / 37.31667°N 95.56667°E / 37.31667; 95.56667.

External links[edit]