Da Qaidam
Da Qaidam
大柴旦 · ᠶᠡᠬᠡ ᠴᠠᠢᠢᠳᠠᠮ ᠤᠨ · ཚྭ་འདམ་ཆེ་བའི་ Tatsaitan | |
|---|---|
China Standard) | |
| Website | www |
| Da Qaidam | |
|---|---|
| Chinese name | |
Tibetan | ཚྭ་འདམ་ཆེ་བའི་ |
| Mongolian name | |
| Mongolian script | ᠶᠡᠬᠡ ᠴᠠᠢᠢᠳᠠᠮ ᠤᠨ |
Da Qaidam is a
Haixi Prefecture in northwestern Qinghai province, China. It borders Gansu province
to the north.
Etymology
Da Qaidam is a combination of the
romanization of the Tibetan name ཚྭ་འདམ (qaidam), meaning "salt marsh" and referencing the surrounding Qaidam Basin. The Mandarin pinyin romanization of the Chinese transcription
of Qaidam is "Cháidàn".
Administrative divisions
The area administered as Da Qaidam is divided into two towns. The seat of Da Qaidam's administration is Qaidam Town, which lies at an altitude of 3,174 m (10,413 ft) above sea level.[2]
| Name | Simplified Chinese | Hanyu Pinyin | Tibetan | Wylie | Mongolian (traditional script) | Mongolian (Cyrillic) | Administrative division code |
|---|---|---|---|---|---|---|---|
| Town | |||||||
| Qaidam Town | 柴旦镇 | Cháidàn Zhèn | ཚྭ་འདམ་གྲོང་བརྡལ། | tshwa 'dam grong brdal | ᠴᠠᠢᠳᠠᠮ ᠪᠠᠯᠭᠠᠰᠤ | Цайдам балгас | 632857100 |
| Xitieshan Town | 锡铁山镇 | Xītiěshān Zhèn | ཞི་ཐོའི་རི་གྲོང་རྡལ། | zhi tho'i ri grong rdal | ᠬᠣᠷᠭᠣᠯᠵᠢᠨ ᠠᠭᠤᠯᠠ ᠪᠠᠯᠭᠠᠰᠤ | Хорголжин уул балгас | 632857101 |
Geography and climate
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 an
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 (1991–2020 normals, extremes 1971–2010) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °C (°F) | −3.2 (26.2) |
0.8 (33.4) |
5.6 (42.1) |
11.7 (53.1) |
16.2 (61.2) |
20.2 (68.4) |
22.9 (73.2) |
22.4 (72.3) |
17.5 (63.5) |
10.3 (50.5) |
3.5 (38.3) |
−1.8 (28.8) |
10.5 (50.9) |
| Daily mean °C (°F) | −12.2 (10.0) |
−7.6 (18.3) |
−2.2 (28.0) |
4.1 (39.4) |
9.5 (49.1) |
13.9 (57.0) |
16.6 (61.9) |
15.7 (60.3) |
10.4 (50.7) |
2.3 (36.1) |
−5.0 (23.0) |
−10.7 (12.7) |
2.9 (37.2) |
| Mean daily minimum °C (°F) | −19.8 (−3.6) |
−15.3 (4.5) |
−9.7 (14.5) |
−3.6 (25.5) |
2.0 (35.6) |
7.3 (45.1) |
10.3 (50.5) |
9.2 (48.6) |
3.7 (38.7) |
−5.0 (23.0) |
−12.1 (10.2) |
−17.8 (0.0) |
−4.2 (24.4) |
| Average precipitation mm (inches) | 2.6 (0.10) |
1.8 (0.07) |
3.5 (0.14) |
2.5 (0.10) |
10.3 (0.41) |
23.8 (0.94) |
27.5 (1.08) |
14.2 (0.56) |
8.1 (0.32) |
1.8 (0.07) |
1.4 (0.06) |
1.3 (0.05) |
98.8 (3.9) |
| Average snowy days | 3.5 | 2.6 | 2.8 | 2.1 | 2.0 | 0.2 | 0.2 | 0.1 | 0.2 | 1.5 | 1.8 | 2.7 | 19.7 |
| Average relative humidity (%)
|
43 | 34 | 29 | 27 | 31 | 38 | 41 | 38 | 36 | 32 | 36 | 41 | 36 |
| Mean monthly sunshine hours | 231.8 | 227.1 | 271.3 | 293.1 | 309.7 | 285.2 | 283.0 | 283.7 | 265.5 | 280.1 | 242.0 | 228.5 | 3,201 |
| Percent possible sunshine | 75 | 74 | 72 | 74 | 70 | 65 | 64 | 68 | 72 | 82 | 81 | 77 | 73 |
| Source: China Meteorological Administration[3][4][5] | |||||||||||||
Economy
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 (锡铁山铅矿),[6] as well as a number of salt lakes where potash and related products are extracted.
Transportation
Qinghai–Tibet Railway are both located within Da Qaidam.[2]
References
- ^ "海西州第七次全国人口普查公报（第二号）——各市县、行委常住人口情况" (in Chinese). Government of Haixi Prefecture. 2021-07-02.
- ^ a b 大柴旦地方志. Da Qaidam People's Government. 2008-05-13. Archived from the original on 2013-04-10. Retrieved 2013-04-03.
- ^ 中国气象数据网 – WeatherBk Data (in Simplified Chinese). China Meteorological Administration. Retrieved 27 September 2023.
- ^ 中国气象数据网 (in Simplified Chinese). China Meteorological Administration. Retrieved 27 September 2023.
- ^ 中国地面国际交换站气候标准值月值数据集（1971－2000年）. China Meteorological Administration. Archived from the original on 2013-09-21. Retrieved 2010-05-25.
- ^ At 37°19′00″N 95°34′00″E / 37.31667°N 95.56667°E.