Dulan County (Mongolian: ᠳᠤᠯᠠᠭᠠᠨ ᠰᠢᠶᠠᠨ; Tibetan: ཏུའུ་ལན་རྫོང་; Chinese: 都兰县) is a county of east-central Qinghai province, China. It is under the administration of Haixi Mongol and Tibetan Autonomous Prefecture.
Climate
With an elevation of around 3,200 metres (10,000 ft), Dulan County has a cool semi-arid climate (Köppen BSk) that grades into a cool arid climate (BWk) north of the mountains. Winters are long, frigid and extremely dry whilst summers are warm in the south and very warm in the less elevated north. Average low temperatures are below freezing from early/mid October to mid/late April; however, due to the wide diurnal temperature variation, only December and January have an average high below freezing. With monthly percent possible sunshine ranging from 60% in July to 81% in November, the county seat is very sunny, receiving 3,092 hours of bright sunshine annually; relative humidity in all months is below 50% and for seven months is below 40%. The monthly 24-hour average temperature ranges from −9.6 °C (14.7 °F) in January to 15.2 °C (59.4 °F) in July, while the annual mean is 3.7 °C (38.7 °F). Over 70% of the annual precipitation of 229 millimetres or 9.02 inches is delivered from May to August.
| Climate data for Dulan County, elevation 3,189 m (10,463 ft), (1991–2020 normals, extremes 1971–2010) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 11.7 (53.1) |
15.9 (60.6) |
20.0 (68.0) |
27.1 (80.8) |
28.0 (82.4) |
28.9 (84.0) |
31.8 (89.2) |
32.2 (90.0) |
30.3 (86.5) |
23.3 (73.9) |
16.1 (61.0) |
11.5 (52.7) |
32.2 (90.0) |
| Mean daily maximum °C (°F) | −2.0 (28.4) |
1.6 (34.9) |
6.1 (43.0) |
12.0 (53.6) |
16.2 (61.2) |
19.4 (66.9) |
22.0 (71.6) |
21.8 (71.2) |
17.5 (63.5) |
10.6 (51.1) |
4.4 (39.9) |
−0.6 (30.9) |
10.8 (51.4) |
| Daily mean °C (°F) | −9.4 (15.1) |
−5.5 (22.1) |
−0.6 (30.9) |
5.1 (41.2) |
9.5 (49.1) |
13.0 (55.4) |
15.3 (59.5) |
14.8 (58.6) |
10.3 (50.5) |
3.3 (37.9) |
−3.1 (26.4) |
−8.1 (17.4) |
3.7 (38.7) |
| Mean daily minimum °C (°F) | −14.7 (5.5) |
−11 (12) |
−6.1 (21.0) |
−1.1 (30.0) |
3.0 (37.4) |
6.9 (44.4) |
9.4 (48.9) |
8.7 (47.7) |
4.5 (40.1) |
−2.0 (28.4) |
−8.0 (17.6) |
−13.2 (8.2) |
−2.0 (28.4) |
| Record low °C (°F) | −26.4 (−15.5) |
−22.2 (−8.0) |
−18.1 (−0.6) |
−12.6 (9.3) |
−6.7 (19.9) |
−1.3 (29.7) |
0.6 (33.1) |
0.2 (32.4) |
−4.8 (23.4) |
−12.6 (9.3) |
−18.8 (−1.8) |
−25.7 (−14.3) |
−26.4 (−15.5) |
| Average precipitation mm (inches) | 4.2 (0.17) |
5.8 (0.23) |
7.6 (0.30) |
9.1 (0.36) |
31.1 (1.22) |
51.7 (2.04) |
57.5 (2.26) |
29.2 (1.15) |
19.3 (0.76) |
5.9 (0.23) |
5.2 (0.20) |
2.5 (0.10) |
229.1 (9.02) |
| Average precipitation days (≥ 0.1 mm) | 4.3 | 3.8 | 4.5 | 3.9 | 7.4 | 10.6 | 11.4 | 8.6 | 6.1 | 2.8 | 2.6 | 3.2 | 69.2 |
| Average snowy days | 5.6 | 5.4 | 6.4 | 4.9 | 3.8 | 0.6 | 0.1 | 0 | 0.3 | 2.9 | 3.6 | 4.3 | 37.9 |
| Average relative humidity (%) | 41 | 36 | 33 | 30 | 37 | 48 | 51 | 47 | 45 | 37 | 37 | 38 | 40 |
| Mean monthly sunshine hours | 225.1 | 213.5 | 247.1 | 268.5 | 269.6 | 246.8 | 254.9 | 258.6 | 242.4 | 264.7 | 238.8 | 227.6 | 2,957.6 |
| Percentage possible sunshine | 72 | 69 | 66 | 68 | 62 | 57 | 58 | 62 | 66 | 77 | 79 | 76 | 68 |
| Source: China Meteorological Administration[2][3][4] | |||||||||||||
| Climate data for Nuomuhong, Dulan (1991–2020 normals) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °C (°F) | −0.5 (31.1) |
4.5 (40.1) |
9.8 (49.6) |
15.9 (60.6) |
20.5 (68.9) |
24.1 (75.4) |
26.5 (79.7) |
25.9 (78.6) |
21.5 (70.7) |
14.3 (57.7) |
6.5 (43.7) |
0.4 (32.7) |
14.1 (57.4) |
| Daily mean °C (°F) | −8.9 (16.0) |
−4.1 (24.6) |
1.6 (34.9) |
7.8 (46.0) |
12.6 (54.7) |
16.4 (61.5) |
18.5 (65.3) |
17.5 (63.5) |
12.9 (55.2) |
5.3 (41.5) |
−2.4 (27.7) |
−8.0 (17.6) |
5.8 (42.4) |
| Mean daily minimum °C (°F) | −15.4 (4.3) |
−11.1 (12.0) |
−5.6 (21.9) |
0.3 (32.5) |
5.2 (41.4) |
9.5 (49.1) |
11.8 (53.2) |
10.9 (51.6) |
6.4 (43.5) |
−1.5 (29.3) |
−8.9 (16.0) |
−14.4 (6.1) |
−1.1 (30.1) |
| Average precipitation mm (inches) | 1.1 (0.04) |
0.7 (0.03) |
0.8 (0.03) |
1.4 (0.06) |
7.5 (0.30) |
14.0 (0.55) |
12.8 (0.50) |
7.5 (0.30) |
4.9 (0.19) |
0.6 (0.02) |
0.3 (0.01) |
0.5 (0.02) |
52.1 (2.05) |
| Average precipitation days (≥ 0.1 mm) | 1.9 | 0.8 | 1.2 | 0.9 | 2.9 | 5.3 | 6.3 | 4.5 | 3.2 | 0.7 | 0.7 | 0.8 | 29.2 |
| Average snowy days | 2.8 | 1.9 | 2.6 | 1.3 | 0.7 | 0 | 0 | 0 | 0 | 0.6 | 1.4 | 1.3 | 12.6 |
| Average relative humidity (%) | 39 | 30 | 26 | 24 | 29 | 39 | 44 | 41 | 39 | 33 | 34 | 38 | 35 |
| Mean monthly sunshine hours | 223.8 | 220.3 | 264.6 | 284.0 | 288.3 | 262.7 | 267.3 | 264.7 | 244.4 | 259.3 | 243.9 | 227.1 | 3,050.4 |
| Percentage possible sunshine | 72 | 71 | 71 | 72 | 66 | 60 | 61 | 64 | 67 | 76 | 81 | 76 | 70 |
| Source: China Meteorological Administration[5][6] | |||||||||||||
Administrative divisions
Dulan County is divided into 4 towns and 4 townships.
| Name | Simplified Chinese | Hanyu Pinyin | Tibetan | Wylie | Mongolian (traditional script) | Mongolian (Cyrillic) | Administrative division code |
|---|---|---|---|---|---|---|---|
| Towns | |||||||
| Qagan Us Town (Chahanwusu, Cahainwusu) |
察汉乌苏镇 | Cháhànwūsū Zhèn | ཚ་ཧན་བུའུ་སུའུ་གྲོང་རྡལ། | tsha han bu’u su’u grong rdal | ᠴᠠᠭᠠᠨ᠋ᠤᠰᠤᠨ ᠪᠠᠯᠭᠠᠰᠤ | Цагааносон балгас | 632822100 |
| Xangdê Town (Xiangride, Dorboljin) |
香日德镇 | Xiāngrìdé Zhèn | ཤངས་སྡེ་གྲོང་རྡལ། | shangs sde grong rdal | ᠳᠥᠷᠪᠡᠯᠵᠢᠨ ᠪᠠᠯᠭᠠᠰᠤ | Дөрвөлжин балгас | 632822101 |
| Xarag Town (Xaruha, Xarrika, Xiariha) |
夏日哈镇 | Xiàrìhā Zhèn | ཤ་རུ་ཧ་གྲོང་རྡལ། | sha ru ha grong rdal | 632822102 | ||
| Zongja Town (Juun, Zongjia) |
宗加镇 | Zōngjiā Zhèn | ཙོང་ཇ་གྲོང་རྡལ། | tsong ja grong rdal | ᠵᠡᠭᠦᠨ ᠪᠠᠯᠭᠠᠰᠤ | Зүүн балгас | 632822103 |
| Townships | |||||||
| Qukoi Township (Reshui) |
热水乡 | Rèshuǐ Xiāng | ཆུ་ཁོལ་ཞང་། | chu khol zhang | 632822200 | ||
| Xang Township (Xiangjia) |
香加乡 | Xiāngjiā Xiāng | ᠱᠠᠩ ᠰᠤᠮᠤ | Шан сум | 632822201 | ||
| Guru Township (Guri, Gugri, Gouli) |
沟里乡 | Gōulǐ Xiāng | རྒུ་རུ་ཞང་། | rgu ru zhang | 632822202 | ||
| Barun Township (Balung, Balong) |
巴隆乡 | Bālóng Xiāng | པ་ལུང་ཞང་། | pa lung zhang | ᠪᠠᠷᠠᠭᠤᠨ ᠰᠤᠮᠤ | Баруун сум | 632822203 |
Transport
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.
- ^ 中国气象数据网 – WeatherBk Data (in Simplified Chinese). China Meteorological Administration. Retrieved 27 August 2023.
- ^ 中国气象数据网 (in Simplified Chinese). China Meteorological Administration. Retrieved 27 August 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.
- ^ 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.
