 | This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Haiyan County, Qinghai" – news ·newspapers ·books ·scholar ·JSTOR(May 2020) (Learn how and when to remove this message) |
Haiyan County 海晏县 ·ཧའེ་ཡན་རྫོང་། | |
|---|---|
 Town of Xihai | |
.png) Location of Haiyan County (red) within Haibei Prefecture (yellow) and Qinghai province | |
  Haiyan Location of the seat in Qinghai | |
| Coordinates:36°53′48″N100°59′40″E / 36.8966°N 100.9944°E /36.8966; 100.9944 | |
| Country | China |
| Province | Qinghai |
| Autonomous prefecture | Haibei |
| County seat | Sanjiaocheng Town |
| Area | |
• Total | 4,443.1 km2 (1,715.5 sq mi) |
| Population (2020)[1] | |
• Total | 37,729 |
| • Density | 8.4916/km2 (21.993/sq mi) |
| Time zone | UTC+8 (China Standard) |
| Website | www |
| Haiyan County, Qinghai | |||||||
|---|---|---|---|---|---|---|---|
| Chinese name | |||||||
| Simplified Chinese | 海晏县 | ||||||
| Traditional Chinese | 海晏縣 | ||||||
| |||||||
| Tibetan name | |||||||
| Tibetan | ཧའེ་ཡན་རྫོང་། | ||||||
| |||||||
| Mongolian name | |||||||
| Mongolian script | ᠬᠠᠢᠶᠠᠨ ᠰᠢᠶᠠᠨ | ||||||
Haiyan County (Chinese:海晏县;Tibetan:ཧའེ་ཡན་རྫོང་།) is a county ofQinghai Province, China, located on the northeast shore ofQinghai Lake. It is under the administration ofHaibei Tibetan Autonomous Prefecture.
A major nuclear research facility, Plant 221 (221厂), better known asChina's First Research Center for Nuclear Weapons (中国第一个核武器研制基地), was established in 1958 at the location called Jinyintan (金银滩) in Haiyan County.[2] The site has been on theList of Major National Historical and Cultural Sites in Qinghai since 2001.
Haiyan County is made up of 2towns, 3townships, and 1ethnic township:
| Name | Simplified Chinese | Hanyu Pinyin | Tibetan | Wylie | Administrative division code | Notes |
|---|---|---|---|---|---|---|
| Towns | ||||||
| Sanjiaocheng Town (Karsursum Town) | 三角城镇 | Sānjiǎochéng Zhèn | མཁར་ཟུར་གསུམ་གྲོང་རྡལ། | mkhar zur gsum grong rdal | 632223100 | |
| Xihai Town (Rubco Town) | 西海镇 | Xīhǎi Zhèn | རུབ་མཚོ་གྲོང་རྡལ། | rub mtsho grong rdal | 632223101 | |
| Townships | ||||||
| Jintan Township (Sêrtang Township) | 金滩乡 | Jīntān Xiāng | གསེར་ཐང་ཞང་། | gser thang zhang | 632223200 | |
| Qinghaihu Township (Co'ngoinbo Township) | 青海湖乡 | Qīnghǎihú Xiāng | མཚོ་སྔོན་པོ་ཞང་། | mtsho sngon po zhang | 632223202 | |
| Ganjig Township (Wa'gyog Township, Ganzihe Township) | 甘子河乡 | Gānzǐhé Xiāng | ཝ་མགྱོགས་ཞང་། | wa mgyogs zhang | 632223203 | |
| Ethnic township | ||||||
| Haljin Mongol Ethnic Township (Bai'gyain Township) | 哈勒景蒙古族乡 | Hālèjǐng Ménggǔzú Xiāng | དཔལ་རྒྱན་ཞང་། | dpal rgyan zhang | 632223201 | (Mongolian) ᠬᠠᠯᠵᠢᠨ ᠮᠣᠩᠭᠣᠯ ᠦᠨᠳᠦᠰᠦᠲᠡᠨ ᠦ ᠰᠤᠮᠤᠨ |
| Climate data for Haiyan, elevation 3,010 m (9,880 ft), (1991–2020 normals, extremes 1991–present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 9.1 (48.4) | 14.1 (57.4) | 20.8 (69.4) | 27.2 (81.0) | 24.6 (76.3) | 25.1 (77.2) | 30.5 (86.9) | 27.9 (82.2) | 24.2 (75.6) | 22.0 (71.6) | 15.2 (59.4) | 9.8 (49.6) | 30.5 (86.9) |
| Mean daily maximum °C (°F) | −2.0 (28.4) | 1.6 (34.9) | 6.2 (43.2) | 11.3 (52.3) | 14.8 (58.6) | 17.6 (63.7) | 19.6 (67.3) | 19.1 (66.4) | 15.1 (59.2) | 10.0 (50.0) | 4.5 (40.1) | −0.2 (31.6) | 9.8 (49.6) |
| Daily mean °C (°F) | −12.6 (9.3) | −8.4 (16.9) | −2.8 (27.0) | 3.2 (37.8) | 7.3 (45.1) | 10.8 (51.4) | 12.9 (55.2) | 12.1 (53.8) | 8.0 (46.4) | 1.7 (35.1) | −5.6 (21.9) | −11.1 (12.0) | 1.3 (34.3) |
| Mean daily minimum °C (°F) | −21.2 (−6.2) | −16.9 (1.6) | −10.3 (13.5) | −4 (25) | 0.5 (32.9) | 4.4 (39.9) | 6.7 (44.1) | 6.3 (43.3) | 2.7 (36.9) | −4.4 (24.1) | −12.9 (8.8) | −19.4 (−2.9) | −5.7 (21.8) |
| Record low °C (°F) | −31.1 (−24.0) | −29.6 (−21.3) | −24.2 (−11.6) | −16.7 (1.9) | −8.6 (16.5) | −3.7 (25.3) | −1.4 (29.5) | −3.3 (26.1) | −7.2 (19.0) | −18.0 (−0.4) | −27.8 (−18.0) | −33.7 (−28.7) | −33.7 (−28.7) |
| Averageprecipitation mm (inches) | 1.1 (0.04) | 1.3 (0.05) | 6.3 (0.25) | 18.7 (0.74) | 44.3 (1.74) | 67.7 (2.67) | 91.3 (3.59) | 93.2 (3.67) | 65.3 (2.57) | 17.7 (0.70) | 5.1 (0.20) | 1.8 (0.07) | 413.8 (16.29) |
| Average precipitation days(≥ 0.1 mm) | 2.5 | 2.4 | 5.1 | 6.9 | 12.3 | 15.4 | 16.4 | 15.8 | 15.2 | 8.5 | 3.6 | 2.7 | 106.8 |
| Average snowy days | 4.4 | 5.3 | 7.9 | 7.3 | 5.0 | 0.6 | 0.2 | 0.2 | 0.7 | 6.9 | 5.1 | 4.5 | 48.1 |
| Averagerelative humidity (%) | 53 | 50 | 50 | 53 | 59 | 65 | 71 | 74 | 74 | 67 | 60 | 57 | 61 |
| Mean monthlysunshine hours | 237.1 | 229.6 | 259.1 | 259.1 | 257.4 | 234.2 | 239.7 | 237.4 | 207.0 | 229.8 | 234.7 | 233.4 | 2,858.5 |
| Percentagepossible sunshine | 76 | 74 | 69 | 65 | 58 | 54 | 54 | 57 | 56 | 67 | 78 | 78 | 66 |
| Source:China Meteorological Administration[3][4] | |||||||||||||
| International | |
|---|---|
| National | |
| Other | |
