Haiyan County, Qinghai

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County in Qinghai, China

Haiyan County

海晏县 · ཧའེ་ཡན་རྫོང་།

County

Town of Xihai

Location of Haiyan County (red) within Haibei Prefecture (yellow) and Qinghai province

Haiyan

Location of the seat in Qinghai

Coordinates: 36°53′48″N 100°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| 8.5/km2 (22/sq mi)
Time zone| UTC+8 (China Standard)
Website| www.haiyanxian.gov.cn
Haiyan County, Qinghai

Chinese name
Simplified Chinese| 海晏县
Traditional Chinese| 海晏縣
| Transcriptions

Standard Mandarin
Hanyu Pinyin| Hǎiyàn Xiàn
Tibetan name
Tibetan| ཧའེ་ཡན་རྫོང་།
| Transcriptions

Wylie| ha'e yan rdzong
Tibetan Pinyin| Ha'êyan Zong
Mongolian name
Mongolian script| ᠬᠠᠢᠶᠠᠨ ᠰᠢᠶᠠᠨ

Haiyan County (Chinese: 海晏县; Tibetan: ཧའེ་ཡན་རྫོང་།) is a county of Qinghai Province, China, located on the northeast shore of Qinghai Lake. It is under the administration of Haibei Tibetan Autonomous Prefecture.

## History

[edit]

A major nuclear research facility, Plant 221 (221厂), better known as China'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 the List of Major National Historical and Cultural Sites in Qinghai since 2001.

## Administrative divisions

[edit]

Haiyan County is made up of 2 towns, 3 townships, and 1 ethnic township:

Name  | Simplified Chinese  | Hanyu Pinyin  | Tibetan | Wylie | Administrative division code | Notes

|
|
|
|
|
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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

[edit]

Climate data for Haiyan, elevation 3,010 m (9,880 ft), (1991–2020 normals)

Month  | Jan  | Feb  | Mar  | Apr  | May  | Jun  | Jul  | Aug  | Sep  | Oct  | Nov  | Dec  | Year
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)
Average precipitation 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
Average relative humidity (%)  | 53  | 50  | 50  | 53  | 59  | 65  | 71  | 74  | 74  | 67  | 60  | 57  | 61
Mean monthly sunshine 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
Percentage possible sunshine | 76  | 74  | 69  | 65  | 58  | 54  | 54  | 57  | 56  | 67  | 78  | 78  | 66
Source: China Meteorological Administration[3][4]

## See also

[edit]

* List of administrative divisions of Qinghai

## References

[edit]

1. ^ "海北州第七次全国人口普查公报（第一、二、三、四、五、六号）" (in Chinese). Government of Haibei Prefecture. 2022-12-02.
2. ^ Where China Built Its Bomb, Dark Memories Haunt the Ruins, By CHRIS BUCKLEY and ADAM WU JAN. The New York Times, 20, 2018
3. ^ 中国气象数据网 – WeatherBk Data (in Simplified Chinese). China Meteorological Administration. Retrieved 27 September 2023.
4. ^ 中国气象数据网 (in Simplified Chinese). China Meteorological Administration. Retrieved 27 September 2023.

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* t
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County-level divisions of Qinghai Province

* Xining (capital)

Prefecture-level
cities|

| Xining|

* Chengzhong District
* Chengdong District
* Chengxi District
* Chengbei District
* Huangzhong District
* Datong County
* Huangyuan County

|

Haidong|

* Ledu District
* Ping'an District
* Minhe County
* Huzhu County
* Hualong County
* Xunhua County

Autonomous
prefectures|

| Haibei|

* Haiyan County
* Qilian County
* Gangca County
* Menyuan County

|

Huangnan|

* Tongren city
* Jainca County
* Zêkog County
* Henan County

Hainan|

* Gonghe County
* Tongde County
* Guide County
* Xinghai County
* Guinan County

Golog|

* Maqên County
* Banma County
* Gadê County
* Darlag County
* Jigzhi County
* Madoi County

Yushu|

* Yushu city
* Zadoi County
* Chindu County
* Zhidoi County
* Nangqên County
* Qumarlêb County

Haixi|

* Delingha city
* Golmud city
* Mangnai city
* Ulan County
* Dulan County
* Tianjun County
*     * Da Qaidam Administrative Zone 1

* 1 These are administrative zones, which are not standard units of local government, though they do function as such.

Authority control databases

International|

* VIAF

National|

* United States
* Israel

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