Haiyan County, Qinghai

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.

Haiyan County
海晏县 · ཧའེ་ཡན་རྫོང་།
Town of Xihai
Town of Xihai
Location of Haiyan County (red) within Haibei Prefecture (yellow) and Qinghai province
Location of Haiyan County (red) within Haibei Prefecture (yellow) and Qinghai province
Haiyan is located in Qinghai
Haiyan
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
CountryChina
ProvinceQinghai
Autonomous prefectureHaibei
County seatSanjiaocheng Town
Area
 • Total
4,443.1 km2 (1,715.5 sq mi)
Population
 (2020)[1]
 • Total
37,729
 • Density8.5/km2 (22/sq mi)
Time zoneUTC+8 (China Standard)
Websitewww.haiyanxian.gov.cn
Haiyan County, Qinghai
Chinese name
Simplified Chinese海晏县
Traditional Chinese海晏縣
Transcriptions
Standard Mandarin
Hanyu PinyinHǎiyàn Xiàn
Tibetan name
Tibetanཧའེ་ཡན་རྫོང་།
Transcriptions
Wylieha'e yan rdzong
Tibetan PinyinHa'êyan Zong
Mongolian name
Mongolian scriptᠬᠠᠢᠶᠠᠨ ᠰᠢᠶᠠᠨ

History

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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

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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
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

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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
Percent possible sunshine 76 74 69 65 58 54 54 57 56 67 78 78 66
Source: China Meteorological Administration[3][4]

See also

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References

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  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.