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Sanmenxia

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Sanmenxia

Sanmenxia
三门峡市
Prefecture-level city
Sanmenxia Dam
Sanmenxia Dam
Location of Sanmenxia City jurisdiction in Henan
Location of Sanmenxia City jurisdiction in Henan
Sanmenxia is located in China
Sanmenxia
Sanmenxia
Location in China
Coordinates:
Country People's Republic of China
Province Henan
Area
 • Prefecture-level city 10,475 km2 (4,044 sq mi)
 • Urban 164 km2 (63 sq mi)
 • Metro 1,315 km2 (508 sq mi)
Elevation 376 m (1,234 ft)
Population (2010 census)
 • Prefecture-level city 2,233,872
 • Density 210/km2 (550/sq mi)
 • Urban 284,312
 • Urban density 1,700/km2 (4,500/sq mi)
 • Metro 548,437
 • Metro density 420/km2 (1,100/sq mi)
Time zone China Standard (UTC+8)
Postal Code 472000
Area code(s) (0)398
GDP 70.6 billion RMB (10.8 billion USD)[1]
Major Ethnicities Han
County-level divisions 6
License plate prefixes 豫M
Website http://www.smx.gov.cn

Sanmenxia (simplified Chinese: 三门峡; traditional Chinese: 三門峽; pinyin: Sānménxiá; Postal map spelling: Sanmenhsia) is a prefecture-level city in western Henan province, People's Republic of China. The westernmost prefecture-level city in Henan, Sanmenxia borders Luoyang to the east, Nanyang to the southeast, the province of Shaanxi to the west and the province of Shanxi to the north. The city lies on the south side of the Yellow River at the point where the river cuts through the Loess Plateau on its way to the North China Plain.

Its home to 2,233,872 inhabitants at the 2010 census whom 548,437 live in the built up area made of Hubin urban district and Pinglu county in Zuncheng, now within the agglomeration

Names and History

The city's name in Chinese (三门峡) means "The Gorge of Three Gateways" and is derived from two islands that split the Yellow River into three parts.

According to Chinese mythology, men" or gates were then named "The Gateway of Man" (人门), "The Gateway of Gods" (神门) and "The Gateway of Devils" (鬼门).

With the construction of the Sanmenxia Dam in the late 1950s, the ancient passes were flooded.

During the Western Zhou Dynasty, Sanmenxia was part of the territory of the State of Western Guo, ruled by relatives of the ruling Ji family of Zhou. Guo moved its capital from modern day Baoji to Shangyang (上阳), next to Sanmenxia. Later, this territory was annexed the State of Jin.

Archaeological finds near Sanmenxia between 1956 and 1991 revealed mass chariot graves and bronzeware of Western Guo State rulers.

Geography and climate

Sanmenxia is located in western Henan on the southern (right) bank of the Yellow River, and is surrounded on three sides by mountains, with elevations generally increasing from northeast to southwest. Most of the prefecture is at an altitude of 300 to 1,500 metres (980 to 4,920 ft), although the highest peak in the province, at 2,413.8 metres (7,919 ft), is located in Lingbao. The prefecture is at the intersection of Henan, Shanxi, and Shaanxi provinces, bordering Luoyang to the east, Nanyang to the south, Weinan (Shaanxi) to the west, and Yuncheng (Shanxi) to the north across the Yellow River.

Sanmenxia has a mostly dry, monsoon-influenced continental climate with four seasons. Winters are moderately cold and very dry, while summers are hot and humid. Monthly daily average temperatures range from −0.3 °C (31.5 °F) in January to 26.4 °C (79.5 °F) in July, and the annual mean is 13.9 °C (57.0 °F). More than half of the annual precipitation falls from July to September. There are between 184 and 218 frost-free days per annum. In the Köppen system, the city is in the transition zone between a humid subtropical climate (Köppen Cwa) and humid continental climate (Köppen Dwa), and receives barely enough precipitation to avoid being semi-arid (Köppen BSk).[2]

Climate data for Sanmenxia (1971−2000)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) 4.6
(40.3)
7.9
(46.2)
13.5
(56.3)
21.3
(70.3)
26.8
(80.2)
30.9
(87.6)
31.6
(88.9)
30.3
(86.5)
25.5
(77.9)
20.0
(68)
12.5
(54.5)
6.3
(43.3)
19.3
(66.7)
Average low °C (°F) −4.1
(24.6)
−1.2
(29.8)
3.8
(38.8)
10.3
(50.5)
15.2
(59.4)
19.6
(67.3)
22.4
(72.3)
21.5
(70.7)
16.3
(61.3)
10.1
(50.2)
3.3
(37.9)
−2.4
(27.7)
9.6
(49.2)
Precipitation mm (inches) 5.7
(0.224)
7.4
(0.291)
22.1
(0.87)
38.7
(1.524)
51.8
(2.039)
65.7
(2.587)
112.6
(4.433)
95.4
(3.756)
84.0
(3.307)
50.1
(1.972)
20.1
(0.791)
5.4
(0.213)
559.0
(22.008)
Avg. precipitation days (≥ 0.1 mm) 3.3 3.6 5.7 7.1 7.7 8.9 10.5 10.1 9.4 8.3 5.4 2.8 82.8
Source: Weather China

Administration

The prefecture-level city of Sanmenxia administers one district, two county-level cities and three counties.

Transportation

Sanmenxia Railway Station

References

  1. ^ Exchange rate as of 28 May 2011.
  2. ^ Peel, M. C. and Finlayson, B. L. and McMahon, T. A. (2007). "Updated world map of the Köppen-Geiger climate classification". Hydrol. Earth Syst. Sci. 11: 1633-1644. ISSN 1027-5606.

External links

  • Government website of Sanmenxia (simplified Chinese)
  • City map (in simplified Chinese)
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