Da'an River

Da'an River
Map showing the mouth of Da'an River
Da'an River in Taiwan
Country Taiwan
Basin
Main source Xueshan Range: Dabajian Mountain
3,488 m (11,444 ft)
River mouth Taiwan Strait
24°24′26″N 120°35′35″E / 24.4072°N 120.5931°E / 24.4072; 120.5931Coordinates: 24°24′26″N 120°35′35″E / 24.4072°N 120.5931°E / 24.4072; 120.5931
Basin size 758.47 km2 (292.85 sq mi)
Physical characteristics
Length 95.76 km (59.50 mi)
Discharge
  • Maximum rate:
    13,840 m3/s (489,000 cu ft/s)

The Da'an River (Chinese: 大安溪; pinyin: Dà'ān Xī) is a river in northwestern Taiwan. It flows through Miaoli County and Taichung City for 96 kilometres (60 mi). It reaches the Taiwan Strait between the Dajia District and Da'an District, Taichung.[1][2]

The Da'an River was affected by the "921 earthquake" in 1999, where a gorge was formed (called Da'an River Grand Canyon Chinese: 大安溪大峽谷). In some of the fastest erosion geologists have ever seen, the gorge is being eaten away from its upstream end at a rate of 17 meters per year. They expect the gorge to be erased after 50 years.[3][4]

Da'an River "Grand Canyon"

See also

Wikimedia Commons has media related to Da-an River.

References

  1. "GeoNames Search". Geographic Names Database. National Geospatial-Intelligence Agency, USA. Retrieved 10 June 2016.
  2. "Da'an River" (in Chinese). Water Resources Agency, Ministry of Economic Affairs. Retrieved 10 June 2016.
  3. Jonathan Webb (18 August 2014). "Taiwan's 'vanishing canyon' has 50 years left". BBC News. Retrieved 10 June 2016.
  4. Cook, Kristen L.; Turowski, Jens M.; Hovius, Niels (2014). "River gorge eradication by downstream sweep erosion". Nature Geoscience. 7 (9): 682–686. doi:10.1038/ngeo2224.


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