Da'an River

Da'an River
Map showing the mouth of Da'an River
Da'an River in Taiwan
Country Taiwan
Physical characteristics
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
Length 95.76 km (59.50 mi)
Discharge
  • Maximum rate:
    13,840 m3/s (489,000 cu ft/s)
Basin features
Basin size 758.47 km2 (292.85 sq mi)

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

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. Archived from the original on 29 October 2015. 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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