Da'an River

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]

Da'an River
Da'an River in Taiwan
Native name	大安溪  (Chinese)
Location
Country	Taiwan
Physical characteristics
Source
• location	Xueshan Range: Dabajian Mountain
• coordinates	24°25′16.8″N 121°08′27.4″E
• elevation	3,488 m (11,444 ft)
Mouth
• location	Taiwan Strait
• coordinates	24.4072°N 120.5931°E
Length	95.76 km (59.50 mi)
Basin size	758.47 km^2 (292.85 sq mi)
Discharge
• maximum	13,840 m^3/s (489,000 cu ft/s)

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

• List of rivers in Taiwan

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.