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 | |
|---|---|
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  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 km2 (292.85 sq mi) |
| Discharge | |
| • maximum | 13,840 m3/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
References
- "GeoNames Search". Geographic Names Database. National Geospatial-Intelligence Agency, USA. Retrieved 10 June 2016.
- "Da'an River" (in Chinese). Water Resources Agency, Ministry of Economic Affairs. Archived from the original on 29 October 2015. Retrieved 10 June 2016.
- Jonathan Webb (18 August 2014). "Taiwan's 'vanishing canyon' has 50 years left". BBC News. Retrieved 10 June 2016.
- 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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