The critical rainfall characteristics for torrents and debris flows in the Wenchuan earthquake stricken area
| العنوان: | The critical rainfall characteristics for torrents and debris flows in the Wenchuan earthquake stricken area |
|---|---|
| المؤلفون: | Huan Li, Cheng-lin Yang, Ningsheng Chen, David Han, Wei Zhou, Guisheng Hu |
| المصدر: | Journal of Mountain Science. 6:362-372 |
| بيانات النشر: | Springer Science and Business Media LLC, 2009. |
| سنة النشر: | 2009 |
| مصطلحات موضوعية: | Hydrology, Global and Planetary Change, geography, geography.geographical_feature_category, Landform, Geography, Planning and Development, Geology, Hazard management, Solid material, Debris, Debris flow, Vegetation cover, Contour line, Environmental science, Nature and Landscape Conservation, Earth-Surface Processes |
| الوصف: | Critical rainfall assessment is a very important tool for hazard management of torrents and debris flows in mountainous areas. The Wenchuan Earthquake 2008 caused huge casualties and property damages in the earthquake-stricken area, which also generated large quantities of loose solid materials and increased occurrence probabilities of debris flows. There is an urgent need to quantify the critical rainfall distribution in the area so that better hazard management could be planned and if real time rainfall forecast is available, torrent and debris flow early-warning could be issued in advance. This study is based on 49-year observations (1954-2003) of up to 678 torrent and debris flow events. Detailed contour maps of 1 hour and 24 hour critical rainfalls have been generated (Due to the data limitation, there was insufficient 10 minute critical rainfall to make its contour map). Generally, the contour maps from 1 hour and 24 hours have similar patterns. Three zones with low, medium and high critical rainfalls have been identified. The characteristics of the critical rainfall zones are linked with the local vegetation cover and land forms. Further studies and observations are needed to validate the finding and improve the contour maps. |
| تدمد: | 1993-0321 1672-6316 1954-2003 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::71446b4a6781c731f9c971ba842f6720Test https://doi.org/10.1007/s11629-009-1064-9Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........71446b4a6781c731f9c971ba842f6720 |
| قاعدة البيانات: | OpenAIRE |
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