| 基于FloodArea模型的新疆尼勒克县暴雨山洪临界雨量的确定 |
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| 引用本文： | 吴秀兰,江远安,余行杰,张国栋.基于FloodArea模型的新疆尼勒克县暴雨山洪临界雨量的确定[J].水土保持通报,2018,38(1):160-164. |
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| 作者姓名： | 吴秀兰 江远安 余行杰 张国栋 |
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| 作者单位： | 新疆维吾尔自治区气候中心, 新疆 乌鲁木齐 830002,新疆维吾尔自治区气候中心, 新疆 乌鲁木齐 830002,新疆维吾尔自治区气候中心, 新疆 乌鲁木齐 830002,新疆尼勒克县气象局, 新疆 伊犁 835000 |
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| 基金项目： | 中国气象局项目“山洪地质灾害防治气象保障工程：山洪灾害风险区划和影响预评估能力建设” |
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| 摘 要： | 目的]对尼勒克县科蒙乡吉林台苏河流域2016年6月17日发生的特大山洪过程进行模拟并结合实地考察淹没水深对模拟结果进行验证,进而确定其山洪致灾临界雨量。方法]以新疆尼勒克县典型山洪沟为研究对象,基于FloodArea淹没模型,利用流域内气象站降水资料、高程数据及相关基础地理信息数据,选取山洪预警点并分析预警点处不同累计时效的面雨量与模拟洪水过程线的相关关系。结果]该流域洪水的淹没水深与对应累计9h面雨量相关性最高,确定了预警点处累计9h的4级风险等级对应的致灾临界值分别为12.80mm(4级),25.78mm(3级),45.24mm(2级),64.71mm(1级)。结论]淹没模型FloodArea能够较为准确地模拟出研究区暴雨山洪个例淹没过程,根据其模拟结果能够反演出不同风险等级条件下该流域的山洪致灾临界面雨量。
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| 关 键 词： | 山洪 临界雨量 FloodArea模型 新疆尼勒克县 |
| 收稿时间： | 2017/6/15 0:00:00 |
| 修稿时间： | 2017/8/15 0:00:00 |
Determining Critical Rainfall for Flash Flood Based on FloodArea Model in Nileke County of Xinjiang Wei Autonomous Region |
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| WU Xiulan,JIANG Yuan,YU Xingjie and ZHANG Guodong.Determining Critical Rainfall for Flash Flood Based on FloodArea Model in Nileke County of Xinjiang Wei Autonomous Region[J].Bulletin of Soil and Water Conservation,2018,38(1):160-164. |
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| Authors: | WU Xiulan JIANG Yuan YU Xingjie and ZHANG Guodong |
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| Institution: | Climate Center of Xinjiang Uygur Autonomous Region, Urumqi, Xijiang 830002, China,Climate Center of Xinjiang Uygur Autonomous Region, Urumqi, Xijiang 830002, China,Climate Center of Xinjiang Uygur Autonomous Region, Urumqi, Xijiang 830002, China and Meteorological Bureau of Nileke County, Xinjiang, Yili, Xijiang 835000, China |
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| Abstract: | Objective] To simulate and verify a flash flood process on June 17, 2016 in Nileke County of Xinjiang Uygur Autonomous Region by a FloodArea model, in order to determine the critical rainfall for flash flood.Methods] A typical flash flood ditch was taken as the research object. Based on FloodArea model and using meteorological data, digital elevation model data and basic geographic information data in the flash flood ditch of Kemeng Township Nileke County, the correlations between the area rainfall with different cumulative aging and the simulated flood process line was analyzed, and the best set of correlations was used to construct the formula.Results] It was found that the highest correlation occurred between the submerged depth of the basin and the corresponding 9 hour surface rainfall. The critical rainfall threshold at 4 levels of the 9 h cumulative rainfall was 12.80(forth level), 25.78(third level), 45.24(second level) and 64.71(first level) mm, respectively.Conclusion] The floodArea model can well simulate the flood process in the study region, and the rainfall at different risk levels of the flash flood can be reflected. |
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| Keywords: | flash flood critical rainfall FloodArea model Nilka County of Xinjiang Wei Autonomous Region |
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