摘要
卫星技术的进步和广泛应用为提高监测降雨的准确性和时效性提供了可能性。利用HEC-HMS模型,将TRMM RT卫星降雨数据应用到洪水模拟预报中。结果表明,TRMM RT实时降雨资料具有时空连续性好等优点,总体上降水具有一定监测精度,但目前直接采用其开展洪水模拟还无法满足预报精度要求。采用降雨分级校正方法有效地降低了实时卫星降雨监测误差,显著提高洪水模拟精度。未来还需进一步提高卫星降雨的实时监测能力,充分利用站点和卫星遥感等多源降雨数据,提高洪水模拟预测精度。
The progress and extensive application of satellite technology provide the possibility of improving the accuracy and timeliness of rainfall monitoring. In this paper,by using the HEC-HMS model,the TRMM RT satellite rainfall data is applied to flood simulation prediction. The results show that the real-time rainfall data of TRMM RT has the advantages of good temporal and spatial continuity,and the precipitation in general has a certain monitoring accuracy,but at present the direct carrying out of flood simulation cannot meet the prediction accuracy requirements. In this paper,the rainfall classification correction method is used to effectively reduce the real-time satellite rainfall monitoring error and significantly improve the flood simulation accuracy. In the future,it is necessary to further improve the real-time monitoring ability of satellite rainfall,make full use of multi-source rainfall data such as site and satellite remote sensing to improve the accuracy of flood simulation prediction.
作者
闵心怡
杨传国
程雨春
李莹
MIN Xin yi;YANG Chuan guo;CHENG Yu chun;LI Ying(Hydrology and Water Resources College, Hohai University, Nanjing 210098, China;National Climate Center, China Meteorological Administration, Beijing 100081, China)
出处
《中国农村水利水电》
北大核心
2019年第6期1-5,共5页
China Rural Water and Hydropower
基金
国家重点研发计划项目(2016YFC0402706)
国家自然科学基金项目(414710106)
国家重点实验室自主研究项目(20185044012)
中央高校业务经费项目(2018B55114)
关键词
卫星实时降雨
洪水模拟
HEC-HMS模型
降雨分级校正
satellite real-time rainfall
flood simulation
HEC-HMS model
precipitation classification correction
