金马河、江安河流域降雨与径流关系研究

Study on the Relationship between Rainfall and Runoff in Jinma River and Jiang’an River Basins

摘要: 利用2018~2020年5~9月金马河、江安河流域小时降雨数据和径流数据，分析了金马河、江安河流域的面雨量特征及其与径流的关系。研究表明：1) 江安河径流及径流的日变化和面雨量的同期相关性最好，其次与2天前的面雨量也显著相关；2) 金马河径流和2天前面雨量的相关性最好，但径流日变化与面雨量日变化达不到显著相关，可能是受人工调节的影响；3) 提前7小时的面雨量与径流显著相关，提前16小时的累积面雨量也与径流显著相关。

Abstract: Based on the hourly precipitation data and corresponding runoff data of Jinma River and Jiang’an River basins from May to September during 2018~2020, the area rainfall characteristics and its relationship between runoff of Jinma River and Jiang’an River basins were analyzed. The study showed that: 1) The runoff and its daily variation of the Jiang’an River were significantly correlated with area rainfall, followed by area rainfall two days ago. 2) The correlation between the runoff of Jinma River and area rainfall two days ago was the best. But there is no significant correlation between the daily variation of the run off and area rainfall, which may be affected by artificial regulation. 3) The area rainfall 7 hours in advance was significantly correlated with runoff, and the accumulated area rainfall 16 hours ago was also significantly correlated with runoff.