The variation pattern of precipitation affects the planning and utilization of regional water resources.Therefore,in order to study the characteristics and trends of precipitation in Yanji city,this article selects precipitation data from 1992 to 2019,and uses Mann-Kendall test,linear regression analysis,moving average method,anomaly and cumulative anomaly method to conduct research and analysis from different perspectives.The results indicate that the overall precipitation in Yanji city is on the rise.The precipitation in spring and summer has significantly increased,with abundant precipitation.In autumn,it shows a downward trend,while in winter,the overall trend is relatively stable with relatively less precipitation.This article can provide reference significance for precipitation prediction and flood control and drought resistance in Yanji city.
precipitationMann-Kendall test methodmoving average methodYanji
万方数据
维普
