1980—2015年泊头市水面蒸发量变化特征分析

Analysis on Change Characteristics of Evaporation from Water Surface in Botou City from 1980 to 2015

利用1980—2015年捷地气象站水面蒸发资料,分析泊头市蒸发量的年内分配规律和年际变化特征以及干旱情况。结果表明,泊头市6月蒸发量最大,1月蒸发量最小,蒸发量年际变化不大;干旱指数为1.96,属于半湿润区。

Based on the evaporation data of Jiedi Meteorological Station from 1980 to 2015,the seasonal and annual change characteristics of evaporation from water surface and the drought condition of Botou City were analyzed.The results showed that,the maximum evaporation occurred in June and the minimum evaporation occurred in January,the evaporation changed slightly year by year. The drought index of Botou City was 1.96,so Botou City belonged to semi-humid region.