1雨情2005年降水特点为:降雨时空分布极不均匀。从时间上来说,降水主要集中在汛期,汛期降水量占全年降水量的80%;从空间分布来说,山区降水多于平原地区。全市范围的暴雨天气很少,仅2次较大降雨过程,但局部暴雨天气频繁,特别是北部山区多突发性暴雨,此类暴雨降水历时短,强度大,? 1 Rainfall Precipitation in 2005 was characterized by extremely uneven distribution of rainfall and time. In terms of time, precipitation is mainly concentrated in the flood season, precipitation in the flood season accounts for 80% of the annual precipitation; from the spatial distribution, the mountainous area rainfall more than the plain. There are only a few rainstorms in the whole city, with only two heavy rains, but frequent heavy rains, especially sudden rains in the northern mountains, which have a short duration and high intensity of rainfall.