论文部分内容阅读
分析了彭州市境内位于不同海拔高度的 4个观测站的降水资料 ,结果表明 ,彭州市雨量充沛 ,但降水量的年际变化显著 ,雨季起、止时间和雨季长、短的年际变化很大 ,降水的时间分配极不均匀。因为这 4个站具有相同的气候背景 ,降水量的年、季、月变化呈现基本一致的规律和趋势 ,但因为海拔高度不同等气候背景的差异 ,4站的降水特点又显著不同。降水量随海拔高度的升高而增加 ,降水变幅和雨日也随海拔高度的升高而增加 ,大降水过程具有明显的局地性 ,不同海拔高度的旱、涝情况亦有差异 ,降水的空间分布表现出明显的立体性特征
The precipitation data of 4 stations located at different altitudes in Pengzhou City were analyzed. The results show that there is plenty of rainfall in Pengzhou City, but the interannual variation of precipitation is significant. The long-term and short-term changes of precipitation in rainy season are significant Large, precipitation time distribution is extremely uneven. Because the four stations have the same climate background, the annual, seasonal and monthly variations of precipitation show basically the same laws and trends. However, due to the difference of climatic background with different altitude, the precipitation characteristics of four stations are significantly different. Precipitation increased with altitude, precipitation amplitude and rainy days also increased with the elevation, the process of precipitation has obvious local, drought and waterlogging at different altitudes are also different, precipitation The spatial distribution shows obvious three-dimensional characteristics