Forecast system for spring sandstorm climate trend in Ningxia;

The causes that total cloud amount from the two datasets(ISCCP D2 product and ground observation) over China have difference,and the quantitative results on spatial-distribution difference of total cloud amount and the trend of climate change,are helpful to further study on the cloud amount,radiation balance,and the promotion of climate models\' performances.

In order to take prevention measures of erosion timely,analysis on the temporal characteristics of rainfall erosivity of Datong City is conducted by using Richardson rainfall erosivity method,climate tendency coefficient,precipitation concentration index and cumulative percent analysis method.