This paper analyzed the present situation and existing problems of ground information collection and sharing of weather modification operation, and sorted out the functional requirements of automatic collection system of weather modification operation parameters according to the performance characteristics of weather modification operation equipment and the technical requirements of operation information collection. This paper also designed and implemented the software and hardware system of ground operation information acquisition based on sensor technology, and completed the field test and business trial. Data analysis showed that the system ran stably, the precision of operational azimuth acquisition was ±5 °, elevation angle acquisition accuracy was ±3 °, the accuracy of quantity acquisition was 100%, the accuracy of data transmission was 100%, and the accuracy of all kinds of sensors met the needs of business assessment. The application and popularization of this system could effectively improve the time-effectiveness of ground information acquisition for weather modification operations, and help to fully grasp the dynamics of ground operations in the region,and improve the informationization and standardization management ability of weather modification operations.

The method for drought monitoring by remote sensing and monitoring flow were introduced in the paper，which can transfer
NOAA／AVHRR data received from DVBS system to Erads software where geographical correction and image mosaic can be done，and
drought monitoring model can be made and Inn．Drought occul"l~d in four provinces ofNorthwest China in the last ten—day of July，
2006 was monitored by using this method and work flow．an d the results were in agreement with observations of soil moisture in this area．It shows if proper drought monitor model is chosen，the drought magnitude can be monitored by this method and work flow．

The method for drought monitoring by remote sensing and monitoring flow were introduced in the paper，which can transfer NOAA／AVHRR data received from DVBS system to Erads software where geographical correction and image mosaic can be done，and drought monitoring model can be made and Inn．Drought occul"l~d in four provinces ofNorthwest China in the last ten—day of July，2006 was monitored by using this method and work flow．an d the results were in agreement with observations of soil moisture in this area．It shows if proper drought monitor model is chosen，the drought magnitude can be monitored by this method and work flow．