摘要
以辽宁省2009年夏季的干旱情况为例,利用多时相、多光谱的MODIS数据信息,结合地面实测气象信息与水文信息对旱情监测进行了研究,根据具体区域的实际情况,动态选择遥感指数及模型参数,实现了利用遥感数据对大范围区域的动态干旱监测。
The multi-temporal and multispectral MODIS data,combined with the meteorological information and hydrographic information,were used to study drought monitoring.In addition,the weights of remote sensing index and precipitation index are dynamically generated and measured using the relativity to relative soil moisture.By comparing the model with the actual situation,we found that the model can be used for large-scale drought monitoring in China.
出处
《测绘信息与工程》
2010年第4期20-22,共3页
Journal of Geomatics
基金
国家"863计划"资助项目(2006AA01A126)
