The Monitoring Analysis for the Drought in China by Using an Improved MPI Method

• 作 者: MAO Ke-biao MA Ying XIA Lang T
• 机 构: KeyLaboratoryofAgri-Informatics,CenterforLandResourceResearchinNorthwestChina,A-WorldConsulting,Stat
• 出 处: 农业科学学报：英文版
• 发表日期: 2012年6期
• 关键词: MPI方法 中国西南地区 监测分析 干旱 地面测量数据 微波成像仪 地面观测站 地表类型 drought soil moisture climate cha
• 基金项目: Acknowledgements The authors thank the National Aeronautics and Space Administration （NASA） for providing AMSR-E data, and the China National Meteorological Administration for pro- viding meteorology

MPI (microwave polarization index) method can use different frequencies at vertical polarization to retrieve soil moisture from TMI (tropical microwave imager) data, which is mainly suitable for bare soil. This paper makes an improvement for MPI method wh