利用MODIS数据反演气温监测夏季高温热害

[目的]研究利用MODIS数据反演气温来监测夏季水稻高温热害。[方法]介绍了一种新的反演我国东部地区白天气温的统计算法,并给出了一个监测2007年我国东部夏季水稻高温热害的例子。[结果]夏季在我国南部水稻的抽穗期期间,高温对水稻的产量起着关键性的影响。利用MODIS数据监测高温热害是减轻农业灾害的一个可行办法。[结论]该研究结果为我国夏季水稻高温热害的监测提供了方法。

Monitoring of Summer High Temperature by Using MODIS Data to Estimate Air Temperature

[Objective] This study was to monitor the hot damage of high temperature on rice in summer by using MODIS data to estimate air temperature.[Method] A new statistical algorithm was introduced for daytime air temperature(Ta) retrievals over east China by using the Moderate Resolution Imaging Spectroradiometer(MODIS) data,and the high temperature monitoring for rice in south China in 2007 summer was used to demonstrate.[Result] High temperature plays a key role in rice production during rice heading stage in summer in southern China.Using MODIS data to monitor the hot damage of high temperature is a feasible way to relieve agricultural disasters.[Conclusion] The result of this study provides a method to monitor hot damage of high temperature tn rice in summer of China.