摘要
中分辨率成像光谱仪(MODIS:Moderate Resolution Imaging Spectroradiometer)是美国1999年开始的第二阶段对地观测系统计划(EOS:Earth Observation System)中最有特色的仪器之一。与AVHRR相比,MODIS数据具有36个波段和高分辨率(2501 000 m),加上数据以每天上、下午的频率采集和免费接收的数据获取政策,使得MODIS数据成为我国地学研究不可多得的数据资源。在概要介绍了MODIS应用于作物监测的原理和主要指标后,总结了我国在近几年利用该数据源进行作物监测(包括长势监测、面积监测、作物估产和灾害监测等)研究方面的进展。提出应用MODIS进行作物监测需要加强研究的几个方面。
MO apparatus at t AVHRR, the can be obtaine DIS （Moderate Resolution Imaging Spectroradiometer） is one of the most distinctive he second stage of EOS （Earth Observation System） plan from 1999. Compared with the data of MODIS has 36 bands and higher resolution （250-1000 m） and the semidiurnal data d free according to the policy of NASA, so it is playing a significant role in geography and ecological science studies. This paper firstly introduces the theory and leading indices in crop monitoring with MODIS data in brief. Then it analyses application status and prospects of crop monitoring with MODIS data recently in China, such as the monitoring of crop growth, the calculation of crop area, the estimation of yield and the monitoring of meteorologic disaster and crop pest. At last, several aspects in the studies mentioned above that should be enhanced were evaluated and explored.
出处
《遥感技术与应用》
CSCD
2005年第5期531-536,共6页
Remote Sensing Technology and Application
