“全球农情遥感速报系统(CropWatch)”新进展
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摘要
目前由中国科学院遥感应用研究所建设和运行的"全球农情遥感速报系统",是世界上开展全球尺度农情遥感业务监测的主要运行系统之一,可以在中国和全球尺度提供作物长势、单产、种植面积、产量和旱情等农情信息。自1998年建设至今,已经发展成为一个独立运行、监测内容全面、技术先进、监测结果可靠,并具有快速响应能力的系统。2004年,《遥感学报》(第8卷第6期)对该系统的主要技术方法进行了系统介绍。2005—2009年,通过对CropWatch的不断完善,提高了系统的独立性和运行效率,并在2008年春季雪灾、汶川地震、2009年冬小麦种植区春季干旱、2010年西南大旱等关键时期发挥了重要作用。详细介绍了2005—2009年间在系统化建设、监测的独立性和系统的应用推广等方面的进展,并对系统在"十二五"期间的发展重点进行了展望。
"CropWatch",developed and operated by Institute of Remote Sensing Applications(Chinese Academy of Sciences),is one of the three operational crop monitoring systems with remote sensing that can provide global-scale crop information.The system can provide information on crop yield,crop condition,crop acreage,crop production and agricultural drought,etc.The system has been developing since 1998.After 12 years′ improvement,it has been developed into a system that can provide independent,comprehensive and fast large scale crop information with advanced monitoring technology.A special issue on "CropWatch" was published by "Journal of Remote Sensing" in 2004 to summarize its methodology and development from 1998 to 2004.After that(2005-2009),"CropWatch" has made great improvement on system efficiency and independency.Great contribution from the system has been witnessed in snow disaster in south China in 2008,Wenchuan earthquake in 2008,drought in north China in 2009 and drought in southwest China in 2010.The paper introduces the development of the system between 2005 and 2009 in systematization,independency,system application and system extension in detail,and then presentes a future perspective on the system′s development in the Twelfth Five Years(from 2011 to 2016).
引文
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