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遥感技术与应用  2001, Vol. 16 Issue (1): 32-36    DOI: 10.11873/j.issn.1004-0323.2001.1.32
技术方法     
宁夏主要作物霜冻遥感监测研
张晓煜1,陈豫英2,苏占胜1,周慧琴1,马玉平3(1宁夏气象科研所;2宁夏气象台;3宁夏气象局 宁夏银川 750002)
A Study on Monitoring Frost of Main Crop in the Area ofNingxia by Using Remote Sensing
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摘要: 摘要:利用1991~2000年NOAA卫星资料、宁夏各台站温度资料和霜冻调查资料,在分析宁夏霜冻发生规律和特点的基础上,利用植被指数差值(DVI)法(间接法)、温度指示(TR)法(直接法)和冷谷面积法(ACV)监测宁夏不同类型的霜冻,取得了良好效果。关 键 词:植被指数; AVHRR;最低气温;霜冻;遥感中图分类号:TP 79
Abstract: ZHANG Xiao-yu1, CHEN Yu-ying2, SU Zhan-sheng1,ZHOU Hui-qin1, MA Yu-ping3(1.Ningxia Meteorological Institute, 2.Ningxia Meteorological Observatory,3Ningxia Meteorological office,Yinchuan750002,China)Abstract:The frost occurred is lies on many factors, such as condition of weather, landform, soil texture,bacterial population and vegetation itself etc. To monitor the frost by using remote sensing, we have tosolve many problems, for example, the precision of temperature retrieval and distribution of vegetation byusing NOAA data. In addition, we have to consider to both the aerosol and humidity effect on the temper-ature retrieval. Due to above mentioned reasons, monitoring the frost by remote sensing is rather compli-cated and difficult.Based on the analysis of the characteristic and the law of the frost, using the data of NOAA andweather station during 1991 to 2000,as well as using the data of the frost damage, there are three methodswere introduced to monitor the frost in Ningxia in this paper. The first is difference vegetation index(DVI) which monitoring the frost by means of the difference of vegetation index between fore-frost and af-ter-frost. The second is temperature reference (TR) which monitoring the frost by compare to the differ-ence between the temperature retrieval and frost index of crops. The third is the area of cold valley(ACV) which obtained ACV by integral the temperature below the frost index. We have examined themonitoring precision of those methods, the results show that each is available to monitor the different typeof frost in Ningxia.Key words:Vegetation index, AVHRR, Minimum temperature, Frost, Remote sensing
出版日期: 2011-12-26
作者简介: 收稿日期:2000-08-31;修订日期:2001-01-19作者简介:张晓煜(1968-),男,工程师,主要从事遥感技术应用和农业气象研究工作。
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