| 青藏三江源区蒸发量遥感估算及对湖泊湿地的响应 |
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| 引用本文： | 赵静,姜琦刚,陈凤臻,王坤.青藏三江源区蒸发量遥感估算及对湖泊湿地的响应[J].吉林大学学报(地球科学版),2009,39(3). |
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| 作者姓名： | 赵静 姜琦刚 陈凤臻 王坤 |
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| 作者单位： | 1. 吉林大学,地球探测科学与技术学院,长春,130026
2. 吉林大学,地球探测科学与技术学院,长春,130026;赤峰学院,资源与环境管理系,内蒙古,赤峰,024000 |
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| 基金项目： | 中国地质调查局研究项目 |
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| 摘 要： | 青藏三江源区湖泊湿地变化一直以来备受关注,气候因素被认为是湖泊湿地变化的主要影响因素.与温度和降水资料相比,气象站获取蒸发量数据比较困难,而遥感技术却为估算区域地表蒸发量提供了一条新的途径.基于地表能量平衡原理,结合MODIS卫星数据和研究区气象资料,建立三江源区蒸发量估算模型,分析研究区内蒸发分布规律,并探讨温度、降水量、风速和蒸发量之间的相关关系,最后分析蒸发量对源区湖泊湿地变化的响应.研究结果表明:三江源蒸发量呈增加趋势,区域蒸发量随水热、植被覆盖和海拔高度差异而变化;研究区蒸发量受温度和降水量影响较大;蒸发量增大是三江源区湖泊萎缩和湿地退化的主要影响因素.
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| 关 键 词： | 遥感 能量平衡原理 蒸发量 青藏高原 三江源 湖泊湿地响应 |
RS Based Evaporation Estimation of Three River Sources in Qinghai-Tibet Plateau and Its Response to Lakes and Wetlands |
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| ZHAO Jing,JING Qi-gang,CHEN Feng-zhen,WANG Kun.RS Based Evaporation Estimation of Three River Sources in Qinghai-Tibet Plateau and Its Response to Lakes and Wetlands[J].Journal of Jilin Unviersity:Earth Science Edition,2009,39(3). |
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| Authors: | ZHAO Jing JING Qi-gang CHEN Feng-zhen WANG Kun |
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| Institution: | ZHAO Jing1,JING Qi-gang1,CHEN Feng-zhen1,2,WANG Kun11.College of Geo-Exploration of Science , Technology,Jilin University,Changchun 130026,China2.Department of Resource , Environmental Management,Chifeng University,Chifeng,Inner Mongolia 024000,China |
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| Abstract: | The changes of lakes and wetlands in the Three River Sources have received many concerns all the time,climate changes is considered as the main factor of the changes of lakes and wetlands.Comparing with the temperature and precipitation,the evaporation data was difficult to acquire from the weather stations,but the RS technology provides a new approach to estimate the regional surface evaporation.Based on the principle of surface energy balance,combining with MODIS data and the meteorological data of the st... |
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| Keywords: | RS principle of surface energy balance evaporation Qinghai-Tibet Plateau Three River Sources Region response to lakes and wetlands |
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