| 西藏羊卓雍错湖面遥感监测模型及近期变化 |
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| 引用本文： | 除多,旺堆,普穷,德吉央宗,拉巴卓玛,普布次仁,张雪芹,孙瑞.西藏羊卓雍错湖面遥感监测模型及近期变化[J].冰川冻土,2012,34(3):530-537. |
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| 作者姓名： | 除多 旺堆 普穷 德吉央宗 拉巴卓玛 普布次仁 张雪芹 孙瑞 |
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| 作者单位： | 中国气象局成都高原气象研究所拉萨分部,西藏拉萨850000／西藏高原大气环境科学研究所,西藏拉萨850000;西藏自治区水文水资源勘测局,西藏拉萨,850000;西藏自治区山南地区浪卡子县气象局,西藏,851100;西藏高原大气环境科学研究所,西藏拉萨,850000;中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 西藏自治区重点科技计划项目，国家自然科学基金项目，西藏自治区气象局局设项目资助 |
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| 摘 要： | 羊卓雍错作为西藏高原三大圣湖之一和藏南重要的高原特色风景旅游景区,其水域变化受到当地老百姓和各级政府部门的关注.应用高分辨率陆地资源卫星等遥感数据可以方便、准确地获取湖泊面积、周长等信息,但是由于Landsat等高分辨率陆地资源卫星影像受到卫星重复周期和卫星过顶时多云天气的影响,无法实现湖泊面积变化的常规业务化连续监测.为此,以Landsat等高分辨率陆地资源卫星为主要遥感信息源,结合羊卓雍错水位观测资料,建立了羊卓雍错湖泊面积变化与水位波动之间的相关模型.在此基础上,利用该湖泊面积遥感监测模型,结合近期水位观测资料分析了羊卓雍错湖面面积变化特征与趋势.
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| 关 键 词： | 湖泊面积 遥感监测模型 羊卓雍错 西藏 |
Remote Sensing Based Lake Area Monitoring Model for Yamzho Yumco Lake in Tibet Region |
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| CHU Duo,WANG Dui,PU Qiong,DEJI Yangzong,LABA Zhuoma,PUBU Ciren,ZHANG Xueqin,SUN Rui.Remote Sensing Based Lake Area Monitoring Model for Yamzho Yumco Lake in Tibet Region[J].Journal of Glaciology and Geocryology,2012,34(3):530-537. |
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| Authors: | CHU Duo WANG Dui PU Qiong DEJI Yangzong LABA Zhuoma PUBU Ciren ZHANG Xueqin SUN Rui |
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| Institution: | 1.Lhasa Campus of Institute of Plateau Meteorology,China Meteorology Adimistriation,Lhasa Tibet 850000;2.Tibet Institute of Plateau Atmospheric and Environmental Sciences,Lhasa Tibet 850000;3.Tibet Bureau of Hydrology and Water Resources,Lhasa Tibet 850000;4.Langkazi Meteorological Bureau,Langkazi Tibet 851100;5.Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101) |
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| Abstract: | The Yamzho Yumco Lake,located 100 km south of Lhasa at an elevation of 4 400 meters with 643.98 km2 in area,is one of the three sacred lakes and a tourist attraction with plateau features in southern Tibet Region.The locals and relevant government agencies are very concerning about its water level variations.At present,the only information on lake variation is the water level change provided by Tibet Hydrological Bureau,and no any information about lake area change is available.The accurate information of lake area change can be obtained through interpreting the high resolution satellite images,such as Landsat,ALOS etc.However,the operational lake area monitoring is almost impossible because of long repeated cycles of resources satellite and cloudy weather.Therefore,in this study,an operational lake area monitoring model is developed based on the correlation between lake area and lake water level,by using remote sensing images of Landsat,ALOS and CBERS2,in combination with corresponding water level records from Yamzho Yumco Hydrological Station.Finally,using this monitoring model,the lake area variation from January 2010 to March 2011 is analyzed. |
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| Keywords: | lake area monitoring model Yamzho Yumco Lake Tibet Region |
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