主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2011, Vol. 27 ›› Issue (2): 69-72.doi:

• 快报 • 上一篇    

基于MODIS影像的色林错湖面积变化及成因分析

拉巴1 陈涛1 拉巴卓玛1 次珍2   

  1. 1.西藏高原大气环境科学研究所,西藏 拉萨 850001;2.拉萨市气象局,西藏 拉萨 850001
  • 收稿日期:2010-11-30 修回日期:2011-01-11 出版日期:2011-04-30 发布日期:2011-01-11

Area change of Selincuo Lake and its forming reasons based on MODIS data

Laba1 CHEN Tao1 Labazhuoma1 Cizhen2   

  1. 1. Tibet Institute of Plateau Atmospheric and Environmental Science, Lasa 850001, China; 2. Lasa Meteorological Bureau, Lasa 850001, China
  • Received:2010-11-30 Revised:2011-01-11 Online:2011-04-30 Published:2011-01-11

摘要: 利用2002—2009年EOS/MODIS卫星遥感资料和2002-2009年气温、地表温度气象资料,对色林错湖面积变化进行分析,并探讨了其成因。结果表明:西藏那曲地区色林错湖(包括相邻的雅根错湖)面积在近8 a呈显著的扩大趋势,从2002年的1955.49 km2增至2009年的2197.46km2,8 a内增长了241.97 km2,现已超过纳木错湖面积,成为西藏第一大咸水湖。气温、地表温度升高导致冰雪融化和冻土层变浅是湖泊上涨的根本原因。通过研究证明了EOS/MODIS资料在研究湖泊变化中具有较好的指示作用。

关键词: 气候变化, MODIS影像, 色林错湖, 西藏

Abstract: According to EOS/MODIS satellite remote sensing data, air temperature and surface temperature data from weather stations from 2002 to 2009, the area changes of Selincuo Lake were analyzed, and its forming reasons were discussed. The results indicate that the areas of Selincuo Lake (including the adjacent Yagencuo Lake) in Naqu of Tibet autonomous region have obviously increased from 2002 to 2009. The areas increase from 1955.49 km2 in 2002 to 2197.46 km2 in 2009. The difference is 241.97 km2 during the 8 years. The areas of Selincuo Lake are larger than that of Namucuo Lake, and it becomes the largest saltwater lake in Tibet autonomous region now. The increases of air temperature and surface temperature lead to ice and snow melting, permafrost melting, which are the main reasons resulting in the lake rising. The above analysis shows that EOS/MODIS data are suitable to discuss the areas changes of lakes.

Key words: Climate change, MODIS image, Selincuo Lake, Tibet

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