叶尔羌河流域绿洲蒸散量的遥感估算

干旱区研究 ›› 2012, Vol. 29 ›› Issue (3): 479-486.

叶尔羌河流域绿洲蒸散量的遥感估算

杨红娟^1，2，3, 丛振涛², 赵岩³, 陈俊鹏⁴

1. 中国科学院山地灾害与地表过程重点实验室，四川成都　610041；
2. 清华大学水沙科学与水利水电工程国家重点实验室，北京　100084；
3. 中国科学院水利部成都山地灾害与环境研究所，四川成都　610041； 
4. 喀什叶尔羌河勘测设计院，新疆莎车　844700

收稿日期:2011-04-27 修回日期:2011-10-13 出版日期:2012-05-15 发布日期:2012-05-30
作者简介:杨红娟（1982 -），女，河南襄城人，博士，助理研究员，主要研究方向为遥感在水文水资源中的应用.Email：yanghj@imde.ac.cn
基金资助:
国家自然科学基金资助项目（51179083）

RS-based Estimation of Evapotranspiration in the Yarkant Oasis

YANG Hong-Juan,^1，2，3 CONG Zhen-Tao², ZHAO Yan³, CHEN Jun-Peng⁴

1. Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu 610041, China;
2. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;
3. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
4. Yarkant River Survey and Design Institute, Shache 844700, Xinjiang, China

Received:2011-04-27 Revised:2011-10-13 Online:2012-05-15 Published:2012-05-30

摘要/Abstract

摘要： 以谐波法与双源遥感蒸散模型TSEB的耦合算法为基础，将模型反演的瞬时潜热通量扩展到日、月、年等时间尺度，并应用于新疆叶尔羌河流域绿洲。利用MODIS数据，结合地面气象资料，模拟分析了叶尔羌河绿洲2007年耗水的年内过程、区域分布以及不同土地利用的耗水比例。尽管该遥感方法只考虑地表能量平衡，但所模拟的绿洲年耗水总量与水量平衡法的估算结果接近，不同土地利用类型的蒸散量与类似山区来水条件下绿洲散耗型水文模型的模拟结果比较接近，表明该方法可以用于绿洲的耗水分析，估算结果可为绿洲水资源配置提供科学依据。

关键词: 绿洲, 蒸散模型, 潜热通量, MODIS, 土地利用类型, 叶尔羌河流域, 新疆

Abstract: In this paper, the values of latent heat flux were estimated for the Yarkant Oasis using the coupled algorithm of the harmonic analysis method, two-source energy balance (TSEB) model and MODIS data. The instantaneous evapotranspiration (ET) was extended to daily, monthly and annual scales. The spatiotemporal distribution of water consumption in the oasis in 2007 was analyzed. Water consumption proportions of different land use types were also calculated. In remote sensing method, though the surface energy balance was considered only, the differences between the simulated results of annual water consumption over the oasis and the values computed with water balance equation were low. Mean simulated annual ET results approximated to the values estimated with the runoffevaporation hydrological model for all the land use types. The results reveal that the ET model used in this paper can be used for researching water consumption in oasis, and the estimated results can provide scientific basis for redistributing water resources in the Yarkant Oasis.

Key words: Oasis, evapotranspiration model, latent heat flux, MODIS, land use, Yarkant, Xinjiang

杨红娟, 丛振涛, 赵岩, 陈俊鹏. 叶尔羌河流域绿洲蒸散量的遥感估算[J]. 干旱区研究, 2012, 29(3): 479-486.

YANG Hong-Juan, CONG Zhen-Tao, ZHAO Yan, CHEN Jun-Peng. RS-based Estimation of Evapotranspiration in the Yarkant Oasis[J]. , 2012, 29(3): 479-486.

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