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JOURNAL OF NATURAL RESOURCES >

2003 , Vol. 18 >Issue 2: 155 - 160

DOI: https://doi.org/10.11849/zrzyxb.2003.02.005

Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS

Estimation of evapotranspiration in the Yellow River basin using integrated NDVI

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  • 1. Departement of Geography, Center of Remote Sensing and GIS Research, Beijing Normal University, Beijing 100875, China;
    2. Institute of Environmental Sciences, Beijing Normal University, Beijing 100875, China;
    3. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China

Received date: 2002-08-29

  Revised date: 2002-12-10

  Online published: 2003-04-25

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Abstract

It is important to estimate surface evapotranspiration(ET)precisely in the process of basin water resources evaluation,drought monitoring and crop production simulation.In this paper,a relationship between annual evapotranspiration,integrated NDVI and relative moisture index was firstly established.Based on the relationship,the spatial distribution and dynamic change of annual ET in the Yellow River basin in recent 20years were estimated and analysed by using integrated AVHRR NDVI data,monthly mean air temperature and precipitation.In order to validate the model,the observed runoff data from hydrological station were also used.The results show that the mean annual ET of the Yellow River basin is389mm with great interannual variations.ET is the highest in southeast and the lowest in Erdos Plateau.

Key words： remote sensing; evapotranspiration; vegetation index; the Yellow River basin

Cite this article

SUN Rui, LIU Chang-ming, LI Xiao-wen . Estimation of evapotranspiration in the Yellow River basin using integrated NDVI[J]. JOURNAL OF NATURAL RESOURCES, 2003 , 18(2) : 155 -160 . DOI: 10.11849/zrzyxb.2003.02.005

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