Estimation of Meso-scale Catchment Actual Evapotranspiration Using Landsat TM Data. The Case of Abashiri and Tokoro River Basin.

DOI

Bibliographic Information

Other Title
  • ランドサットＴＭデータを用いたメソスケールの流域実蒸発散量の推定　網走川・常呂川流域について
  • the Case of Abashiri and Tokoro River Basin
  • 網走川・常呂川流域について

Abstract

This study propose an estimation method of the annual changes of monthly actual evapotranspiration (ET) in a meso-scale river basin (100-2, 800km2) by using a complementary relationship equation and Kojima equation, which require meteorological data, Landsat TM data and digital terrain model (DTM). A surface soil moisture index is proposed in order to describe the surface soil moisture as the index of zero to one. This method was applied to the Abashiri and Tokoro River basin in the eastern part of Hokkaido. The influence of some factors, e.g. land cover category, land development, slope direction and air temperature, on the annual ET of the Abashiri River basin was examined. The annual changes of ET and surface soil moisture index in the Tokoro River basin were also estimated.

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Keywords

Details 詳細情報について

  • CRID
    1390001204440319872
  • NII Article ID
    130003664431
  • DOI
    10.3178/jjshwr.9.188
  • ISSN
    13492853
    09151389
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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