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Title
  • ja 積雪寒冷地域の森林域における蒸発散量の推定
  • en ESTIMATION OF EVAPOTRANSPIRATION FOREST AREAS IN SNOWY AND COLD REGIONS
Creator
    • ja 加藤, 晃司 en KATO, Koji ja-Kana カトウ, コウジ
    • ja 中津川, 誠 en NAKATSUGAWA, Makoto ja-Kana ナカツガワ, マコト
    • ja 橋本, 識秀 en HASHIMOTO, Norihide ja-Kana ハシモト, ノリヒデ
    • ja 新目, 竜一 en SHINME, Ryuichi ja-Kana シンメ, リュウイチ
Accessrights open access
Rights
  • ja Copyright 1999 土木学会 ダウンロードを含むこの著作物の利用は、著作権法の私的使用及び引用の範囲に限り認められます。その範囲外の利用については、土木学会の承諾が必要です。
Subject
  • NDC 510
  • Other en NDVI
  • Other en actual evapotranspiration
  • Other en forest area
  • Other en snowya nd cold region
Description
  • Other application/pdf
  • Abstract en This paper deals with estimation of actual evapotranspiration in order to evaluate the hydrologic cycle in a catchment area. Estimation of the hydrologic cycle is required for effective water use, flood control, and evaluation of water environment. However, it is difficult to estimate evapotranspiration in a wide area because of a scarcity of measured data. A method for using remote sensing data to estimate evapotranspirasion is proposed. In previous studies, NDVI values were applied to estimate the evapotranspiration. However, estimated results did not consider water balance in the catchment area scale. We calculate the evapotranspiration several dam catchmment areas in a snowy and cold region. The study areas are covered by mountains with steep slopes and its land use is entirely forested. In these areas, topographic effects on rainfall as well as snowfall must be taken into account. Rainfall and snowfall are accurately estimated by taking into account topographic factors such as elevation and direction of slope. As a result, actual evapotranspiration is calculated by applying the water balance method based on precipitation data. Finally, actual evapotranspiration is related to NDVI values so that it can be generally estimated in a wide catchment area.
Publisher ja 土木学会
Date
    Issued1999-02
Language
  • jpn
Resource Type journal article
Version Type VoR
Identifier HDL http://hdl.handle.net/10258/1526 , URI https://muroran-it.repo.nii.ac.jp/records/5738
Relation
  • isIdenticalTo NAID 130004043016
  • isIdenticalTo DOI https://doi.org/10.2208/prohe.43.85
Journal
    • PISSN 09167374
    • NCID AN10426673
      • ja 水工学論文集
      • Volume Number43 Page Start85 Page End90
File
Oaidate 2023-12-29