Title |
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ja
積雪寒冷地域の森林域における蒸発散量の推定
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en
ESTIMATION OF EVAPOTRANSPIRATION FOREST AREAS IN SNOWY AND COLD REGIONS
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Creator |
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ja
加藤, 晃司
en
KATO, Koji
ja-Kana
カトウ, コウジ
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ja
中津川, 誠
en
NAKATSUGAWA, Makoto
ja-Kana
ナカツガワ, マコト
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ja
橋本, 識秀
en
HASHIMOTO, Norihide
ja-Kana
ハシモト, ノリヒデ
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ja
新目, 竜一
en
SHINME, Ryuichi
ja-Kana
シンメ, リュウイチ
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Accessrights |
open access |
Rights |
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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。
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Subject |
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NDC
510
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Other
en
NDVI
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Other
en
actual evapotranspiration
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Other
en
forest area
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Other
en
snowya nd cold region
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Description |
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Other
application/pdf
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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.
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Publisher |
ja
土木学会
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Date |
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Language |
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Resource Type |
journal article |
Version Type |
VoR |
Identifier |
HDL
http://hdl.handle.net/10258/1526
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URI
https://muroran-it.repo.nii.ac.jp/records/5738
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Relation |
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isIdenticalTo
NAID
130004043016
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isIdenticalTo
DOI
https://doi.org/10.2208/prohe.43.85
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Journal |
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PISSN
09167374
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NCID
AN10426673
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ja
水工学論文集
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Volume Number43
Page Start85
Page End90
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File |
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Oaidate |
2023-12-29 |