A stream order network model for predicting basin-wide distribution of stream temperatures

Hitoshi Miyamoto, Kohji Michioku, Hiroshi Maeba, Kazuya Nakayama

研究成果: Conference contribution

抄録

A basin-wide distribution model was developed for stream temperature prediction along a river network. In order to express the channel segment connection from sources to the river mouth, the model used Horton's geomorphologic laws for channel networks and river basins with stream ordering systems. Within the each stream link, a theoretical solution derived from a thermal energy equation was used to predict longitudinal variation of stream temperatures. The model furthermore took into account solar radiation reduction due both to riparian vegetation and basin topography, as well as thermal advection from lateral land-uses. Comparison of the model prediction with basin observation in the Ibo River of Japan showed very good agreement for the thermal structure along the river network for almost all seasons, excluding an autumnal month in which the thermal budget on the water surface was just changed from positive to negative at the moment.

本文言語English
ホスト出版物のタイトル34th IAHR Congress 2011 - Balance and Uncertainty
ホスト出版物のサブタイトルWater in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
出版社International Association for Hydro-Environment Engineering and Research (IAHR)
ページ3247-3254
ページ数8
ISBN(電子版)9780858258686
出版ステータスPublished - 2011
外部発表はい
イベント34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering - Brisbane, Australia
継続期間: 2011 6 262011 7 1

出版物シリーズ

名前34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering

Conference

Conference34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
国/地域Australia
CityBrisbane
Period11/6/2611/7/1

ASJC Scopus subject areas

  • 工学(その他)
  • 水の科学と技術
  • 環境科学(その他)

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