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

Hitoshi Miyamoto, Kohji Michioku, Hiroshi Maeba, Kazuya Nakayama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication34th IAHR Congress 2011 - Balance and Uncertainty
Subtitle of host publicationWater in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
PublisherInternational Association for Hydro-Environment Engineering and Research (IAHR)
Pages3247-3254
Number of pages8
ISBN (Electronic)9780858258686
Publication statusPublished - 2011 Jan 1
Externally publishedYes
Event34th 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
Duration: 2011 Jun 262011 Jul 1

Publication series

Name34th 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
CountryAustralia
CityBrisbane
Period11/6/2611/7/1

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Keywords

  • Horton's law
  • Network model
  • River basin environment
  • Stream order
  • Stream temperature
  • Water quality

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Water Science and Technology
  • Environmental Science (miscellaneous)

Cite this

Miyamoto, H., Michioku, K., Maeba, H., & Nakayama, K. (2011). A stream order network model for predicting basin-wide distribution of stream temperatures. In 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 (pp. 3247-3254). (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). International Association for Hydro-Environment Engineering and Research (IAHR).