連続モニタリングによる流域水温の可視化 Visualization of Water Temperature Distribution in a Watershed through Continuous Monitoring

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In this paper, we report monitoring results of water temperature in 24 stream sites of the Ibogawa watershed, Hyogo, Japan. The spatial distributions of the averaged water temperature in the whole watershed show that the temperature gradually increases form the upper stream to the river mouth. The spectrum analysis of temperature time series indicates that the fluctuation component with the period of 24 hour is predominant because of the solar radiation. From the comparison of the equilibrium water temperature with the observed temperature, not only the solar radiation but also other effects such as the heat advection. from the upstream may be important for water temperature prediction.

収録刊行物

  • 可視化情報学会誌. Suppl.

    可視化情報学会誌. Suppl. 26(2), 47-48, 2006-09-15

    The Visualization Society of Japan

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