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Effects of Snow Ratio on Annual Runoff Within the Budyko Framework : Volume 19, Issue 4 (24/04/2015)

By Zhang, D.

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Book Id: WPLBN0003989273
Format Type: PDF Article :
File Size: Pages 16
Reproduction Date: 2015

Title: Effects of Snow Ratio on Annual Runoff Within the Budyko Framework : Volume 19, Issue 4 (24/04/2015)  
Author: Zhang, D.
Volume: Vol. 19, Issue 4
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Ni, G., Yang, D., Zhang, D., Hu, S., & Cong, Z. (2015). Effects of Snow Ratio on Annual Runoff Within the Budyko Framework : Volume 19, Issue 4 (24/04/2015). Retrieved from

Description: State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 10084, China. A warmer climate may lead to less precipitation falling as snow in cold seasons. Such a switch in the state of precipitation not only alters temporal distribution of intra-annual runoff but also tends to yield less total annual runoff. Long-term water balance for 282 catchments across China is investigated, showing that a decreasing snow ratio reduces annual runoff for a given total precipitation. Within the Budyko framework, we develop an equation to quantify the relationship between snow ratio and annual runoff from a water–energy balance viewpoint. Based on the proposed equation, attribution of runoff change during the past several decades and possible runoff change induced by projected snow ratio change using climate experiment outputs archived in the Coupled Model Intercomparison Project Phase 5 (CMIP5) are analyzed. Results indicate that annual runoff in northwestern mountainous and northern high-latitude areas are sensitive to snow ratio change. The proposed model is applicable to other catchments easily and quantitatively for analyzing the effects of possible change in snow ratio on available water resources and evaluating the vulnerability of catchments to climate change.

Effects of snow ratio on annual runoff within the Budyko framework

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