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《Journal of Glaciolgy and Geocryology》 2001-03
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Research on Prediction Mathematical Model of Freeze-up of River Ice Cover

KE Su-juan, ZHANG Xue-cheng, WANG Yu-ming (Hydrology Bureau of YRCC, Zhengzhou Henan 450004, China)  
In the upper reaches of the Yellow River where damaging spring breakup ice jams are recurring events, are responsible for the flooding. Freeze-up occurrence condition of river ice cover is one of control factors in breakup ice jam flooding. Present knowledge of freeze-up of river ice cover processes can allow for the development of a deterministic freeze-up prediction model. In this paper, river ice hydraulics, freeze-up mechanism and the factors influencing freeze-up were analyzed, and the freeze-up prediction mathematical model was established. The use of mathematics model to predict freeze-up ice covers occurrence is presented, with an example application for Inner Mongolia reaches of the Yellow River, the results show that the model can be used easily and its precision is high.
【Fund】: 国家自然科学基金重点项目 ( 5 9739170 )资助
【CateGory Index】: P338.4
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