ABSTRACT
In order to satisfy the requirements of safeguarding against ice floods and sufficiently utilize the limited water resources, a numerical ice flood model was developed, which is also one of the essential parts at Yellow River Conservancy Commission (YRCC). The numerical ice flood model of the Ning-Meng reach consists of five modules: pre-processing of meteorological data module which processes the observed meteorological data and numerical model output coming from China Meteorological Administration (CMA) and the Hyper-computation Centre of YRCC; pre-processing of hydrological data from observations at hydrometric stations; initialization of ice regime module with observations from hydrometric stations; thermal balance calculation module; and dynamic balance calculation module. YRCC is developing measures that not only safeguard against ice floods, but also assure the availability of adequate water resources. These provide the overall requirements for developing an ice regime forecasting system including lead-time prediction and required accuracy.
