Aiming at the quality and particle size requirement to the deicing snow product in the international market,we develop a new type of light weight and deicing snow screen.

Neural network model for predicting snow melting headwater inflow in irrigation areas;

The electrothermal properties and snow melting tests in field of the slabs were carried out.

On the basis of genetic analysis and flood time,the flood in Heilongjiang was divided into three types,that is ,storm(rain) flood,snowmelt and rain flood and ice flood in this paper.

For lack of the data on the distribution of the precipitation,temperature and snow in the Mountain areas,the traditional snowmelt-runoff prediction model couldn\'t reflect the influence of the terrain and the underlying surface on runoff yield and concentration and their effect were poor.