The Climatic Characteristics over the Hei He River Experimental Central Area

In this paper, according to the monthly mean climatic data over Linze of Ganshu Province during the period of 1967—1981, and their comparison results with Beijing data during the period of 1959—1980, the results show whether annual insolation duration or total solar radiant heat in Linze is larger by 0.19 and 0.16 time, respectively, than that in Beijing, annual rainfall of Linze is one-fifth less than in Beijing and annual evaporation in Linze is 1.2 times as large as that in Beijing. Subsequently, we also obtain the following results: the sensible and the latent heat flux in Linze is larger than that in Beijing, during the January to November, however, the momentum flux in Beijing is larger than that in Linze from milled ten-day of November to first ten-day of April of next year. In generally, the momentum flux of Linze is larger than that of Beijing.