Quantification of the Environmental Effects of Freezing and Thawing in the Yalong River Basin

Abstract

In this paper, through the statistics of Yalong River Basin environmental climate data in the past 30 years. Firstly, the statistical method of the number of freeze-thaw times was determined; secondly, the research was carried out from the temperature, solar irradiation, elevation and cooling rate, and the influence on the annual average number of freeze-thaw cycles in the basin was analyzed one by one, and it was found that there was a good correlation between the temperature, solar irradiation and elevation and the number of freeze-thaw cycles; finally, the average atmosphere temperature of the coldest month and the average irradiation of the unit elevation were selected for regression analysis, and the quantitative model of the number of freeze-thaw cycles in the basin was obtained. Finally, the average atmosphere temperature of the coldest month and irradiance per unit elevation were selected for regression analysis, and a quantitative model of the freeze-thaw cycle in this basin was obtained, which is more practical and has higher prediction accuracy than the traditional model, and can better guide the design of concrete engineering in Yalong River basin.