Path Analysis on Impacts of Meteorological Factors on Snow Depth in Snowmelt Period of West Tianshan Mountains
Hu Shujuan
Lei Xiaoyun
Xing Kun
Liu Yi
Lv Jiaojiao
Abstract：The variation of snow depth is influenced by a combination of meteorological factors.Based on the meteorological and hydrological data of Tianshan snow-cover and avalanche research station,this paper has analyzed the impact of interactions between meteorological factors on variation of snow depth,through mathematical statistics,standardization and path analysis,etc.Analysis results show that in snowmeh period,the six meteorological factors such as atmospheric temperature,net radiation,relative humidity,etc affect snow depth in different degree,the correlation between net radiation and snow depth is the highest.The correlation between meteorological factors are different,the correlation between relative humidity and precipitation is close,correlation coefficient is as high as 0.854.The direct path index reflects the direct impact of independent meteorological factors on snow depth,while indirect path index reflects the indirect impact of independent meteorological factors on snow depth,under the influence of other meteorological factors.According to the absolute coefficient of determination,the contribution of meteorological factors on snow depth is net radiation,surface temperature,atmospheric temperature,precipitation,relative humidity,wind speed from big to small in turn.The residual coefficient of snow depth is 0.353,indicates that except for the six meteorological factors we study in this paper,there are other influence factors of snow depth change.
Keywords：snow depthpath analysisdirect effectindirect effectmeteorological factor
Publication Date：2017-07-02
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 33-37 )