| The spatial-temporal distribution change of maximum frozen soil depth and temperature change in altay region of Xinjiang Province from 1963 to 2012 |
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| DOI：10.7606/j.issn.1000-7601.2014.05.043 |
| Key Words: maximum frozen soil depth spatial-temporal distribution temperature altay region |
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| Abstract: |
| Based on the Maximum Frozen Soil Depth and annual mean temperature and Extreme low temperature across seven meteorological stations in Altay region from 1963—2012, using linear regression, Mann-Kendall mutation detection, Hurst R/S analysis method, the temporal evolution and spatial distribution of maximum depth and temperatures of frozen soil were analyzed. The results show: the mean-square deviation and coefficient of variation of maximum appears in Jimunai; the maximum depth have declined by 0.574 cm·a-1; The annual maximum frozen depth almost always occurs in February and March; Maximum Frozen Soil Depth appear an abrupt decrease in 1986—1987s in Altay region; the deepest of annual Extreme and maximum of average and average of maximum depth appears in Qinghe;The Maximum Frozen Soil Depth and are negatively correlated with annual mean temperature and Extreme low temperature and the correlation coefficients are -0.508 and -0.293. |