干旱区研究

Arid Zone Research >

2014 , Vol. 31 >Issue 6: 1073 - 1077

DOI: https://doi.org/10.13866/j.azr.2014.06.14

Climate Change

Rate of Temperature Increase in Recent 50 Years in Xinjiang

  • CHEN Peng-xiang ,
  • MAO Wei-yi ,
  • BAI Su-qing ,
  • DUAN Jun-ze ,
  • CAO Meng
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  • Xinjiang Meteorological Observatory, Urumqi 830002, Xinjiang, China

Received date: 2013-12-25

  Revised date: 2014-04-11

  Online published: 2014-11-25

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Abstract

Based on the average temperatures from 89 meteorological stations in Xinjiang during the period from 1961 to 2010, the rate of the temperature increase was calculated by statistical method and counting GIS-based spatialization method. The results in different area were compared according to altitude. The results showed that ① the rate of the annual average temperature increase was 0.27 ℃·(10a)-1 and 0.32 ℃·(10a)-1 in Xinjiang calculated by GIS spatialization method and statistical method respectively while the rate of the ground surface temperature increase in mainland China was 0.23 ℃·(10a)-1 and 0.22 ℃·(10a)-1 in the northwestern China from 1951 to 2009. ② 15.7% of the weather stations were distributed in the areas with the altitude higher than 1 500 m, which accounted for 40.7% of Xinjiang. The rate of the annual average temperature increase by spatialization method is generally lower than the statistics from the climatic stations due to the uneven spatial distribution of the stations. ③ It’s more reasonable to use the GIS-based spatialization method rather than counting regional warming rate after GIS spatialization than the statistical GIS-based spatialization method included the data contributed from the areas without the weather stations. to analyze the rate of the temperature increase in Xinjiang because the icounting station data directly. Because the former method conciders landarea without human being more than the latter method, while meteorological station is ofter builded in anthropic zone. It’s especially important that the contribution of non-meteorological station data to the warming rate in Xinjiang which is a scarcely populated area.

Key words： spatialization; warming rate; Xinjiang

Cite this article

CHEN Peng-xiang , MAO Wei-yi , BAI Su-qing , DUAN Jun-ze , CAO Meng . Rate of Temperature Increase in Recent 50 Years in Xinjiang[J]. Arid Zone Research, 2014 , 31(6) : 1073 -1077 . DOI: 10.13866/j.azr.2014.06.14

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