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冰川冻土 ›› 2020, Vol. 42 ›› Issue (3): 745-755.doi: 10.7522/j.issn.1000-0240.2018.1084

• 冰冻圈与全球变化 • 上一篇    下一篇

1962 - 2013年新疆阿勒泰极端气温时空变化特征

吕婷1,2(), 武胜利1,2(), 葛欢欢1,2, 李京龙1,2   

  1. 1.新疆师范大学 地理科学与旅游学院,新疆 乌鲁木齐 830054
    2.新疆师范大学 新疆干旱区湖泊环境 与资源重点实验室,新疆 乌鲁木齐 830054
  • 收稿日期:2018-07-03 修回日期:2018-09-18 出版日期:2020-10-31 发布日期:2020-12-08
  • 通讯作者: 武胜利 E-mail:lvting0209@126.com;wushengli77@126.com
  • 作者简介:吕婷(1994 - ), 女, 甘肃平凉人, 2016年在陇东学院获学士学位, 现为新疆师范大学在读硕士研究生, 从事干旱区环境演变与气候变化研究. E-mail: lvting0209@126.com
  • 基金资助:
    国家自然科学基金项目(41161004);NSFC-新疆联合基金项目(U1138302);新疆干旱区湖泊环境与资源实验室基金项目(XJDX0909-2012-03)

Spatial and temporal variation characteristics of extreme air temperature in Altay Prefecture, Xinjiang, 1962 - 2013

Ting LÜ1,2(), Shengli WU1,2(), Huanhuan GE1,2, Jinglong LI1,2   

  1. 1.College of Geographical Science and Tourism,Xinjiang Normal University,Urumqi 830054,China
    2.Xinjiang Laboratory of Lake Environment and Resources in Arid Zone,Xinjiang Normal University,Urumqi 830054,China
  • Received:2018-07-03 Revised:2018-09-18 Online:2020-10-31 Published:2020-12-08
  • Contact: Shengli WU E-mail:lvting0209@126.com;wushengli77@126.com

摘要:

基于新疆阿勒泰地区5个国家气象站的逐日平均气温、 最高气温和最低气温气象数据, 利用一元线性回归、 9 a滑动平均等方法分析了该地区近52年极端气温的时空变化规律。结果表明: (1)阿勒泰地区平均气温、 平均最高气温、 平均最低气温均显著上升, 上升速率为0.40、 0.29、 0.58 ℃·(10a)-1; 秋、 冬季上升幅度最大。(2)极端最高气温、 最低气温极高值、 暖昼、 暖夜以不同的速率上升(增加), 分别为0.19 ℃·(10a)-1、 0.58 ℃·(10a)-1、 1.45 d·(10a)-1、 3.37 d·(10a)-1。气温日较差以-0.29 ℃·(10a)-1的速率下降; 生长季长度呈上升趋势, 增加速率为3.31 d·(10a)-1。暖日、 暖夜在四季均呈上升趋势。除极端最高气温和生长季长度外, 其他指数均有50%以上的站点呈上升趋势。(3)极端最低气温、 最高气温极低值分别以0.68、 0.48 ℃·(10a)-1的速率上升; 冷昼、 冷夜、 冰日、 霜日均呈下降趋势, 减少速率分别为-1.57、 -3.69、 -1.79、 -4.40 d·(10a)-1。仅冷夜、 霜日两个指数在所有站点显著下降。(4)冷指数的减小幅度大于暖指数的增大幅度, 夜指数的减小幅度大于昼指数的增大幅度。

关键词: 极端气温, 时空变化, 阿勒泰, 新疆

Abstract:

The meteorological data from five meteorological stations in Altay Prefecture were analyzed by means of liner regression method, 9-year moving average analysis method to get spatial and temporal variations of air temperature in the prefecture, from 1962 to 2013. The results show that: (1) Annual mean air temperature, mean maximum and mean minimum air temperature had increased significantly with the rate of 0.40, 0.29, 0.58 ℃·(10a)-1, and the maximum ones happened in winter and autumn. (2) The extreme maximum air temperature, the yearly maximum value of daily minimum air temperature, warm day and warm night had risen with the rate of 0.19 ℃·(10a)-1, 0.58 ℃·(10a)-1, 1.45 d·(10a)-1, 3.37 d·(10a)-1; diurnal temperature range had decreased with a rate of -0.29 ℃·(10a)-1; the growing season length had increased with a rate of 3.31 d·(10a)-1. Warm day and warm night had increased in every season at more than 50% stations; in the rest stations, all indices had increased, except for the maximum air temperature and the growing season length. (3) The extreme minimum air temperature and the yearly minimum value of daily maximum air temperature had increased with the rate of 0.68, 0.48 ℃·(10a)-1. Cold days, cold nights, freezing days, frost days had decreased with the rate of -1.57, -3.69, -1.79 and -4.40 d·(10a)-1; cold night and frost day at all stations had significantly decreased. (4) The decrease of cold indices was larger than the increase of warm indices, and the decrease of night indices was larger than the increase of day indices. These results would provide theoretical basis for the sustainable development of local agriculture and prevent meteorological disasters in Altay Prefecture.

Key words: extreme air temperature, spatial and temporal variation, Altay Prefecture, Xinjiang

中图分类号: 

  • P423.3