干旱区研究

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2021 , Vol. 38 >Issue 3: 695 - 703

DOI: https://doi.org/10.13866/j.azr.2021.03.11

天气与气候

近40a中巴经济走廊气候变化时空分布特征

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  • 1.乌鲁木齐气象卫星地面站,新疆 乌鲁木齐830011
    2.中国科学院大气物理研究所大气科学与地球流体力学数值模拟国家重点实验室,北京100029
    3.中国科学院大学,北京100049
    4.中国气象局乌鲁木齐沙漠气象研究所,新疆 乌鲁木齐830002
于志翔（1988-）,男,高级工程师,主要从事环境气象与卫星资料分析研究. E-mail: 676854355@qq.com

收稿日期: 2020-10-10

  修回日期: 2020-12-14

  网络出版日期: 2021-06-17

基金资助

新疆维吾尔自治区区域协同创新专项(上海合作组织科技伙伴计划及国际科技合作计划)(2019E01005);新疆维吾尔自治区创新环境建设专项-天山青年计划(2019Q038)

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Spatio-temporal characteristics of climate change in China-Pakistan Economic Corridor from 1980 to 2019

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  • 1. Urumqi Meteorological Satellite Ground Station, Urumqi 830011, Xinjiang, China
    2. State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
    3. University of the Chinese Academy of Sciences, Beijing 100049, China
    4. Institute of Desert Meteorology, Chinese Meteorological Administration, Urumqi 830002, Xinjiang, China

Received date: 2020-10-10

  Revised date: 2020-12-14

  Online published: 2021-06-17

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摘要

中巴经济走廊是“一带一路”倡议的重要组成部分,深入认识该地区气候变化时空分布特征和规律,对于项目顺利实施和安全保障有重大意义。采用CRU TSv4.04逐月地面气候要素数据集,分析1980—2019年中巴经济走廊地区气温、降水、干湿状况的气候变化时空分布特征。结果表明：中巴经济走廊地区气温呈显著上升趋势,中部地区增温速率低于两端地区,最低温度增温速率最快,为0.37 ℃·(10a)-1;平均气温次之,增温速率为0.32 ℃·(10a)-1;最高温度增温速率最慢,为0.29 ℃·(10a)-1。降水量、降水日数与干湿变化的区域性差异较大,其中巴基斯坦西南部降水量显著减少,最大速率为-20 mm·(10a)-1,变干趋势明显;巴基斯坦中部地区降水日数显著增加,最大速率为4 d·(10a)-1。

关键词： 中巴经济走廊; 气温; 降水; 干湿变化

本文引用格式

于志翔,于晓晶,杨帆 . 近40a中巴经济走廊气候变化时空分布特征[J]. 干旱区研究, 2021 , 38(3) : 695 -703 . DOI: 10.13866/j.azr.2021.03.11

Abstract

The China-Pakistan economic Corridor (CPEC) runs through Kashi, Xinjiang, China, and Pakistan; it is the flagship project of one belt and one road. This region has varied topography, complex and changeable climate, and frequent extreme events. Especially regarding global warming, climate change research has been closely linked to environmental and development issues. It is important for project implementation and security to better understand the spatio-temporal characteristics of climate change in this region. Using the monthly Climatic Research Unit Time Series v. 4.04 (TS v. 4.04), the detailed climatology and change in temperature, precipitation, and dry-wet condition over CPEC during 1980-2019 were analyzed. The results showed that temperature has a significant increasing tendency with the highest rate in the central CPEC than the two ends. The rate of minimum temperature [0.37 °C·(10a) -1] is higher than the mean temperature [0.32 °C·(10a) -1] and maximum temperature [0.29 °C·(10a) -1]. There were larger regional differences in precipitation change, wet days, and dry-wet situations. Precipitation is considerably decreasing in the southwestern CPEC with a maximum rate of -20 mm·(10a)-1. It is getting dry, while the wet days significantly increase in the central CPEC with a maximum rate of 4 d·(10a)-1.

Key words： China-Pakistan Economic Corridor; temperature; precipitation; dry-wet change

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