地球科学进展 ›› 2022, Vol. 37 ›› Issue (5): 505 -518. doi: 10.11867/j.issn.1001-8166.2022.024

研究论文 上一篇    下一篇

《巴黎协定》未来气候情景下“一带一路”沿线区域气候舒适度预估
贾明瑞 1 , 2( ), 张晋韬 3, 王芳 1( )   
  1. 1.中国科学院地理科学与资源研究所陆地表层格局与过程模拟重点实验室,北京 100101
    2.中国 科学院大学资源与环境学院,北京 100049
    3.复旦大学大气与海洋科学系,上海 200438
  • 收稿日期:2021-10-21 修回日期:2022-01-07 出版日期:2022-05-10
  • 通讯作者: 王芳 E-mail:jiamr.19s@igsnrr.ac.cn;wangf@igsnrr.ac.cn
  • 基金资助:
    国家自然科学基金项目“国家自主贡献(INDC)目标情景下的全球及中国气候变化响应与格局”(41771050);国家重点研发计划项目“‘美丽中国’生态建设指标体系、评估方法及分区管理研究”(2019YFC0507805)

Changes in Thermal Comfort Conditions Throughout the Belt-and-Road Region in Response to Nationally Committed Emission Reductions Under the Paris Agreement

Mingrui JIA 1 , 2( ), Jintao ZHANG 3, Fang WANG 1( )   

  1. 1.Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China
    2.College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,China
    3.Department of Atmospheric and Oceanic Science,Fudan University,Shanghai 200438,China
  • Received:2021-10-21 Revised:2022-01-07 Online:2022-05-10 Published:2022-05-31
  • Contact: Fang WANG E-mail:jiamr.19s@igsnrr.ac.cn;wangf@igsnrr.ac.cn
  • About author:JIA Mingrui (1997-), female, Nanyang City, Henan Province, Master student. Research area include climate change. E-mail: jiamr.19s@igsnrr.ac.cn
  • Supported by:
    the National Natural Science Foundation of China “Global and Chinese climate changes under INDC emission scenarios”(41771050);The National Key Research and Development Program of China “Research on ‘Beautiful China’ ecological construction index system, assessment method and zoning management”(2019YFC0507805)

基于最新一代耦合气候模式比较计划全球气候模式的预估模拟结果,采用净有效温度指标,分析《巴黎协定》未来气候情景下“一带一路”沿线区域气候舒适度格局的变化。结果表明未来气候情景下研究区整体的热不舒适日数增多,冷不舒适日数减少,且二者存在明显的空间错配,舒适日数的增减则存在明显的空间分异。高纬度、高海拔寒冷区域(例如中东欧、西伯利亚和青藏高原)的冷不舒适日数大幅减少,舒适日数略有增加,低纬度温暖区域(例如东南亚和南亚)的热不舒适日数强烈增加,舒适日数明显减少。进一步结合人口分布来看,热不舒适天气的人口暴露度急剧增加,舒适和冷不舒适天气的人口暴露度减少,且前者的增量大大超过后两者的减量,导致“一带一路”沿线区域整体的气候舒适度水平呈下降态势。若在当前气候政策的基础上进一步加强减排力度,可以缓解这种不利影响。

Based on the global climate models participating in the sixth phase of the Coupled Model Intercomparison Project phase 6 (CMIP6), we have adopted the Net Effective Temperature (NET), a comprehensive indicator of the integrative effect of temperature, humidity, and wind speed, to analyze the changes in the regional climate comfort pattern throughout the Belt-and-Road region in response to nationally committed emission reductions under the Paris Agreement. Our results indicate that, under future climate scenarios, the number of warm-uncomfortable days increased and the number of cold-uncomfortable days decreased in the region, and there was a clear spatial mismatch between the two signals. The changes in comfort days were characterized by strong spatial heterogeneity. The number of cold-uncomfortable days at mid to high altitudes decreases remarkably, which is the same as in Central and Eastern Europe, Siberia, and the Qinghai-Tibet Plateau, while the number of comfortable days increased by a moderate amount. The number of warm-uncomfortable days at low latitudes increased significantly, such as in Southeast Asia and South Asia, while the number of comfortable days decreased substantially. Further analysis combined with the population distribution shows that the population which will be exposed to warm uncomfortable weather increases sharply, while the population which will be exposed to comfortable and cold uncomfortable weather decreases. The increase in the former significantly exceeds the decrease in the latter two; hence, the overall climatic comfort throughout the Belt-and-Road region deteriorates. This adverse effect can be mitigated if the emission reduction effort is further strengthened beyond the current climate policy.

中图分类号: 

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