气候变化研究进展 ›› 2025, Vol. 21 ›› Issue (2): 153-168.doi: 10.12006/j.issn.1673-1719.2024.280

• 创刊20周年纪念专栏 • 上一篇    下一篇

中国气候变化检测归因研究进展

孙颖1(), 王东阡1, 张学斌2   

  1. 1 气候系统预测与变化应对全国重点实验室,国家气候中心,北京 100081
    2 维多利亚大学太平洋气候影响联盟,不列颠哥伦比亚省 维多利亚 V8P 5C2,加拿大
  • 收稿日期:2024-11-04 修回日期:2024-12-18 出版日期:2025-03-30 发布日期:2025-02-28
  • 作者简介:孙颖,女,研究员,sunying@cma.gov.cn
  • 基金资助:
    国家自然科学基金(42025503);国家自然科学基金(U2342228);中国气象局重点创新团队“气候变化检测与应对”(CMA2022ZD03)

Progress in climate change detection and attribution studies in China

SUN Ying1(), WANG Dong-Qian1, ZHANG Xue-Bin2   

  1. 1 State Key Laboratory of Climate System Prediction and Risk Management, National Climate Centre, Beijing 100081, China
    2 Pacific Climate Impacts Consortium, University of Victoria, Victoria V8P 5C2, British Columbia, Canada
  • Received:2024-11-04 Revised:2024-12-18 Online:2025-03-30 Published:2025-02-28

摘要:

作为气候变化研究中的重大前沿科学领域,气候变化检测归因旨在揭示气候变化的原因,量化外强迫对气候变化的影响程度。这些问题不仅是气候变化科学研究的核心问题,也是气候变化国际谈判的热点和焦点问题。我国在检测归因领域总体起步较晚,但是近十年来,在中国科学家的努力下,我们从无到有实现了对中国区域气候变化和极端事件归因认识的若干突破,在中国气候变化检测归因领域取得了显著的研究进展。文中对该领域主要研究进展的回顾和梳理表明:20世纪中期以来,以温室气体排放为主的人类活动是中国区域变暖,极端温度频率、强度和持续时间变化的主要驱动因子。人类活动对极端降水变化产生了清晰的影响,同时也可在某些类型干旱的变化中发现人类活动的信号。百年时间尺度上,人类活动的信号可以在平均和极端温度指标的变化中检测到。对于重大高影响极端事件,人为强迫增加了极端高温事件发生的概率,减少了极端低温事件发生的概率。人类活动对强降水事件、干旱和复合事件的归因研究结论一致性较低,同时受到了事件定义和归因方法等的影响,要评估得出人类活动对这类事件影响程度的一般性结论仍然非常困难。未来需要加强对降水、干旱、大气环流、复合事件等变化的检测归因,理解并提高极端事件归因结果的可靠性。

关键词: 人类活动, 检测归因, 气候变化, 极端事件

Abstract:

As a major frontier scientific field in climate change research, climate change detection and attribution aim to reveal the causes of climate change and quantify the impact of external forcing on climate change. These issues are not only the core of scientific research on climate change, but also the hotspot and focus of the international negotiations on climate change. China started relatively late in the field of detection and attribution, but in the past decade, with the efforts of Chinese scientists, we have achieved a number of breakthroughs in the understanding of regional climate change and the attribution of extreme events in China, and made remarkable research progress in the field of detection and attribution of climate change in China. This review shows that since the middle of the 20th century, human activities, mainly greenhouse gas emissions, are the major driver of regional warming and changes in the frequency, intensity and duration of temperature extremes in China. Human activities have a clear influence on changes in extreme precipitation, and signals of human activity can also be found in changes in some types of drought. At century scale, anthropogenic signals can be detected in the change in both mean and extreme temperatures. For major high-impact extreme events, anthropogenic forcing increases the probability of hot extreme events and decreases the probability of cold extreme events. The attribution conclusions of human influence on heavy precipitation events, drought events and complex events have low consistency, and are affected by event definition and attribution methods, etc. It is still very difficult to assess the general conclusions on the extent of human activities’ influence on these events. In the future, it is necessary to strengthen the detection and attribution on changes in precipitation, drought, atmospheric circulation, compound events, etc., to understand and improve the reliability of extreme event attribution results.

Key words: Human influence, Detection and attribution, Climate change, Climate extremes

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