在高度依赖的变暖下极端温度的时空分布变化及其对林大巴山区区域变暖的反应特征
Yanhong Li1, Lianqi Zhu1, Zheng Duan2
1College of Geographical Sciences, Faculty of Geographical Science and Engineering, Henan University, Zhengzhou, 450046, China.
Journal of environmental management
|August 28, 2025
概括
林大巴山脉的极端气温显示出显著的变暖,从1980年至2017年间,热浪增加,寒流减少. 较高的海拔对气候变化最敏感,表现出高度依赖的温暖效应.
科学领域:
- 气候学
- 环境科学
- 山地研究
背景情况:
- 极端温度事件对生态系统和人类活动产生重大影响.
- 由于地形不同,山区对气候变化有复杂的反应.
- 了解温度趋势的高度变化对于区域气候适应至关重要.
研究的目的:
- 分析林大巴山脉极端温度事件的时空模式和趋势.
- 研究极端温度对不同海拔区域气候变暖的反应.
- 在这个复杂的山区探索极端温度变化的驱动机制.
主要方法:
- 来自114个气象站的每日温度数据分析 (1980-2017).
- 使用RClimDex计算15个极端温度指数.
- 应用曼-肯德尔测试,森的斜率估计器,随机森林模型和皮尔森相关性分析.
主要成果:
- 观察到显著的变暖趋势,极端高温的增加和极端低温的减少.
- 较高的海拔区域 (CE I,CE II) 比较低的区域 (PE I,PE II) 对气候变暖的敏感性更高.
- 确定了高度依赖的积极变暖 (EDW),高海拔地区的变暖更为强烈.
结论:
- 复杂的地形和多因素的相互作用导致山区的气候异常.
- 区域热水条件和大气循环是高海拔地区气候变化的关键调节因素.
- 这些发现为全球山区的极端气候应对,风险评估和适应策略提供了基础.
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