在阿拉伯半岛的城市中心增加了人类的热不适
Safi Ullah1,2, Abdullah Aldossary2,3, Waheed Ullah4
1Environmental Science and Engineering Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), 23955-6900, Thuwal, Saudi Arabia.
Scientific reports
|February 17, 2024
概括
由于气候变化,阿拉伯半岛城市的人类热不适正在增加. 这一趋势自1998年以来尤为明显,迫切需要城市规划和公共卫生方面的适应战略.
科学领域:
- 气候科学 气候科学
- 城市气候学 城市气候学
- 公共卫生 公共卫生
背景情况:
- 人为气候变化加剧了城市地区人类的热不适,造成了严重的公共卫生风险.
- 在阿拉伯半岛 (AP) 等炎热超干旱地区,人类热不适的时空动态存在有限的研究.
研究的目的:
- 分析人类热不适的时空变化及其在阿拉伯半岛1979-2022年的特征.
- 评估该地区普遍热气候指数 (UTCI) 和厄尔尼诺-南方振荡 (ENSO) 之间的关系.
主要方法:
- 使用了高分辨率的ERA5-HEAT数据集 (人体热量舒适) 在1979-2022年期间.
- 分析了人类热不适类别及其特征的时空变化.
- 在阿拉伯半岛评估UTCI和ENSO指数之间的相关性.
主要成果:
- 在主要的AP城市中心观察到人类热不适的显著增加 (0.4-0.8°C),热应激的频率和强度更高.
- 从1998年开始,UTI指数,频率和强度的明显线性增长,表明转向更严重的高温条件.
- 在AP中发现了UTCI和ENSO指数之间的双极相关性模式,西南地区呈正相关性,东部地区呈负相关性.
结论:
- 阿拉伯半岛的城市地区正在经历不断升级的人类热不适和热压力.
- 紧急实施气候适应和减缓战略对于AP的公共卫生和城市规划至关重要.
- 未来的城市设计必须优先考虑减轻受气候变暖影响的弱势群体的热应激.
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