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探索人类发热在热浪期间对城市气候的潜在影响
Ansar Khan1, Konstantina Vasilakopoulou2, Mattheos Santamouris2
1Department of Geography, Lalbaba College, University of Calcutta, Kolkata, India. khanansargeo@gmail.com.
Scientific reports
|January 31, 2025
概括
人为热量 (AH) 显著地使城市地区变暖,在悉尼增加了2°C以上的环境温度和8°C的表面温度. 这项研究强调了需要管理AH的气候弹性和城市宜居性.
科学领域:
- 城市气候学 城市气候学
- 环境科学 环境科学
- 大气科学 大气科学
背景情况:
- 城市因气候变化而面临越来越多的城市热挑战.
- 了解人为热量 (AH) 对城市气候弹性至关重要.
- 与AH相关的悉尼城市气候动态仍未得到充分探索.
研究的目的:
- 为了模拟人为热量 (AH) 对悉尼城市气候的影响.
- 调查不同的AH水平如何影响局部温度,风和边界层动态.
- 评估AH对主要城市中心海风循环的影响.
主要方法:
- 使用了天气研究和预报 (WRF) 模型.
- 综合建筑效应参数化 (BEP) 和建筑能源模型 (BEM) (WRF/BEP+BEM).
- 分析了四个不同的AH发布场景.
主要成果:
- 较高的AH水平导致感知热量 (266.5W m-2) 和潜热量 (35.3W m-2) 的显著增加.
- 环境温度上升了2.1°C,表面温度上升了8.1°C.
- 行星边界层 (PBL) 的高度增加了2013.7米,海风循环加剧了.
结论:
- 人为热量直接加剧城市变暖,改变大气动态.
- 对可持续的城市发展和气候适应而言,管理高空空气是必不可少的.
- 结果为悉尼和类似城市的城市规划和政策提供了关键的见解.
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