Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087853 |
Where are white roofs more effective in cooling the surface? | |
Linying Wang; Maoyi Huang; Dan Li | |
2020-07-17 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | By reflecting more sunlight, white (cool) roofs experience lower surface temperatures and produce less heating of the surrounding air. The effectiveness of cool roofs, quantified by the surface temperature difference between cool and regular roofs (ΔT s ), is known to vary spatially. A common perception is that ΔT s is controlled by solar radiation that reaches the roof surface. Here we use an Earth System Model and a surface energy balance model to show that the spatial variability of ΔT s , when normalized by the albedo difference between cool and regular roofs Δα , is also controlled by an energy distribution factor that encodes the efficiencies of surface energy balance components in dissipating heat. Our results suggest that painting the roof white is more effective when the roof has less water holding capacity and smaller thermal admittance and is located in places with more solar radiation, less precipitation, and lower wind speed. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/284314 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Linying Wang,Maoyi Huang,Dan Li. Where are white roofs more effective in cooling the surface?[J]. Geophysical Research Letters,2020. |
APA | Linying Wang,Maoyi Huang,&Dan Li.(2020).Where are white roofs more effective in cooling the surface?.Geophysical Research Letters. |
MLA | Linying Wang,et al."Where are white roofs more effective in cooling the surface?".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论