Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095678 |
Urbanization amplifies nighttime heat stress on warmer days over the US | |
Chandan Sarangi; Yun Qian; Jianfeng Li; L. Ruby Leung; TC Chakraborty; Ying Liu | |
2021-12-09 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | The impact of heat on human health is well-recognized, with excess heat stress in urban areas (urban heat stress intensity, UHSI) adversely affecting rapidly growing urban populations. However, the physical associations of UHSI with urban heat island (UHI), urban-induced change in moisture (UQI) and background temperature are not well understood. Multi-year convection-permitting simulations over the US show that UHI effect peaks during nighttime (2-5 oC) but maximum UQI occurs in daytime (0.01-2 g kg-1 ), resulting in competing effects on UHSI. UHI dynamics dominate the diurnal variations in UHSI with intensified urban-induced human discomfort during nighttime (3-5 hours/day). UHSI is very sensitive to the background temperature, especially over the southeastern US, with distinct nightime UHSI amplification of ∼0.5 hours day-1 per degree rise in the background temperature. Spatial variability of UHSI is also dominated by the UHI with possible constrains from background moisture availability. |
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/342994 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Chandan Sarangi,Yun Qian,Jianfeng Li,et al. Urbanization amplifies nighttime heat stress on warmer days over the US[J]. Geophysical Research Letters,2021. |
APA | Chandan Sarangi,Yun Qian,Jianfeng Li,L. Ruby Leung,TC Chakraborty,&Ying Liu.(2021).Urbanization amplifies nighttime heat stress on warmer days over the US.Geophysical Research Letters. |
MLA | Chandan Sarangi,et al."Urbanization amplifies nighttime heat stress on warmer days over the US".Geophysical Research Letters (2021). |
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