School of City and Regional Planning, College of Architecture, Georgia Institute of Technology , Atlanta, Georgia 30332, USA.
Environ Sci Technol. 2013 Jul 16;47(14):7780-6. doi: 10.1021/es304352e. Epub 2013 Jun 27.
This study explores the potential effectiveness of metropolitan land cover change as a climate change adaptation strategy for managing rising temperatures in a large and rapidly warming metropolitan region of the United States. Through the integration of a mesoscale meteorological model with estimated land cover data for the Atlanta, Georgia region in 2010, this study quantifies the influence of extensive land cover change at the periphery of a large metropolitan region on temperature within the city center. The first study to directly model a metropolitan scale heat transfer mechanism, we find both enhanced tree canopy and impervious cover in the suburban zones of the Atlanta region to produce statistically significant cooling and warming effects in the urban core. Based on these findings, we conclude that urban heat island management both within and beyond the central developed core of large cities may provide an effective climate change adaptation strategy for large metropolitan regions.
本研究探讨了城市土地覆盖变化作为一种气候变化适应策略的潜在有效性，以应对美国一个大型且快速变暖的大都市区不断上升的温度。通过将中尺度气象模型与 2010 年佐治亚州亚特兰大地区的估计土地覆盖数据相结合，本研究量化了大都市区域周边广泛的土地覆盖变化对市中心温度的影响。作为首次直接模拟大都市尺度热传递机制的研究，我们发现亚特兰大地区郊区的树木树冠和不透水面的增加都会对城市核心区产生显著的降温或升温效应。基于这些发现，我们得出结论，城市热岛管理不仅在大城市中心开发区域内部，而且在其外部都可能为大型大都市区提供一种有效的气候变化适应策略。
