Ziter_et_al_2019

Ziter CD, Pedersen EJ, Kucharik CJ, Turner MG (2019) Scale-dependent interactions between tree canopy cover and impervious surfaces reduce daytime urban heat during summer. Proc Natl Acad Sci USA 116:7575–7580. https://doi.org/10.1073/pnas.1817561116

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Keywords: Urban heat island, ES, urban forest, temperature mitigation

Urban air temperature relies on fine-scale heterogeneity of urban areas (e.g. tree canopies covering pavement). Air temperature at the intraurban fine-scale is sparse. Air temperature decreased nonlinearly with increasing tree canopy cover and effects were larger at broader scales. Air temperature increased linearly with increasing impervious cover. Increasing canopy cover was more effective at reducing temperature than decreasing impervious cover. Effect was more pronounced during the day. Reducing impervious surfaces decreases temperatures at night – very important.