Indian Forum for Water Adroit

Greening in rural areas increases the surface urban heat island intensity

Pankaj Dey

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  • Institute : Indian Institute of Science
  • Programming language : MATLAB, R
Surface urban heat island (SUHI) refers to higher land surface temperature (LST) in urban than in rural areas. The increased SUHI intensity (SUHII, urban LST minus rural) was mainly attributed to increased anthropogenic heat emission and built‐up areas, and reductions in vegetation in urban areas in the literature. However, this study showed that the increased vegetation (i.e. greening) in rural areas was a significant and widespread driver for the increased daytime SUHII around the world during 2001–2017. The implication of this study is that urban LST may increase much faster than rural LST in future global warming.