Positive or Negative? Urbanization-Induced Variations in Diurnal Skin-Surface Temperature Range Detected Using Satellite Data

Fan Huang, Wenfeng Zhan, Zhihua Wang, Kaicun Wang, Jing M. Chen, Yongxue Liu, Jiameng Lai, Weimin Ju

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Diurnal temperature range (DTR) is an important indicator for assessing the local climate change due to urbanization. Studies that focused on surface air temperature (SAT) have reported decreased DTRSAT in urban areas. However, this urbanization-induced effect becomes more complex with regard to land skin-surface temperature (LST), which is highly localized and extremely sensitive to land surface properties. We thus investigated the urban-rural DTRLST difference (ΔDTRLST) over 354 cities across China using satellite-retrieved LSTs within 2008−2013. Our major findings include the following: (1) urban areas experience increased (decreased) DTRLST compared with rural areas on the annual average for the majority of cities located in southern (northern) China; (2) the ΔDTRLST is mostly positive in warm months but negative in cold months. It generally becomes more positive from January to August and becomes more negative afterward; and (3) the ΔDTRLST is positively related to the daytime surface urban heat island intensity; it is yet negatively correlated with the urban-rural difference in vegetation abundance. We consider these insights valuable for in-depth understanding urban thermal environment and will likely help improve urban planning.

Original languageEnglish (US)
Pages (from-to)13,229-13,244
JournalJournal of Geophysical Research: Atmospheres
Volume122
Issue number24
DOIs
StatePublished - Dec 27 2017

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skin temperature
diurnal variation
urbanization
urban areas
surface temperature
remote sensing
satellite data
skin
Skin
urban area
Satellites
urban planning
China
heat island
rural areas
land surface
rural area
air temperature
Urban planning
heat islands

Keywords

  • diurnal temperature range (DTR)
  • land skin-surface temperature (LST)
  • local climate change
  • urbanization

ASJC Scopus subject areas

  • Geophysics
  • Oceanography
  • Forestry
  • Aquatic Science
  • Ecology
  • Condensed Matter Physics
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Materials Chemistry
  • Palaeontology

Cite this

Positive or Negative? Urbanization-Induced Variations in Diurnal Skin-Surface Temperature Range Detected Using Satellite Data. / Huang, Fan; Zhan, Wenfeng; Wang, Zhihua; Wang, Kaicun; Chen, Jing M.; Liu, Yongxue; Lai, Jiameng; Ju, Weimin.

In: Journal of Geophysical Research: Atmospheres, Vol. 122, No. 24, 27.12.2017, p. 13,229-13,244.

Research output: Contribution to journalArticle

Huang, Fan ; Zhan, Wenfeng ; Wang, Zhihua ; Wang, Kaicun ; Chen, Jing M. ; Liu, Yongxue ; Lai, Jiameng ; Ju, Weimin. / Positive or Negative? Urbanization-Induced Variations in Diurnal Skin-Surface Temperature Range Detected Using Satellite Data. In: Journal of Geophysical Research: Atmospheres. 2017 ; Vol. 122, No. 24. pp. 13,229-13,244.
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