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      https://www.ias.ac.in/article/fulltext/jess/129/0074

    • Keywords

       

      Land-use land-cover (LULC); land surface temperature (LST); urban heat island (UHI); Landsat; built-up clusters; India

    • Abstract

       

      Rapid urban expansion and associated land-use land-cover (LULC) change in India have emerged as a serious environmental threat that accelerates the impacts of urban heat island intensity (UHII). Three independent investigations have been conducted in this study using a series of Landsat data. The objectives of this work are: (1) To predict the near-future LULC scenario using an integrated model; (2) To understand the connection between band mean for particular LULC class with LST; (3) To analyze the temporal relationship between different types of built-up clusters and LST. The LULC and LST maps reveal that LST increases from $27.01^{0}$ to $33.86^{0}\rm{C}$, whereas built-up areas rise from 6.93% to 27.10% during 1988–2018, respectively. We observed that the near-future LULC scenario of KMA shows a huge expansion of built-up areas paid by decreased vegetation and open spaces. A clear significant correlation has been found between band mean and LST in all three Landsat sensors with the $R^{2} = 0.84$; $p$<$0.02$ for Landsat 5 TM, $R^{2} = 0.91$ and $0.99$; $p$<$0.01$ and $0.00$ for Landsat $7 \rm{ETM+}$, and $R^{2} = 0.88$; $p$<$0.01$ for Landsat 8 OLI in connection to our second objective. However, no agreement has been found between different built-up clusters and LST over 30 years of observation. For the first time, this study established the interconnectivity between bands of Landsat sensors and LST. The temporal relationship between different built-up clusters and LST have reviled also for the first time. Beside this, the rising rate of built-up areas was observed by the integrated model. Such alarming condition demands immediate attention to sustainable, and scientific land use regulations under new urbanism policy.

    • Author Affiliations

       

      PRASENJIT SAHA1 SUBHAJIT BANDOPADHYAY2 CHANDAN KUMAR3 CHANDANA MITRA4

      1. National Atlas and Thematic Mapping Organization (NATMO), Kolkata, India.
      2. Laboratory of Bioclimatology, Department of Ecology and Environment Protection, Faculty of Environmental Engineering and Spatial Management, Poznan University of Life Sciences, Poznan, Poland.
      3. Department of Geological and Mining Engineering and Sciences, Michigan Technological University, Houghton, MI, USA.
      4. Department of Geoscience, Auburn University, Auburn, AL, USA.
    • Dates

       
  • Journal of Earth System Science | News

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