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Appraisal of Urban Heat Island over Gujranwala and its Environmental Impact Assessment using Satellite Imagery (1995-2016)

Author

Listed:
  • Syeda Areeba Gillani

    (Remote Sensing group, Department of Space Science, University of the Punjab, Quaid-e-Azam Campus, Lahore, Punjab, Pakistan.)

  • Saif ul Rehman

    (Department of Geography, Government College University Lahore.)

Abstract

Rapid urbanization and concretization are the main sources of formation and existence of Urban Heat Island (UHI). Due to high concentration of pollutants in urban environments, the residents are exposed to unexpected health issues. This study aims at delineating the temporal variations in the spatial extent of UHI over Gujranwala using Landsat thermal imagery. It also aims at determining the variations in pollutant concentration in the atmosphere due to vehicle’s tailpipe emissions and fossil fuel burning by industrial plants. We used various indices e.g., NDVI, NDBI, NDWI and land surface temperature calculations to investigate spatiotemporal variations in urban growth patterns and their impacts on the UHI. The results show that the UHI enlarged in all direction specially in the north west during the study period which is similar to urban growth trends. There also exist positive correlation between industrial and vehicle’s discharge with pollutant’s concentration in atmosphere. Remote sensing tools proved elegant in trend mapping and analysis.

Suggested Citation

  • Syeda Areeba Gillani & Saif ul Rehman, 2019. "Appraisal of Urban Heat Island over Gujranwala and its Environmental Impact Assessment using Satellite Imagery (1995-2016)," International Journal of Innovations in Science & Technology, 50sea, vol. 1(1), pages 1-14, January.
    • Handle: RePEc:abq:ijist1:v:1:y:2019:i:1:p:1-14
    DOI: 10.33411/IJIST/2019010101
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    References listed on IDEAS

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    1. Syed Muhammad Hassan Raza & Syed Amer Mahmood, 2018. "Estimation of Net Rice Production through Improved CASA Model by Addition of Soil Suitability Constant (ħα)," Sustainability, MDPI, vol. 10(6), pages 1-21, May.
    2. Ram Babu Singh & Aakriti Grover & Jinyan Zhan, 2014. "Inter-Seasonal Variations of Surface Temperature in the Urbanized Environment of Delhi Using Landsat Thermal Data," Energies, MDPI, vol. 7(3), pages 1-18, March.
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    More about this item

    Keywords

    Urban heat island; Normalized Difference Vegetation Index (NDVI); Normalized Difference Built-up Index (NDBI); Normalized Difference Water Index (NDWI); Land Surface Temperature (LST);
    All these keywords.

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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