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Article Title :

Impact of LULC Changes on LST in Rajshahi District of Bangladesh: A Remote Sensing Approach

3 (2019)

1

11-23

Urbanization , Remote Sensing , Landsat , LST , LULC

Crossref citations: 11
Views: 179
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Cross Referance

Urbanization has been contributing more in global climate warming, with more than 50% of the population living in cities. Rapid population growth and change in land use / land cover (LULC) are closely linked. The transformation of LULC due to rapid urban expansion significantly affects the functions of biodiversity and ecosystems, as well as local and regional climates. Improper planning and uncontrolled management of LULC changes profoundly contribute to the rise of urban land surface temperature (LST). This study evaluates the impact of LULC changes on LST for 1997, 2007 and 2017 in the Rajshahi district (Bangladesh) using multi-temporal and multi-spectral Landsat 8 OLI and Landsat 5 TM satellite data sets. The analysis of LULC changes exposed a remarkable increase in the built-up areas and a significant decrease in the vegetation and agricultural land. The built-up area was increased almost double in last 20 years in the study area. The distribution of changes in LST shows that built-up areas recorded the highest temperature followed by bare land, vegetation and agricultural land and water bodies. The LULC-LST profiles also revealed the highest temperature in built-up areas and the lowest temperature in water bodies. In the last 20 years, LST was increased about 13ºC. The study demonstrates decrease in vegetation cover and increase in non-evaporating surfaces with significantly increases the surface temperature in the study area. Remote-sensing techniques were found one of the suitable techniques for rapid analysis of urban expansions and to identify the impact of urbanization on LST.

The built-up area was increased almost double in the last 20 years.

In the last two decades, 612 km2 vegetated area was converted to urban built-up areas.

LST records higher in urban areas than the vegetation.

LST shows an increasing trend in urban areas.

The methodology can be useful for rapid assessments of LST in urban area using remote sensing techniques.

8.

BBS [Bangladesh Bureau of Statistics], District Statistics 2011, Rajshahi. Ministry of Planning Government of The People's Republic of Bangladesh.

9.

Celik, B., Kaya, S., Alganci, U. and Seker, D. Z., 2019. Assessment of the relationship between land use/cover changes and land surface temperatures: A case study of thermal remote sensing. FEB-Fresenius Environmental Bulletin, 3, 541.

20.

Hussain, M., Alak, P. and Azmz, I., 2016. Spatio-temporal analysis of land use and land cover changes in Chittagong city corporation, Bangladesh. Int. J. Adv. Remote Sens. GIS Geogr, 4, 56-72.

21.

Kafy, A. A., Faisal, A. A., Khan, H. A. H. and Sheel, P. K., 2018. Exploring the association of surface water body change and rapid urbanization in Rajshahi City Corporation (RCC) area using RS and GIS. Paper presented at the 1st National Conference on Water Resources Engineering (NCWRE 2018), Chittagong, Bangladesh.

23.

Kafy, A. A., Rahman, M. S. and Ferdous, L., 2017. Exploring The Association of Land Cover Change And Landslides In The Chittagong Hill Tracts (CHT): A Remote Sensing Perspective.

24.

Kafy, A., Hossain, M., Prince, A. A. N., Kawshar, M., Shamim , M. A., Das, P. and Noyon, M. E. K., 2019b. Estimation of Land Use Change to Identify Urban Heat Island Effect on Climate change: A Remote Sensing Based Approach. Paper presented at the International Conference on Climate Change (ICCC-2019), Dhaka, Bangladesh.

31.

Mallick, J., Kant, Y., and Bharath, B., 2008. Estimation of land surface temperature over Delhi using Landsat-7 ETM+. J. Ind. Geophys. Union, 12(3), 131-140.

41.

Rajshahi Development Authority, 2008. Working paper on Existning Landuse, Demographic and Transport (revised). M. C. A. Development Design Consultants Limited 47, Dhaka-1212 (Ed.). Government of The People’s Republic Of Bangladesh Ministry of Housing and Public Works.

46.

Speth, J. G., 2005. Global Environmental Challenges: Transitions to a Sustainable World: Orient Blackswan.

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