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Simulating land cover changes and their impacts on land surface temperature in Dhaka, Bangladesh

Ahmed, B; Kamruzzaman, M; Zhu, X; Rahman, M; Choi, K; (2013) Simulating land cover changes and their impacts on land surface temperature in Dhaka, Bangladesh. Remote Sensing , 5 (11) 5969 - 5998. 10.3390/rs5115969. Green open access

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Abstract

Despite research that has been conducted elsewhere, little is known, to-date, about land cover dynamics and their impacts on land surface temperature (LST) in fast growing mega cities of developing countries. Landsat satellite images of 1989, 1999, and 2009 of Dhaka Metropolitan (DMP) area were used for analysis. This study first identified patterns of land cover changes between the periods and investigated their impacts on LST; second, applied artificial neural network to simulate land cover changes for 2019 and 2029; and finally, estimated their impacts on LST in respective periods. Simulation results show that if the current trend continues, 56% and 87% of the DMP area will likely to experience temperatures in the range of greater than or equal to 30 °C in 2019 and 2029, respectively. The findings possess a major challenge for urban planners working in similar contexts. However, the technique presented in this paper would help them to quantify the impacts of different scenarios (e.g., vegetation loss to accommodate urban growth) on LST and consequently to devise appropriate policy measures.

Type: Article
Title: Simulating land cover changes and their impacts on land surface temperature in Dhaka, Bangladesh
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/rs5115969
Publisher version: http://dx.doi.org/10.3390/rs5115969
Language: English
Additional information: © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Inst for Risk and Disaster Reduction
URI: https://discovery.ucl.ac.uk/id/eprint/1418948
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