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

Ahmed, Bayes, Kamruzzaman, Md., Zhu, Xuan, Rahman, Md. Shahinoor, & Choi, Keechoo (2013) Simulating land cover changes and their impacts on land surface temperature in Dhaka, Bangladesh. Remote Sensing, 5(11), pp. 5969-5998.

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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.

Impact and interest:

21 citations in Scopus
18 citations in Web of Science®
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ID Code: 64565
Item Type: Journal Article
Refereed: Yes
Keywords: Land Cover Change, Land Surface Temperature, Urban Heat Island Effect, NDVI, Artificial Neural Network, Markov Chain, Dhaka
DOI: 10.3390/rs5115969
ISSN: 2072-4292
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Climate Change Processes (040104)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > GEOMATIC ENGINEERING (090900) > Photogrammetry and Remote Sensing (090905)
Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > URBAN AND REGIONAL PLANNING (120500) > Land Use and Environmental Planning (120504)
Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > URBAN AND REGIONAL PLANNING (120500) > Urban Analysis and Development (120507)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 by the authors; licensee MDPI, Basel, Switzerland.
Copyright Statement: 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/).
Deposited On: 17 Nov 2013 23:11
Last Modified: 20 Nov 2013 07:09

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