alexa Optimal Satellite Sensor Selection Utilized to Monitor the Impact of Urban Sprawl on the Thermal Environment in Doha City, Qatar
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
Open Access

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Research Article

Optimal Satellite Sensor Selection Utilized to Monitor the Impact of Urban Sprawl on the Thermal Environment in Doha City, Qatar

Al Kuwari NY1, Ahmed S2* and Kaiser MF3
1Humanities Department, College of Arts and Science, Qatar University, Qatar
2Physics Department, Faculty of Science, Suez Canal University, El Arish, Egypt
3Geology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
Corresponding Author : Samah Ahmed
Physics Department, Faculty of Science, Suez Canal University, El Arish, Egypt
Tel: +20 64 3200395
E-mail: [email protected]
Received: November 22, 2015; Accepted: January 19, 2016; Published: January 22, 2016
Citation: Al Kuwari NY, Ahmed S, Kaiser MF (2016) Optimal Satellite Sensor Selection Utilized to Monitor the Impact of Urban Sprawl on the Thermal Environment in Doha City, Qatar. J Earth Sci Clim Change. 7:326. doi:10.4172/2157-7617.1000326
Copyright: © 2016 Al Kuwari NY, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

 

Abstract

In the present study, the most appropriate Landsat and ASTER Image spatial and spectral resolutions were selected to extract thermal infrared data in Doha City, Qatar from 1990-2015. Results indicated Urban Heat Island (UHI) calculated from Landsat sensor data was more consistent with ground truthed temperatures. Landsat TM thermal infrared data with low spatial resolution (60-120 m) was more appropriate for large-scale thermal studies, but was not suitable to assess complex urban thermal environments and establish Land Surface Temperatures (LSTs) for individual buildings. However, ASTER sensor, with a Thermal Infrared (TIR) subsystem of 90 m spatial resolution, showed more accurate determination of thermal patterns and LSTs. Landsat data revealed relatively high temperatures, which exhibited increased congruence with ground truthed measures. In Doha City, LST showed an increased trend from 1990 to 2015; low in 1990, moderate in 2000, to very high in 2015. Furthermore, our results confirmed accelerated urban sprawl during 1990-2015. The evaluated areas increased from 80 km2 in 1990 to 179 km2 in 2015. A strong positive relationship was observed between UHI and urban area intensity. Urban planning absence significantly affected the rural environment. Urbanized areas exhibited high thermal conductivity and radiation heat budgets, characterized by increased atmospheric and surface temperatures compared to surrounding rural areas. Therefore, rapid urbanization rates must undergo proper planning and management regimes to insure positive impacts on the local climate and environment.

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