ISSN: 2157-7617

Journal of Earth Science & Climatic Change
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  • Research Article   
  • J Earth Sci Clim Change 2016, Vol 7(1): 325
  • DOI: 10.4172/2157-7617.1000325

Evaluation of Land Cover Changes at the Coast of Sindh through Successive Landsat Imageries

Ziaur Rehman*, Farheen Khanum and Syed Jamil Hasan Kazmi
Department of Geography, University of Karachi, Karachi 75270, Pakistan
*Corresponding Author : Ziaur Rehman, Department of Geography, University of Karachi, Karachi 75270, Pakistan, Tel: +92(0)20-9926-1300-7, Email: zia_rockies@yahoo.com

Received Date: Oct 23, 2015 / Accepted Date: Dec 11, 2015 / Published Date: Dec 14, 2015

Abstract

Satellite remote sensing is the most readily available and updated data source for detection, quantification, and mapping of Land-use/Land Cover (LULC) patterns and changes because of its repetitive data acquisition, digital format suitable for computer processing, and accurate geo-referencing procedures. The objective of the study is to analyze the land cover changes and to examine the Land Surface Temperature (LST) with other climatic effects on the Sindh coastal region. Satellite images of Landsat-7 ETM+, Landsat-5 TM and Landsat-8 OLI/TIRS were used in the study, acquired on March 08, 2000, November 20, 2009 and April 08, 2014 respectively. The land cover classes selected for the study are vegetation, mudflat, built-up/vacant land, shallow water and deep water. Maximum likelihood supervised classification and LST techniques were used in the study. The results of the classification mainly consist of land cover classes for 2000, 2009 and 2014, respectively. The land cover in the study area is under the serious threat of climate change. The major cause of ecological, environmental and land use degradation of Indus delta is reduction in fresh water flow, sea water intrusion and natural disasters. Sindh coastline is widely exposed to the disasters like heavy rains, floods, frequent storms and cyclones. This coast faces cyclones approximately every year. Eastern part of Sindh Province is at high risk of tropical cyclones. It is a huge threat to the land covers, biodiversity and human population.

Keywords: Coastal climate change; GIS; Land surface temperature; Maximum likelihood supervised classification; Natural disaster; Remote sensing; Sea water intrusion

Citation: Rehman Z, Khanum F, Kazmi SJH (2016) Evaluation of Land Cover Changes at the Coast of Sindh through Successive Landsat Imageries. 7: 325. Doi: 10.4172/2157-7617.1000325

Copyright: © 2016 Rehman Zu, 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.

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