An Indicator of Climate Change in the South West Region of Bangladesh

By Sara Nowreen, Sonia Binte Murshed, A.K.M Saiful Islam, Mohammad Alfi Hasan and Tarun Kumar Sarker.

Published by The International Journal of Climate Change: Impacts and Responses

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Article: Print $US10.00
Article: Electronic $US5.00

Since the last decade, the South West (SW) region of Bangladesh has been found to be already engaged in practicing floating garden, cage culture, crab culture, etc., as the adaptation strategies to overcome the adverse effects of climate change (CC). Considering both, without CC (1961-1990) and with CC (1981-2010), this paper analyzes the trends of spatial, temporal, and extreme event indices for both temperature and rainfall based on fifty years (1961-2010) of data. Data have been collected from five Bangladesh Meteorological Departments distributed over the SW region and Rclimdex software is used for quality control and calculation of indices of rainfall as well as of temperature. During the monsoon, rainfall has been found with higher variability in magnitude as well as in spatial distribution. Over the last decade, both the highest monthly maximum 1-day rainfall and the highest monthly maximum consecutive 5-day rainfall were observed at Jessor, where water logging is a severe problem. Year to year variation of maximum summer temperature is increasing whereas minimum winter temperature is found to be decreasing. Additionally, the decreasing trends of consecutive wet days indicate that duration of the extreme rainfalls have become shorter. In the case of daily temperature, the winter trend has been drastically changed from increasing to decreasing. But in the case of other seasons, increasing temperature trends are found to be increasing at a faster rate. This study identifies the locations that are already vulnerable to changing condition and will be further exacerbated in the upcoming decades.

Keywords: Climatic variability of Extreme indices, Temporal and Spatial, Probability Distribution Frequency Precipitation of South West Region, Temperature of South West Region

The International Journal of Climate Change: Impacts and Responses, Volume 4, Issue 3, pp.47-60. Article: Print (Spiral Bound). Article: Electronic (PDF File; 889.920KB).

Sara Nowreen

Lecturer, Institute of Water and Flood Management, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh

Sara got enrolled as a PhD student at IWFM, BUET where she is currently serving as a lecturer. Currently she is strongly engaged in a collaborative research project, namely, "High-resolution Regional Climate Change Information for Bangladesh to inform Impacts Assessments, Vulnerability indicators and Adaptation Policies". Recently she completed working as a visiting scientist of Met Office, London from August - September,2012. She already published one international journal and one international conference paper and has got three more papers under review. She was awarded with prestigious Bangabandhu fellowship during her PhD and South Asian Water Scholarship (SAWA) during her MSc. She is interested to work in Climate Change issues related to coastal zone management and IWRM.

Sonia Binte Murshed

Lecturer, IWFM, BUET, Dhaka, Bangladesh

Sonia Binte Murshed is working as Assistant Professor at the Institute of Water and Flood Management (IWFM) of Bangladesh University of Engineering and Technology (BUET).She did her M.Sc. in Water Resources Development (WRD) and B.Sc. in Civil Engineering from BUET. She received SAWA (South Asian Water) fellowship during her M.Sc. Her research interests include Hydroclimatology, Hydrology, Integrated Water Resources Management, Disaster Management and Urban Drainage System. She is also a core member of Modeling and Scenario Development Team of Climate Change Study Cell at BUET.

Dr. A.K.M Saiful Islam

Associate Professor, IWFM, BUET, Dhaka, Bangladesh

Dr. Saiful Islam is currently working as associate professor at the Institute of Water and Flood management (IWFM) of Bangladesh University of Engineering and Technology (BUET). Dr. Islam has compeleted his Ph.D. in Civil Engineering from Drexel University, USA in 2004. His research interest is on Hydrology and Climate Change , Remote Sensing and GIS Application in Water Management, Hydro-Informatics and web based modeling, Numerical Weather Forecasting, Flood and Drainage Modeling. He has published more than 30 articles in peer reviews journals and proceeding of the international conferences. He is teaching a number of graduate courses at BUET on Climate Change, Hydrologic Statistics, RS & GIS, Hydroinformatics.

Mohammad Alfi Hasan

Research Assistant, IWFM, BUET, Dhaka, Bangladesh

Tarun Kumar Sarker

Research Assistant, IWFM, BUET, Dhaka, Bangladesh


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