Rainfall variability and the trends of wet and dry periods in Bangladesh

Spatial patterns of annual and seasonal rainfall trends of Bangladesh over the time period 1958-2007 has been assessed using rainfall data recorded at 17 stations distributed over the country. Mann-Kendall trend test and the Sen's slope method are used to detect the significance and the magnitu...

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Main Author: Shahid, S.
Format: Article
Published: Royal Meteorological Society 2010
Subjects:
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author Shahid, S.
author_facet Shahid, S.
author_sort Shahid, S.
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description Spatial patterns of annual and seasonal rainfall trends of Bangladesh over the time period 1958-2007 has been assessed using rainfall data recorded at 17 stations distributed over the country. Mann-Kendall trend test and the Sen's slope method are used to detect the significance and the magnitude of rainfall change, respectively. Historical dry and wet months are identified by using standardised precipitation index method and their trends are analysed to assess the possible change in wet and dry events in Bangladesh. The result shows a significant increase in the average annual and pre-monsoon rainfall of Bangladesh. The number of wet months is found to increase and the dry months to decrease in most parts of the country. Seasonal analysis of wet and dry months shows a significant decrease of dry months in monsoon and pre-monsoon. Copyright (C) 2009 Royal Meteorological Society
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spelling um.eprints-118602015-01-12T04:00:09Z http://eprints.um.edu.my/11860/ Rainfall variability and the trends of wet and dry periods in Bangladesh Shahid, S. Q Science (General) Spatial patterns of annual and seasonal rainfall trends of Bangladesh over the time period 1958-2007 has been assessed using rainfall data recorded at 17 stations distributed over the country. Mann-Kendall trend test and the Sen's slope method are used to detect the significance and the magnitude of rainfall change, respectively. Historical dry and wet months are identified by using standardised precipitation index method and their trends are analysed to assess the possible change in wet and dry events in Bangladesh. The result shows a significant increase in the average annual and pre-monsoon rainfall of Bangladesh. The number of wet months is found to increase and the dry months to decrease in most parts of the country. Seasonal analysis of wet and dry months shows a significant decrease of dry months in monsoon and pre-monsoon. Copyright (C) 2009 Royal Meteorological Society Royal Meteorological Society 2010 Article PeerReviewed Shahid, S. (2010) Rainfall variability and the trends of wet and dry periods in Bangladesh. International Journal of Climatology, 30 (15). pp. 2299-2313.
spellingShingle Q Science (General)
Shahid, S.
Rainfall variability and the trends of wet and dry periods in Bangladesh
title Rainfall variability and the trends of wet and dry periods in Bangladesh
title_full Rainfall variability and the trends of wet and dry periods in Bangladesh
title_fullStr Rainfall variability and the trends of wet and dry periods in Bangladesh
title_full_unstemmed Rainfall variability and the trends of wet and dry periods in Bangladesh
title_short Rainfall variability and the trends of wet and dry periods in Bangladesh
title_sort rainfall variability and the trends of wet and dry periods in bangladesh
topic Q Science (General)
work_keys_str_mv AT shahids rainfallvariabilityandthetrendsofwetanddryperiodsinbangladesh