Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh

Evaluation of drought is essential and useful to eradicate climate change impact. Therefore, this study aims to explore the spatiotemporal drought intensity trend in seven climatic zones of Bangladesh during 1979–2019. Mann-Kendall trend test and Standardized Precipitation Evapotranspiration Index (...

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Autores principales:	Md. Naimur Rahman, Md. Rakib Hasan Rony, Farhana Akter Jannat
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Drought Trend SPEI Climatic zone Bangladesh Science (General) Q1-390 Social sciences (General) H1-99
Acceso en línea:	https://doaj.org/article/3979e175d6544a988529860a6819534a
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spelling	oai:doaj.org-article:3979e175d6544a988529860a6819534a2021-12-02T05:02:16ZSpatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh2405-844010.1016/j.heliyon.2021.e08249https://doaj.org/article/3979e175d6544a988529860a6819534a2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2405844021023525https://doaj.org/toc/2405-8440Evaluation of drought is essential and useful to eradicate climate change impact. Therefore, this study aims to explore the spatiotemporal drought intensity trend in seven climatic zones of Bangladesh during 1979–2019. Mann-Kendall trend test and Standardized Precipitation Evapotranspiration Index (SPEI) are employed to identify drought trend and status, whereas spatial visualization is checked through Inverse Distance Weighting Interpolation. The study's findings emphasize the decreasing rate of SPEI in all climatic zones except the south-eastern zone, which is > 0.0065, >0.007, >0.0128, and >-0.0001 for SPEI 09 12, 24, and 06, respectively. Furthermore, the northern region has the highest value in SPEI in some periods with the highest decrease rate in SPEI 06, SPEI 09, SPEI 12 demonstrates greater drought responsibilities. The Barisal (.>-3.75), Rangpur (>-3.65), Dinajpur ((>-3.00), Rajshahi (>-4.35), Bogra (>-4.50), Ishurdi (>-3.45), Faridpur (>-4.30) and Madaripur (>-2.10) found under extreme drought-prone climatic zone. Thus, the study recommends taking initiatives and management for water resources to adopt mitigation planning for drought-prone climatic zones.Md. Naimur RahmanMd. Rakib Hasan RonyFarhana Akter JannatElsevierarticleDroughtTrendSPEIClimatic zoneBangladeshScience (General)Q1-390Social sciences (General)H1-99ENHeliyon, Vol 7, Iss 11, Pp e08249- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Drought Trend SPEI Climatic zone Bangladesh Science (General) Q1-390 Social sciences (General) H1-99
spellingShingle	Drought Trend SPEI Climatic zone Bangladesh Science (General) Q1-390 Social sciences (General) H1-99 Md. Naimur Rahman Md. Rakib Hasan Rony Farhana Akter Jannat Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh
description	Evaluation of drought is essential and useful to eradicate climate change impact. Therefore, this study aims to explore the spatiotemporal drought intensity trend in seven climatic zones of Bangladesh during 1979–2019. Mann-Kendall trend test and Standardized Precipitation Evapotranspiration Index (SPEI) are employed to identify drought trend and status, whereas spatial visualization is checked through Inverse Distance Weighting Interpolation. The study's findings emphasize the decreasing rate of SPEI in all climatic zones except the south-eastern zone, which is > 0.0065, >0.007, >0.0128, and >-0.0001 for SPEI 09 12, 24, and 06, respectively. Furthermore, the northern region has the highest value in SPEI in some periods with the highest decrease rate in SPEI 06, SPEI 09, SPEI 12 demonstrates greater drought responsibilities. The Barisal (.>-3.75), Rangpur (>-3.65), Dinajpur ((>-3.00), Rajshahi (>-4.35), Bogra (>-4.50), Ishurdi (>-3.45), Faridpur (>-4.30) and Madaripur (>-2.10) found under extreme drought-prone climatic zone. Thus, the study recommends taking initiatives and management for water resources to adopt mitigation planning for drought-prone climatic zones.
format	article
author	Md. Naimur Rahman Md. Rakib Hasan Rony Farhana Akter Jannat
author_facet	Md. Naimur Rahman Md. Rakib Hasan Rony Farhana Akter Jannat
author_sort	Md. Naimur Rahman
title	Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh
title_short	Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh
title_full	Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh
title_fullStr	Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh
title_full_unstemmed	Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh
title_sort	spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of bangladesh
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/3979e175d6544a988529860a6819534a
work_keys_str_mv	AT mdnaimurrahman spatiotemporalevaluationofdroughttrendduring19792019insevenclimaticzonesofbangladesh AT mdrakibhasanrony spatiotemporalevaluationofdroughttrendduring19792019insevenclimaticzonesofbangladesh AT farhanaakterjannat spatiotemporalevaluationofdroughttrendduring19792019insevenclimaticzonesofbangladesh
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Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh

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