Staff View: Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh

Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh

This research investigates spatiotemporal variations in ETo and the controlling factor of those variations using the modified Mann-Kendall test, empirical Bayesian kriging model, Morlet wavelet analysis (MWA), and cross-wavelet transform (XWT) model relying on daily climate data sets obtained from 1...

Full description

Saved in:

Bibliographic Details
Main Authors:	Jerin, Jannatun Nahar, Touhidul Islam, H. M., Md. Towfiqul Islam, Abu Reza, Shahid, Shamsuddin, Hu, Zhenghua, Badhan, Mehnaz Abbasi, Chu, Ronghao, Elbeltagi, Ahmed
Format:	Article
Published:	Springer-Verlag GmbH 2021
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/94090/ http://dx.doi.org/10.1007/s00704-021-03566-4
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.utm.94090
record_format	eprints
spelling	my.utm.940902022-02-28T13:31:45Z http://eprints.utm.my/id/eprint/94090/ Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh Jerin, Jannatun Nahar Touhidul Islam, H. M. Md. Towfiqul Islam, Abu Reza Shahid, Shamsuddin Hu, Zhenghua Badhan, Mehnaz Abbasi Chu, Ronghao Elbeltagi, Ahmed TA Engineering (General). Civil engineering (General) This research investigates spatiotemporal variations in ETo and the controlling factor of those variations using the modified Mann-Kendall test, empirical Bayesian kriging model, Morlet wavelet analysis (MWA), and cross-wavelet transform (XWT) model relying on daily climate data sets obtained from 18 meteorological stations for the period 1980–2017. Additionally, the stepwise linear regression analysis and partial correlation coefficient (PCC) were employed to determine the variables driving the changes in ETo. The investigation exhibited a decline in annual for −1.19 mm year−1 and seasonal (−0.40 mm decade−1 during pre-monsoon, −0.47 mm decade−1 during post-monsoon, −0.50 mm decade−1 during winter) ETo, which indicates the existence of “evapotranspiration paradox” in Bangladesh, similar to many regions across the globe. The trend test depicted that despite the increase in mean temperature (MT), a noteworthy decrease in sunshine duration (SD), and wind speed (WS) are the main reasons for the reduction in ETo. Spatial analysis of ETo revealed the highest annual values in the southwest while the lowest in the northwest. Two cycles, 1–3 and 3–5 years were found significant in the annual and seasonal ETo. The outcomes revealed coherence among ETo with meteorological factors at different time-frequency bands, which is noteworthy. Stepwise regression and PCC showed that the impact of meteorological factors on ETo varies on the annual and seasonal scales where MT, RH, and SD are the major factors responsible for the variations of ETo in both annual and seasonal scales. These outcomes of the research can be advantageous for designing irrigation and management of sustainable water resources to mitigate climate change impacts as well as controlling anthropogenic activities. Springer-Verlag GmbH 2021-04 Article PeerReviewed Jerin, Jannatun Nahar and Touhidul Islam, H. M. and Md. Towfiqul Islam, Abu Reza and Shahid, Shamsuddin and Hu, Zhenghua and Badhan, Mehnaz Abbasi and Chu, Ronghao and Elbeltagi, Ahmed (2021) Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh. Theoretical and Applied Climatology, 144 (1-2). pp. 793-808. ISSN 0177-798X http://dx.doi.org/10.1007/s00704-021-03566-4 DOI:10.1007/s00704-021-03566-4
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Jerin, Jannatun Nahar Touhidul Islam, H. M. Md. Towfiqul Islam, Abu Reza Shahid, Shamsuddin Hu, Zhenghua Badhan, Mehnaz Abbasi Chu, Ronghao Elbeltagi, Ahmed Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh
description	This research investigates spatiotemporal variations in ETo and the controlling factor of those variations using the modified Mann-Kendall test, empirical Bayesian kriging model, Morlet wavelet analysis (MWA), and cross-wavelet transform (XWT) model relying on daily climate data sets obtained from 18 meteorological stations for the period 1980–2017. Additionally, the stepwise linear regression analysis and partial correlation coefficient (PCC) were employed to determine the variables driving the changes in ETo. The investigation exhibited a decline in annual for −1.19 mm year−1 and seasonal (−0.40 mm decade−1 during pre-monsoon, −0.47 mm decade−1 during post-monsoon, −0.50 mm decade−1 during winter) ETo, which indicates the existence of “evapotranspiration paradox” in Bangladesh, similar to many regions across the globe. The trend test depicted that despite the increase in mean temperature (MT), a noteworthy decrease in sunshine duration (SD), and wind speed (WS) are the main reasons for the reduction in ETo. Spatial analysis of ETo revealed the highest annual values in the southwest while the lowest in the northwest. Two cycles, 1–3 and 3–5 years were found significant in the annual and seasonal ETo. The outcomes revealed coherence among ETo with meteorological factors at different time-frequency bands, which is noteworthy. Stepwise regression and PCC showed that the impact of meteorological factors on ETo varies on the annual and seasonal scales where MT, RH, and SD are the major factors responsible for the variations of ETo in both annual and seasonal scales. These outcomes of the research can be advantageous for designing irrigation and management of sustainable water resources to mitigate climate change impacts as well as controlling anthropogenic activities.
format	Article
author	Jerin, Jannatun Nahar Touhidul Islam, H. M. Md. Towfiqul Islam, Abu Reza Shahid, Shamsuddin Hu, Zhenghua Badhan, Mehnaz Abbasi Chu, Ronghao Elbeltagi, Ahmed
author_facet	Jerin, Jannatun Nahar Touhidul Islam, H. M. Md. Towfiqul Islam, Abu Reza Shahid, Shamsuddin Hu, Zhenghua Badhan, Mehnaz Abbasi Chu, Ronghao Elbeltagi, Ahmed
author_sort	Jerin, Jannatun Nahar
title	Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh
title_short	Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh
title_full	Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh
title_fullStr	Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh
title_full_unstemmed	Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh
title_sort	spatiotemporal trends in reference evapotranspiration and its driving factors in bangladesh
publisher	Springer-Verlag GmbH
publishDate	2021
url	http://eprints.utm.my/id/eprint/94090/ http://dx.doi.org/10.1007/s00704-021-03566-4
_version_	1726791479507025920
score	13.211869

Spatiotemporal trends in reference evapotranspiration and its driving factors in Bangladesh

Similar Items