Spatial and temporal modeling of regional groundwater level in context of climate change

The accurate prediction of groundwater resources as the sole source of drinking and irrigation based agriculture in the northwestern part of Bangladesh is important for the sustainable use and management of this already stressed precious resource.Groundwater level data collected from 130 sites acros...

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Main Author:	Hassan, Ibrahim
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/50812/25/IbrahimHassanMFKA2015.pdf
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id	my-utm-ep.50812
record_format	uketd_dc
spelling	my-utm-ep.508122020-07-12T07:02:58Z Spatial and temporal modeling of regional groundwater level in context of climate change 2015-01 Hassan, Ibrahim TA Engineering (General). Civil engineering (General) The accurate prediction of groundwater resources as the sole source of drinking and irrigation based agriculture in the northwestern part of Bangladesh is important for the sustainable use and management of this already stressed precious resource.Groundwater level data collected from 130 sites across 25 Upazilas (sub-district) of three northwest districts of Bangladesh were used in this study to access the impacts of climate change on groundwater resources in the region. Several geostatistical and determistic interpolation methods as well as data mining techniques such as, Support Vector Machines (SVM) and Artificial Neural Network (ANN) were investigated for spatial and temporal modeling of groundwater level. The study revealed that co-kriging gives the best estimation of spatial distribution of water table when soil infiltration information is provided. On the other hand, Artificial Neural Network (ANN) was found to model groundwater table fluctuation more accurately compared to other data mining approaches. Therefore, ANN was used to project the changes in groundwater level under projected climate data obtained through statistical downscaling of global circulation model outputs. Groundwater drought situations during base year and under projected climate were investigated using the Cumulative Deficit approach in a geographical information system. The study revealed that groundwater scarcity in at least 27% of the study area will be an every year phenomenon in the region due to climate change. Analysis of climate change and groundwater hydrographs reveals that no appreciable change in precipitation, but increases in temperature as well as increase in groundwater extraction for irrigation in the dry season are the causes of groundwater scarcity in the region. 2015-01 Thesis http://eprints.utm.my/id/eprint/50812/ http://eprints.utm.my/id/eprint/50812/25/IbrahimHassanMFKA2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86804 masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Hassan, Ibrahim Spatial and temporal modeling of regional groundwater level in context of climate change
description	The accurate prediction of groundwater resources as the sole source of drinking and irrigation based agriculture in the northwestern part of Bangladesh is important for the sustainable use and management of this already stressed precious resource.Groundwater level data collected from 130 sites across 25 Upazilas (sub-district) of three northwest districts of Bangladesh were used in this study to access the impacts of climate change on groundwater resources in the region. Several geostatistical and determistic interpolation methods as well as data mining techniques such as, Support Vector Machines (SVM) and Artificial Neural Network (ANN) were investigated for spatial and temporal modeling of groundwater level. The study revealed that co-kriging gives the best estimation of spatial distribution of water table when soil infiltration information is provided. On the other hand, Artificial Neural Network (ANN) was found to model groundwater table fluctuation more accurately compared to other data mining approaches. Therefore, ANN was used to project the changes in groundwater level under projected climate data obtained through statistical downscaling of global circulation model outputs. Groundwater drought situations during base year and under projected climate were investigated using the Cumulative Deficit approach in a geographical information system. The study revealed that groundwater scarcity in at least 27% of the study area will be an every year phenomenon in the region due to climate change. Analysis of climate change and groundwater hydrographs reveals that no appreciable change in precipitation, but increases in temperature as well as increase in groundwater extraction for irrigation in the dry season are the causes of groundwater scarcity in the region.
format	Thesis
qualification_level	Master's degree
author	Hassan, Ibrahim
author_facet	Hassan, Ibrahim
author_sort	Hassan, Ibrahim
title	Spatial and temporal modeling of regional groundwater level in context of climate change
title_short	Spatial and temporal modeling of regional groundwater level in context of climate change
title_full	Spatial and temporal modeling of regional groundwater level in context of climate change
title_fullStr	Spatial and temporal modeling of regional groundwater level in context of climate change
title_full_unstemmed	Spatial and temporal modeling of regional groundwater level in context of climate change
title_sort	spatial and temporal modeling of regional groundwater level in context of climate change
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2015
url	http://eprints.utm.my/id/eprint/50812/25/IbrahimHassanMFKA2015.pdf
_version_	1747817539800399872

Spatial and temporal modeling of regional groundwater level in context of climate change

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