The changing characteristics of groundwater sustainability in Pakistan from 2002 to 2016

Ahmed, Kamal; Shahid, Shamsuddin; Demirel, Mehmet Cüneyd; Nawaz, Nadeem; Khan, Najeebullah

doi:10.1007/s10040-019-02023-x

Cited by 22 publications

(18 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The findings from this present study corroborate the findings of few studies conducted in the nearby countries, such as [34,43,48,76] which showed a generally decreasing trend in the water storage and increasing aridity [81,82] in the Central Asia region. This emphasizes how important it is to conserve and improve water resources management in the region, particularly for Afghanistan where more populace would need the resource for irrigation purposes in the future as the population continues to grow and the climate continues to change.…”

Section: Discussionsupporting

confidence: 90%

“…However, studies conducted in regions around Afghanistan have shown changes in the availability of water due to climate change. Ahmed, Shahid [48] assessed the changing characteristics of water resources over the period of 2002-2016 in Pakistan and observed a significant aquifer storage decrease over the study period. The areas where agricultural practices are more intense were found to have a greater decline in groundwater level as a result of overexploitation of the resource for irrigation purposes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spatio-Temporal Pattern in the Changes in Availability and Sustainability of Water Resources in Afghanistan

et al. 2019

Self Cite

View full text Add to dashboard Cite

Water is gradually becoming scarce in Afghanistan like in many other regions of the globe. The objective of this study was to evaluate the spatial changes in the availability and sustainability of water resources in Afghanistan. The Terrestrial Water Storage (TWS) data of the Gravity Recovery and Climate Experiment (GRACE) satellite obtained from three different institutes, having 1° × 1° spatial resolution for the period 2002–2016 was used for this purpose. Sen’s slope method was used to assess the rate of change, and the Modified Mann–Kendall test was used for the evaluation of the significance of trends in TWS. After, the concept of reliability–resiliency–vulnerability (RRV) was used for assessing the spatial distribution of sustainability in water resources. The results revealed a significant decrease in water availability in the country over the last 15 years. The decrease was found to be highest in the central region where most of the population of the country resides. The reliability in water resources was found high in the northeast Himalayan region and low in the southwest desert; resilience was found low in the central region, while vulnerability was found high in the south and the southeast. Overall, the water resources of the country were found most sustainable in the northeast and southwest and least in the south and the central parts. The maps of water resource sustainability and the changes in water availability produced in the present study can be used for long-term planning of water resources for adaptation to global changes. Besides, those can be used for the management of water resources in a sustainable and judicious manner.

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Pattern in the Changes in Availability and Sustainability of Water Resources in Afghanistan

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…This study considered the demand as −1, and it is expected that the total water availability should not decline below one standard deviation from the mean. Details of RRV can be found in Ahmed et al [14].…”

Section: Methodsmentioning

confidence: 99%

Projection of Water Availability and Sustainability in Nigeria Due to Climate Change

2021

Self Cite

View full text Add to dashboard Cite

This study projects water availability and sustainability in Nigeria due to climate change. This study used Gravity Recovery and Climate Experiment (GRACE) terrestrial water storage data (TWS), Global Precipitation Climatology Center (GPCC) precipitation data and Climate Research Unit (CRU) temperature data. Four general circulation models (GCMs) of the Coupled Model Intercomparison Project 5 were downscaled using the best of four downscaling methods. Two machine learning (ML) models, RF and SVM, were developed to simulate GRACE TWS data for the period 2002–2016 and were then used for the projection of spatiotemporal changes in TWS. The projected TWS data were used to assess the spatiotemporal changes in water availability and sustainability based on the reliability–resiliency–vulnerability (RRV) concept. This study revealed that linear scaling was the best for downscaling over Nigeria. RF had better performance than SVM in modeling TWS for the study area. This study also revealed there would be decreases in water storage during the wet season (June–September) and increases in the dry season (January–May). Decreases in projected water availability were in the range of 0–12 mm for the periods 2010–2039, 2040–2069, and 2070–2099 under RCP2.6 and in the range of 0–17 mm under RCP8.5 during the wet season. Spatially, annual changes in water storage are expected to increase in the northern part and decrease in the south, particularly in the country’s southeast. Groundwater sustainability was higher during the period 2070–2099 under all RCPs compared to the other periods and this can be attributed to the expected increases in rainfall during this period.

show abstract

“…Due to absence of long observational data and the sparse spread of monitoring wells, satellite-based observations of groundwater-storage variations through the GRACE satellite are often used to estimate the groundwater-storage changes [17,100,101]. Terrestrial water storage includes all landforms of water available to an area.…”

Section: Estimation Of Groundwater Storage (Gws)mentioning

confidence: 99%

An Overview of Groundwater Monitoring through Point-to Satellite-Based Techniques

Masood¹,

Tariq

Hashmi³

et al. 2022

Water

View full text Add to dashboard Cite

Groundwater supplies approximately half of the total global domestic water demand. It also complements the seasonal and annual variabilities of surface water. Monitoring of groundwater fluctuations is mandatory to envisage the composition of terrestrial water storage. This research provides an overview of traditional techniques and detailed discussion on the modern tools and methods to monitor groundwater fluctuations along with advanced applications. The groundwater monitoring can broadly be classified into three groups. The first one is characterized by the point measurement to measure the groundwater levels using classical instruments and electronic and physical investigation techniques. The second category involves the extensive use of satellite data to ensure robust and cost-effective real-time monitoring to assess the groundwater storage variations. Many satellite data are in use to find groundwater indirectly. However, GRACE satellite data supported with other satellite products, computational tools, GIS techniques, and hydro-climate models have proven the most effective for groundwater resources management. The third category is groundwater numerical modeling, which is a very useful tool to evaluate and project groundwater resources in future. Groundwater numerical modeling also depends upon the point-based groundwater monitoring, so more research to improve point-based detection methods using latest technologies is required, as these still play the baseline role. GRACE and numerical groundwater modeling are suggested to be used conjunctively to assess the groundwater resources more efficiently.

show abstract

The changing characteristics of groundwater sustainability in Pakistan from 2002 to 2016

Cited by 22 publications

References 67 publications

Spatio-Temporal Pattern in the Changes in Availability and Sustainability of Water Resources in Afghanistan

Spatio-Temporal Pattern in the Changes in Availability and Sustainability of Water Resources in Afghanistan

Projection of Water Availability and Sustainability in Nigeria Due to Climate Change

An Overview of Groundwater Monitoring through Point-to Satellite-Based Techniques

Contact Info

Product

Resources

About