Predicting average annual groundwater levels from climatic variables: an empirical model

Chen, Zhuoheng; Grasby, Stephen E.; Osadetz, Kirk G.

doi:10.1016/s0022-1694(01)00606-0

Cited by 117 publications

(85 citation statements)

References 4 publications

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“…For example Chen et al (2002), Hsu et al (2006) and SerratCapdevila et al (2007) apply a simple linear function including precipitation and temperature to simulate groundwater recharge, while Woldeamlak et al (2007), Jyrkama and Sykes (2007), van Roosmalen et al (2009), McCallum et al (2010 amongst others apply a more complex approach. Holman (2006), Jyrkama and Sykes (2007), Hendricks Franssen (2009), Ferguson and Maxwell (2010) and Holman et al (2011) advise a physically based approach that accounts for spatial and temporal variation of surface and subsurface properties of the study basin when simulating the impact of climate change on groundwater recharge.…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal impact of climate change on the groundwater system

Dams

Salvadore

Daele

et al. 2012

Hydrol. Earth Syst. Sci.

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Abstract. Given the importance of groundwater for food production and drinking water supply, but also for the survival of groundwater dependent terrestrial ecosystems (GWDTEs) it is essential to assess the impact of climate change on this freshwater resource. In this paper we study with high temporal and spatial resolution the impact of 28 climate change scenarios on the groundwater system of a lowland catchment in Belgium. Our results show for the scenario period 2070-2101 compared with the reference period 1960-1991, a change in annual groundwater recharge between −20 % and +7 %. On average annual groundwater recharge decreases 7 %. In most scenarios the recharge increases during winter but decreases during summer. The altered recharge patterns cause the groundwater level to decrease significantly from September to January. On average the groundwater level decreases about 7 cm with a standard deviation between the scenarios of 5 cm. Groundwater levels in interfluves and upstream areas are more sensitive to climate change than groundwater levels in the river valley. Groundwater discharge to GWDTEs is expected to decrease during late summer and autumn as much as 10 %, though the discharge remains at reference-period level during winter and early spring. As GWDTEs are strongly influenced by temporal dynamics of the groundwater system, close monitoring of groundwater and implementation of adaptive management measures are required to prevent ecological loss.

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Section: Introductionmentioning

confidence: 99%

Spatio-temporal impact of climate change on the groundwater system

Dams

Salvadore

Daele

et al. 2012

Hydrol. Earth Syst. Sci.

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“…Chen et al (2002) observed that groundwater levels responded to precipitation variability in a mid-continent carbonate-rock aquifer differently from well to well because of the spatial differences in permeability of overlying sediments and recharge characteristics. Additionally, groundwater levels at some locations of the aquifer responded to high-frequency precipitation events while groundwater levels in other areas did not respond.…”

Section: Precipitation Evapotranspiration and Surface Water Affect mentioning

confidence: 99%

“…Additionally, groundwater levels at some locations of the aquifer responded to high-frequency precipitation events while groundwater levels in other areas did not respond. The groundwater-level response to highfrequency events may indicate the existence of highly permeable channels or preferential-flow paths from land surface to the water table (Chen et al 2002), or differences in thickness of the unsaturated zone (e.g., Hunt et al 2008).…”

Section: Precipitation Evapotranspiration and Surface Water Affect mentioning

confidence: 99%

“…As a result, research efforts have characterised subsurface hydrologic and geochemical responses to climate variability on interannual to multidecadal time scales because variability on these time scales has the most tangible implications for water-resource management (Chen et al 2002(Chen et al , 2004Gurdak et al 2007;Hanson and Dettinger 2005;Hanson et al 2004Hanson et al , 2006. Climate forcings on these timescales, such as the PDO, AMO, and the El Niño/Southern Oscillation (ENSO), substantially control recharge and water-table fluctuations of the High Plains aquifer (Gurdak et al , 2009McMahon et al 2007), other aquifer systems of the southwestern United States (Barco et al 2010;Hanson et al 2006;Hanson et al 2004), and a number of other aquifers worldwide (Ngongondo 2006), including those in many small, tropical islands in the Pacific, Indian, and Atlantic oceans (White et al 2007).…”

Section: Aquifer Flow and Storagementioning

confidence: 99%

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Linking Climate Change and Groundwater

Green

2016

Integrated Groundwater Management

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Projected global change includes groundwater systems, which are linked with changes in climate over space and time. Consequently, global change affects key aspects of subsurface hydrology (including soil water, deeper vadose zone water, and unconfined and confined aquifer waters), surface-groundwater interactions, and water quality. Research and publications addressing projected climate effects on subsurface water are catching up with surface water studies. Even so, technological advances, new insights and understanding are needed regarding terrestrial-subsurface systems, biophysical process interactions, and feedbacks to atmospheric processes. Importantly, groundwater resources need to be assessed in the context of atmospheric CO 2 enrichment, warming trends and associated changes in intensities and frequencies of wet and dry periods, even though projections in space and time are uncertain. Potential feedbacks of groundwater on the global climate system are largely unknown, but may be stronger than previously assumed. Groundwater has been depleted in many regions, but management of subsurface storage remains an important option to meet the combined demands of agriculture, industry (particularly the energy sector), municipal and domestic water supply, and ecosystems. In many regions, groundwater is central to the water-food-energy-climate nexus. Strategic adaptation to global change must include flexible, integrated groundwater management over many decades. Adaptation itself must be adaptive over time. Further research is needed to improve our understanding of climate and groundwater interactions and to guide integrated groundwater management.

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“…The drought episodes included in this study were selected using climate division level drought indices. Indices included the Palmer Drought Severity Index, Palmer Hydrological Drought Index, and Standardized Precipitation Index 9,12,24). Precipitation and the average temperature were also used.…”

mentioning

confidence: 99%

Examining the Relationship between Drought Indices and Groundwater Levels

Leelaruban

Padmanabhan

Oduor

2017

Water

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Thorough characterization of the response of finite water resources to climatic factors is essential for water monitoring and management. In this study, groundwater level data from U.S. Geological Survey Ground-Water Climate Response Network wells were used to analyze the relationship between selected drought indices and groundwater level fluctuation. The drought episodes included in this study were selected using climate division level drought indices. Indices included the Palmer Drought Severity Index, Palmer Hydrological Drought Index, and Standardized Precipitation Index 9,12,24). Precipitation and the average temperature were also used. SPI-24 was found to correlate best with groundwater levels during drought. For 17 out of 32 wells, SPI-24 showed the best correlation amongst all of the indices. For 12 out of 32 wells, SPI-24 showed correlation coefficients of −0.6 or stronger; and for other wells, reasonably good correlation was demonstrated. The statistical significance of SPI-24 in predicting groundwater level was also tested. The correlation of average monthly groundwater levels with SPI-24 does not change much throughout the timeframe, for all of the studied wells. The duration of drought also had a significant correlation with the decline of groundwater levels. This study illustrates how drought indices can be used for a rapid assessment of drought impact on groundwater level.

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Predicting average annual groundwater levels from climatic variables: an empirical model

Cited by 117 publications

References 4 publications

Spatio-temporal impact of climate change on the groundwater system

Spatio-temporal impact of climate change on the groundwater system

Linking Climate Change and Groundwater

Examining the Relationship between Drought Indices and Groundwater Levels

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