Ground-water availability in the United States

Reilly, Thomas E.; Dennehy, Kevin F.; Alley, William M.; Cunningham, William L.

doi:10.3133/cir1323

Cited by 109 publications

(52 citation statements)

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“…The grid‐based global estimate is shown in Figure 1c (see for a map in km 3 a −1 ), while details in four regions are shown in Figure 2. Many of the well‐known hot spots of groundwater depletion appear: North‐East Pakistan and North‐West India [ Rodell et al , 2009], North‐East China [ Konikow and Kendy , 2005], the Ogallala Aquifer in the central U.S. [ Gutentag et al , 1984], the San‐Joaquin aquifer in the Central Valley of California [ Reilly et al , 2008], Iran [ Karami and Hayati , 2005], Yemen [ Al‐Sakkaf et al , 1999] and the South‐East of Spain [ Custodio , 2002]. The total global groundwater depletion is estimated as 283 (±40) km 3 · a −1 .…”

Section: Results: Global Groundwater Depletionmentioning

confidence: 99%

Global depletion of groundwater resources

Wada

Beek

Kempen

et al. 2010

Geophysical Research Letters

1,602

1,102

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In regions with frequent water stress and large aquifer systems groundwater is often used as an additional water source. If groundwater abstraction exceeds the natural groundwater recharge for extensive areas and long times, overexploitation or persistent groundwater depletion occurs. Here we provide a global overview of groundwater depletion (here defined as abstraction in excess of recharge) by assessing groundwater recharge with a global hydrological model and subtracting estimates of groundwater abstraction. Restricting our analysis to sub‐humid to arid areas we estimate the total global groundwater depletion to have increased from 126 (±32) km3 a−1 in 1960 to 283 (±40) km3 a−1 in 2000. The latter equals 39 (±10)% of the global yearly groundwater abstraction, 2 (±0.6)% of the global yearly groundwater recharge, 0.8 (±0.1)% of the global yearly continental runoff and 0.4 (±0.06)% of the global yearly evaporation, contributing a considerable amount of 0.8 (±0.1) mm a−1 to current sea‐level rise.

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Section: Results: Global Groundwater Depletionmentioning

confidence: 99%

Global depletion of groundwater resources

Wada

Beek

Kempen

et al. 2010

Geophysical Research Letters

1,602

1,102

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“…Water use for irrigation, municipal supplies, and industry in the Columbia Plateau of Washington and Oregon has resulted in significant water-level changes (FCRPS 2001). Water level declines resulting from ground water pumping for irrigation impact the baseflow contribution during the Summer and Fall seasons, and are especially dominant in the Snake River region (gauge numbers: 71-80) and the Columbia Plateau along the Washington-Oregon border (Reilly et al 2008;refer to Fig. S1 in Supplementary Information).…”

Section: Regional Changes In Streamflowmentioning

confidence: 98%

High-resolution streamflow trend analysis applicable to annual decision calendars: a western United States case study

Kim

Jain

2010

Climatic Change

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Changes in the seasonality of streamflow in the western United States have important implications for water resources management and the wellbeing of coupled human-natural systems. An assessment of changes in the timing and magnitude of streamflow resolved at fine time scales (days to weeks and seasons) is highly relevant to adaptive management strategies that are responsive to changing hydrologic baselines. In this paper, we present a regional analysis of the changes in streamflow seasonality through a broad classification of streams and quantification of increases and decreases in flow, based on a quantile regression methodology. This analysis affords a useful research product to examine the diversity of trends across seasons for individual streams. The trend analysis methodology can identify windows of change, thus revealing vulnerabilities within decision calendars and species lifecycles, an important consideration for adaptation and mitigation efforts.

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“…It is therefore useful to relate the snowpack framework defined in terms of the NHDPlus hydrographic network with the other GIS layers. Geospatial join operations were applied for the NHDPlus flowline points in the 5 day downstream TOT buffer area to develop a single GIS layer with the following attributes: annual average flow (from the NHDPlus), aquifer recharge (Wolock 2003;Reilly et al, 2008), annual precipitation information (NCDC 2008b), stream order (from the NHDPlus), and Wadeable Streams Assessment ecoregion (U.S. EPA 2006). This set of attributes provides a foundation to characterize the response to likely drought episode or climate change perturbations starting at the scale of individual NHDPlus flowlines using a format than can provide results for larger spatial units such as the Wadeable Streams Assessment (WSA) ecoregions through simple database query techniques.…”

Section: Materials For Hydrologic and Ecosystem-based Geospatial Analmentioning

confidence: 99%

NHDPlus Western States Snowpack Analysis Framework for Current Conditions and Impacts from Climate Change

Cooter¹,

Cutrofello²,

Rineer³

et al. 2009

proc water environ fed

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Larger river systems in the western United States receive their base flow from snowpack in higher elevation areas. Extended drought episodes can reduce the release of water from the major snowpack zones, and climate change may lead to more chronic impacts on water availability. The enhanced National Hydrography Dataset (the NHDPlus) can be applied to provide a nationally consistent framework to define the extent of the western snowpack core areas. Once the periphery (or rim) of a core snowpack zone is defined within the NHDPlus, upstream and downstream analyses can be applied for units ranging from small local watersheds to large hydrological networks implemented for all U.S. western states. Examples are provided illustrating the methods for developing this NHDPlus-based snowpack framework and ways in which analytical data mining and modeling tools can assist in water quality and quantity management programs to address climate change impacts.

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Ground-water availability in the United States

Cited by 109 publications

References 0 publications

Global depletion of groundwater resources

Global depletion of groundwater resources

High-resolution streamflow trend analysis applicable to annual decision calendars: a western United States case study

NHDPlus Western States Snowpack Analysis Framework for Current Conditions and Impacts from Climate Change

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