Mathematics – Logic
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3720402w&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 20, CiteID L20402
Mathematics
Logic
16
Hydrology: Groundwater Hydrology, Hydrology: Anthropogenic Effects (4802, 4902), Global Change: Water Cycles (1836), Hydrology: Hydrological Cycles And Budgets (1218, 1655), Oceanography: Physical: Sea Level: Variations And Mean (1222, 1225, 1641)
Scientific paper
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.
Bierkens Marc F. P.
Reckman Josef W. T. M.
van Beek Ludovicus P. H.
van Kempen Cheryl M.
Vasak Slavek
No associations
LandOfFree
Global depletion of groundwater resources does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Global depletion of groundwater resources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Global depletion of groundwater resources will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1231582