S. Bettadpur, Level-2 Gravity Field Product User Handbook, GRACE 327-734, The 443 GRACE Project, p.444, 2007.

S. Bruinsma, J. M. Lemoine, R. Biancale, and N. Vales, CNES/GRGS 10-day gravity field models (release 2) and their evaluation, CNES/GRGS 10-day gravity 445 field models (release 2) and their evaluation, pp.587-601, 2010.
DOI : 10.1016/j.asr.2009.10.012

C. Daly, D. R. Conklin, and M. H. Unsworth, Local atmospheric decoupling in complex 450 topography alters climate change impacts, International Journal of Climatology, vol.30, issue.12, pp.451-1857, 2010.

W. Edition, ? Good book for consultants, it has many real-world examples and covers 454 additional topics (e.g. heat flow, multi-phase and unsaturated flow), p.455

M. De-linage, Satellites measure recent rates of groundwater depletion 457 in California's Central Valley, Geophysical Research Letters, vol.38, p.458, 2011.

C. C. Faunt, Groundwater availability of the Central Valley Aquifer, California; US 459 Geological Survey Prof, 2009.

Z. W. Kundzewicz and P. Döll, Will groundwater ease freshwater stress under climate integrated observations of the early 21st century multiyear drought in southeast Australia, p.475, 2009.

L. Longuevergne, N. Florsch, and P. Elsass, Extracting coherent regional information 477 from local measurements with Karhunen-Loeve transform: Case study of an alluvial aquifer 478, Water Resources Research, 2007.

L. Longuevergne, B. R. Scanlon, and C. R. Wilson, GRACE Hydrological estimates for 480 small basins: Evaluating processing approaches on the High Plains Aquifer, 481 Resources Research, p.482, 2010.

V. L. Mcguire, Water level changes in the High Plains Aquifer, Predevelopment to, Scientific Investigations, 2005.

A. Paulson, S. J. Zhong, and J. Wahr, Inference of mantle viscosity from GRACE and 492 relative sea level data, Geophysical Journal International, vol.17113, issue.2 2, pp.497-508, 2007.

S. Siebert and P. Doll, Quantifying blue and green virtual water contents in global crop storage variations from GRACE with groundwater-level measurements from the High Plains 508, 2010.

. Aquifer, Geophysical Research Letters, pp.5-509

S. Swenson and J. Wahr, Methods for inferring regional surface-mass anomalies from 510, 2002.

S. Swenson and J. Wahr, Post-processing removal of correlated errors in GRACE data, Geophysical Research Letters, vol.31, issue.20, p.513, 2006.
DOI : 10.1029/2005GL025285

. Daly, snow water equivalent storage (SWES), and 559 soil moisture storage (SMS) change anomalies for the Sacramento and San Joaquin River 560 basins. Note large reduction in water storages in response to the 2006 through 2009 drought, 561 particularly in the first year of the drought. The precipitation anomaly is based on gridded data 562 from PRISM, Figure 4. Surface water reservoir storage (RESS), 2009.