GRACE Hydrological estimates for small basins: Evaluating processing approaches on the High Plains Aquifer, USA

作者: Laurent Longuevergne , Bridget R. Scanlon , Clark R. Wilson

DOI: 10.1029/2009WR008564

关键词:

摘要: The Gravity Recovery and Climate Experiment (GRACE) satellites provide observations of water storage variation at regional scales. However, when focusing on a region interest, limited spatial resolution noise contamination can cause estimation bias leakage, problems that are exacerbated as the interest approaches GRACE limit few hundred km. Reliable estimates variations in small basins require compromises between competing needs for suppression resolution. objective this study was to quantitatively investigate processing methods their impacts bias, reduction, estimated total error, allowing solution trade-offs. Among tested is recently developed concentration algorithm called spatiospectral localization, which optimizes basin shape description, taking into account This method particularly suited retrieval basin-scale effective basins. To increase confidence derived methods, were calculated both CSR (Center Space Research) GRGS (Groupe de Recherche Geodesie Spatiale) products, employ different strategies. techniques intensively monitored High Plains Aquifer (450,000 km2 area), where application appropriate optimal allowed over portion aquifer ˜200,000 km2.

参考文章(69)
Sean Swenson, John Wahr, P. C. D. Milly, Estimated accuracies of regional water storage variations inferred from the Gravity Recovery and Climate Experiment (GRACE) Water Resources Research. ,vol. 39, pp. 1223- ,(2003) , 10.1029/2002WR001808
Christopher Daly, Michael Halbleib, Joseph I. Smith, Wayne P. Gibson, Matthew K. Doggett, George H. Taylor, Jan Curtis, Phillip P. Pasteris, Physiographically sensitive mapping of climatological temperature and precipitation across the conterminous United States International Journal of Climatology. ,vol. 28, pp. 2031- 2064 ,(2008) , 10.1002/JOC.1688
Benjamin F. Zaitchik, Matthew Rodell, Rolf H. Reichle, Assimilation of GRACE Terrestrial Water Storage Data into a Land Surface Model: Results for the Mississippi River Basin Journal of Hydrometeorology. ,vol. 9, pp. 535- 548 ,(2008) , 10.1175/2007JHM951.1
V. M. Tiwari, J. Wahr, S. Swenson, Dwindling groundwater resources in northern India, from satellite gravity observations. Geophysical Research Letters. ,vol. 36, ,(2009) , 10.1029/2009GL039401
Shin‐Chan Han, Hyungjun Kim, In‐Young Yeo, Pat Yeh, Taikan Oki, Ki‐Weon Seo, Doug Alsdorf, Scott B Luthcke, None, Dynamics of surface water storage in the Amazon inferred from measurements of inter‐satellite distance change Geophysical Research Letters. ,vol. 36, ,(2009) , 10.1029/2009GL037910
G RAMILLIEN, F FRAPPART, A CAZENAVE, A GUNTNER, Time variations of land water storage from an inversion of 2 years of GRACE geoids Earth and Planetary Science Letters. ,vol. 235, pp. 283- 301 ,(2005) , 10.1016/J.EPSL.2005.04.005
John Wahr, Mery Molenaar, Frank Bryan, Time variability of the Earth's gravity field: Hydrological and oceanic effects and their possible detection using GRACE Journal of Geophysical Research: Solid Earth. ,vol. 103, pp. 30205- 30229 ,(1998) , 10.1029/98JB02844