Greenland mass balance from GRACE

By Isabella Velicogna, John M. Wahr. 2005

217 citations recorded by the source corpus.

We use 22 monthly GRACE (Gravity Recovery and Climate Experiment) gravity fields to estimate the linear trend in Greenland ice mass during 2002–2004. We recover a decrease in total ice mass of 82 ± 28 km3 of ice per year, consistent with estimates from other techniques. Our uncertainty estimate is dominated by the effects of GRACE measurement errors and errors in our post glacial rebound (PG) correction. The main advantages of GRACE are that it is sensitive to the entire ice sheet, and that it provides mass estimates with only minimal use of supporting physical assumptions or ancillary data.

Subfields: Atmospheric Science, Oceanography, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/373a58a88fb728e234352e6bce95e83c338da27b

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atmospheric Science

In Oceanography

In Statistical and Nonlinear Physics

Citations in the corpus

Antarctica, Greenland and Gulf of Alaska land-ice evolution from an iterated GRACE global mascon solution (2013, methodology): “The averaging kernel is constructed, calibrated and applied in a similar fashion to Velicogna and Wahr (2005).”
Interannual variations of the mass balance of the Antarctica and Greenland ice sheets from GRACE (2006, methodology): “4a,b,c is the contamination effect (or leakage) of gravity signals due to reservoirs other than the ice sheets (atmosphere, ocean, terrestrial water reservoirs) (e.g., Velicogna and Wahr, 2005, 2006).”
Antarctic mass rates from GRACE (2006, result): “that might be on the order of 100% Our estimate of 99 or 77 km(3)/year mass loss in West Antarctica is consistent with that of Velicogna and Wahr [2006] of 148 km(3)/year, given the large PGR uncertainty and that here we only compute the mass loss in the Amundsen Sea Embayment in West Antarctica.”
Detection of Continental Hydrology and Glaciology Signals from GRACE: A Review (2008, background): “Velicogna and Wahr (2005, 2006b) found a loss rate of -82 ± 28 km3/yr for Greenland with an acceleration of melting in spring 2004.”
Mass balance of the Greenland Ice Sheet from 1992 to 2018 (2019, unknown): “…the early 1990(cid:146)s there have been comprehensive satellite observations of changing ice sheet velocity 4,6 , elevation 27(cid:150)29 and, between 2002 and 2016, its changing gravitational attraction 30,31 , from which complete estimates of Greenland Ice Sheet mass balance are determined 1 .”
Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE (2009, background): “Previously published estimates of the Greenland ice mass loss range from 101 Gt/yr to 227 Gt/yr [ Velicogna and Wahr, 2005, 2006b; Chen et al., 2006a, 2006b; Luthcke et al., 2006; Ramillien et al., 2006; Wouters et al., 2008].”
Post‐processing removal of correlated errors in GRACE data (2006, background): “A number of studies have exploited this relationship to make estimates of water storage variability, both on land and in the oceans [Swenson and Milly, 2006; Ramillien et al., 2005; Chen et al., 2005; Velicogna and Wahr, 2005; Tamisiea et al., 2005; Chambers et al., 2004; Tapley et al., 2004b; Wah”
On the robustness of predictions of sea level fingerprints (2011, background): “However, recent analyses of GRACE satellitegravity data have provided detailed estimates of regional variations in the polar mass flux (e.g. Velicogna & Wahr 2005; Chen et al. 2006; Velicogna & Wahr 2006; Chen et al. 2007).”
Response of the global ocean to Greenland and Antarctic ice melting (2008, background): “Recent estimates suggest that between 1996 and 2004 Greenland has lost between 50 and 100 Gt of net freshwater per year (Thomas et al., 2006; Velicogna and Wahr, 2005), equivalent to an accelerated increase of 0.9 mm/year in global sea level.”