+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Recent land ice mass changes determined from satellite gravimetry

, : Recent land ice mass changes determined from satellite gravimetry. Geological Society of America 40.6

Understanding the evolution of the ice sheets and glacier systems is of paramount importance due to the vulnerability of the Earth's cryosphere to climate change and its contribution to sea level. Recent changes in the cryosphere highlight the importance of methods for directly observing the complex spatial and temporal variation of land ice mass changes. Since its launch in March of 2002, the NASA/DLR Gravity Recovery and Climate Experiment (GRACE) mission has been acquiring ultra-precise inter-satellite K-band range and range-rate (KBRR) measurements providing new observations of the complex spatial and temporal evolution of the Earth's land ice. Employing a surface mass concentration (mascon) solution technique, we have computed multi-year time series of surface mass flux for Greenland and Antarctica coastal and interior ice sheet sub-drainage systems as well as the Gulf of Alaska glacier systems. These mascon solutions provide important observations of the seasonal and inter-annual evolution of the Earth's land ice. Ice Sheet and glacier system mass gains and losses during accumulation and melt seasons are quantified as well as inter-annual variations and trends. We present our latest mascon solutions of the Greenland and Antarctica ice sheets as well as the Gulf of Alaska mountain glaciers. We compare these mass flux solutions to ICESat and airborne laser altimeter observations of surface elevation change as well as surface melt observations derived from MODIS data. We also quantify the affects of solution technique and background modeling (e.g. atmospheric, tidal, ocean and hydrological mass flux) on the land ice mascon solutions.


Other references

Martin, D., 1977: The cocoa soils of Woleu-Ntem (Gabon). Data for 50 profiles of ferrallitic soils under cocoa showed that the most suitable soils were those that had undergone fine-particle (clay + silt) impoverishment resulting in higher pH and base-saturation levels. Other soils needed to be limed to...

Olodovskii, P.P., 1989: Density of adsorbed water. Methods for determining the density of adsorbed water were studied. The effects of: (a) variations in the density of the dispersion medium; (b) the deformation of the crystalline lattice; (c) the influence of the molecules of the dispersion medium...

Noguchi, H., 1919: Etiology Of Yellow Fever : Iv. The Acquired Immunity Of Guinea Pigs Against Leptospira Icteroides After The Inoculation Of Blood Of Yellow Fever Patients. The majority of guinea pigs inoculated with the blood of yellow fever patients escaped a fatal infection. There were a number of instances in which the inoculation of yellow fever blood induced in these animals a temporary febrile reaction on the...

Tramer, M., 1963: Funeral Ceremonies For Prof. Dr. Moritz Tramer Held On May 6, 1963, In Bern. Acta Paedopsychiatrica 30: 259-274

Davenport, C.B., 1913: Clonal variation in Pectinatella. Amer: 361-371

Yaekura, K.; Kakei, M.; Yada, T., 1996: cAMP-signaling pathway acts in selective synergism with glucose or tolbutamide to increase cytosolic Ca2+ in rat pancreatic beta-cells. cAMP and the insulinotropic peptides that raise cAMP glucose-dependently increase the cytosolic free Ca-2+ concentration ((Ca-2+)-i) in pancreatic beta-cells, which is tightly linked to the potentiation of glucose-induced insulin release. We exami...

Briscoe C.S.; Sebens K.P., 1988: Omnivory in the green sea urchin strongylocentrotus droebachiensis muller the contribution of mussel versus kelp diets for somatic growth and reproductive output. Burke, R D , Et Al (Ed ) Echinoderm Biology; Sixth International Echinoderm Conference, Victoria, British Columbia, Canada, August 23-28, 1987 Xiii+818p A A Balkema: Rotterdam, Netherlands, Illus Maps 790

Huang, S.Y.; Shaw, S.W.; Su, S.Y.; Li, W.F.; Peng, H.H.; Cheng, P.J., 2017: The impact of a novel transendometrial approach for caesarean myomectomy on obstetric outcomes of subsequent pregnancy: a longitudinal panel study. To evaluate the obstetric and surgical outcomes of a novel transendometrial approach for myomectomy during caesarean section in subsequent pregnancies. Longitudinal panel study. Chang Gung Memorial Hospital, Taiwan, with approximately 5000 births..., W.; L.Q.anxi, 1997: Analysis of 3H11 McAb variable region gene and expression of 3H11 human-mouse chimeric light chain. The entire V-H and V-L genes of anti-gastric cancer McAb 3H11 were cloned by RT-PCR method from 3H11 hybridoma cells, using 5' primers for leader sequences. DNA sequences analysis indicated that the cloned genes included the whole leader sequ...

Merrill, M.L.; Bohnert, D.W.; Harmon, D.L.; Craig, A.M.; Schrick, F.N., 2007: The ability of a yeast-derived cell wall preparation to minimize the toxic effects of high-ergot alkaloid tall fescue straw in beef cattle. Two experiments were conducted to evaluate the influence of a yeast-derived cell wall preparation (YCW) on forage intake and digestibility, ruminal fermentation characteristics, serum prolactin and prolactin stores, and milk production in beef cat...