[PDF] Top 20 Time-evolving mass loss of the Greenland Ice Sheet from satellite altimetry

... data from two spaceborne al- timeters: (i) the RA-1 (Radar Altimeter) on ERS-2 and (ii) the Geoscience Laser Altimeter System (GLAS) on ICESat (Ice, Cloud, and land Elevation ...data from ERS-2 have ... See full document

... surface. Satellite remote sensing data show an ablation zone expanded in size, its albedo and surface elevation lower in response to enhanced melting, and an ice sheet transition from steady ... See full document

... the Greenland ice sheet experienced surface melting as increased transport of warm air from the south created anomalously high temperatures [16], ...the satellite era ...the ice ... See full document

... new ice sheet model validation framework – the Cryospheric Model Comparison Tool (CmCt) – that aims to fill this ...specified time frame, process and filter available spatially and temporally ... See full document

... of ice sheet elevation change, the methodology we present should prove particu- larly useful for improving the accuracy of mass balance es- timates of the ...returns from the mis- sion ... See full document

... The Greenland ice sheet (GrIS) is the largest freshwater source in the Northern Hemisphere ...future mass balance of the GrIS [2, 3] and its contribution to sea level change [4, ...loosing ... See full document

... these ice sheets were to ever melt [1,2]. Even under a partial loss of these enormous ice masses, coastal areas would suffer significant ...that mass loss from the ... See full document

... D from daily 1 km 2 resolution SMB estimates obtained from ...fluxes from the ice-free tundra and peripheral ice caps, which are included in the GRACE signal, into the ice ... See full document

... discharge from outlet glaciers (Rignot et ...the ice sheet in the Green- land interior (Krabill et ...whole ice sheet is losing mass (Velicogna and Wahr, 2005; Chen et ...annual ... See full document

... Results from a regional climate simulation (1970– 2006) over the Greenland ice sheet (GrIS) reveals that more than 97% of the interannual variability of the modelled Sur- face Mass ... See full document

... snow, ice mass loss by sublimation, surface melt and subsequent run- ...and time over the ice ...the ice-sheet SEB, and thus on the ...over ice sheets re- mains ... See full document

... face mass balance (SMB), being the sum of snowfall, subli- mation and meltwater run-off ...derived from ice core ...fields from climate models can be used, such as what has been done ...with ... See full document

... GRACE-LM mass change estimates are pro- vided for ∼ 100 × 100 km 2 mascon regions, on what is essen- tially an equal area grid (shown in ...derived from k-band range and range rate (KBRR) data for two ... See full document

... on time-dependent adjoint modeling (Heimbach, 2008; Gold- berg and Heimbach, 2013), which show great promise in potentially enabling sophisticated data assimilation of dis- parate data sets into ... See full document

... a) Mass change time series for the entire GrIS generated by DTU (red) and TUDR ...b) Ice mass trends for 2007-2011 provided by DTU (left) and TUDR ...solutions from the ITSG-Grace2016 ... See full document

... The satellite gravity observations from GRACE (Gravity Recovery and Climate Experiment) provide snapshots of the global gravity field at monthly time intervals, which can be converted to mass ... See full document

... the ice sheet still lack details compared to an ...forcing from a GCM implies different characteristics, like smoother gradients and a less-resolved geometry, compared to the ...SMB from SEMIC ... See full document

... fast-flowing ice (orange, greater than 100 m yr −1 ) and the gates for the top eight discharging glaciers ...ferent from the main ...regions from Mouginot and Rignot (2019) are designated by thicker ... See full document

... ple, from ice drillings in the Eurasian sector o f the A rctic O cean during A ugust and Septem ber 1991, Eicken et a l [1995] arrived at a value o f ...8.48. From sim ilar w ork carried out in the ... See full document

... We have not used all available observations. Additional observations that can be used for validation are, for example, spatially distributed mass loss estimates from GRACE (e.g. Luthcke et al., 2013) ... See full document