[PDF] Top 20 Mapping Ice Sheet Grounding Lines With CryoSat-2

... continuous ice sheet grounding ...of ice sheet observations acquired by any instrument to ...grounded ice boundary from the break in surface slope, although the earlier satellite ... See full document

... mean CryoSat-2 data for three campaign periods spanning March 2011 to March ...sea ice freeboard, snow depth, and thickness products (Kurtz et ...Digital Mapping System camera (Dominguez, ... See full document

... (Figures 2–5 and 7), topographic con- straints (Figures 4, 6, and 7) and major sedimentary depo-centres (Figure 6; Batchelor and Dowdes- well, ...or ice rafted debris traced to its sediment sources. ... See full document

... of ice to grounding lines is highly spatially vari- able, determined by the overall flow structure of the ice sheet (Bamber et ...of ice shelf buttressing (Rignot et ...the ... See full document

... Antarctic Ice Sheet into the ocean, particularly across the Amundsen Sea ...Ross Ice Shelf, glaciological change has been only sparsely ...track grounding-line migration along the Marie Byrd ... See full document

... of grounding-line migra- tion, a critical question is whether retreat on a retrograde slope necessarily implies continued irreversible retreat in the future due to the marine ice-sheet ...internal ... See full document

... of ice sheets to external forcing is of key ...of grounding-line position to changes in basal melt rates depends on bed ...the grounding-line po- sition is independent of any forcing to which an ... See full document

... upon ice dynamics of variable rates of water delivery into the subglacial system ...estimate ice sheet mass balance over timescales longer than the periodicity of lake evolution and suggests that ... See full document

... of grounding lines, where ice detaches from the un- derlying bedrock and becomes afloat in the ocean, is possi- ble using satellite remote sensing with either visible imagery (Bohlander and Scambos, ... See full document

... accurate grounding- line migration only with a resolution of 200 m or less (Corn- ford et ...marine ice sheets at much lower computational expense than would be required with traditional friction ...whole ... See full document

... the ice-front position of the Zacahariæ Isstrøm beginning in ...the ice-front position, while a large positive signal is observed roughly 100 km upstream of the ...velocity mapping. Rates of ... See full document

... south and Lake Greve to the north. From 1945 to present, the tidewater terminus advanced ~13 km and is currently at its Neoglacial maximum (Wilson et al., 2016; Fig. 9 and Fig. E1). Looped supraglacial moraines were used ... See full document

... sea ice edge, which can im- prove the safety and efficiency of their operational missions (Posey et ...sea ice concentration data, it has been suggested that forecast model skill could be further im- proved ... See full document

... the ice shelf, the calving front is still north of the MISW and Clemence Massif (Figure ...the grounding line and the MISW can be seen in the profile of the ice shelf (ice shelf left of ... See full document

... The range to the main scattering horizon is estimated at the leading edge of the radar echo waveforms (Tonboe et al., 2006). In synthetic aperture radar (SAR) altimetry, the wave- form consists of a stack of collocated ... See full document

... sea ice. First, CryoSat-2 data are processed 1 month at a time and the outlying data points are filtered out to reduce the inherent noise of the ...the CryoSat-2 orbit and subtracting ... See full document

... calculated ice fluxes for steady-state condi- ...calculated ice fluxes for but- tressed ...predicts grounding-line ice fluxes for realistic geometries such as that of the present-day ... See full document

... the ice sheet in its initial configuration ...the ice sheet margin to retreat but not advance; at each time step, we apply a mask to simply remove any ice that has advanced beyond the ... See full document

... winter ice, as previously noted with the assimila- tion work of ICESat SIT data in Mathiot et ...and 2 November 2014, followed by a large decrease in the subsequent ...the 2 November reveals that the ... See full document

... The ice to- pography effect can have a “local” effect and “non-local” ...“local” ice topography effect is the so-called “lapse rate effect”, which causes cooling over the ice sheet just ... See full document