Flow Of Antarctic Ice Shelves Between Long. 29° E. And 44° W

Transoceanic infragravity waves impacting Antarctic ice shelves

[1] Long-period oceanic infragravity (IG) waves (ca. [250, 50] s period) are generated along continental coastlines by nonlinear wave interactions of storm-forced shoreward propagating swell. Seismic observations on the Ross Ice Shelf show that free IG waves generated along the Pacific coast of North America propagate transoceanically to Antarctica, where they induce a much higher amplitude she...

Tsunami and infragravity waves impacting Antarctic ice shelves

The responses of the Ross Ice Shelf (RIS) to the 16 September 2015 8.3 (Mw) Chilean earthquake tsunami (>75 s period) and to oceanic infragravity (IG) waves (50–300 s period) were recorded by a broadband seismic array deployed on the RIS from November 2014 to November 2016. Here we show that tsunami and IG-generated signals within the RIS propagate at gravity wave speeds ( 70 m/s) as water-ice ...

The Link Between Climate Warming and Break-Up of Ice Shelves in the Antarctic Peninsula

Melting and freezing under Antarctic ice shelves from a combination of ice-sheet modelling and observations

Ice flow of the Antarctic ice sheet.

We present a reference, comprehensive, high-resolution, digital mosaic of ice motion in Antarctica assembled from multiple satellite interferometric synthetic-aperture radar data acquired during the International Polar Year 2007 to 2009. The data reveal widespread, patterned, enhanced flow with tributary glaciers reaching hundreds to thousands of kilometers inland over the entire continent. Thi...