| Title | Marine ice in Larsen Ice Shelf |
| Author | Holland, P.R.; Corr, H.F.J.; Vaughan, D.G.; Jenkins, A.; Skvarca, P. |
| Author Affil | Holland, P.R., British Antarctic Survey, Cambridge, United Kingdom. Other: Instituto Antártico Argentino, Argentina |
| Source | Geophysical Research Letters, 36(11), Citation L11604. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0094-8276 |
| Publication Date | 2009 |
| Notes | In English. 31 refs. GeoRef Acc. No: 301252. CRREL Acc. No: 64005560 |
| Index Terms | aerial surveys; airborne radar; freezing; glacial geology; ice; ice shelves; ocean environments; radar; temperature; Antarctica--Larsen Ice Shelf; airborne methods; Antarctic Peninsula; Antarctica; bottom currents; currents; Global Positioning System; ice streams; imagery; Larsen Ice Shelf; marine environment; radar methods; sea ice; Weddell Deep Water |
| Abstract | It is argued that Larsen Ice Shelf contains marine ice formed by oceanic freezing and other mechanisms. Missing basal returns in airborne radar soundings and observations of a smooth and healed surface coincide downstream of regions where an ocean model predicts freezing. Visible imagery suggests that marine ice currently stabilizes Larsen C Ice Shelf and implicates failure of marine flow bands in the 2002 Larsen B Ice Shelf collapse. Ocean modeling indicates that any regime change towards the incursion of warmer Modified Weddell Deep Water into the Larsen C cavity could curtail basal freezing and its stabilizing influence. |
| URL | http://hdl.handle.net/10.1029/2009GL038162 |
| Publication Type | journal article |
| Record ID | 88872 |