| タイトル | Insights into Spatial Sensitivities of Ice Mass Response to Environmental Change from the SeaRISE Ice Sheet Modeling Project I: Antarctica |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140009622 |
| 著者（英） | Nowicki, Sophie; Price, Stephen F.; Herzfeld, Ute; Pollard, David; Gutowski, Gail; Choi, Hyengu; Walker, Ryan; Fastook, Jim; Seroussi, Helene; Martin, Maria A.; Johnson, Jesse; Larour, Eric; Khroulev, Constantine; Wang, Wei Li; Bueler, Ed; Levermann, Anders; Abe-Ouchi, Ayako; Greve, Ralf; Aschwanden, Andy; Jacskon, Charles; Bindschadler, Robert A.; Lipscomb, William H.; Morlighem, Mathieu; Granzow, Glen; Parizek, Byron R |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2013-06-01 |
| 言語 | eng |
| 内容記述 | Atmospheric, oceanic, and subglacial forcing scenarios from the Sea-level Response to Ice Sheet Evolution (SeaRISE) project are applied to six three-dimensional thermomechanical ice-sheet models to assess Antarctic ice sheet sensitivity over a 500 year timescale and to inform future modeling and field studies. Results indicate (i) growth with warming, except within low-latitude basins (where inland thickening is outpaced by marginal thinning); (ii) mass loss with enhanced sliding (with basins dominated by high driving stresses affected more than basins with low-surface-slope streaming ice); and (iii) mass loss with enhanced ice shelf melting (with changes in West Antarctica dominating the signal due to its marine setting and extensive ice shelves; cf. minimal impact in the Terre Adelie, George V, Oates, and Victoria Land region of East Antarctica). Ice loss due to dynamic changes associated with enhanced sliding and/or sub-shelf melting exceeds the gain due to increased precipitation. Furthermore, differences in results between and within basins as well as the controlling impact of sub-shelf melting on ice dynamics highlight the need for improved understanding of basal conditions, grounding-zone processes, ocean-ice interactions, and the numerical representation of all three. |
| NASA分類 | Geosciences (General) |
| レポートNO | GSFC-E-DAA-TN9769 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
|
