Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I
Abstract
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.
- Authors:
-
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- Code 615, NASA Goddard Space Flight Center, Greenbelt Maryland USA
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa Chiba Japan
- Geophysical Institute, University of Alaska, Fairbanks Arkansas USA
- Sigma Space Corporation, Lanham Maryland USA
- Computer Science/Quaternary Institute, University of Maine, Orono Maine USA
- College of Arts and Sciences, The University of Montana, Missoula Montana USA
- Institute of Low Temperature Science, Hokkaido University, Sapporo Japan
- Institute for Geophysics, The University of Texas at Austin, Austin Texas USA
- Department of Electrical, Computer and Energy Engineering and Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder Colorado USA
- Jet Propulsion Laboratory-California Institute of Technology, Pasadena California USA
- Potsdam Institute for Climate Research, Potsdam Germany
- Los Alamos National Laboratory, Los Alamos New Mexico USA
- Department of Earth System Science, University of California, Irvine, Irvine California USA
- Mathematics and Geoscience, Penn State DuBois, College Place, DuBois Pennsylvania USA
- Earth and Environmental Systems Institute, Pennsylvania State University, University Park, Pennsylvania USA
- Department of Physics, Curtin University of Technology, Perth Australia
- Jet Propulsion Laboratory-California Institute of Technology, Pasadena California USA; Department of Earth System Science, University of California, Irvine, Irvine California USA
- Japan Agency for Marine-Earth Science and Technology, Research Institute for Global Change, 3173-25 Showamachi, Kanazawa, Yokohama Kanagawa Japan
- Code 615, NASA Goddard Space Flight Center, Greenbelt Maryland USA; Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland USA
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Univ. of California, Oakland, CA (United States); UT-Battelle LLC/ORNL, Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- Contributing Org.:
- SeaRISE Collaboration
- OSTI Identifier:
- 1564937
- Grant/Contract Number:
- AC02-05CH11231; AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Geophysical Research. Earth Surface
- Additional Journal Information:
- Journal Volume: 118; Journal Issue: 2; Journal ID: ISSN 2169-9003
- Publisher:
- American Geophysical Union
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Geology
Citation Formats
Nowicki, Sophie, Bindschadler, Robert A., Abe-Ouchi, Ayako, Aschwanden, Andy, Bueler, Ed, Choi, Hyeungu, Fastook, Jim, Granzow, Glen, Greve, Ralf, Gutowski, Gail, Herzfeld, Ute, Jackson, Charles, Johnson, Jesse, Khroulev, Constantine, Larour, Eric, Levermann, Anders, Lipscomb, William H., Martin, Maria A., Morlighem, Mathieu, Parizek, Byron R., Pollard, David, Price, Stephen F., Ren, Diandong, Rignot, Eric, Saito, Fuyuki, Sato, Tatsuru, Seddik, Hakime, Seroussi, Helene, Takahashi, Kunio, Walker, Ryan, and Wang, Wei Li. Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I. United States: N. p., 2013.
Web. doi:10.1002/jgrf.20081.
Nowicki, Sophie, Bindschadler, Robert A., Abe-Ouchi, Ayako, Aschwanden, Andy, Bueler, Ed, Choi, Hyeungu, Fastook, Jim, Granzow, Glen, Greve, Ralf, Gutowski, Gail, Herzfeld, Ute, Jackson, Charles, Johnson, Jesse, Khroulev, Constantine, Larour, Eric, Levermann, Anders, Lipscomb, William H., Martin, Maria A., Morlighem, Mathieu, Parizek, Byron R., Pollard, David, Price, Stephen F., Ren, Diandong, Rignot, Eric, Saito, Fuyuki, Sato, Tatsuru, Seddik, Hakime, Seroussi, Helene, Takahashi, Kunio, Walker, Ryan, & Wang, Wei Li. Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I. United States. https://doi.org/10.1002/jgrf.20081
Nowicki, Sophie, Bindschadler, Robert A., Abe-Ouchi, Ayako, Aschwanden, Andy, Bueler, Ed, Choi, Hyeungu, Fastook, Jim, Granzow, Glen, Greve, Ralf, Gutowski, Gail, Herzfeld, Ute, Jackson, Charles, Johnson, Jesse, Khroulev, Constantine, Larour, Eric, Levermann, Anders, Lipscomb, William H., Martin, Maria A., Morlighem, Mathieu, Parizek, Byron R., Pollard, David, Price, Stephen F., Ren, Diandong, Rignot, Eric, Saito, Fuyuki, Sato, Tatsuru, Seddik, Hakime, Seroussi, Helene, Takahashi, Kunio, Walker, Ryan, and Wang, Wei Li. Mon .
"Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I". United States. https://doi.org/10.1002/jgrf.20081. https://www.osti.gov/servlets/purl/1564937.
@article{osti_1564937,
title = {Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I},
author = {Nowicki, Sophie and Bindschadler, Robert A. and Abe-Ouchi, Ayako and Aschwanden, Andy and Bueler, Ed and Choi, Hyeungu and Fastook, Jim and Granzow, Glen and Greve, Ralf and Gutowski, Gail and Herzfeld, Ute and Jackson, Charles and Johnson, Jesse and Khroulev, Constantine and Larour, Eric and Levermann, Anders and Lipscomb, William H. and Martin, Maria A. and Morlighem, Mathieu and Parizek, Byron R. and Pollard, David and Price, Stephen F. and Ren, Diandong and Rignot, Eric and Saito, Fuyuki and Sato, Tatsuru and Seddik, Hakime and Seroussi, Helene and Takahashi, Kunio and Walker, Ryan and Wang, Wei Li},
abstractNote = {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.},
doi = {10.1002/jgrf.20081},
journal = {Journal of Geophysical Research. Earth Surface},
number = 2,
volume = 118,
place = {United States},
year = {Mon May 06 00:00:00 EDT 2013},
month = {Mon May 06 00:00:00 EDT 2013}
}
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