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Global Change Master Directory (GCMD)
Collaborative Research: Decoding & Predicting Antarctic Surface Melt Dynamics with Observations, Regional Atmospheric Modeling and GCMs
Entry ID: NSF-ANT10-43580


Summary
Abstract: The presence of ice ponds from surface melting of glacial ice can be a significant threshold in assessing the stability of ice sheets, and their overall response to a warming climate. Snow melt has a much reduced albedo, leading to additional seasonal melting from warming insolation. Water run-off not only contributes to the mass loss of ice sheets directly, but meltwater reaching the glacial ice bed may lubricate faster flow of ice sheets towards the ocean. Surficial meltwater may also reach the grounding lines of glacial ice through the wedging open of existing crevasses. The occurrence and amount of meltwater refreeze has even been suggested as a paleo proxy of near-surface atmospheric temperature regimes.
Using contemporary remote sensing (microwave) satellite assessment of surface melt occurrence and extent, the predictive skill of regional meteorological models and reanalyses (e.g. WRF, ERA-Interim) to describe the synoptic conditions favourable to surficial melt is to be investigated. Statistical approaches and pattern recognition techniques are argued to provide a context for projecting future ice sheet change.
The previous Intergovernmental Panel on Climate Change (IPCC AR4) commented on our lack of understanding of ice-sheet mass balance processes in polar regions and the potential for sea-level change. The IPPC suggested that the forthcoming AR5 efforts highlight regional cryosphere modeling efforts, such as is proposed here.

Related URL
Link: View Related Information
Description: NSF Award Abstract #1043580


Link: View Related Information
Description: Original data submitted.

Geographic Coverage
 N: -47.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Version: Not provided


Temporal Coverage
Start Date: 2011-04-15
Stop Date: 2015-03-31


Location Keywords
CONTINENT > ANTARCTICA
VERTICAL LOCATION > LAND SURFACE
GEOGRAPHIC REGION > POLAR
VERTICAL LOCATION > TROPOSPHERE


Science Keywords
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SURFACE PRESSURE    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SEA LEVEL PRESSURE    [Definition]


Project
NSF/PLR >Division of Polar Programs, National Science Foundation    [Information]


Data Set Progress
COMPLETE


Data Center
United States Antarctic Program Data Center    [Information]
Data Center URL: http://www.usap-dc.org/

Data Center Personnel
Name: ROBERT A. ARKO
Email: info at usap-data.org
Contact Address:
Lamont-Doherty Earth Observatory
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA


Personnel
DAVID REUSCH
Role: INVESTIGATOR
Email: david.reusch at nmt.edu
Contact Address:
New Mexico Institute of Mining and Technology
City: Socorro
Province or State: NM
Postal Code: 87801
Country: US


DERRICK LAMPKIN
Role: INVESTIGATOR
Contact Address:
New Mexico Institute of Mining and Technology
City: Socorro
Province or State: NM
Postal Code: 87801
Country: US


Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2016-07-28
Last DIF Revision Date: 2018-11-13



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