Analysis of Ice Plains of Filchner/Ronne Ice Shelf Using ICESat Data
We use repeat-track laser altimeter data from the Ice, Cloud, and land Elevation Satellite (ICESat) to map the grounding zone of Filchner/Ronne Ice Shelf (FRIS), Antarctica. Repeated passes of ICESat reveal ice flexure in the grounding zone occurs as the ice shelf responds to ocean height changes du...
Main Authors: | , , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
2010
|
Subjects: | |
Online Access: | http://hdl.handle.net/2060/20110005591 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:20110005591 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:20110005591 2023-05-15T13:43:16+02:00 Analysis of Ice Plains of Filchner/Ronne Ice Shelf Using ICESat Data Brunt, Kelly M. Fricker, Helen A. Padman, Laurie Unclassified, Unlimited, Publicly available September 22, 2010 application/pdf http://hdl.handle.net/2060/20110005591 unknown Document ID: 20110005591 http://hdl.handle.net/2060/20110005591 Copyright, Distribution as joint owner in the copyright CASI Meteorology and Climatology Seventeenth Annual WAIS Workshop; 22-25 Sep. 2010; Raystown, PA; United States 2010 ftnasantrs 2019-07-21T01:07:16Z We use repeat-track laser altimeter data from the Ice, Cloud, and land Elevation Satellite (ICESat) to map the grounding zone of Filchner/Ronne Ice Shelf (FRIS), Antarctica. Repeated passes of ICESat reveal ice flexure in the grounding zone occurs as the ice shelf responds to ocean height changes due primarily to tides. In the course of our mapping, we have confirmed or identified three major "ice plains", regions of low surface slope near the GZ where the ice is close to hydrostatic equilibrium: one on Institute Ice Stream, another to its east, and another west of Foundation Ice Stream. The vertical information from repeated ICESat tracks enables us to study the topography and flexure characteristics across these three ice plains, and we use this to develop a classification scheme for ice plains based on their surface topography and their state of flotation. We show that one of these ice plains indicates changes in lateral extent on short time-scales, depending on the state of the ocean tide. Understanding the location and nature of ice plains is important for ice sheet modeling, since they add uncertainty to the absolute boundary between floating and grounded ice. Other/Unknown Material Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Foundation Ice Stream Ice Sheet Ice Shelf Institute Ice Stream Ronne Ice Shelf NASA Technical Reports Server (NTRS) Ronne Ice Shelf ENVELOPE(-61.000,-61.000,-78.500,-78.500) Foundation Ice Stream ENVELOPE(-60.000,-60.000,-83.250,-83.250) Institute Ice Stream ENVELOPE(-75.000,-75.000,-82.000,-82.000) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Brunt, Kelly M. Fricker, Helen A. Padman, Laurie Analysis of Ice Plains of Filchner/Ronne Ice Shelf Using ICESat Data |
topic_facet |
Meteorology and Climatology |
description |
We use repeat-track laser altimeter data from the Ice, Cloud, and land Elevation Satellite (ICESat) to map the grounding zone of Filchner/Ronne Ice Shelf (FRIS), Antarctica. Repeated passes of ICESat reveal ice flexure in the grounding zone occurs as the ice shelf responds to ocean height changes due primarily to tides. In the course of our mapping, we have confirmed or identified three major "ice plains", regions of low surface slope near the GZ where the ice is close to hydrostatic equilibrium: one on Institute Ice Stream, another to its east, and another west of Foundation Ice Stream. The vertical information from repeated ICESat tracks enables us to study the topography and flexure characteristics across these three ice plains, and we use this to develop a classification scheme for ice plains based on their surface topography and their state of flotation. We show that one of these ice plains indicates changes in lateral extent on short time-scales, depending on the state of the ocean tide. Understanding the location and nature of ice plains is important for ice sheet modeling, since they add uncertainty to the absolute boundary between floating and grounded ice. |
format |
Other/Unknown Material |
author |
Brunt, Kelly M. Fricker, Helen A. Padman, Laurie |
author_facet |
Brunt, Kelly M. Fricker, Helen A. Padman, Laurie |
author_sort |
Brunt, Kelly M. |
title |
Analysis of Ice Plains of Filchner/Ronne Ice Shelf Using ICESat Data |
title_short |
Analysis of Ice Plains of Filchner/Ronne Ice Shelf Using ICESat Data |
title_full |
Analysis of Ice Plains of Filchner/Ronne Ice Shelf Using ICESat Data |
title_fullStr |
Analysis of Ice Plains of Filchner/Ronne Ice Shelf Using ICESat Data |
title_full_unstemmed |
Analysis of Ice Plains of Filchner/Ronne Ice Shelf Using ICESat Data |
title_sort |
analysis of ice plains of filchner/ronne ice shelf using icesat data |
publishDate |
2010 |
url |
http://hdl.handle.net/2060/20110005591 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(-61.000,-61.000,-78.500,-78.500) ENVELOPE(-60.000,-60.000,-83.250,-83.250) ENVELOPE(-75.000,-75.000,-82.000,-82.000) |
geographic |
Ronne Ice Shelf Foundation Ice Stream Institute Ice Stream |
geographic_facet |
Ronne Ice Shelf Foundation Ice Stream Institute Ice Stream |
genre |
Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Foundation Ice Stream Ice Sheet Ice Shelf Institute Ice Stream Ronne Ice Shelf |
genre_facet |
Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Foundation Ice Stream Ice Sheet Ice Shelf Institute Ice Stream Ronne Ice Shelf |
op_source |
CASI |
op_relation |
Document ID: 20110005591 http://hdl.handle.net/2060/20110005591 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766186523930132480 |