Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica
We use satellite imagery from four sensors (Multi-angle Imaging SpectroRadiometer (MISR), Enhanced Thematic Mapper (ETM), and RADARSAT and ERS Synthetic Aperture Radar (SAR) to monitor the lengths of two rifts on the Amery Ice Shelf, from 1996 to 2004. We find that the rifts have each been propagati...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2005
|
Subjects: | |
Online Access: | https://eprints.utas.edu.au/8372/ https://eprints.utas.edu.au/8372/1/Fricker_2005.pdf https://doi.org/10.1029/2004GL021036 |
id |
ftunivtasmania:oai:eprints.utas.edu.au:8372 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasmania:oai:eprints.utas.edu.au:8372 2023-05-15T13:21:57+02:00 Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica Fricker, HA Young, NW Coleman, R Bassis, JN Minster, JB 2005-01-25 application/pdf https://eprints.utas.edu.au/8372/ https://eprints.utas.edu.au/8372/1/Fricker_2005.pdf https://doi.org/10.1029/2004GL021036 en eng https://eprints.utas.edu.au/8372/1/Fricker_2005.pdf Fricker, HA, Young, NW, Coleman, R, Bassis, JN and Minster, JB 2005 , 'Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica' , Geophysical Research Letters, vol. 32, no. 2 , L02505 , doi:10.1029/2004GL021036. <http://dx.doi.org/10.1029/2004GL021036.>. cc_utas glaciology snow and ice modelling Amery Ice Shelf Article PeerReviewed 2005 ftunivtasmania https://doi.org/10.1029/2004GL021036 2020-05-30T07:22:12Z We use satellite imagery from four sensors (Multi-angle Imaging SpectroRadiometer (MISR), Enhanced Thematic Mapper (ETM), and RADARSAT and ERS Synthetic Aperture Radar (SAR) to monitor the lengths of two rifts on the Amery Ice Shelf, from 1996 to 2004. We find that the rifts have each been propagating at a steady annual rate for the past 5 years. Superimposed on this steady rate is a seasonal signal, where propagation rates are significantly higher in the summer period (i.e., September–April) than in the winter period (i.e., April–September). Possible causes of this summer-winter effect are changing properties of the ice mélange, which fills the rifts, and seasonal changes in ocean circulation beneath the ice shelf Article in Journal/Newspaper Amery Ice Shelf Antarc* Antarctica East Antarctica Ice Shelf University of Tasmania: UTas ePrints East Antarctica Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) Geophysical Research Letters 32 2 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
glaciology snow and ice modelling Amery Ice Shelf |
spellingShingle |
glaciology snow and ice modelling Amery Ice Shelf Fricker, HA Young, NW Coleman, R Bassis, JN Minster, JB Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica |
topic_facet |
glaciology snow and ice modelling Amery Ice Shelf |
description |
We use satellite imagery from four sensors (Multi-angle Imaging SpectroRadiometer (MISR), Enhanced Thematic Mapper (ETM), and RADARSAT and ERS Synthetic Aperture Radar (SAR) to monitor the lengths of two rifts on the Amery Ice Shelf, from 1996 to 2004. We find that the rifts have each been propagating at a steady annual rate for the past 5 years. Superimposed on this steady rate is a seasonal signal, where propagation rates are significantly higher in the summer period (i.e., September–April) than in the winter period (i.e., April–September). Possible causes of this summer-winter effect are changing properties of the ice mélange, which fills the rifts, and seasonal changes in ocean circulation beneath the ice shelf |
format |
Article in Journal/Newspaper |
author |
Fricker, HA Young, NW Coleman, R Bassis, JN Minster, JB |
author_facet |
Fricker, HA Young, NW Coleman, R Bassis, JN Minster, JB |
author_sort |
Fricker, HA |
title |
Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica |
title_short |
Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica |
title_full |
Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica |
title_fullStr |
Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica |
title_full_unstemmed |
Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica |
title_sort |
multi-year monitoring of rift propagation on the amery ice shelf, east antarctica |
publishDate |
2005 |
url |
https://eprints.utas.edu.au/8372/ https://eprints.utas.edu.au/8372/1/Fricker_2005.pdf https://doi.org/10.1029/2004GL021036 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) |
geographic |
East Antarctica Amery Amery Ice Shelf |
geographic_facet |
East Antarctica Amery Amery Ice Shelf |
genre |
Amery Ice Shelf Antarc* Antarctica East Antarctica Ice Shelf |
genre_facet |
Amery Ice Shelf Antarc* Antarctica East Antarctica Ice Shelf |
op_relation |
https://eprints.utas.edu.au/8372/1/Fricker_2005.pdf Fricker, HA, Young, NW, Coleman, R, Bassis, JN and Minster, JB 2005 , 'Multi-year monitoring of rift propagation on the Amery Ice Shelf, East Antarctica' , Geophysical Research Letters, vol. 32, no. 2 , L02505 , doi:10.1029/2004GL021036. <http://dx.doi.org/10.1029/2004GL021036.>. |
op_rights |
cc_utas |
op_doi |
https://doi.org/10.1029/2004GL021036 |
container_title |
Geophysical Research Letters |
container_volume |
32 |
container_issue |
2 |
_version_ |
1766362399749701632 |