Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007)
In order to ensure long-term climate records, ESA has launched the Climate Change Initiative (ESA CCI), which puts focus on 13 different Essential Climate Variables, one of them being Ice Sheets. In this program, four selected key parameters will be determined for the Greenland Ice Sheet: Surface el...
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ftdtupubl:oai:pure.atira.dk:publications/5110d44b-1c31-4e0b-a721-5014214b2a4e 2023-05-15T16:27:52+02:00 Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) Fredenslund Levinsen, Joanna Khvorostovsky, Kirill Ticconi, Francesca 2013 application/pdf https://orbit.dtu.dk/en/publications/5110d44b-1c31-4e0b-a721-5014214b2a4e https://backend.orbit.dtu.dk/ws/files/73257927/EGU_2013_JFL.pdf eng eng info:eu-repo/semantics/openAccess Fredenslund Levinsen , J , Khvorostovsky , K & Ticconi , F 2013 , ' Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) ' , European Geosciences Union General Assembly 2013 , Vienna , Austria , 07/04/2013 - 12/04/2013 . /dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action conferenceObject 2013 ftdtupubl 2022-08-14T08:17:08Z In order to ensure long-term climate records, ESA has launched the Climate Change Initiative (ESA CCI), which puts focus on 13 different Essential Climate Variables, one of them being Ice Sheets. In this program, four selected key parameters will be determined for the Greenland Ice Sheet: Surface elevation changes (SEC), surface velocities, calving front locations, and grounding line locations. This work focuses on SEC, and the goal is to develop the best routine for estimating this by means of radar altimetry. In order to find the most optimal approach we have completed a Round Robin experiment (RR) in which researchers from various European and US institutions have provided SEC estimates derived from either Envisat radar or ICESat laser altimeter data. The test area was Jakobshavn Isbræ drainage basin, and by analyzing, inter-comparing and validating the results, we have found that a combination of repeat-track and cross-over analyses will result in SEC estimates with a high spatial resolution and low error estimates. Conference Object Greenland Ice Sheet Jakobshavn Jakobshavn isbræ Technical University of Denmark: DTU Orbit Greenland Jakobshavn Isbræ ENVELOPE(-49.917,-49.917,69.167,69.167) |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
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ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action Fredenslund Levinsen, Joanna Khvorostovsky, Kirill Ticconi, Francesca Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action |
description |
In order to ensure long-term climate records, ESA has launched the Climate Change Initiative (ESA CCI), which puts focus on 13 different Essential Climate Variables, one of them being Ice Sheets. In this program, four selected key parameters will be determined for the Greenland Ice Sheet: Surface elevation changes (SEC), surface velocities, calving front locations, and grounding line locations. This work focuses on SEC, and the goal is to develop the best routine for estimating this by means of radar altimetry. In order to find the most optimal approach we have completed a Round Robin experiment (RR) in which researchers from various European and US institutions have provided SEC estimates derived from either Envisat radar or ICESat laser altimeter data. The test area was Jakobshavn Isbræ drainage basin, and by analyzing, inter-comparing and validating the results, we have found that a combination of repeat-track and cross-over analyses will result in SEC estimates with a high spatial resolution and low error estimates. |
format |
Conference Object |
author |
Fredenslund Levinsen, Joanna Khvorostovsky, Kirill Ticconi, Francesca |
author_facet |
Fredenslund Levinsen, Joanna Khvorostovsky, Kirill Ticconi, Francesca |
author_sort |
Fredenslund Levinsen, Joanna |
title |
Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) |
title_short |
Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) |
title_full |
Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) |
title_fullStr |
Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) |
title_full_unstemmed |
Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) |
title_sort |
validation and inter-comparison of surface elevation changes derived from altimetry over the jakobshavn isbræ drainage basin, greenland – round robin results from esa's ice_sheets_cci (id #egu2013-6007) |
publishDate |
2013 |
url |
https://orbit.dtu.dk/en/publications/5110d44b-1c31-4e0b-a721-5014214b2a4e https://backend.orbit.dtu.dk/ws/files/73257927/EGU_2013_JFL.pdf |
long_lat |
ENVELOPE(-49.917,-49.917,69.167,69.167) |
geographic |
Greenland Jakobshavn Isbræ |
geographic_facet |
Greenland Jakobshavn Isbræ |
genre |
Greenland Ice Sheet Jakobshavn Jakobshavn isbræ |
genre_facet |
Greenland Ice Sheet Jakobshavn Jakobshavn isbræ |
op_source |
Fredenslund Levinsen , J , Khvorostovsky , K & Ticconi , F 2013 , ' Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007) ' , European Geosciences Union General Assembly 2013 , Vienna , Austria , 07/04/2013 - 12/04/2013 . |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766017438205345792 |