Surface elevation changes of the greenland ice sheet - results from ESA'S ice sheet CCI

Joanna Fredenslund Levinsen, Kirill Khvorostovky, Rakia Meister, Louise Sandberg Sørensen, Francesca Ticconi, René Forsberg, Andrew Shepherd

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

Abstract

In order to ensure long-term climate data records for the Greenland Ice Sheet (GIS), ESA have launched the Climate Change Initiative (CCI). This work presents the preliminary steps towards the Ice Sheet CCI's surface elevation change (SEC) derivation using radar altimeter data. In order to find the most optimal method, a Round Robin exercise was conducted in which the scientific community was asked to provide their best SEC estimate over the Jakobshavn Isbr drainage basin. The participants used both repeat-track (RT), overlapping footprints, and the cross-over (XO) methods, and both ICESat laser and Envisat radar altimeter data were used. Based on this and feedback sheets describing their methods we found that a combination of the RT and XO techniques yielded the best results. In the following, the obtained results will be presented and discussed.
Original languageEnglish
Title of host publication Proceedings of ESA Living Planet Symposium
PublisherEuropean Space Agency
Publication date2013
Publication statusPublished - 2013
EventESA Living Planet Symposium — 2013 - Edinburgh, United Kingdom
Duration: 9 Sep 201313 Sep 2013

Conference

ConferenceESA Living Planet Symposium — 2013
CountryUnited Kingdom
CityEdinburgh
Period09/09/201313/09/2013

Cite this

Fredenslund Levinsen, J., Khvorostovky, K., Meister, R., Sørensen, L. S., Ticconi, F., Forsberg, R., & Shepherd, A. (2013). Surface elevation changes of the greenland ice sheet - results from ESA'S ice sheet CCI. In Proceedings of ESA Living Planet Symposium European Space Agency.
Fredenslund Levinsen, Joanna ; Khvorostovky, Kirill ; Meister, Rakia ; Sørensen, Louise Sandberg ; Ticconi, Francesca ; Forsberg, René ; Shepherd, Andrew. / Surface elevation changes of the greenland ice sheet - results from ESA'S ice sheet CCI. Proceedings of ESA Living Planet Symposium. European Space Agency, 2013.
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abstract = "In order to ensure long-term climate data records for the Greenland Ice Sheet (GIS), ESA have launched the Climate Change Initiative (CCI). This work presents the preliminary steps towards the Ice Sheet CCI's surface elevation change (SEC) derivation using radar altimeter data. In order to find the most optimal method, a Round Robin exercise was conducted in which the scientific community was asked to provide their best SEC estimate over the Jakobshavn Isbr drainage basin. The participants used both repeat-track (RT), overlapping footprints, and the cross-over (XO) methods, and both ICESat laser and Envisat radar altimeter data were used. Based on this and feedback sheets describing their methods we found that a combination of the RT and XO techniques yielded the best results. In the following, the obtained results will be presented and discussed.",
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Fredenslund Levinsen, J, Khvorostovky, K, Meister, R, Sørensen, LS, Ticconi, F, Forsberg, R & Shepherd, A 2013, Surface elevation changes of the greenland ice sheet - results from ESA'S ice sheet CCI. in Proceedings of ESA Living Planet Symposium. European Space Agency, ESA Living Planet Symposium — 2013, Edinburgh, United Kingdom, 09/09/2013.

Surface elevation changes of the greenland ice sheet - results from ESA'S ice sheet CCI. / Fredenslund Levinsen, Joanna; Khvorostovky, Kirill; Meister, Rakia; Sørensen, Louise Sandberg; Ticconi, Francesca; Forsberg, René; Shepherd, Andrew.

Proceedings of ESA Living Planet Symposium. European Space Agency, 2013.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

TY - ABST

T1 - Surface elevation changes of the greenland ice sheet - results from ESA'S ice sheet CCI

AU - Fredenslund Levinsen, Joanna

AU - Khvorostovky, Kirill

AU - Meister, Rakia

AU - Sørensen, Louise Sandberg

AU - Ticconi, Francesca

AU - Forsberg, René

AU - Shepherd, Andrew

PY - 2013

Y1 - 2013

N2 - In order to ensure long-term climate data records for the Greenland Ice Sheet (GIS), ESA have launched the Climate Change Initiative (CCI). This work presents the preliminary steps towards the Ice Sheet CCI's surface elevation change (SEC) derivation using radar altimeter data. In order to find the most optimal method, a Round Robin exercise was conducted in which the scientific community was asked to provide their best SEC estimate over the Jakobshavn Isbr drainage basin. The participants used both repeat-track (RT), overlapping footprints, and the cross-over (XO) methods, and both ICESat laser and Envisat radar altimeter data were used. Based on this and feedback sheets describing their methods we found that a combination of the RT and XO techniques yielded the best results. In the following, the obtained results will be presented and discussed.

AB - In order to ensure long-term climate data records for the Greenland Ice Sheet (GIS), ESA have launched the Climate Change Initiative (CCI). This work presents the preliminary steps towards the Ice Sheet CCI's surface elevation change (SEC) derivation using radar altimeter data. In order to find the most optimal method, a Round Robin exercise was conducted in which the scientific community was asked to provide their best SEC estimate over the Jakobshavn Isbr drainage basin. The participants used both repeat-track (RT), overlapping footprints, and the cross-over (XO) methods, and both ICESat laser and Envisat radar altimeter data were used. Based on this and feedback sheets describing their methods we found that a combination of the RT and XO techniques yielded the best results. In the following, the obtained results will be presented and discussed.

M3 - Conference abstract in proceedings

BT - Proceedings of ESA Living Planet Symposium

PB - European Space Agency

ER -

Fredenslund Levinsen J, Khvorostovky K, Meister R, Sørensen LS, Ticconi F, Forsberg R et al. Surface elevation changes of the greenland ice sheet - results from ESA'S ice sheet CCI. In Proceedings of ESA Living Planet Symposium. European Space Agency. 2013