In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard
CryoSat-2's radar altimeter allows to observe the panArctic sea ice thickness up to 88°N on a monthly basis. However, calibration and validation are crucial to assess limitations and accuracy of the altimeter, and to better quantify the uncertainties involved in converting sea ice freeboard to...
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2013
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ftdtupubl:oai:pure.atira.dk:publications/ce91fd1a-95a8-4a5e-8808-b0db49658d3c 2023-05-15T14:26:59+02:00 In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard Gerland, Sebastian Renner, Angelika H. H. Spreen, Gunnar Caixin Wang, Beckers, Justin Dumont, Marie Granskog, Mats A. Haapala, Jari Haas, Christian Helm, Veit Hudson, Stephen R. Lensu, Mikko Ricker, Robert Sandven, Stein Skourup, Henriette Zygmuntowska, Marta 2013 https://orbit.dtu.dk/en/publications/ce91fd1a-95a8-4a5e-8808-b0db49658d3c eng eng info:eu-repo/semantics/restrictedAccess Gerland , S , Renner , A H H , Spreen , G , Caixin Wang , Beckers , J , Dumont , M , Granskog , M A , Haapala , J , Haas , C , Helm , V , Hudson , S R , Lensu , M , Ricker , R , Sandven , S , Skourup , H & Zygmuntowska , M 2013 , ' In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard ' , CryoSat Third User Workshop , Dresden , Germany , 12/03/2013 - 14/03/2013 . conferenceObject 2013 ftdtupubl 2022-08-14T08:17:59Z CryoSat-2's radar altimeter allows to observe the panArctic sea ice thickness up to 88°N on a monthly basis. However, calibration and validation are crucial to assess limitations and accuracy of the altimeter, and to better quantify the uncertainties involved in converting sea ice freeboard to thickness. We conducted four ship-based campaigns 2010-2012 to the pack ice north of Svalbard. Detailed in situ measurements of snow and ice thickness, freeboard, and snow stratigraphy and density were performed. The data were integrated with satellite data, airborne ice thickness observations, and aerial photography. Measurements from a Twin-Otter aircraft carrying a laser scanner and the CryoSat airborne simulator ASIRAS were obtained over one sea ice station. Here we discuss effects of snow properties on the penetration of the radar signal into the snow pack, along with in-situ, helicopter, and aircraft measurements for satellite calibration and validation purposes, based on results from two cruises in 2011. Conference Object Arctic Arctic Sea ice Svalbard Technical University of Denmark: DTU Orbit Arctic Svalbard |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
CryoSat-2's radar altimeter allows to observe the panArctic sea ice thickness up to 88°N on a monthly basis. However, calibration and validation are crucial to assess limitations and accuracy of the altimeter, and to better quantify the uncertainties involved in converting sea ice freeboard to thickness. We conducted four ship-based campaigns 2010-2012 to the pack ice north of Svalbard. Detailed in situ measurements of snow and ice thickness, freeboard, and snow stratigraphy and density were performed. The data were integrated with satellite data, airborne ice thickness observations, and aerial photography. Measurements from a Twin-Otter aircraft carrying a laser scanner and the CryoSat airborne simulator ASIRAS were obtained over one sea ice station. Here we discuss effects of snow properties on the penetration of the radar signal into the snow pack, along with in-situ, helicopter, and aircraft measurements for satellite calibration and validation purposes, based on results from two cruises in 2011. |
format |
Conference Object |
author |
Gerland, Sebastian Renner, Angelika H. H. Spreen, Gunnar Caixin Wang, Beckers, Justin Dumont, Marie Granskog, Mats A. Haapala, Jari Haas, Christian Helm, Veit Hudson, Stephen R. Lensu, Mikko Ricker, Robert Sandven, Stein Skourup, Henriette Zygmuntowska, Marta |
spellingShingle |
Gerland, Sebastian Renner, Angelika H. H. Spreen, Gunnar Caixin Wang, Beckers, Justin Dumont, Marie Granskog, Mats A. Haapala, Jari Haas, Christian Helm, Veit Hudson, Stephen R. Lensu, Mikko Ricker, Robert Sandven, Stein Skourup, Henriette Zygmuntowska, Marta In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard |
author_facet |
Gerland, Sebastian Renner, Angelika H. H. Spreen, Gunnar Caixin Wang, Beckers, Justin Dumont, Marie Granskog, Mats A. Haapala, Jari Haas, Christian Helm, Veit Hudson, Stephen R. Lensu, Mikko Ricker, Robert Sandven, Stein Skourup, Henriette Zygmuntowska, Marta |
author_sort |
Gerland, Sebastian |
title |
In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard |
title_short |
In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard |
title_full |
In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard |
title_fullStr |
In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard |
title_full_unstemmed |
In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard |
title_sort |
in-situ calibration and validation of cryosat-2 observations over arctic sea ice north of svalbard |
publishDate |
2013 |
url |
https://orbit.dtu.dk/en/publications/ce91fd1a-95a8-4a5e-8808-b0db49658d3c |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic Sea ice Svalbard |
genre_facet |
Arctic Arctic Sea ice Svalbard |
op_source |
Gerland , S , Renner , A H H , Spreen , G , Caixin Wang , Beckers , J , Dumont , M , Granskog , M A , Haapala , J , Haas , C , Helm , V , Hudson , S R , Lensu , M , Ricker , R , Sandven , S , Skourup , H & Zygmuntowska , M 2013 , ' In-situ calibration and validation of Cryosat-2 observations over arctic sea ice north of Svalbard ' , CryoSat Third User Workshop , Dresden , Germany , 12/03/2013 - 14/03/2013 . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766300535807279104 |