Validation of Satellite Cryosphere Altimetry with Airborne Surveys – Results of CryoVEx Campaigns

S. Hvidegaard, H. Skourup, R. Forsberg, T. Casal, M. Davidson

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Abstract

In preparations for the first CryoSat mission ESA initiated a series of validations campaigns called CryoVEx – CryoSat Validation Experiment. For the first time DTU Space carried out a validation campaign in 2003 and continued in the following years with several pre-launch experiment followed by the first direct validation campaign in spring 2011 after the successful launch of CryoSat-2 in 2010. Since then validation experiments have been carried out both in the Arctic and Antarctic with different instrumental setup. The performance of CryoSat-2 has been validated using an airborne version of the SIRAL altimeter (ASIRAS, manufactured by Radar System Technology) combined with laser scanner altimeter observations together with e.g visual imagery. Also in the very recent campaigns a Ka-band radar system (KAREN) manufactured by MetaSensing has been added to the observations providing the opportunity to collect coincident dual frequency radar altimetry. Combined with in situ observations on ground at selected validations sites, these airborne observations provide a unique dataset of observations coincident in time and space of surface elevations and elevation changes for validation of the CryoSat products. These data have been used for studies that asses the accuracy and error sources of CryoSat-2 (e.g. the CryoVal sea ice and land ice projects). The presentation will give an overview of the airborne campaigns and summarize the main results obtained with the datasets gathered.
Original languageEnglish
Publication date2018
Publication statusPublished - 2018
Event25 years of progress in radar altimetry symposium - , Portugal
Duration: 24 Sep 201829 Sep 2018

Conference

Conference25 years of progress in radar altimetry symposium
CountryPortugal
Period24/09/201829/09/2018

Cite this

Hvidegaard, S., Skourup, H., Forsberg, R., Casal, T., & Davidson, M. (2018). Validation of Satellite Cryosphere Altimetry with Airborne Surveys – Results of CryoVEx Campaigns. 194-195. Abstract from 25 years of progress in radar altimetry symposium, Portugal.
Hvidegaard, S. ; Skourup, H. ; Forsberg, R. ; Casal, T. ; Davidson, M. / Validation of Satellite Cryosphere Altimetry with Airborne Surveys – Results of CryoVEx Campaigns. Abstract from 25 years of progress in radar altimetry symposium, Portugal.
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author = "S. Hvidegaard and H. Skourup and R. Forsberg and T. Casal and M. Davidson",
year = "2018",
language = "English",
pages = "194--195",
note = "25 years of progress in radar altimetry symposium ; Conference date: 24-09-2018 Through 29-09-2018",

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Hvidegaard, S, Skourup, H, Forsberg, R, Casal, T & Davidson, M 2018, 'Validation of Satellite Cryosphere Altimetry with Airborne Surveys – Results of CryoVEx Campaigns' 25 years of progress in radar altimetry symposium, Portugal, 24/09/2018 - 29/09/2018, pp. 194-195.

Validation of Satellite Cryosphere Altimetry with Airborne Surveys – Results of CryoVEx Campaigns. / Hvidegaard, S.; Skourup, H.; Forsberg, R.; Casal, T.; Davidson, M.

2018. 194-195 Abstract from 25 years of progress in radar altimetry symposium, Portugal.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

TY - ABST

T1 - Validation of Satellite Cryosphere Altimetry with Airborne Surveys – Results of CryoVEx Campaigns

AU - Hvidegaard, S.

AU - Skourup, H.

AU - Forsberg, R.

AU - Casal, T.

AU - Davidson, M.

PY - 2018

Y1 - 2018

N2 - In preparations for the first CryoSat mission ESA initiated a series of validations campaigns called CryoVEx – CryoSat Validation Experiment. For the first time DTU Space carried out a validation campaign in 2003 and continued in the following years with several pre-launch experiment followed by the first direct validation campaign in spring 2011 after the successful launch of CryoSat-2 in 2010. Since then validation experiments have been carried out both in the Arctic and Antarctic with different instrumental setup. The performance of CryoSat-2 has been validated using an airborne version of the SIRAL altimeter (ASIRAS, manufactured by Radar System Technology) combined with laser scanner altimeter observations together with e.g visual imagery. Also in the very recent campaigns a Ka-band radar system (KAREN) manufactured by MetaSensing has been added to the observations providing the opportunity to collect coincident dual frequency radar altimetry. Combined with in situ observations on ground at selected validations sites, these airborne observations provide a unique dataset of observations coincident in time and space of surface elevations and elevation changes for validation of the CryoSat products. These data have been used for studies that asses the accuracy and error sources of CryoSat-2 (e.g. the CryoVal sea ice and land ice projects). The presentation will give an overview of the airborne campaigns and summarize the main results obtained with the datasets gathered.

AB - In preparations for the first CryoSat mission ESA initiated a series of validations campaigns called CryoVEx – CryoSat Validation Experiment. For the first time DTU Space carried out a validation campaign in 2003 and continued in the following years with several pre-launch experiment followed by the first direct validation campaign in spring 2011 after the successful launch of CryoSat-2 in 2010. Since then validation experiments have been carried out both in the Arctic and Antarctic with different instrumental setup. The performance of CryoSat-2 has been validated using an airborne version of the SIRAL altimeter (ASIRAS, manufactured by Radar System Technology) combined with laser scanner altimeter observations together with e.g visual imagery. Also in the very recent campaigns a Ka-band radar system (KAREN) manufactured by MetaSensing has been added to the observations providing the opportunity to collect coincident dual frequency radar altimetry. Combined with in situ observations on ground at selected validations sites, these airborne observations provide a unique dataset of observations coincident in time and space of surface elevations and elevation changes for validation of the CryoSat products. These data have been used for studies that asses the accuracy and error sources of CryoSat-2 (e.g. the CryoVal sea ice and land ice projects). The presentation will give an overview of the airborne campaigns and summarize the main results obtained with the datasets gathered.

M3 - Conference abstract for conference

SP - 194

EP - 195

ER -

Hvidegaard S, Skourup H, Forsberg R, Casal T, Davidson M. Validation of Satellite Cryosphere Altimetry with Airborne Surveys – Results of CryoVEx Campaigns. 2018. Abstract from 25 years of progress in radar altimetry symposium, Portugal.