Validation of CryoSat-2 Performance over Arctic Sea Ice

Alessandro Di Bella, Henriette Skourup, J. Bouffard, T. Parrinello

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Abstract

The main objective of this work is to validate CryoSat-2 (CS2) SARIn performance over sea ice by use of airborne laser altimetry data obtained during the CryoVEx 2012 campaign. A study by [1] has shown that the extra information from the CS2 SARIn mode increases the number of valid sea surface height estimates which are usually discarded in the SAR mode due to snagging of the radar signal. As the number of valid detected leads increases, the uncertainty of the freeboard heights decreases.
In this study, the snow freeboard heights estimated using data from the airborne laser scanner are used to validate the sea ice freeboard obtained by processing CS2 SARIn level 1b waveforms. The possible reduction in the random freeboard uncertainty is investigated comparing two scenarios, i.e. a SAR-like and a SARIn acquisition.
It is observed that using the extra phase information, CS2 is able to detect leads up to 2370 m off-nadir. A reduction in the the total random freeboard uncertainty of-40% is observed by taking advantage of the CS2 interferometric capabilities, which enable to include-35% of the waveforms discarded in the SAR-like scenario.
Original languageEnglish
Publication date2016
Number of pages1
Publication statusPublished - 2016
EventESA Living Planet Symposium 2016 - Prague, Czech Republic
Duration: 9 May 201613 May 2016
http://lps16.esa.int/

Conference

ConferenceESA Living Planet Symposium 2016
CountryCzech Republic
CityPrague
Period09/05/201613/05/2016
Internet address

Cite this

Di Bella, A., Skourup, H., Bouffard, J., & Parrinello, T. (2016). Validation of CryoSat-2 Performance over Arctic Sea Ice. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.
Di Bella, Alessandro ; Skourup, Henriette ; Bouffard, J. ; Parrinello, T. / Validation of CryoSat-2 Performance over Arctic Sea Ice. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.1 p.
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title = "Validation of CryoSat-2 Performance over Arctic Sea Ice",
abstract = "The main objective of this work is to validate CryoSat-2 (CS2) SARIn performance over sea ice by use of airborne laser altimetry data obtained during the CryoVEx 2012 campaign. A study by [1] has shown that the extra information from the CS2 SARIn mode increases the number of valid sea surface height estimates which are usually discarded in the SAR mode due to snagging of the radar signal. As the number of valid detected leads increases, the uncertainty of the freeboard heights decreases.In this study, the snow freeboard heights estimated using data from the airborne laser scanner are used to validate the sea ice freeboard obtained by processing CS2 SARIn level 1b waveforms. The possible reduction in the random freeboard uncertainty is investigated comparing two scenarios, i.e. a SAR-like and a SARIn acquisition. It is observed that using the extra phase information, CS2 is able to detect leads up to 2370 m off-nadir. A reduction in the the total random freeboard uncertainty of-40{\%} is observed by taking advantage of the CS2 interferometric capabilities, which enable to include-35{\%} of the waveforms discarded in the SAR-like scenario.",
author = "{Di Bella}, Alessandro and Henriette Skourup and J. Bouffard and T. Parrinello",
year = "2016",
language = "English",
note = "ESA Living Planet Symposium 2016 ; Conference date: 09-05-2016 Through 13-05-2016",
url = "http://lps16.esa.int/",

}

Di Bella, A, Skourup, H, Bouffard, J & Parrinello, T 2016, 'Validation of CryoSat-2 Performance over Arctic Sea Ice' ESA Living Planet Symposium 2016, Prague, Czech Republic, 09/05/2016 - 13/05/2016, .

Validation of CryoSat-2 Performance over Arctic Sea Ice. / Di Bella, Alessandro; Skourup, Henriette; Bouffard, J.; Parrinello, T.

2016. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

TY - ABST

T1 - Validation of CryoSat-2 Performance over Arctic Sea Ice

AU - Di Bella, Alessandro

AU - Skourup, Henriette

AU - Bouffard, J.

AU - Parrinello, T.

PY - 2016

Y1 - 2016

N2 - The main objective of this work is to validate CryoSat-2 (CS2) SARIn performance over sea ice by use of airborne laser altimetry data obtained during the CryoVEx 2012 campaign. A study by [1] has shown that the extra information from the CS2 SARIn mode increases the number of valid sea surface height estimates which are usually discarded in the SAR mode due to snagging of the radar signal. As the number of valid detected leads increases, the uncertainty of the freeboard heights decreases.In this study, the snow freeboard heights estimated using data from the airborne laser scanner are used to validate the sea ice freeboard obtained by processing CS2 SARIn level 1b waveforms. The possible reduction in the random freeboard uncertainty is investigated comparing two scenarios, i.e. a SAR-like and a SARIn acquisition. It is observed that using the extra phase information, CS2 is able to detect leads up to 2370 m off-nadir. A reduction in the the total random freeboard uncertainty of-40% is observed by taking advantage of the CS2 interferometric capabilities, which enable to include-35% of the waveforms discarded in the SAR-like scenario.

AB - The main objective of this work is to validate CryoSat-2 (CS2) SARIn performance over sea ice by use of airborne laser altimetry data obtained during the CryoVEx 2012 campaign. A study by [1] has shown that the extra information from the CS2 SARIn mode increases the number of valid sea surface height estimates which are usually discarded in the SAR mode due to snagging of the radar signal. As the number of valid detected leads increases, the uncertainty of the freeboard heights decreases.In this study, the snow freeboard heights estimated using data from the airborne laser scanner are used to validate the sea ice freeboard obtained by processing CS2 SARIn level 1b waveforms. The possible reduction in the random freeboard uncertainty is investigated comparing two scenarios, i.e. a SAR-like and a SARIn acquisition. It is observed that using the extra phase information, CS2 is able to detect leads up to 2370 m off-nadir. A reduction in the the total random freeboard uncertainty of-40% is observed by taking advantage of the CS2 interferometric capabilities, which enable to include-35% of the waveforms discarded in the SAR-like scenario.

M3 - Conference abstract for conference

ER -

Di Bella A, Skourup H, Bouffard J, Parrinello T. Validation of CryoSat-2 Performance over Arctic Sea Ice. 2016. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.