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Year-round Satellite Multi Frequency Synthetic Aperture Radar Observations During the MOSAiC Expedition

Singha, Suman and Spreen, Gunnar and Krumpen, Thomas and Davidson, Malcolm and Sobue, Shinichi and Howell, Stephen and Kwok, Ron and Zecchetto, Stefano and Gonzáles Bonilla, María José and Frulla, Laura and Kim, Hyun-Cheol and Toyota, Takenobu and Battagliere, Maria Libera and Schwarz, Egbert (2020) Year-round Satellite Multi Frequency Synthetic Aperture Radar Observations During the MOSAiC Expedition. AGU Fall Meeting, 01.-17. Dez. 2020, Online.

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Official URL: https://agu.confex.com/agu/fm20/meetingapp.cgi/Paper/680922

Abstract

In September 2019, the ambitious multidisciplinary Arctic MOSAiC expedition (Multidisciplinary drifting Observatory for the Study of Arctic Climate) started. The research icebreaker Polarstern got anchored to an ice floe in the central Arctic for a complete seasonal cycle (with minimal interruption) drifting with the ice. The expedition provides a unique opportunity for the researchers to better understand and quantify relevant interactive processes within the atmosphere–ice–ocean system that impact the sea ice properties and dynamics. In order to fulfill this aim comprehensive coincident in-situ, airborne and satellite measurements are necessary. In the presence of Arctic winter and frequent cloud coverage over the study area, Synthetic Aperture Radar (SAR) has proven to supply very useful datasets to observe the sea ice properties and dynamics at higher spatial and temporal resolution. Through an outstanding collaboration between different space agencies and research institutes, initiated by the WMO Polar Space Task Group, a unique and comprehensive collection of SAR acquisitions mainly targeting the MOSAiC Central Observatory (CO) was collected during the complete year of the drift. SAR images from several sensors and at frequencies, in X-band (TerraSAR-X/TanDEM-X, PAZ, COSMO-SkyMed, KOMPSAT-5), C-band (Sentinel-1, RADARSAT-2, RCM) and L-band (ALOS-2, SAOCOM) in different imaging modes and polarizations were acquired. Some of the sensors provide daily or sub-daily coverage of the MOSAiC CO and thus close to co-incident observations at different frequencies can be achieved. The advantages for ice property retrieval at different frequencies can be exploited and directly compared with in-situ and airborne observations. Here we will present our unique collection of multi-frequency SAR datasets and some initial results on sea ice properties retrieval from the first months of the expedition.

Item URL in elib:https://elib.dlr.de/136506/
Document Type:Conference or Workshop Item (Poster)
Title:Year-round Satellite Multi Frequency Synthetic Aperture Radar Observations During the MOSAiC Expedition
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Singha, SumanSuman.Singha (at) dlr.dehttps://orcid.org/0000-0002-1880-6868
Spreen, GunnarUniversity of Bremen, IUP, GermanyUNSPECIFIED
Krumpen, ThomasAlfred Wegener Institute (AWI), Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germanyhttps://orcid.org/0000-0001-6234-8756
Davidson, MalcolmEuropean Space Agency (ESA)UNSPECIFIED
Sobue, ShinichiJapan Aerospace Exploration Agency (JAXA)UNSPECIFIED
Howell, StephenEnvironment and Climate Change Canada (ECCC)UNSPECIFIED
Kwok, RonApplied Physics Laboratory, University of WashingtonUNSPECIFIED
Zecchetto, StefanoItalian National Research Council (CNR)UNSPECIFIED
Gonzáles Bonilla, María JoséInstituto Nacional de Téchnica Aerospecial (INTA)UNSPECIFIED
Frulla, LauraComisión Nacional de Actividades Espaciales (CONAE)UNSPECIFIED
Kim, Hyun-CheolKorea Polar Research Institute (KOPRI)UNSPECIFIED
Toyota, TakenobuHokkaido UniversityUNSPECIFIED
Battagliere, Maria LiberaItalian Space Agency (ASI)UNSPECIFIED
Schwarz, EgbertEgbert.Schwarz (at) dlr.deUNSPECIFIED
Date:8 December 2020
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Synthetic Aperture Radar, SAR, MOSAiC, sea ice, drift, in-situ, airborne, multi-frequency
Event Title:AGU Fall Meeting
Event Location:Online
Event Type:international Conference
Event Dates:01.-17. Dez. 2020
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - SAR methods
Location: Bremen , Neustrelitz , Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
German Remote Sensing Data Center > National Ground Segment
Deposited By: Kaps, Ruth
Deposited On:13 Oct 2020 13:06
Last Modified:15 Dec 2020 10:26

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