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Reducing the antenna beam pattern impact on Sentinel-1 wind fields

Jacobsen, Sven and Pleskachevsky, Andrey and Velotto, Domenico (2018) Reducing the antenna beam pattern impact on Sentinel-1 wind fields. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR, pp. 736-740. VDE Verlag GmbH, Berlin, Offenbach. EUSAR 2018, 06. - 09. June 2018, Aachen, Germany. ISBN 978-3-8007-4636-1. ISSN 2197-4403.

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A close inspection of the Sentinel-1 (S-1) Interferometric Wide Swath (IW) mode data over the ocean reveals antenna beam patterns remaining in the calibrated and noise-corrected data, resulting in discontinuous wind speed values across the beam boundaries. We present an analysis of the impact of this effect on estimated wind fields based on more than 8000 Sentinel acquisitions with level-2 OCN data available and compare to high resolution ECMWF model data. We propose a correction scheme to minimize the beam pattern impact. The method can be applied to both, level-2 OCN da-ta products and level-1 original IW image data.

Item URL in elib:https://elib.dlr.de/118177/
Document Type:Conference or Workshop Item (Poster)
Additional Information:https://conference.vde.com/eusar/2018/documents/eusar_2018_program.pdf
Title:Reducing the antenna beam pattern impact on Sentinel-1 wind fields
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Jacobsen, SvenUNSPECIFIEDhttps://orcid.org/0000-0003-4810-4186
Velotto, DomenicoUNSPECIFIEDhttps://orcid.org/0000-0002-8592-0652
Date:6 June 2018
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 736-740
Publisher:VDE Verlag GmbH, Berlin, Offenbach
Series Name:Electronic Proceedings
Keywords:SAR, Sentinel-1, wind, calibration, noise
Event Title:EUSAR 2018
Event Location:Aachen, Germany
Event Type:international Conference
Event Dates:06. - 09. June 2018
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 , Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Kaps, Ruth
Deposited On:26 Apr 2018 12:07
Last Modified:31 Jul 2019 20:15

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