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Sea Surface and Atmosphere Conditions for Coherent Reflectometry: On the Impact of Sea Ice and Sea State

Semmling, Maximilian and Moreno Bulla, Mario Andres and Wickert, Jens and Stienne, Georges and Divine, Dmitry and Hoque, Mohammed Mainul and Gerland, Sebastian and Reboul, Serge and Cardellach, Estel (2021) Sea Surface and Atmosphere Conditions for Coherent Reflectometry: On the Impact of Sea Ice and Sea State. ESA China Workshop 2021, 17.-19. Nov. 2021, Virtual.

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Abstract

Coherently reflected GNSS signals are a valuable source for Earth observations. They find application in retrievals of sea surface height with centimetre-level precision as well as for estimation of soil moisture or sea-ice concentration. The application of coherent reflectometry is strongly affected by the transition to the diffuse reflection regime, induced by surface roughness. Also, other factors, like surface penetration, multilayer reflection and atmospheric disturbance, have influence. Our recent investigations are focused on a better understanding of these effects. We review here, on the one hand, a sea-ice reflectometry approach to retrieve sea-ice concentration and sea-ice permittivity considering multilayer reflection. And we discuss, on the other hand, reflections over coastal areas with focus on coherence loss quantified by the signal's Doppler spread under different sea states.

Item URL in elib:https://elib.dlr.de/145855/
Document Type:Conference or Workshop Item (Speech)
Title:Sea Surface and Atmosphere Conditions for Coherent Reflectometry: On the Impact of Sea Ice and Sea State
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Semmling, MaximilianMaximilian.Semmling (at) dlr.dehttps://orcid.org/0000-0002-5228-8072
Moreno Bulla, Mario Andresmario.moreno (at) dlr.deUNSPECIFIED
Wickert, JensGeoForschungsZentrum Potsdamhttps://orcid.org/0000-0002-7379-5276
Stienne, Georgesgeorges.stienne (at) univ-littoral.frUNSPECIFIED
Divine, DmitryDmitry.Divine (at) npolar.noUNSPECIFIED
Hoque, Mohammed MainulMainul.Hoque (at) dlr.dehttps://orcid.org/0000-0001-5134-4901
Gerland, SebastianNorwegian Polar Institute, Fram Centre, Tromsø, Norwayhttps://orcid.org/0000-0002-2295-9867
Reboul, SergeLaboratoire d’Informatique, Signal et Image de la Côte d’OpaleUNSPECIFIED
Cardellach, Estelestel (at) ice.csic.esUNSPECIFIED
Date:18 November 2021
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:GNSS reflectometry, sea state, sea ice, atmospheric effects
Event Title:ESA China Workshop 2021
Event Location:Virtual
Event Type:international Conference
Event Dates:17.-19. Nov. 2021
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Ionosphere
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics
Deposited By: Semmling, Dr. Maximilian
Deposited On:02 Dec 2021 07:12
Last Modified:02 Dec 2021 07:12

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