Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals
Radar altimetry has proven to be key in Earth observation when retrieving remote and systematic data for looking at long term trends, this is the case of the cryosphere monitoring. In this context, important missions addressed for altimetry are Sentinel-6 and CryoSat-2, launched by ESA. This study c...
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Universitat Politècnica de Catalunya
2023
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ftupcatalunyair:oai:upcommons.upc.edu:2117/403091 2024-09-15T17:40:19+00:00 Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals Guerra Bernal, Michel Enrique Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions isardSAT García Mondéjar, Albert Mallorquí Franquet, Jordi Joan 2023-06 application/zip application/pdf http://hdl.handle.net/2117/403091 eng eng Universitat Politècnica de Catalunya http://hdl.handle.net/2117/403091 ETSETB-230.180511 S'autoritza la difusió de l'obra mitjançant la llicència Creative Commons o similar 'Reconeixement-NoComercial- SenseObraDerivada' Open Access Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radar Synthetic aperture radar Altitudes -- Measurement Sentinel-6 CryoSat-2 SAR altimetry sea ice concentration Radar d'obertura sintètica Altituds -- Mesurament Master thesis 2023 ftupcatalunyair 2024-07-25T11:09:47Z Radar altimetry has proven to be key in Earth observation when retrieving remote and systematic data for looking at long term trends, this is the case of the cryosphere monitoring. In this context, important missions addressed for altimetry are Sentinel-6 and CryoSat-2, launched by ESA. This study conveys methods for retrieval and estimation of surface ice parameters and features by combining data from both of them. In a first phase, Fully Focused SAR data processed in Athabasca Lake, along with interferometric data from CryoSat-2, are combined to classify the visible features and estimate the signal source location. Here, the advantages of Fully Focused processing over Delay-Doppler processing are highlighted. In a second stage, four methods for sea ice concentration estimation are employed using Sentinel-6 data from the year 2021 in a small region of the antarctic Weddell Sea, one based in histogram clustering identification and the others based on curve fitting and local maxima isolation, waveform per waveform. The results show a good convergence between the fitting filters and the local maxima detection. Finally, the validation data from AMSR2 shows agreement with the time series trend in 2021. Master Thesis Antarc* Antarctic Sea ice Weddell Sea Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
institution |
Open Polar |
collection |
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
op_collection_id |
ftupcatalunyair |
language |
English |
topic |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radar Synthetic aperture radar Altitudes -- Measurement Sentinel-6 CryoSat-2 SAR altimetry sea ice concentration Radar d'obertura sintètica Altituds -- Mesurament |
spellingShingle |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radar Synthetic aperture radar Altitudes -- Measurement Sentinel-6 CryoSat-2 SAR altimetry sea ice concentration Radar d'obertura sintètica Altituds -- Mesurament Guerra Bernal, Michel Enrique Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals |
topic_facet |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radar Synthetic aperture radar Altitudes -- Measurement Sentinel-6 CryoSat-2 SAR altimetry sea ice concentration Radar d'obertura sintètica Altituds -- Mesurament |
description |
Radar altimetry has proven to be key in Earth observation when retrieving remote and systematic data for looking at long term trends, this is the case of the cryosphere monitoring. In this context, important missions addressed for altimetry are Sentinel-6 and CryoSat-2, launched by ESA. This study conveys methods for retrieval and estimation of surface ice parameters and features by combining data from both of them. In a first phase, Fully Focused SAR data processed in Athabasca Lake, along with interferometric data from CryoSat-2, are combined to classify the visible features and estimate the signal source location. Here, the advantages of Fully Focused processing over Delay-Doppler processing are highlighted. In a second stage, four methods for sea ice concentration estimation are employed using Sentinel-6 data from the year 2021 in a small region of the antarctic Weddell Sea, one based in histogram clustering identification and the others based on curve fitting and local maxima isolation, waveform per waveform. The results show a good convergence between the fitting filters and the local maxima detection. Finally, the validation data from AMSR2 shows agreement with the time series trend in 2021. |
author2 |
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions isardSAT García Mondéjar, Albert Mallorquí Franquet, Jordi Joan |
format |
Master Thesis |
author |
Guerra Bernal, Michel Enrique |
author_facet |
Guerra Bernal, Michel Enrique |
author_sort |
Guerra Bernal, Michel Enrique |
title |
Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals |
title_short |
Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals |
title_full |
Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals |
title_fullStr |
Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals |
title_full_unstemmed |
Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals |
title_sort |
combination of fully focused sentinel-6 and interferometric cryosat-2 to enhance sea ice retrievals |
publisher |
Universitat Politècnica de Catalunya |
publishDate |
2023 |
url |
http://hdl.handle.net/2117/403091 |
genre |
Antarc* Antarctic Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Sea ice Weddell Sea |
op_relation |
http://hdl.handle.net/2117/403091 ETSETB-230.180511 |
op_rights |
S'autoritza la difusió de l'obra mitjançant la llicència Creative Commons o similar 'Reconeixement-NoComercial- SenseObraDerivada' Open Access |
_version_ |
1810486322840731648 |