First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1:In situ observations
Understanding the evolution of melt ponds on Arctic sea ice is important for climate model parameterisations, weather forecast models and process studies involving mass, energy and biogeochemical exchanges across the ocean-sea ice-atmosphere interface. A field campaign was conducted in a region of l...
Published in: | The Cryosphere |
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Online Access: | https://hdl.handle.net/1983/3a2bb717-eaa1-464c-a054-a4abf5209759 https://research-information.bris.ac.uk/en/publications/3a2bb717-eaa1-464c-a054-a4abf5209759 https://doi.org/10.5194/tc-8-2147-2014 http://www.scopus.com/inward/record.url?scp=84912075176&partnerID=8YFLogxK |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/3a2bb717-eaa1-464c-a054-a4abf5209759 2024-01-28T10:02:36+01:00 First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1:In situ observations Scharien, R. K. Landy, J. Barber, D. G. 2014-11-25 https://hdl.handle.net/1983/3a2bb717-eaa1-464c-a054-a4abf5209759 https://research-information.bris.ac.uk/en/publications/3a2bb717-eaa1-464c-a054-a4abf5209759 https://doi.org/10.5194/tc-8-2147-2014 http://www.scopus.com/inward/record.url?scp=84912075176&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Scharien , R K , Landy , J & Barber , D G 2014 , ' First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1 : In situ observations ' , Cryosphere , vol. 8 , no. 6 , pp. 2147-2162 . https://doi.org/10.5194/tc-8-2147-2014 article 2014 ftubristolcris https://doi.org/10.5194/tc-8-2147-2014 2024-01-04T23:51:58Z Understanding the evolution of melt ponds on Arctic sea ice is important for climate model parameterisations, weather forecast models and process studies involving mass, energy and biogeochemical exchanges across the ocean-sea ice-atmosphere interface. A field campaign was conducted in a region of level first-year sea ice (FYI) in the central Canadian Arctic Archipelago (CAA), during the summer of 2012, to examine the potential for estimating melt pond fraction (f p ) from satellite synthetic aperture radar (SAR). In this study, 5.5 GHz (C-band) dual co- (HH +VV - horizontal transmit and horizontal receive + vertical transmit and vertical receive) and cross-polarisation (HV + HH - horizontal transmit and vertical receive + horizontal transmit and horizontal receive) radar scatterometer measurements of melt-pond-covered FYI are combined with ice and pond properties to analyse the effects of in situ physical and morphological changes on backscatter parameters. Surface roughness statistics of ice and ponds are characterised and compared to the validity domains of the Bragg and integral equation model (IEM) scattering models. Experimental and model results are used to outline the potential and limitations of the co-polarisation ratio (VV/HH) for retrieving melt pond information, including f p , at large incidence angles (≥ 35°). Despite high variability in cross-polarisation ratio (HV/HH) magnitudes, increases at small incidence angles (> 30°) are attributed to the formation of ice lids on ponds. Implications of the results for pond information retrievals from satellite C-, L- and P-band SARs are discussed. Article in Journal/Newspaper Arctic Archipelago Arctic Canadian Arctic Archipelago Sea ice University of Bristol: Bristol Research Arctic Canadian Arctic Archipelago The Cryosphere 8 6 2147 2162 |
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Open Polar |
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University of Bristol: Bristol Research |
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ftubristolcris |
language |
English |
description |
Understanding the evolution of melt ponds on Arctic sea ice is important for climate model parameterisations, weather forecast models and process studies involving mass, energy and biogeochemical exchanges across the ocean-sea ice-atmosphere interface. A field campaign was conducted in a region of level first-year sea ice (FYI) in the central Canadian Arctic Archipelago (CAA), during the summer of 2012, to examine the potential for estimating melt pond fraction (f p ) from satellite synthetic aperture radar (SAR). In this study, 5.5 GHz (C-band) dual co- (HH +VV - horizontal transmit and horizontal receive + vertical transmit and vertical receive) and cross-polarisation (HV + HH - horizontal transmit and vertical receive + horizontal transmit and horizontal receive) radar scatterometer measurements of melt-pond-covered FYI are combined with ice and pond properties to analyse the effects of in situ physical and morphological changes on backscatter parameters. Surface roughness statistics of ice and ponds are characterised and compared to the validity domains of the Bragg and integral equation model (IEM) scattering models. Experimental and model results are used to outline the potential and limitations of the co-polarisation ratio (VV/HH) for retrieving melt pond information, including f p , at large incidence angles (≥ 35°). Despite high variability in cross-polarisation ratio (HV/HH) magnitudes, increases at small incidence angles (> 30°) are attributed to the formation of ice lids on ponds. Implications of the results for pond information retrievals from satellite C-, L- and P-band SARs are discussed. |
format |
Article in Journal/Newspaper |
author |
Scharien, R. K. Landy, J. Barber, D. G. |
spellingShingle |
Scharien, R. K. Landy, J. Barber, D. G. First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1:In situ observations |
author_facet |
Scharien, R. K. Landy, J. Barber, D. G. |
author_sort |
Scharien, R. K. |
title |
First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1:In situ observations |
title_short |
First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1:In situ observations |
title_full |
First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1:In situ observations |
title_fullStr |
First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1:In situ observations |
title_full_unstemmed |
First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1:In situ observations |
title_sort |
first-year sea ice melt pond fraction estimation from dual-polarisation c-band sar - part 1:in situ observations |
publishDate |
2014 |
url |
https://hdl.handle.net/1983/3a2bb717-eaa1-464c-a054-a4abf5209759 https://research-information.bris.ac.uk/en/publications/3a2bb717-eaa1-464c-a054-a4abf5209759 https://doi.org/10.5194/tc-8-2147-2014 http://www.scopus.com/inward/record.url?scp=84912075176&partnerID=8YFLogxK |
geographic |
Arctic Canadian Arctic Archipelago |
geographic_facet |
Arctic Canadian Arctic Archipelago |
genre |
Arctic Archipelago Arctic Canadian Arctic Archipelago Sea ice |
genre_facet |
Arctic Archipelago Arctic Canadian Arctic Archipelago Sea ice |
op_source |
Scharien , R K , Landy , J & Barber , D G 2014 , ' First-year sea ice melt pond fraction estimation from dual-polarisation C-band SAR - Part 1 : In situ observations ' , Cryosphere , vol. 8 , no. 6 , pp. 2147-2162 . https://doi.org/10.5194/tc-8-2147-2014 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.5194/tc-8-2147-2014 |
container_title |
The Cryosphere |
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8 |
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6 |
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2147 |
op_container_end_page |
2162 |
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