The anisotropic scattering coefficient of sea ice
Radiative transfer in sea ice is subject to anisotropic, multiple scattering. The impact of anisotropy on the light field under sea ice was found to be substantial and has been quantified. In this study, a large data set of irradiance and radiance measurements under sea ice has been acquired with a...
Published in: | Journal of Geophysical Research: Oceans |
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Online Access: | https://epic.awi.de/id/eprint/35032/ https://epic.awi.de/id/eprint/35032/1/katlein_2014_JGR_The_anisotropic_scattering_coefficient.pdf http://onlinelibrary.wiley.com/doi/10.1002/2013JC009502/abstract;jsessionid=729AE23B01CFDDBD6CE798428CA2DDE1.f04t02 https://hdl.handle.net/10013/epic.43128 https://hdl.handle.net/10013/epic.43128.d001 |
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ftawi:oai:epic.awi.de:35032 2024-09-15T18:34:09+00:00 The anisotropic scattering coefficient of sea ice Katlein, Christian Nicolaus, Marcel Petrich, Chris 2014-02-07 application/pdf https://epic.awi.de/id/eprint/35032/ https://epic.awi.de/id/eprint/35032/1/katlein_2014_JGR_The_anisotropic_scattering_coefficient.pdf http://onlinelibrary.wiley.com/doi/10.1002/2013JC009502/abstract;jsessionid=729AE23B01CFDDBD6CE798428CA2DDE1.f04t02 https://hdl.handle.net/10013/epic.43128 https://hdl.handle.net/10013/epic.43128.d001 unknown Wiley https://epic.awi.de/id/eprint/35032/1/katlein_2014_JGR_The_anisotropic_scattering_coefficient.pdf https://hdl.handle.net/10013/epic.43128.d001 Katlein, C. orcid:0000-0003-2422-0414 , Nicolaus, M. orcid:0000-0003-0903-1746 and Petrich, C. (2014) The anisotropic scattering coefficient of sea ice , Journal of Geophysical Research: Oceans . doi:10.1002/2013JC009502 <https://doi.org/10.1002/2013JC009502> , hdl:10013/epic.43128 EPIC3Journal of Geophysical Research: Oceans, Wiley, ISSN: 2169-9275 Article isiRev 2014 ftawi https://doi.org/10.1002/2013JC009502 2024-06-24T04:08:32Z Radiative transfer in sea ice is subject to anisotropic, multiple scattering. The impact of anisotropy on the light field under sea ice was found to be substantial and has been quantified. In this study, a large data set of irradiance and radiance measurements under sea ice has been acquired with a Remotely Operated Vehicle (ROV) in the central Arctic. Measurements are interpreted in the context of numerical radiative transfer calculations, laboratory experiments, and microstructure analysis. The ratio of synchronous measurements of transmitted irradiance to radiance shows a clear deviation from an isotropic under-ice light field. We find that the angular radiance distribution under sea ice is more downward directed than expected for an isotropic light field. This effect can be attributed to the anisotropic scattering coefficient within sea ice. Assuming an isotropic radiance distribution under sea ice leads to significant errors in light-field modeling and the interpretation of radiation measurements. Quantification of the light field geometry is crucial for correct conversion of radiance data acquired by Autonomous Underwater Vehicles (AUVs) and ROVs. Article in Journal/Newspaper Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Journal of Geophysical Research: Oceans 119 2 842 855 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Radiative transfer in sea ice is subject to anisotropic, multiple scattering. The impact of anisotropy on the light field under sea ice was found to be substantial and has been quantified. In this study, a large data set of irradiance and radiance measurements under sea ice has been acquired with a Remotely Operated Vehicle (ROV) in the central Arctic. Measurements are interpreted in the context of numerical radiative transfer calculations, laboratory experiments, and microstructure analysis. The ratio of synchronous measurements of transmitted irradiance to radiance shows a clear deviation from an isotropic under-ice light field. We find that the angular radiance distribution under sea ice is more downward directed than expected for an isotropic light field. This effect can be attributed to the anisotropic scattering coefficient within sea ice. Assuming an isotropic radiance distribution under sea ice leads to significant errors in light-field modeling and the interpretation of radiation measurements. Quantification of the light field geometry is crucial for correct conversion of radiance data acquired by Autonomous Underwater Vehicles (AUVs) and ROVs. |
format |
Article in Journal/Newspaper |
author |
Katlein, Christian Nicolaus, Marcel Petrich, Chris |
spellingShingle |
Katlein, Christian Nicolaus, Marcel Petrich, Chris The anisotropic scattering coefficient of sea ice |
author_facet |
Katlein, Christian Nicolaus, Marcel Petrich, Chris |
author_sort |
Katlein, Christian |
title |
The anisotropic scattering coefficient of sea ice |
title_short |
The anisotropic scattering coefficient of sea ice |
title_full |
The anisotropic scattering coefficient of sea ice |
title_fullStr |
The anisotropic scattering coefficient of sea ice |
title_full_unstemmed |
The anisotropic scattering coefficient of sea ice |
title_sort |
anisotropic scattering coefficient of sea ice |
publisher |
Wiley |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/35032/ https://epic.awi.de/id/eprint/35032/1/katlein_2014_JGR_The_anisotropic_scattering_coefficient.pdf http://onlinelibrary.wiley.com/doi/10.1002/2013JC009502/abstract;jsessionid=729AE23B01CFDDBD6CE798428CA2DDE1.f04t02 https://hdl.handle.net/10013/epic.43128 https://hdl.handle.net/10013/epic.43128.d001 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
EPIC3Journal of Geophysical Research: Oceans, Wiley, ISSN: 2169-9275 |
op_relation |
https://epic.awi.de/id/eprint/35032/1/katlein_2014_JGR_The_anisotropic_scattering_coefficient.pdf https://hdl.handle.net/10013/epic.43128.d001 Katlein, C. orcid:0000-0003-2422-0414 , Nicolaus, M. orcid:0000-0003-0903-1746 and Petrich, C. (2014) The anisotropic scattering coefficient of sea ice , Journal of Geophysical Research: Oceans . doi:10.1002/2013JC009502 <https://doi.org/10.1002/2013JC009502> , hdl:10013/epic.43128 |
op_doi |
https://doi.org/10.1002/2013JC009502 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
119 |
container_issue |
2 |
container_start_page |
842 |
op_container_end_page |
855 |
_version_ |
1810475879000702976 |