A new tracking algorithm for sea ice age distribution estimation
International audience A new algorithm for estimating sea ice age (SIA) distribution based on the Eulerian advection scheme is presented. The advection scheme accounts for the observed divergence or convergence and freezing or melting of sea ice and predicts consequent generation or loss of new ice....
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Online Access: | https://hal.univ-grenoble-alpes.fr/hal-03405353 https://hal.univ-grenoble-alpes.fr/hal-03405353/document https://hal.univ-grenoble-alpes.fr/hal-03405353/file/Korosov2018The_Croysphere.pdf https://doi.org/10.5194/tc-12-2073-2018 |
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ftccsdartic:oai:HAL:hal-03405353v1 2023-05-15T17:14:20+02:00 A new tracking algorithm for sea ice age distribution estimation Korosov, Anton, Rampal, Pierre Pedersen, Leif, Saldo, Roberto Ye, Yufang Heygster, Georg Lavergne, Thomas Aaboe, Signe Girard-Ardhuin, Fanny Nansen Environmental and Remote Sensing Center Bergen (NERSC) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) 2018-06-15 https://hal.univ-grenoble-alpes.fr/hal-03405353 https://hal.univ-grenoble-alpes.fr/hal-03405353/document https://hal.univ-grenoble-alpes.fr/hal-03405353/file/Korosov2018The_Croysphere.pdf https://doi.org/10.5194/tc-12-2073-2018 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-12-2073-2018 hal-03405353 https://hal.univ-grenoble-alpes.fr/hal-03405353 https://hal.univ-grenoble-alpes.fr/hal-03405353/document https://hal.univ-grenoble-alpes.fr/hal-03405353/file/Korosov2018The_Croysphere.pdf doi:10.5194/tc-12-2073-2018 info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.univ-grenoble-alpes.fr/hal-03405353 The Cryosphere, Copernicus 2018, 12, pp.2073 - 2085. ⟨10.5194/tc-12-2073-2018⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2018 ftccsdartic https://doi.org/10.5194/tc-12-2073-2018 2021-11-06T23:27:49Z International audience A new algorithm for estimating sea ice age (SIA) distribution based on the Eulerian advection scheme is presented. The advection scheme accounts for the observed divergence or convergence and freezing or melting of sea ice and predicts consequent generation or loss of new ice. The algorithm uses daily gridded sea ice drift and sea ice concentration products from the Ocean and Sea Ice Satellite Application Facility. The major advantage of the new algorithm is the ability to generate individual ice age fractions in each pixel of the output product or, in other words, to provide a frequency distribution of the ice age allowing to apply mean, median, weighted average or other statistical measures. Comparison with the National Snow and Ice Data Center SIA product revealed several improvements of the new SIA maps and time series. First, the application of the Eulerian scheme provides smooth distribution of the ice age parameters and prevents product undersampling which may occur when a Lagrangian tracking approach is used. Second, utilization of the new sea ice drift product void of artifacts from EUMETSAT OSI SAF resulted in more accurate and reliable spatial distribution of ice age fractions. Third, constraining SIA computations by the observed sea ice concentration expectedly led to considerable reduction of multi-year ice (MYI) fractions. MYI concentration is computed as a sum of all MYI fractions and compares well to the MYI products based on passive and active microwave and SAR products. Article in Journal/Newspaper National Snow and Ice Data Center Sea ice The Cryosphere Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) The Cryosphere 12 6 2073 2085 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Korosov, Anton, Rampal, Pierre Pedersen, Leif, Saldo, Roberto Ye, Yufang Heygster, Georg Lavergne, Thomas Aaboe, Signe Girard-Ardhuin, Fanny A new tracking algorithm for sea ice age distribution estimation |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience A new algorithm for estimating sea ice age (SIA) distribution based on the Eulerian advection scheme is presented. The advection scheme accounts for the observed divergence or convergence and freezing or melting of sea ice and predicts consequent generation or loss of new ice. The algorithm uses daily gridded sea ice drift and sea ice concentration products from the Ocean and Sea Ice Satellite Application Facility. The major advantage of the new algorithm is the ability to generate individual ice age fractions in each pixel of the output product or, in other words, to provide a frequency distribution of the ice age allowing to apply mean, median, weighted average or other statistical measures. Comparison with the National Snow and Ice Data Center SIA product revealed several improvements of the new SIA maps and time series. First, the application of the Eulerian scheme provides smooth distribution of the ice age parameters and prevents product undersampling which may occur when a Lagrangian tracking approach is used. Second, utilization of the new sea ice drift product void of artifacts from EUMETSAT OSI SAF resulted in more accurate and reliable spatial distribution of ice age fractions. Third, constraining SIA computations by the observed sea ice concentration expectedly led to considerable reduction of multi-year ice (MYI) fractions. MYI concentration is computed as a sum of all MYI fractions and compares well to the MYI products based on passive and active microwave and SAR products. |
author2 |
Nansen Environmental and Remote Sensing Center Bergen (NERSC) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) |
format |
Article in Journal/Newspaper |
author |
Korosov, Anton, Rampal, Pierre Pedersen, Leif, Saldo, Roberto Ye, Yufang Heygster, Georg Lavergne, Thomas Aaboe, Signe Girard-Ardhuin, Fanny |
author_facet |
Korosov, Anton, Rampal, Pierre Pedersen, Leif, Saldo, Roberto Ye, Yufang Heygster, Georg Lavergne, Thomas Aaboe, Signe Girard-Ardhuin, Fanny |
author_sort |
Korosov, Anton, |
title |
A new tracking algorithm for sea ice age distribution estimation |
title_short |
A new tracking algorithm for sea ice age distribution estimation |
title_full |
A new tracking algorithm for sea ice age distribution estimation |
title_fullStr |
A new tracking algorithm for sea ice age distribution estimation |
title_full_unstemmed |
A new tracking algorithm for sea ice age distribution estimation |
title_sort |
new tracking algorithm for sea ice age distribution estimation |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.univ-grenoble-alpes.fr/hal-03405353 https://hal.univ-grenoble-alpes.fr/hal-03405353/document https://hal.univ-grenoble-alpes.fr/hal-03405353/file/Korosov2018The_Croysphere.pdf https://doi.org/10.5194/tc-12-2073-2018 |
genre |
National Snow and Ice Data Center Sea ice The Cryosphere |
genre_facet |
National Snow and Ice Data Center Sea ice The Cryosphere |
op_source |
ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.univ-grenoble-alpes.fr/hal-03405353 The Cryosphere, Copernicus 2018, 12, pp.2073 - 2085. ⟨10.5194/tc-12-2073-2018⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-12-2073-2018 hal-03405353 https://hal.univ-grenoble-alpes.fr/hal-03405353 https://hal.univ-grenoble-alpes.fr/hal-03405353/document https://hal.univ-grenoble-alpes.fr/hal-03405353/file/Korosov2018The_Croysphere.pdf doi:10.5194/tc-12-2073-2018 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/tc-12-2073-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
6 |
container_start_page |
2073 |
op_container_end_page |
2085 |
_version_ |
1766071705717964800 |