Arctic sea-ice diffusion from observed and simulated Lagrangian trajectories
International audience We characterize sea-ice drift by applying a Lagrangian diffusion analysis to buoy trajectories from the International Arctic Buoy Programme (IABP) dataset and from two different models: the standalone Lagrangian sea-ice model neXtSIM and the Eulerian coupled ice-ocean model us...
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Online Access: | https://hal.univ-grenoble-alpes.fr/hal-03405821 https://hal.univ-grenoble-alpes.fr/hal-03405821/document https://hal.univ-grenoble-alpes.fr/hal-03405821/file/Rampal2016bThe_Cryosphere.pdf https://doi.org/10.5194/tc-10-1513-2016 |
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ftccsdartic:oai:HAL:hal-03405821v1 2023-05-15T14:59:22+02:00 Arctic sea-ice diffusion from observed and simulated Lagrangian trajectories Rampal, Pierre Bouillon, Sylvain Bergh, Jon Ólason, Einar Nansen Environmental and Remote Sensing Center Bergen (NERSC) 2016 https://hal.univ-grenoble-alpes.fr/hal-03405821 https://hal.univ-grenoble-alpes.fr/hal-03405821/document https://hal.univ-grenoble-alpes.fr/hal-03405821/file/Rampal2016bThe_Cryosphere.pdf https://doi.org/10.5194/tc-10-1513-2016 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-10-1513-2016 hal-03405821 https://hal.univ-grenoble-alpes.fr/hal-03405821 https://hal.univ-grenoble-alpes.fr/hal-03405821/document https://hal.univ-grenoble-alpes.fr/hal-03405821/file/Rampal2016bThe_Cryosphere.pdf doi:10.5194/tc-10-1513-2016 info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.univ-grenoble-alpes.fr/hal-03405821 The Cryosphere, Copernicus 2016, 10 (4), pp.1513 - 1527. ⟨10.5194/tc-10-1513-2016⟩ [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2016 ftccsdartic https://doi.org/10.5194/tc-10-1513-2016 2021-11-06T23:27:34Z International audience We characterize sea-ice drift by applying a Lagrangian diffusion analysis to buoy trajectories from the International Arctic Buoy Programme (IABP) dataset and from two different models: the standalone Lagrangian sea-ice model neXtSIM and the Eulerian coupled ice-ocean model used for the TOPAZ reanalysis. By applying the diffusion analysis to the IABP buoy trajectories over the period 1979-2011, we confirm that sea-ice diffusion follows two distinct regimes (ballistic and Brownian) and we provide accurate values for the diffusivity and integral timescale that could be used in Eulerian or Lagrangian passive tracers models to simulate the transport and diffusion of particles moving with the ice. We discuss how these values are linked to the evolution of the fluctuating displacements variance and how this information could be used to define the size of the search area around the position predicted by the mean drift. By comparing observed and simulated sea-ice trajectories for three consecutive winter seasons (2007-2011), we show how the characteristics of the simulated motion may differ from or agree well with observations. This comparison illustrates the usefulness of first applying a diffusion analysis to evaluate the output of modeling systems that include a sea-ice model before using these in, e.g., oil spill trajectory models or, more generally, to simulate the transport of passive tracers in sea ice. Article in Journal/Newspaper Arctic Sea ice The Cryosphere Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic The Cryosphere 10 4 1513 1527 |
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.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Rampal, Pierre Bouillon, Sylvain Bergh, Jon Ólason, Einar Arctic sea-ice diffusion from observed and simulated Lagrangian trajectories |
topic_facet |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience We characterize sea-ice drift by applying a Lagrangian diffusion analysis to buoy trajectories from the International Arctic Buoy Programme (IABP) dataset and from two different models: the standalone Lagrangian sea-ice model neXtSIM and the Eulerian coupled ice-ocean model used for the TOPAZ reanalysis. By applying the diffusion analysis to the IABP buoy trajectories over the period 1979-2011, we confirm that sea-ice diffusion follows two distinct regimes (ballistic and Brownian) and we provide accurate values for the diffusivity and integral timescale that could be used in Eulerian or Lagrangian passive tracers models to simulate the transport and diffusion of particles moving with the ice. We discuss how these values are linked to the evolution of the fluctuating displacements variance and how this information could be used to define the size of the search area around the position predicted by the mean drift. By comparing observed and simulated sea-ice trajectories for three consecutive winter seasons (2007-2011), we show how the characteristics of the simulated motion may differ from or agree well with observations. This comparison illustrates the usefulness of first applying a diffusion analysis to evaluate the output of modeling systems that include a sea-ice model before using these in, e.g., oil spill trajectory models or, more generally, to simulate the transport of passive tracers in sea ice. |
author2 |
Nansen Environmental and Remote Sensing Center Bergen (NERSC) |
format |
Article in Journal/Newspaper |
author |
Rampal, Pierre Bouillon, Sylvain Bergh, Jon Ólason, Einar |
author_facet |
Rampal, Pierre Bouillon, Sylvain Bergh, Jon Ólason, Einar |
author_sort |
Rampal, Pierre |
title |
Arctic sea-ice diffusion from observed and simulated Lagrangian trajectories |
title_short |
Arctic sea-ice diffusion from observed and simulated Lagrangian trajectories |
title_full |
Arctic sea-ice diffusion from observed and simulated Lagrangian trajectories |
title_fullStr |
Arctic sea-ice diffusion from observed and simulated Lagrangian trajectories |
title_full_unstemmed |
Arctic sea-ice diffusion from observed and simulated Lagrangian trajectories |
title_sort |
arctic sea-ice diffusion from observed and simulated lagrangian trajectories |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.univ-grenoble-alpes.fr/hal-03405821 https://hal.univ-grenoble-alpes.fr/hal-03405821/document https://hal.univ-grenoble-alpes.fr/hal-03405821/file/Rampal2016bThe_Cryosphere.pdf https://doi.org/10.5194/tc-10-1513-2016 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice The Cryosphere |
genre_facet |
Arctic Sea ice The Cryosphere |
op_source |
ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.univ-grenoble-alpes.fr/hal-03405821 The Cryosphere, Copernicus 2016, 10 (4), pp.1513 - 1527. ⟨10.5194/tc-10-1513-2016⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-10-1513-2016 hal-03405821 https://hal.univ-grenoble-alpes.fr/hal-03405821 https://hal.univ-grenoble-alpes.fr/hal-03405821/document https://hal.univ-grenoble-alpes.fr/hal-03405821/file/Rampal2016bThe_Cryosphere.pdf doi:10.5194/tc-10-1513-2016 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/tc-10-1513-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
4 |
container_start_page |
1513 |
op_container_end_page |
1527 |
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1766331478577250304 |