A climate data record of year-round global sea-ice drift from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF)
Sea ice in the polar regions can move several tens of kilometres per day under the actions of winds, ocean currents, and internal stresses. Long-term observations of the rate and patterns of this motion are needed to characterize the full response of the polar environment to climate change. Here, we...
Published in: | Earth System Science Data |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2023
|
Subjects: | |
Online Access: | https://doi.org/10.5194/essd-15-5807-2023 https://doaj.org/article/9cfb37171c914ec88d2a2daec34f7238 |
id |
ftdoajarticles:oai:doaj.org/article:9cfb37171c914ec88d2a2daec34f7238 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:9cfb37171c914ec88d2a2daec34f7238 2024-01-21T10:01:43+01:00 A climate data record of year-round global sea-ice drift from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) T. Lavergne E. Down 2023-12-01T00:00:00Z https://doi.org/10.5194/essd-15-5807-2023 https://doaj.org/article/9cfb37171c914ec88d2a2daec34f7238 EN eng Copernicus Publications https://essd.copernicus.org/articles/15/5807/2023/essd-15-5807-2023.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-15-5807-2023 1866-3508 1866-3516 https://doaj.org/article/9cfb37171c914ec88d2a2daec34f7238 Earth System Science Data, Vol 15, Pp 5807-5834 (2023) Environmental sciences GE1-350 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/essd-15-5807-2023 2023-12-24T01:42:15Z Sea ice in the polar regions can move several tens of kilometres per day under the actions of winds, ocean currents, and internal stresses. Long-term observations of the rate and patterns of this motion are needed to characterize the full response of the polar environment to climate change. Here, we introduce a new climate data record (CDR) of year-round, global, daily sea-ice drift vectors covering 1991–2020. The motion vectors are computed from series of passive microwave imagery in the winter months and from a parametric free-drift model in the summer months. An evaluation against on-ice buoy trajectories reveals that the RMSEs of the sea-ice drift CDR are small and vary with hemisphere and seasons (2.1 km for Arctic winters, 2.6 km for Arctic summer, 3 to 4 km for the Antarctic sea ice). The CDR is un-biased for Arctic winter conditions. The bias is larger for Antarctic and for summer sea-ice motion. The CDR consists of daily product files holding the d X and d Y components of the drift vectors on an Equal-Area Scalable Earth (EASE2) grid with 75 km spacing as well as associated uncertainties and flags. It is prepared in the context of the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) and is readily available at https://doi.org/10.15770/EUM_SAF_OSI_0012 ( OSI SAF , 2022 ) . Article in Journal/Newspaper Antarc* Antarctic Arctic Climate change Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic Arctic The Antarctic Earth System Science Data 15 12 5807 5834 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 T. Lavergne E. Down A climate data record of year-round global sea-ice drift from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Sea ice in the polar regions can move several tens of kilometres per day under the actions of winds, ocean currents, and internal stresses. Long-term observations of the rate and patterns of this motion are needed to characterize the full response of the polar environment to climate change. Here, we introduce a new climate data record (CDR) of year-round, global, daily sea-ice drift vectors covering 1991–2020. The motion vectors are computed from series of passive microwave imagery in the winter months and from a parametric free-drift model in the summer months. An evaluation against on-ice buoy trajectories reveals that the RMSEs of the sea-ice drift CDR are small and vary with hemisphere and seasons (2.1 km for Arctic winters, 2.6 km for Arctic summer, 3 to 4 km for the Antarctic sea ice). The CDR is un-biased for Arctic winter conditions. The bias is larger for Antarctic and for summer sea-ice motion. The CDR consists of daily product files holding the d X and d Y components of the drift vectors on an Equal-Area Scalable Earth (EASE2) grid with 75 km spacing as well as associated uncertainties and flags. It is prepared in the context of the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) and is readily available at https://doi.org/10.15770/EUM_SAF_OSI_0012 ( OSI SAF , 2022 ) . |
format |
Article in Journal/Newspaper |
author |
T. Lavergne E. Down |
author_facet |
T. Lavergne E. Down |
author_sort |
T. Lavergne |
title |
A climate data record of year-round global sea-ice drift from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) |
title_short |
A climate data record of year-round global sea-ice drift from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) |
title_full |
A climate data record of year-round global sea-ice drift from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) |
title_fullStr |
A climate data record of year-round global sea-ice drift from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) |
title_full_unstemmed |
A climate data record of year-round global sea-ice drift from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) |
title_sort |
climate data record of year-round global sea-ice drift from the eumetsat ocean and sea ice satellite application facility (osi saf) |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/essd-15-5807-2023 https://doaj.org/article/9cfb37171c914ec88d2a2daec34f7238 |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic Climate change Sea ice |
genre_facet |
Antarc* Antarctic Arctic Climate change Sea ice |
op_source |
Earth System Science Data, Vol 15, Pp 5807-5834 (2023) |
op_relation |
https://essd.copernicus.org/articles/15/5807/2023/essd-15-5807-2023.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-15-5807-2023 1866-3508 1866-3516 https://doaj.org/article/9cfb37171c914ec88d2a2daec34f7238 |
op_doi |
https://doi.org/10.5194/essd-15-5807-2023 |
container_title |
Earth System Science Data |
container_volume |
15 |
container_issue |
12 |
container_start_page |
5807 |
op_container_end_page |
5834 |
_version_ |
1788691776454787072 |