Daily pan-Arctic sea-ice lead maps for 2003-2015, with links to maps in NetCDF format ...
The presence of sea-ice leads represents a key feature of the Arctic sea ice cover. Leads promote the flux of sensible and latent heat from the ocean to the cold winter atmosphere and are thereby crucial for air-sea-ice-ocean interactions. We here apply a binary segmentation procedure to identify le...
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ftdatacite:10.1594/pangaea.854411 2024-03-31T07:50:22+00:00 Daily pan-Arctic sea-ice lead maps for 2003-2015, with links to maps in NetCDF format ... Willmes, Sascha Heinemann, Günther 2015 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.854411 https://doi.pangaea.de/10.1594/PANGAEA.854411 en eng PANGAEA https://meteo.uni-trier.de/arcleads.php https://dx.doi.org/10.3390/rs8010004 https://dx.doi.org/10.1594/pangaea.955561 https://meteo.uni-trier.de/arcleads.php Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 DATE/TIME File name Uniform resource locator/link to file File size Sea-ice lead segmentation technique Willmes and Heinemann, 2015 dataset Dataset Supplementary Dataset 2015 ftdatacite https://doi.org/10.1594/pangaea.85441110.3390/rs801000410.1594/pangaea.955561 2024-03-04T13:55:22Z The presence of sea-ice leads represents a key feature of the Arctic sea ice cover. Leads promote the flux of sensible and latent heat from the ocean to the cold winter atmosphere and are thereby crucial for air-sea-ice-ocean interactions. We here apply a binary segmentation procedure to identify leads from MODIS thermal infrared imagery on a daily time scale. The method separates identified leads into two uncertainty categories, with the high uncertainty being attributed to artifacts that arise from warm signatures of unrecognized clouds. Based on the obtained lead detections, we compute quasi-daily pan-Arctic lead maps for the months of January to April, 2003–2015. Our results highlight the marginal ice zone in the Fram Strait and Barents Sea as the primary region for lead activity. The spatial distribution of the average pan-Arctic lead frequencies reveals, moreover, distinct patterns of predominant fracture zones in the Beaufort Sea and along the shelf-breaks, mainly in the Siberian sector of the Arctic ... : Please note: A new version of this data set featuring improved lead detection, spatial resolution and ESPG:3413 grid is available (Reiser et al., 2020, doi:10.3390/rs12121957). The daily data is published in Willmes et al. (2023).We here present quasi-daily pan-Arctic lead maps for the months of January to April from 2003 to 2015 at a spatial resolution of less than 2 km². This data set can be used to deduct the occurrence, structure and dynamics of wintertime sea-ice leads and to assess seasonal divergence patterns of the Arctic Ocean.The daily maps are provided in one NetCDF file for each year. Each maps contains 5 categories, indicated by different numbers: 0: land mask, 1: no data (cloud or open ocean), 2: sea ice, 3: artifact (high uncertainty) and 4: lead. A latitude/longitude map is provided in a separate NetCDF file. ... Dataset Arctic Barents Sea Beaufort Sea Fram Strait Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Barents Sea |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
DATE/TIME File name Uniform resource locator/link to file File size Sea-ice lead segmentation technique Willmes and Heinemann, 2015 |
spellingShingle |
DATE/TIME File name Uniform resource locator/link to file File size Sea-ice lead segmentation technique Willmes and Heinemann, 2015 Willmes, Sascha Heinemann, Günther Daily pan-Arctic sea-ice lead maps for 2003-2015, with links to maps in NetCDF format ... |
topic_facet |
DATE/TIME File name Uniform resource locator/link to file File size Sea-ice lead segmentation technique Willmes and Heinemann, 2015 |
description |
The presence of sea-ice leads represents a key feature of the Arctic sea ice cover. Leads promote the flux of sensible and latent heat from the ocean to the cold winter atmosphere and are thereby crucial for air-sea-ice-ocean interactions. We here apply a binary segmentation procedure to identify leads from MODIS thermal infrared imagery on a daily time scale. The method separates identified leads into two uncertainty categories, with the high uncertainty being attributed to artifacts that arise from warm signatures of unrecognized clouds. Based on the obtained lead detections, we compute quasi-daily pan-Arctic lead maps for the months of January to April, 2003–2015. Our results highlight the marginal ice zone in the Fram Strait and Barents Sea as the primary region for lead activity. The spatial distribution of the average pan-Arctic lead frequencies reveals, moreover, distinct patterns of predominant fracture zones in the Beaufort Sea and along the shelf-breaks, mainly in the Siberian sector of the Arctic ... : Please note: A new version of this data set featuring improved lead detection, spatial resolution and ESPG:3413 grid is available (Reiser et al., 2020, doi:10.3390/rs12121957). The daily data is published in Willmes et al. (2023).We here present quasi-daily pan-Arctic lead maps for the months of January to April from 2003 to 2015 at a spatial resolution of less than 2 km². This data set can be used to deduct the occurrence, structure and dynamics of wintertime sea-ice leads and to assess seasonal divergence patterns of the Arctic Ocean.The daily maps are provided in one NetCDF file for each year. Each maps contains 5 categories, indicated by different numbers: 0: land mask, 1: no data (cloud or open ocean), 2: sea ice, 3: artifact (high uncertainty) and 4: lead. A latitude/longitude map is provided in a separate NetCDF file. ... |
format |
Dataset |
author |
Willmes, Sascha Heinemann, Günther |
author_facet |
Willmes, Sascha Heinemann, Günther |
author_sort |
Willmes, Sascha |
title |
Daily pan-Arctic sea-ice lead maps for 2003-2015, with links to maps in NetCDF format ... |
title_short |
Daily pan-Arctic sea-ice lead maps for 2003-2015, with links to maps in NetCDF format ... |
title_full |
Daily pan-Arctic sea-ice lead maps for 2003-2015, with links to maps in NetCDF format ... |
title_fullStr |
Daily pan-Arctic sea-ice lead maps for 2003-2015, with links to maps in NetCDF format ... |
title_full_unstemmed |
Daily pan-Arctic sea-ice lead maps for 2003-2015, with links to maps in NetCDF format ... |
title_sort |
daily pan-arctic sea-ice lead maps for 2003-2015, with links to maps in netcdf format ... |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://dx.doi.org/10.1594/pangaea.854411 https://doi.pangaea.de/10.1594/PANGAEA.854411 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Beaufort Sea Fram Strait Sea ice |
genre_facet |
Arctic Barents Sea Beaufort Sea Fram Strait Sea ice |
op_relation |
https://meteo.uni-trier.de/arcleads.php https://dx.doi.org/10.3390/rs8010004 https://dx.doi.org/10.1594/pangaea.955561 https://meteo.uni-trier.de/arcleads.php |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.85441110.3390/rs801000410.1594/pangaea.955561 |
_version_ |
1795028569000247296 |