Daily sea ice lead data for Arctic and Antarctic
The data show the long-term relative sea ice lead frequencies for the Arctic (November – April 2002/03 – 2018/19) and Antarctic (April – September 2003 – 2019), respectively. The data are projected onto the coordinate grid EPSG:3413 (ARC) and ESPG:3412 (ANT) at a spatial resolution of 1 km² and are...
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2020
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.917588 https://doi.org/10.1594/PANGAEA.917588 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.917588 2024-09-15T17:48:05+00:00 Daily sea ice lead data for Arctic and Antarctic Reiser, Fabian Willmes, Sascha Heinemann, Günther MEDIAN LATITUDE: 0.000000 * MEDIAN LONGITUDE: 0.000000 * SOUTH-BOUND LATITUDE: -90.000000 * WEST-BOUND LONGITUDE: 0.000000 * NORTH-BOUND LATITUDE: 90.000000 * EAST-BOUND LONGITUDE: 0.000000 2020 text/tab-separated-values, 8 data points https://doi.pangaea.de/10.1594/PANGAEA.917588 https://doi.org/10.1594/PANGAEA.917588 en eng PANGAEA Willmes, Sascha; Heinemann, Günther; Reiser, Fabian (2023): ArcLeads: Daily sea-ice lead maps for the Arctic, 2002-2021, NOV-APR [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955561 (new version 2023-02) Reiser, Fabian; Willmes, Sascha; Heinemann, Günther (2020): A New Algorithm for Daily Sea Ice Lead Identification in the Arctic and Antarctic Winter from Thermal-Infrared Satellite Imagery. Remote Sensing, 12(12), 1957, https://doi.org/10.3390/rs12121957 Hall, D K; Riggs, George (2015): MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km. NASA National Snow and Ice Data Center DAAC (accessed on 15 October 2019), https://doi.org/10.5067/MODIS/MOD29.006 Willmes, Sascha; Heinemann, Günther (2015): Sea-Ice Wintertime Lead Frequencies and Regional Characteristics in the Arctic, 2003–2015. Remote Sensing, 8(1), 4, https://doi.org/10.3390/rs8010004 https://doi.pangaea.de/10.1594/PANGAEA.917588 https://doi.org/10.1594/PANGAEA.917588 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Arctic CATS CATS - The Changing Arctic Transpolar System Event label File format File name File size leads pan-Antarctica pan-Arctic Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas satellite data Sea ice SPP1158 Uniform resource locator/link to file dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.91758810.1594/PANGAEA.95556110.3390/rs1212195710.5067/MODIS/MOD29.00610.3390/rs8010004 2024-07-24T02:31:34Z The data show the long-term relative sea ice lead frequencies for the Arctic (November – April 2002/03 – 2018/19) and Antarctic (April – September 2003 – 2019), respectively. The data are projected onto the coordinate grid EPSG:3413 (ARC) and ESPG:3412 (ANT) at a spatial resolution of 1 km² and are stored as NetCDF4 files. Ice surface temperature data (MYD/MOD29 col. 6 [Hall and Riggers, 2015]) from the Moderate-Resolution Imaging Spectroradiometer (MODIS) are used to derive daily observations of sea ice leads in both polar regions. Sea ice leads are defined as significant local surface temperature anomalies and they are automatically identified during a two-stage process, including 1) the tile-based retrieval of potential sea ice leads and 2) the identification of cloud artefacts using fuzzy logic (see Reiser et al., 2020 for further details [Reiser et al., 2020]). Subsequently, all daily sea ice lead maps are combined to long-term averages showing the climatological distribution of leads in the Arctic and Antarctic, respectively. The dataset represents an update for the Arctic (Willmes & Heinemann, 2016 [Willmes and Heinemann, 2016]) and is the first for the Antarctic. These maps reveal, that multiple distinct features with increased lead frequencies are present that are related to bathymetric structures, e.g. the continental shelf break or ridges and troughs. Dataset Antarc* Antarctic Antarctica Arctic Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(0.000000,0.000000,90.000000,-90.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic CATS CATS - The Changing Arctic Transpolar System Event label File format File name File size leads pan-Antarctica pan-Arctic Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas satellite data Sea ice SPP1158 Uniform resource locator/link to file |
spellingShingle |
Arctic CATS CATS - The Changing Arctic Transpolar System Event label File format File name File size leads pan-Antarctica pan-Arctic Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas satellite data Sea ice SPP1158 Uniform resource locator/link to file Reiser, Fabian Willmes, Sascha Heinemann, Günther Daily sea ice lead data for Arctic and Antarctic |
topic_facet |
Arctic CATS CATS - The Changing Arctic Transpolar System Event label File format File name File size leads pan-Antarctica pan-Arctic Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas satellite data Sea ice SPP1158 Uniform resource locator/link to file |
description |
The data show the long-term relative sea ice lead frequencies for the Arctic (November – April 2002/03 – 2018/19) and Antarctic (April – September 2003 – 2019), respectively. The data are projected onto the coordinate grid EPSG:3413 (ARC) and ESPG:3412 (ANT) at a spatial resolution of 1 km² and are stored as NetCDF4 files. Ice surface temperature data (MYD/MOD29 col. 6 [Hall and Riggers, 2015]) from the Moderate-Resolution Imaging Spectroradiometer (MODIS) are used to derive daily observations of sea ice leads in both polar regions. Sea ice leads are defined as significant local surface temperature anomalies and they are automatically identified during a two-stage process, including 1) the tile-based retrieval of potential sea ice leads and 2) the identification of cloud artefacts using fuzzy logic (see Reiser et al., 2020 for further details [Reiser et al., 2020]). Subsequently, all daily sea ice lead maps are combined to long-term averages showing the climatological distribution of leads in the Arctic and Antarctic, respectively. The dataset represents an update for the Arctic (Willmes & Heinemann, 2016 [Willmes and Heinemann, 2016]) and is the first for the Antarctic. These maps reveal, that multiple distinct features with increased lead frequencies are present that are related to bathymetric structures, e.g. the continental shelf break or ridges and troughs. |
format |
Dataset |
author |
Reiser, Fabian Willmes, Sascha Heinemann, Günther |
author_facet |
Reiser, Fabian Willmes, Sascha Heinemann, Günther |
author_sort |
Reiser, Fabian |
title |
Daily sea ice lead data for Arctic and Antarctic |
title_short |
Daily sea ice lead data for Arctic and Antarctic |
title_full |
Daily sea ice lead data for Arctic and Antarctic |
title_fullStr |
Daily sea ice lead data for Arctic and Antarctic |
title_full_unstemmed |
Daily sea ice lead data for Arctic and Antarctic |
title_sort |
daily sea ice lead data for arctic and antarctic |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.917588 https://doi.org/10.1594/PANGAEA.917588 |
op_coverage |
MEDIAN LATITUDE: 0.000000 * MEDIAN LONGITUDE: 0.000000 * SOUTH-BOUND LATITUDE: -90.000000 * WEST-BOUND LONGITUDE: 0.000000 * NORTH-BOUND LATITUDE: 90.000000 * EAST-BOUND LONGITUDE: 0.000000 |
long_lat |
ENVELOPE(0.000000,0.000000,90.000000,-90.000000) |
genre |
Antarc* Antarctic Antarctica Arctic Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Sea ice |
op_relation |
Willmes, Sascha; Heinemann, Günther; Reiser, Fabian (2023): ArcLeads: Daily sea-ice lead maps for the Arctic, 2002-2021, NOV-APR [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955561 (new version 2023-02) Reiser, Fabian; Willmes, Sascha; Heinemann, Günther (2020): A New Algorithm for Daily Sea Ice Lead Identification in the Arctic and Antarctic Winter from Thermal-Infrared Satellite Imagery. Remote Sensing, 12(12), 1957, https://doi.org/10.3390/rs12121957 Hall, D K; Riggs, George (2015): MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km. NASA National Snow and Ice Data Center DAAC (accessed on 15 October 2019), https://doi.org/10.5067/MODIS/MOD29.006 Willmes, Sascha; Heinemann, Günther (2015): Sea-Ice Wintertime Lead Frequencies and Regional Characteristics in the Arctic, 2003–2015. Remote Sensing, 8(1), 4, https://doi.org/10.3390/rs8010004 https://doi.pangaea.de/10.1594/PANGAEA.917588 https://doi.org/10.1594/PANGAEA.917588 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.91758810.1594/PANGAEA.95556110.3390/rs1212195710.5067/MODIS/MOD29.00610.3390/rs8010004 |
_version_ |
1810289015387062272 |