Daily sea ice lead data for Arctic and Antarctic

DOI

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.

Identifier
DOI https://doi.org/10.1594/PANGAEA.917588
Related Identifier IsObsoletedBy https://doi.org/10.1594/PANGAEA.955561
Related Identifier IsSupplementTo https://doi.org/10.3390/rs12121957
Related Identifier References https://doi.org/10.5067/MODIS/MOD29.006
Related Identifier References https://doi.org/10.3390/rs8010004
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.917588
Provenance
Creator Reiser, Fabian ORCID logo; Willmes, Sascha ORCID logo; Heinemann, Günther ORCID logo
Publisher PANGAEA
Publication Year 2020
Funding Reference Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03F0776D https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03F0776D Das arktische transpolare System im Wandel; Vorhaben: Veränderungen der Atmosphäre-Meereis-Ozean Interaktionen und deren Einfluß auf das transpolare System (TP 2); Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03F0831C https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03F0831C Vorhaben: Atmosphäre-Land-Meereis-Ozean Wechselwirkung; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 5472008 https://gepris.dfg.de/gepris/projekt/5472008 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID HE 2740/22 and WI 3314/3 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas (DFG-SPP1158)
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 8 data points
Discipline Earth System Research
Spatial Coverage (0.000W, -90.000S, 0.000E, 90.000N); Arctic