Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X University of Gothenburg GU https://www.gu.se https://ror.org/01tm6cn81 Heuzé Céline celine.heuze@gu.se 0000-0002-8850-5868 University of Gothenburg GU https://www.gu.se https://ror.org/01tm6cn81 2025 Daily Arctic polynya masks 1978-2024 from two satellite sea ice products (SMMR, SSM/I & SSMIS and SMOS & SMOS-SMAP) dataset https://doi.org/10.1594/PANGAEA.987383 2025-11-17T13:24:24 This dataset provides four daily Arctic polynya masks derived from two satellite sea ice products. The products used are (1) the daily sea ice concentration (SIC) dataset from the National Snow and Ice Data Center (DiGirolamo et al., 2022; for years 1978–2024) and (2) the daily thin ice thickness (SIT) dataset from the University of Bremen Sea Ice Remote Sensing Group (SMOS and SMOS/SMAP Thin Ice Thickness, Huntemann et al., 2014 and Paţilea et al., 2019; for years 2012–2024). The study region covers the Arctic Ocean 65° - 90°N. Two wintertime study periods are included, corresponding to two research articles (Wong, C H M et al., 2026; Heuzé, C & Wong, C H M, in 2025). Polynya thresholds are defined as 50% for SIC and 20 cm for SIT. Details of the full polynya detection method are provided in Wong, C H M et al. (2026). Heuzé Céline celine.heuze@gu.se 0000-0002-8850-5868 Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X 2025 Automatic detection of Arctic polynyas using hybrid supervised-unsupervised deep learning journal article The Cryosphere 19(11) https://doi.org/10.5194/tc-19-6043-2025 6043-6058 Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X Heuzé Céline celine.heuze@gu.se 0000-0002-8850-5868 Ickes Luisa 0000-0001-8772-4164 Zhou Lu zhou-l15@mails.tsinghua.edu.cn 0000-0001-8520-937X 2026 The Spatiotemporal Variability, Trends, and Drivers of Winter Arctic Polynyas journal article Journal of Climate 39(6) https://doi.org/10.1175/JCLI-D-25-0312.1 1433-1455 DiGirolamo Nicolo Parkinson Claire Cavalieri Donald J Gloersen Per Zwally H 2022 Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 2 dataset NASA National Snow and Ice Data Center Distributed Active Archive Center https://doi.org/10.5067/MPYG15WAA4WX Huntemann Marcus marcus.huntemann@uni-bremen.de Heygster Georg heygster@physik.uni-bremen.de 0000-0003-2232-7429 Kaleschke Lars lars.kaleschke@awi.de https://wiki.zmaw.de/ifm/LarsKaleschke 0000-0001-7086-3299 Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Mäkynen M 0000-0003-1250-6300 Drusch Matthias 2014 Empirical sea ice thickness retrieval during the freeze-up period from SMOS high incident angle observations journal article The Cryosphere 8(2) https://doi.org/10.5194/tc-8-439-2014 439-451 Paţilea Cătălin Heygster Georg heygster@physik.uni-bremen.de 0000-0003-2232-7429 Huntemann Marcus marcus.huntemann@uni-bremen.de Spreen Gunnar gunnar.spreen@uni-bremen.de https://seaice.uni-bremen.de/gunnar-spreen/ 0000-0003-0165-8448 2019 Combined SMAP–SMOS thin sea ice thickness retrieval journal article The Cryosphere 13(2) https://doi.org/10.5194/tc-13-675-2019 675-691 0.0 0.0 90.0 90.0 0.0 90.0 1978-11-01T00:00:00 2024-04-30T00:00:00 Swedish National Space Agency SNSA https://doi.org/10.13039/501100001859 2022-00149 Mapping Arctic polynyas from space (MAPS) Swedish Research Council VR https://doi.org/10.13039/501100004359 2022-06725_VR National Academic Infrastructure for Supercomputing in Sweden (NAISS) https://www.vr.se/english/swecris.html#/project/2022-06725_VR Arctic_65-90N 65.0 -180.0 Arctic 90.0 180.0 Satellite remote sensing SAT 12 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Identification ID Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X ID DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X start Date/Time (start) DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X end Date/Time (end) LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X Longitude netCDF file netCDF https://doi.org/10.5065/D6H70CW6 Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X netCDF netCDF file (File Size) netCDF (Size) Bytes https://doi.org/10.5065/D6H70CW6 Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X netCDF (Size) [Bytes] File content Content Wong Carmen Hau Man hau.man.wong@gu.se 0000-0002-4880-496X Content CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Arctic sea ice Polynya sea ice-atmosphere interactions author113402 author113403 author113404 author113405 author113406 author113449 author21599 author24614 author41127 author52094 author55080 author56458 author56701 author64062 author71129 author74255 author83408 award4464 award4465 curlevel30 event3306564 funder20824 funder21585 geocode1599 geocode1600 geocode1601 inst20492 journal4140 journal8347 license21 method11573 param516439 param7056 param99583 pi113402 ref136338 ref136339 ref136344 ref136402 ref136403 term20616 term43975 term48036 term53159 term53999