ff701d8e-cd28-4684-af2d-f72c5220c352 ETT S.p.A. 2026-08-26T14:04:42 ISO 19115:2003/19139 1.0 3 613 12.5 632 12.5 384 12.5 EPSG:3412 European circumpolar sea ice production fluxes 2024-07-31 This dataset on sea ice production (SIP) in Antarctic coastal polynyas offers crucial insights into these regions' roles in sea ice and dense water formation. Using Earth Observation data and atmospheric reanalysis, the dataset employs a heat budget method to estimate SIP. It incorporates sea ice concentration (SIC) from passive microwave sensors and near-surface wind speed and surface air temperature from ECMWF ERA5 reanalysis. Comparative analysis with previous studies confirms the dataset's accuracy in depicting spatial patterns and the magnitude of ice production, though some variations exist across larger polynyas. While simplifications may increase uncertainties in absolute SIP values, this dataset is a valuable resource for understanding the dynamics and variability of Antarctic polynya SIP from 1992 to 2023. Lars Kaleschke Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) https://catalog.s4oceanice.eu:/geonetwork/srv/api/records/ff701d8e-cd28-4684-af2d-f72c5220c352/attachments/cropped-o_ice_logo2-2-1.webp sea ice production sea ice polynyas ERA5 Antarctic coastal polynyas Earth Observation OCEAN ICE SEA ICE Global Change Master Directory (GCMD) Keywords 2026-08-06 geonetwork.thesaurus.external.theme.ardc-curated_gcmd-sciencekeywords_19-4-2024-09-06 Antarctica Southern Ocean Continents, countries, sea regions of the world. 2015-07-17 geonetwork.thesaurus.external.place.regions Creative Commons Attribution 4.0 International (CC BY 4.0). eng oceans climatologyMeteorologyAtmosphere 1992-01-31 2023-12-31 -180.00 180.00 -90.00 -60.516 EU OCEAN ICE Deliverable D1.4 (June 2024), Gridded European circumpolar sea ice production fluxes. OCEAN ICE is co-funded by the European Union, Horizon Europe Funding Programme for research and innovation under grant agreement Nr. 101060452 and by UK Research and Innovation. NetCDF https://er1.s4oceanice.eu/erddap/griddap/EU_circumpolar_seaice_prod_fluxes_1992_2023.html WWW:LINK-1.0-http--opendap ERDDAP Data Subset Form ERDDAP Data Access Form for subsetting, visualizing and downloading the gridded sea ice production dataset in multiple formats. https://zenodo.org/records/11652686 WWW:LINK-1.0-http--link OCEAN ICE Zenodo Community D1.4 dataset on Zenodo https://gitlab.awi.de/ocean-ice/deliverable WWW:LINK-1.0-http--link 1.4 GitLab repository GitLab repository providing background information and supporting material for OCEAN ICE Deliverable D1.4. Sea ice production was estimated for Antarctic coastal polynyas using a heat-budget approach based on Earth Observation sea ice concentration data from passive microwave sensors and atmospheric variables from ECMWF ERA5 reanalysis, including near-surface wind speed and surface air temperature. Monthly sea ice production fields were generated for the period 1992–2023 and distributed as a gridded NetCDF dataset at 12.5 km spatial resolution.