EU project OCEAN:ICE Deliverable: D1.4 Gridded European circumpolar sea ice production fluxes
Creators
- 1. Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
Description
This deliverable is a new dataset of sea ice production (SIP) in Antarctic coastal polynyas, critical regions for sea ice formation and dense water formation. Using Earth Observation data and atmospheric reanalysis, we use a heat budget method to estimate the SIP. We use sea ice concentration (SIC) from passive microwave sensors and ECMWF ERA5 reanalysis for near-surface wind speed and surface air temperature. Comparison against previous literature shows broad consistency in spatial patterns and magnitude of ice production, with notable variations across larger polynyas. Despite simplifications and thereby increased uncertainties in the absolute ice production values, the data set provides valuable insights into the dynamics and variability of Antarctic polynya SIP for the period 1992-2023.
Files
OceanIce_deliverable.zip
Files
(129.8 MB)
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Additional details
Funding
Software
- Repository URL
- https://gitlab.awi.de/ocean-ice/deliverable
- Programming language
- Python
References
- Kaleschke, L., Lüpkes, C., Vihma, T., Haarpaintner, J., Bochert, A., Hartmann, J., & Heygster, G. (2001). SSM/I Sea Ice Remote Sensing for Mesoscale Ocean-Atmosphere Interaction Analysis. Canadian Journal of Remote Sensing, 27(5), 526–537. https://doi.org/10.1080/07038992.2001.10854892
- Ezraty, R., Girard-Ardhuin, F., Piolle, J. F., Kaleschke, L., and Heygster, G.: Arctic and Antarctic sea ice concentration and Arctic sea ice drift estimated from Special Sensor Microwave data, User's Manuel Version 2.1, CERSAT, 2007.