Pan-Arctic polynya area and ice production from the OPA-neXtSIM model

This dataset contains time series of polynya area (POLA) and ice production (IP) for winters 1999/2000 to 2017/2018 calculated for 17 Arctic polynya regions from the NANUK025-ILBOXE140-S model simulation. The simulation is based on the coupled ocean-sea-ice model OPA-neXtSIM (https://doi.org/10.5194/tc-2022-142), which was produced by Dr. Guillaume Boutin at the Nansen Environmental and Remote Sensing Center. 

POLA/IP estimates were derived from binary polynya masks generated using multiple polynya detection methods based on sea-ice thickness, and sea-ice growth-rate criteria. The data is provided for the winter period November-March at 6-hourly frequency. 
The 17 Arctic polynya regions are the same as in Preußer et al. (2016) (https://doi.org/10.1029/2019JC014976). 

The work has been supported by Norges Forskningsråd (grant no. 325292) and the Scale Aware Sea Ice Project (SASIP; grant no. G-24-67790), and the Swedish National Space Agency (dnr 2022-00149). SASIP is funded by Schmidt Sciences, a philanthropic initiative that seeks to improve societal outcomes by developing emerging science and technologies. 

For questions about the dataset, please contact jonathan.rheinlaender@nersc.no