Sea Ice Outlook  2020 August Report  Individual Outlook

To be consistent with the validating sea ice extent index from  NSIDC, if possible, please first compute the average sea ice concentration for the month  and then compute the extent as the sum of cell areas > 15%. [...] The ocean and sea ice initial conditions at the  beginning of the hindcast were derived from the 32-year spin-up of the ocean-sea ice model only  (RASM G-case) forced with CORE2 reanalysis for 1948-1979. [...] The initial conditions for the July Sea Ice  Outlook were derived from the RASM 1979-2020 hindcast and are physically and internally  consistent across all the model components. [...]   If you use a dynamic model, please specify the name of the model as a whole and each  component including version numbers and how the component is initialized:   [DynamicModelType] If available from your method. [...] The uncertainty of pan-Arctic September sea ice extent was estimated from the 31-member  ensemble.