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NOSE Plans for a “Northern Ocean” (Arctic/sub-polar gyre) “SOSE”

NOSE Plans for a “Northern Ocean” (Arctic/sub-polar gyre) “SOSE”. Rationale. Have staid away so far from regional (eddy-permitting) North Atlantic and/or Arctic estimates

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NOSE Plans for a “Northern Ocean” (Arctic/sub-polar gyre) “SOSE”

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  1. NOSE Plans for a “Northern Ocean” (Arctic/sub-polar gyre) “SOSE”

  2. Rationale • Have staid away so far from regional (eddy-permitting) North Atlantic and/or Arctic estimates • Similar experience gained from SOSE for global effort can also be expected from a “NOSE” (added complications are dominant role of sea-ice, “convection sites”, overflows, …) • Highly relevant in light of observed changes in the Arctic • Specific requests in the light of several observing system efforts • US AMOC • Arctic Ocean Network

  3. The plan: a combined Artic/sub-polar gyre setup • Roughly 1/8 degree horizontal resolution (6 to 9 km) • Grid derived from 1/48 parent grid • Period likely 1992 to present (but question whether to extend to 1979) • Same approach as for ECCO re. observations, i.e. • Need to provide prior error estimates for all obs. • Attempt to use all available obs., in particular for sea-ice • Attempt to include model parameters, both from the ocean and the sea-ice

  4. The domain Generated from 1/48 parent grid (G. Forget)

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