Back to opportunities | Category Index
These are the intended use-case/justification for one or multiple variable groups. Opportunities are linked to relevant experiment groups. Identifying opportunities helps to provide a structure to map variables against requirements. Each opportunity description will convey why this combination of variables and experiments is important and how they contribute to impact.
| Attribute | Value |
|---|---|
| description | This opportunity provides essential diagnostics for understanding past and future sea ice changes, their drivers, and impacts. It enables the quantification of sea ice’s critical role within the climate system and supports a comprehensive study of the rapid transitions currently underway in the polar regions. |
| desirable_ensemble_size | 1000 |
| expected_impacts | Sea ice diagnostics are essential for describing and interpreting past and future changes in Arctic and Antarctic sea ice and for identifying the key drivers of these changes. For instance, detailed diagnostics can help determine how components of the sea ice mass balance — such as surface, basal, or lateral growth and melt — will change in the evolving Arctic and Antarctic marine regions. These diagnostics also help single out the sources of energy driving these changes (such as anthropogenic forcing or oceanic heat transport), disentangle the contributions from internal vs forced variability, and document the role of contributing feedbacks. Finally, model-based diagnostics can guide the long-term design of sustained observing systems in these remote and rapidly changing environments. |
| justification_of_resources | This opportunity requests model outputs to reproduce and expand upon the work carried out during CMIP6. It enables a better understanding of sea ice-related processes and contributes to identifying and, ultimately, reducing biases and errors in sea ice simulations by large-scale climate models. Specifically, it allows researchers to conduct large-scale analyses (sea ice extent, volume, thickness) as well as process-level analysis of the sea ice heat, momentum and mass budgets with the goal to better understand the mechanisms driving sea ice changes. |
| lead_theme | Ocean & Sea-Ice |
| minimum_ensemble_size | 10 |
| name | Sea Ice Changes, Drivers and Impacts |
| opportunity_id | 73 |
| technical_notes | scenario_extensions is requested only for the high priority variable groups attached to this opportunity. |
| data_request_themes | Ocean & Sea-Ice |
| experiment_groups | scenarios_extensions, deck, fast-track, scenarios |
| mips | SIMIP, DCPP, TIPMIP, PMIP, FishMIP, DAMIP |
| time_subsets | 80ac3156-a698-11ef-914a-613c0433d878 |
| variable_groups | seaice_global_daily_basic, baseline_monthly, seaice_budget_area_monthly, seaice_budget_energy_monthly, seaice_budget_freshwater_monthly ... and 9 moreseaice_global_daily_basic, baseline_monthly, seaice_budget_area_monthly, seaice_budget_energy_monthly, seaice_budget_freshwater_monthly, seaice_budget_mass_monthly, seaice_dynamics_advanced, seaice_dynamics_basic, seaice_gcos_ecv, seaice_global_monthly_advanced, seaice_global_monthly_basic, seaice_state_daily_basic, seaice_state_monthly_advanced, seaice_state_monthly_basic |