1 / 1

Objective

Sea ice volume and age : Sensitivity to physical parameterizations and thickness resolution in the CICE sea ice model. Objective

zuwena
Download Presentation

Objective

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Sea ice volume and age: Sensitivity to physical parameterizations and thickness resolution in the CICE sea ice model Objective To combine age and volume analyses to discriminate among the effects of parameterizations that are not easily distinguished in terms of ice area or volume alone. • Approach • Compare model output with satellite derived age and volume observations • Evaluate CICE5 physics options (anisotropic rheology, variable form drag, ridging) • Identify layer, thickness distribution (ITD) resolution sensitivities, biases • Analyze dynamic-thermodynamic process interactions that lead to biases Sea ice age (year) from (left) observations and (right) CICE, using the variable form drag parameterization. • Impact • Five thickness categories are insufficient to resolve ITD; additional thick-ice categories are needed. • New physics packages need to be tuned. • Dynamic-thermodynamic feedback processes can have counter-intuitive impacts on ice volume and age. Hunke, E. C. Sea ice volume and age: Sensitivity to physical parameterizations and resolution in the CICE sea ice model. Ocean Modelling, DOI: 10.1016/j.ocemod.2014.08.001. LA-UR-14-21531

More Related