Sensitivity analysis and parameter tuning of a sea-ice model.

The values of many of the parameters in climate models are often not known with any great precision. We describe the use of automatic differentiation to examine the sensitivity of an uncoupled dynamic-thermodynamic sea-ice model to various parameters. We also illustrate the effectiveness of using th...

Full description

Bibliographic Details
Main Authors: Kim, J. G., Hovland, P. D.
Other Authors: United States. Department of Energy.
Format: Article in Journal/Newspaper
Language:English
Published: Argonne National Laboratory 2000
Subjects:
Tuning
Sensitivity Analysis
Accuracy
Sensitivity
Simulation
Optimization
54 Environmental Sciences
Climate Models
Algorithms
Sea ice
Online Access:http://digital.library.unt.edu/ark:/67531/metadc725467/
Description
Summary:The values of many of the parameters in climate models are often not known with any great precision. We describe the use of automatic differentiation to examine the sensitivity of an uncoupled dynamic-thermodynamic sea-ice model to various parameters. We also illustrate the effectiveness of using these sensitivity derivatives with an optimization algorithm to tune the parameters to maximize the agreement between simulated results and observational data.

Similar Items