Unknown
PANGAEA
In:
Supplement to: Ungermann, Mischa; Tremblay, L Bruno; Martin, Torge; Losch, Martin (2017): Impact of the Ice Strength Formulation on the Performance of a Sea Ice Thickness Distribution Model in the Arctic. Journal of Geophysical Research: Oceans, 122(3), 2090-2107, https://doi.org/10.1002/2016JC012128
Publication Date:
2023-05-12
Description:
The impact of a subgrid-scale ice thickness distribution (ITD) and two standard ice strength formulations on simulated Arctic sea ice climate is investigated. To this end different model configurations with and without an ITD were tuned by minimizing the weighted mean error between the simulated and observed sea ice concentration, thickness and drift speed with an semi-automatic parameter optimization routine. The standard ITD and ice strength parameterization lead to larger errors when compared to the simple single-category model with an ice strength parameterization based on the mean ice thickness. Interestingly, the simpler ice strength formulation, which depends linearly on the mean ice thickness, also reduces the model-observation error when using an ITD. For the ice strength parameterization that makes use of the ITD, the effective ice strength depends strongly on the number of thickness categories, so that introducing more categories can lead to overall thicker ice that is more easily deformed.
Keywords:
Arctic; File content; File format; File name; File size; pan-Arctic; Uniform resource locator/link to file
Type:
Dataset
Format:
text/tab-separated-values, 30 data points
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