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Quality Control For Community-based Sea-ice Model Development


A new collaborative organization for sea-ice model development, the CICE Consortium, has devised quality control procedures to maintain the integrity of its numerical codes' physical representations, enabling broad participation from the scientific community in the Consortium's open software development environment. Using output from five coupled and uncoupled configurations of the Los Alamos Sea Ice Model, CICE, we formulate quality control methods that exploit common statistical properties of sea-ice thickness, and test for significant changes in model results in a computationally efficient manner. New additions and changes to CICE are graded into four categories, ranging from bit-for-bit amendments to significant, answer-changing upgrades. These modifications are assessed using criteria that account for the high level of autocorrelation in sea-ice time series, along with a quadratic skill metric that searches for hemispheric changes in model answers across an array of different CICE configurations. These metrics also provide objective guidance for assessing new physical representations and code functionality. This article is part of the theme issue ‘Modelling of sea-ice phenomena’.

Article / Publication Data
Available Metadata
Accepted On
July 16, 2018
Fiscal Year
Peer Reviewed
Publication Name
Philosophical Transactions of The Royal Society A
Published On
August 20, 2018
Publisher Name
The Royal Society Publishing
Print Volume
Print Number
Page Range
Article ID:20170344
Submitted On
July 16, 2018


Not available


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