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The report starts with one page for each unique grid, with some mesh size metrics, a plot of the grid and a plot of the analytic test function (spherical harmonic Y16,32) used to compute map file errors. The report then gives one page for each unique map file, with map algorithm statistics (min and max weights, row sums (consistency) and column sums (conservation)) as well as the L2 and max errors for mapping our test function. For non-global maps (i.e. ocean->atmsphere), the errors are given over the full range of the map (including coastal regions with partial land/ocean fractions) and over the subdomain of 100% land or ocean points (where the maps usually perform better). The map file pages list the important characteristics that should be checked for each map including metrics for conservation, consistency and monotonicity. For ocean maps, plots are included to verify the above properties hold over ocean points and remain well behaved in coastal regions.
Work done by Mark Taylor and two undergraduate interns: This was a 2023 summer intern project (Dallin Seyfrield ( BYU ) and , Drew Sukova (Purdue), Mark Taylor ). Funded by the E3SM ECP project.
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