Evaluation of global atmospheric solvers using extensions of the jablonowski and williamson baroclinic wave test case

Sang Hun Park, William C. Skamarock, Joseph B. Klemp, Laura D. Fowler, Michael G. Duda

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The hydrostatic and nonhydrostatic atmospheric solvers within the Model for Prediction Across Scales (MPAS) are tested using an extension of Jablonowski and Williamson baroclinic wavetest case that includes moisture. This study uses the dry test case to verify the correctness of the solver formulation and coding by comparing results from the two different MPAS solvers and from the global version of the Advanced Research Weather Research and Forecasting Model (ARW-WRF). A normal mode initialization is used in the Jablonowski and Williamson test, and the most unstable mode is found to be wavenumber 9. The three solvers produce very similar normal mode structures and nonlinear baroclinic wave evolutions. Solutions produced using MPAS variable-resolution meshes are quite similar to the results from the quasi-uniform mesh with equivalent resolution. Importantly, the small-scale flow features are better resolved in the fine-resolution region and there is no apparent wave distortion in the fine-to-coarse mesh transition region, thus demonstrating the potential value of MPAS for multiscale flow simulation

Original languageEnglish
Pages (from-to)3116-3129
Number of pages14
JournalMonthly Weather Review
Volume141
Issue number9
DOIs
Publication statusPublished - 2013 Sep 17

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baroclinic wave
prediction
nonlinear wave
hydrostatics
moisture
evaluation
test
weather
simulation

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

Park, Sang Hun ; Skamarock, William C. ; Klemp, Joseph B. ; Fowler, Laura D. ; Duda, Michael G. / Evaluation of global atmospheric solvers using extensions of the jablonowski and williamson baroclinic wave test case. In: Monthly Weather Review. 2013 ; Vol. 141, No. 9. pp. 3116-3129.
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Evaluation of global atmospheric solvers using extensions of the jablonowski and williamson baroclinic wave test case. / Park, Sang Hun; Skamarock, William C.; Klemp, Joseph B.; Fowler, Laura D.; Duda, Michael G.

In: Monthly Weather Review, Vol. 141, No. 9, 17.09.2013, p. 3116-3129.

Research output: Contribution to journalArticle

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