Weighted essentially non-oscillatory scheme for cloud edge problem

Yuya Baba, Keiko Takahashi

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The weighted essentially non-oscillatory (WENO) scheme is applied to a cloud-resolving model and is used for the cloud edge problem. Validity is tested using three idealized experiments and the results are compared with those of recent flux-corrected transport (FCT) schemes. In all three experiments, the WENO scheme simulates the energy properties of cloud edges better than the FCT schemes do. Because the WENO scheme can capture cloud edge more sharply, the buoyancy of the cloud edge is simulated without numerical diffusion. The increased buoyancy also causes enhancement of the convection cycle in deep convection through the cold pool, which is formed below the convective cell. This fact indicates that underestimations of convection strengths can be avoided using the WENO scheme.

Original languageEnglish
Pages (from-to)1374-1388
Number of pages15
JournalQuarterly Journal of the Royal Meteorological Society
Volume139
Issue number674
DOIs
Publication statusPublished - 2013 Jul
Externally publishedYes

Keywords

  • Advection scheme
  • Cloud edge problem
  • Cloud-resolving model

ASJC Scopus subject areas

  • Atmospheric Science

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