Conservative constraint for a quasi-uniform overset grid on the sphere

Xindong Peng*, Feng Xiao, Keiko Takahashi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


A conservative constraint is presented for a new quasi-uniform overset (Yin-Yang) grid on the sphere. The Yin-Yang grid is a newly developed grid system in spherical geometry created by matching two notched latitude-longitude grids which are normal to each other. Global and local conservation is achieved with an interpolation algorithm that exactly guarantees that the fluxes on boundaries of the two grid components are identical. Several numerical experiments are shown to confirm the conservation in passive transport situations and shallow-water dynamical equations.

Original languageEnglish
Pages (from-to)979-996
Number of pages18
JournalQuarterly Journal of the Royal Meteorological Society
Issue number616
Publication statusPublished - 2006 Apr
Externally publishedYes


  • Conservation advective
  • Spherical geometry
  • Yin-Yang grid

ASJC Scopus subject areas

  • Atmospheric Science


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