Almost sharp fronts for the surface quasi-geostrophic equation

Diego Córdoba, Charles Fefferman, José Luis Rodrigo

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24 Scopus citations


We investigate the evolution of "almost sharp" fronts for the surface quasi-geostrophic equation. This equation was originally introduced in the geophysical context to investigate the formation and evolution of fronts, i.e., discontinuities between masses of hot and cold air. These almost sharp fronts are weak solutions of quasi-geostrophic with large gradient. We relate their evolution to the evolution of sharp fronts.

Original languageEnglish (US)
Pages (from-to)2687-2691
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number9
StatePublished - Mar 2 2004

All Science Journal Classification (ASJC) codes

  • General


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