Concept
ertel_potential_vorticity
| URI | http://vocab.nerc.ac.uk/collection/P07/current/CFSN0620/2/ | |
|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | |
| Alternative Labels | ||
| Definition | The Ertel potential vorticity is the scalar product of the atmospheric absolute vorticity vector and the gradient of potential temperature. It is a conserved quantity in the absence of friction and heat sources [AMS Glossary, http://glossary.ametsoc.org/wiki/Ertel_potential_vorticity]. A frequently used simplification of the general Ertel potential vorticity considers the Earth rotation vector to have only a vertical component. Then, only the vertical contribution of the scalar product is calculated. | |
| Date | None | |
| Identifier | CFSN0620 | |
| Note | accepted | |
| Is Version Of | CFSN0620 | |
| version | 2 | |
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