Concept
ertel_potential_vorticity
URI | http://vocab.nerc.ac.uk/collection/P07/current/CFSN0620/ | ||
---|---|---|---|
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 | 2020-06-22T17:33:46 | ||
Identifier | SDN:P07::CFSN0620 | ||
Note | accepted | ||
Has Current Version | 2 | ||
Version | 1 | ||
version | 2 | ||
Same As | MMI | http://mmisw.org/ont/cf/parameter/ertel_potential_vorticity | Mapping: 261605 |
CF | http://vocab.nerc.ac.uk/standard_name/ertel_potential_vorticity/ | Mapping: 350498 | |
Broader | P04:G254 |
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vorticity | Mapping: 36817 |
P64:G254 |
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vorticity | Mapping: 503566 | |
Related | P04:G985 |
EARTH SCIENCE > Oceans > Ocean Winds > Vorticity | Mapping: 37022 |
P64:G985 |
EARTH SCIENCE > Oceans > Ocean Winds > Vorticity | Mapping: 503789 | |
P06:KMSS |
Kelvin square metres per kilogram per second | Mapping: 162341 |
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