Editing Primitive equations (section)

== Definitions ==

*'''<math>u</math>''' is the [[zonal and meridional|zonal]] velocity (velocity in the east–west direction tangent to the sphere)
*'''<math>v</math>''' is the meridional velocity (velocity in the north–south direction tangent to the sphere)
*'''<math>\omega</math>''' is the vertical velocity in isobaric coordinates
*'''<math>T</math>''' is the [[temperature]]
*'''<math>\Phi</math>''' is the [[geopotential]]
*'''<math>f</math>''' is the term corresponding to the [[Coriolis force]], and is equal to <math>2 \Omega \sin(\phi)</math>, where <math>\Omega</math> is the angular rotation rate of the Earth (<math>2 \pi/24</math> radians per sidereal hour), and <math>\phi</math> is the latitude
*'''<math>R</math>''' is the [[gas constant]]
*'''<math>p</math>''' is the [[pressure]]
*'''<math>\rho</math>''' is the [[density]]
*'''<math>c_p</math>''' is the [[specific heat]] on a constant pressure surface
*'''<math>J</math>''' is the [[heat]] flow per unit time per unit mass
*'''<math>W</math>''' is the precipitable water
*'''<math>\Pi</math>''' is the [[Exner function]]
*'''<math>\theta</math>''' is the [[potential temperature]]
*<math>\eta</math> is the [[Absolute vorticity]]