What is geostrophic balance?
(a) The exact balance of incoming SW and outgoing LW radiation at the top of
the atmosphere.
(b) The exact balance of vertical pressure gradient and gravity in the atmosphere.
(c) The exact balance of the Coriolis force, horizontal pressure gradient force and
friction.
(d) The exact balance of the Coriolis force and the horizontal pressure
gradient force.
(a) The exact balance of incoming SW and outgoing LW radiation at the top of
the atmosphere.
(b) The exact balance of vertical pressure gradient and gravity in the atmosphere.
(c) The exact balance of the Coriolis force, horizontal pressure gradient force and
friction.
(d) The exact balance of the Coriolis force and the horizontal pressure
gradient force.