GEO130 – OCEANOGRAPHY

Surface Heat Flux Animations



Definition:
Heat Flux - The rate of exchange of molecular kinetic energy (a.k.a. heat) through a surface.
Heat flux can be from the atmosphere to the surface - negative values - or
from land and ocean surfaces to the atmosphere - positive values -.


Units for Surface Heat Flux are Watts/m-2

Sensible Heat is heat energy that can be "sensed".
It is the kinetic energy of the molecules as we discussed when covering kinetic theory.

Latent Heat is the energy used to do the work of evaporation. It is the additional kinetic energy gained/lost when a water molecule evaporates/condenses.
It is carried to the surface (condensation) or away from the surface (evaporation) with water vapor molecules.




Global Sensible Heat Flux Jan 2008 - Dec 2010
Positive From the Surface to the Atmosphere




Global Latent Heat Flux Jan 2008 - Dec 2010
Positive From the Surface to the Atmosphere




Global Latent Heat Flux December 2008 W/m2
(Southern Summer/Northern Winter)








Legend
Units W/m2
Positive Values
From the Surface
To the Atmosphere


Top Bar = Sensible
Bottom Bar = Latent


Global Latent Heat Flux July 2009 W/m2
(Southern Winter/Northern Summer)


Global Sensible Flux December 2008 W/m2
(Southern Summer/Northern Winter)








Legend
Units W/m2
Positive Values
From the Surface
To the Atmosphere


Top Bar = Sensible
Bottom Bar = Latent


Global Sensible Flux July 2009 W/m2
(Southern Winter/Northern Summer)