Geostrophic wind at different latitudes
Hej SMHI,
"With equal horizontal pressure gradient: geostrophic wind speed will be higher at lower latitude". Why?
Something to do with conservation of angular momentum but can you explain it?
"With equal horizontal pressure gradient: geostrophic wind speed will be higher at lower latitude". Why?
Something to do with conservation of angular momentum but can you explain it?
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Yes, you are on the right track. In the formula of geostrophic wind there is 1/f, where f is the coriolisparameter.
f= 2*omega*sin(latitude)
omega is the earths rotation.
When going south sin(latitude) is increasing and 1/f is decreasing and therefor also the geostrophic wind is decreasing.
Best regards
Lennart Wern