Carl-Gustaf Rossby - Florida

Question

In accretion disks, an instability partially named after this scientist can cause a non-axisymmetric pressure bump to develop. For 10 points each:

[10m] What Swedish-American meteorologist names waves that occur in rotating fluids and a dimensionless number relating the inertial and Coriolis forces?

ANSWER: Carl-Gustaf Rossby [or Carl-Gustaf Arvid Rossby; accept Rossby waves or Rossby wave instability]

[10e] The pressure bump caused by the Rossby wave instability consists of these features. Rossby waves perturb the Earth’s “polar” one of these regions of circular fluid flow.

ANSWER: vortices [or vortex; accept polar vortex]

[10h] On Earth, Rossby waves always have a westward value of this quantity regardless of their direction of propagation. This quantity equals angular velocity divided by wavenumber.

ANSWER: phase velocity [prompt on velocity]

<Editors, Physics>

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Northern California	Main	Y	2	10.00	100%	0%	0%
Southern California	Main	Y	1	20.00	100%	100%	0%
Eastern Canada	Main	Y	1	0.00	0%	0%	0%
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Lower Midwest	Main	Y	1	0.00	0%	0%	0%
Upper Midwest	Main	Y	5	6.00	20%	20%	20%
North	Main	Y	2	0.00	0%	0%	0%
Northeast	Main	Y	2	10.00	50%	50%	0%
Northwest	Main	Y	1	20.00	100%	100%	0%
South Central	Main	Y	2	5.00	50%	0%	0%
Southeast	Main	Y	2	20.00	100%	50%	50%
UK	Main	Y	2	10.00	0%	50%	50%

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