Warm, Cold, and Dry Conveyor Belts
conveyor belt -
- Originates at low levels in the
conveyor Belt -
Cold Conveyor Belt -
- originates NE of low, swirls into the low at then
ascends to upper levels
Explain why at 500 mb, when cold-air advection is
occurring, the air temperature does not drop as fast as it should.
Over the earth as a whole, would you expect the
atmosphere to be mainly barotropic or baroclinic? Explain.
Baroclinic waves seldom form in the tropics. Why?
If you only had isotherms on an upper-level chart, how
would a cut-off low appear?
Identify regions of cold-air advection and warm-air
advection today over the U.S. and Canada. By looking at representative
soundings, how do the winds at low levels change direction with height in the
region of cold-air advection and warm-air advection?
Assume that the lapse rate is 6.5 degrees Celsius per kilometer
here at LSC. If cold-air advection is occurring aloft such that
at 500 mb (6 km AGL) the rate of cooling is 0.2 degrees Celsius per hour, what
will be the resultant lapse rate 6 hours later? Has the atmosphere
stabilized or destabilized?