Team Bee Questions

Team Bee Questions:

1. What is typical variance of barometric pressure globally? Locally? Is there a difference?

Andreas: Yes, big difference, a pressure does not constitute a force … a pressure difference over some distance does (pressure gradient = p-grad), same pressure difference, smaller spatial scale, much larger p-grad

2. How quickly does barometric pressure change once landfall has been made? Why?

Andreas: What causes temporal changes of p-grad?

3. What minimum value of pressure gradient is considered dangerous?

Dangereous for what?

4. What are typical wind speeds associated with various pressure gradients?

Andreas: Excellent question, p-grad as a force must be balanced by either another force or an acceleration, the answer to this question is one of the basic premises of large scale dynamics in both atmosphere and ocean (geostrophy)

5. Can storm path be predicted based on pressure gradient? Is other information needed?

Andreas: Almost certainly not, even though it is probably one of many contributing factors. Yes on the second question here.

6. In the event of short-term terrestrial interference (i.e. storm passes over an island), how reliable is barometric pressure in determining how much the storm strength recovers?

What is the Cf over water, over marsh, and over a typical storm track passing through SC/NC/MD (whatever land type that is) on the way to southern DE?
How quickly does barometric pressure change once landfall has been made? Why?
What minimum value of pressure gradient is considered dangerous, and what typical wind speeds are associated with various pressure gradents?
Can storm path be predicted based on pressure gradient? Is other information needed?
In the event of short-term terrestrial interference (i.e. storm passes over an island), how reliable is barometric pressure in determining how much the storm strength recovers?

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