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Add Mean Sea Level Pressure Reduction

Open tjwixtrom opened this issue 4 years ago • 2 comments

Description Of Changes

Adds function for sea level pressure reduction from surface variables and altitude. I am marking this as a draft as I am expecting the need for some discussion regarding implementation details. The function implements the NWS standard reduction with some minor changes, most notably using a curve fit rather than look-up table. Discussion regarding the appropriate moisture variable to expect may also be desired. Some additional testing on real data is still needed, my initial testing with model output looked pretty good, I want to compare more directly with other implementations and use it on some surface station data.

Checklist

  • [x] Tests added
  • [x] Fully documented
  • [ ] Test on more real data

tjwixtrom avatar Feb 10 '21 15:02 tjwixtrom

In general, this looks pretty good. Is vapor pressure what's usually used in the NWS correction?

dopplershift avatar Mar 13 '21 01:03 dopplershift

Yes, that is my understanding. I am attaching the NWS manual since it is hard to find online. SLP reduction is in chapter 7. manual_of_barometry_1.pdf

tjwixtrom avatar Mar 15 '21 19:03 tjwixtrom