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[IDV #QOS-944139]: Geostrophic wind shear

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  • Subject: [IDV #QOS-944139]: Geostrophic wind shear
  • Date: Tue, 22 Jul 2008 13:14:32 -0600
> OK, so no station pressure, apparently. Maybe WXP calculates backwards
> from altimeter setting and station elevation instead of reading station
> pressure directly from the data file. If so, I presume that someone would
> have to write a formula to do the same in the IDV.

It's all based on the decoder.  In the ADDE datasets, the value
that gets stored is whatever is reported in the METAR.  In your
file, some report just altimeter and some report both.  So,
if both are reported, both should be available for plotting. 
We don't calculate one from the other.

> I've attached a sample METAR data file of the sort that WXP will read and
> from which it plots station pressure.

I suspect then that WXP is doing a conversion if you can plot
either value at any station.

Don

Ticket Details
===================
Ticket ID: QOS-944139
Department: Support IDV
Priority: Normal
Status: Open