Re: [python-users] Trying to use python-awips for model soundings

  • To: Michael James <mjames@xxxxxxxx>
  • Subject: Re: [python-users] Trying to use python-awips for model soundings
  • From: Bryan Guarente <guarente@xxxxxxxx>
  • Date: Wed, 13 Jul 2016 16:33:29 -0600
Does this mean that we can only plot for RAOB locations or can we plot for
any lat lon point available in the dataset?

I thought we could just replace that "geom = POINT (... , ...)" line with
an appropriate lat lon location and then "fool" it into getting the data
from that location instead of OAX.

I don't believe that we could use the specific humidity for the vapor
pressure.  The linked sounding (AWIPS 2 Cave) here is the same as you had
in the example posted (KOAX, July 13, 12Z).

It didn't look to me like these were the same.

Thanks for the quick response.


On Wed, Jul 13, 2016 at 2:13 PM, Michael James <mjames@xxxxxxxx> wrote:

> and online now
> Michael James
> Unidata Program Center
> Boulder, CO
> On Wed, Jul 13, 2016 at 2:47 PM, Ryan May <rmay@xxxxxxxx> wrote:
>> On Tue, Jul 12, 2016 at 11:21 AM, Bryan Guarente <guarente@xxxxxxxx>
>>  wrote:
>>> I have worked through my own version of your sounding and advanced
>>> sounding examples using python-awips and metpy.  However, I never saw any
>>> ability to make a model sounding.  Is there an example of making a model
>>> sounding with MetPy and python-awips?  Initially, I think this would be
>>> simple, but then I realized we would be using a completely different
>>> filetype and thus would likely have to use a different library to decode
>>> it.
>>> If you have any examples, can you post them to github?
>> Bryan,
>> Michael James (cc'ed, maintainer of python-awips) came up with the
>> attached and had this to add:
>> "I believe this is correct, assuming specific humidity is equal to vapor
>> pressure e (modelsounding doesn't return dewpoint).   Also note that the
>> available locations are limited to areas around OAX due to localization.
>> I'll have to update this to allow global access in the next release."
>> I'm currently working on a gallery of notebooks that work across all of
>> the meteorology tools, and I'll add these when that's ready (I don't want
>> MetPy's own examples pulling from external, online data sources.)
>> Ryan
>> --
>> Ryan May, Ph.D.
>> Software Engineer
>> UCAR/Unidata
>> Boulder, CO

Bryan Guarente
Instructional Designer/Meteorologist
The COMET Program
Boulder, CO
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