Re: [gembud] [EXTERNAL] Re: GFS v16 pressure levels < 1 mb and GEMPAK

• To: Steve Decker <sgdecker@xxxxxxxxxxxxxxxxxx>, "gembud@xxxxxxxxxxxxxxxx" <gembud@xxxxxxxxxxxxxxxx>
• Subject: Re: [gembud] [EXTERNAL] Re: GFS v16 pressure levels < 1 mb and GEMPAK
• From: "Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES CORPORATION]" <robert.r.mullenax@xxxxxxxx>
• Date: Mon, 22 Mar 2021 21:37:09 +0000
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Ok thanks very much, Steve.

________________________________
On: 22 March 2021 16:14, "Steve Decker" 
<sgdecker@xxxxxxxxxxxxxxxxxx<mailto:sgdecker@xxxxxxxxxxxxxxxxxx>> wrote:
Hmm, looking at the code (e.g., 
https://github.com/Unidata/gempak/blob/master/gempak/source/gridlib/gd/gdhtoi.f<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FUnidata%2Fgempak%2Fblob%2Fmaster%2Fgempak%2Fsource%2Fgridlib%2Fgd%2Fgdhtoi.f&data=04%7C01%7Crobert.r.mullenax%40nasa.gov%7C27b996fba7534d004e0b08d8ed776eb8%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637520444509462160%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=wRqjPQ02ZGDl7rnRtd9yBPPlO8aKaLVlIKzXhwURzcY%3D&reserved=0>
 ) it appears the vertical levels may fundamentally be integers at the file 
format level.  Maybe NCEP has a fix (I have no idea), but it doesn't look like 
it would be easy.

Steve

On 3/22/21 4:54 PM, Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES 
CORPORATION] via gembud wrote:
Hello GEMPAK users,

We are wanting to use the 0.7 mb height, temp, and wind from the new GFS v16. 
However, after decoding the file and doing a gdinfo, the 0.7 mb level doesn’t 
show up. I am assuming GEMPAK has an issue with a pressure level as a decimal. 
I also assume NCEP likely provided a fix for that. Has anyone using Unidata 
GEMPAK fixed this to look at data < 1 mb?

Thanks,
Robert Mullenax


Robert Mullenax
Meteorologist
CSBF/Peraton
Columbia Scientific Balloon Facility
robert.r.mullenax@xxxxxxxx<mailto:robert.r.mullenax@xxxxxxxx>
903-729-0271




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--
Steve Decker, Associate Teaching Professor
Director, Meteorology Undergraduate Program
Department of Environmental Sciences           Phone: (848) 932-5750
Rutgers University                               Fax: (732) 932-8644
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decker@xxxxxxxxxxxxxxxxxx<mailto:decker@xxxxxxxxxxxxxxxxxx>
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