Re: [ldm-users] [EXTERNAL] GeoColor data

• To: Stonie Cooper <cooper@xxxxxxxx>, LDM <ldm-users@xxxxxxxxxxxxxxxx>
• Subject: Re: [ldm-users] [EXTERNAL] GeoColor data
• From: "Herbster, Christopher G." <herbstec@xxxxxxxx>
• Date: Tue, 25 Mar 2025 01:28:52 +0000
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• Msip_labels:

Just to add to the references, this can be done in a variety of ways.

See http://nwafiles.nwas.org/jom/articles/2023/2023-JOM4/2023-JOM4.pdf

We do this with McIDAS at ERAU, at least for now.

Images are at: https://wx.erau.edu/erau_sat/
If you get a timeout error, just refresh. The images will load. That's a 
feature we are working to remove, but it is still there for now. (There are 
multiple overlay directories to read that slows down the response.)

Thanks,
CH


Christopher Herbster, Ph.D.
Associate Professor of Meteorology
Applied Aviation Science
Daytona Beach Campus
College of Aviation Rm. 338

1 Aerospace Boulevard
Daytona Beach, FL 32114
386.226.6444
christopher.herbster@xxxxxxxx<mailto:christopher.herbster@xxxxxxxx>

Embry-Riddle Aeronautical University
Florida | Arizona | Worldwide

[cid:cf6904a0-63e4-4481-a34a-945ec4546167]

386.226.6446 Weather Center
http://wx.erau.edu/

Schedule at:  http://wx.erau.edu/faculty/herbster/Schedules/

________________________________
From: ldm-users <ldm-users-bounces@xxxxxxxxxxxxxxxx> on behalf of Stonie Cooper 
<cooper@xxxxxxxx>
Sent: Monday, March 24, 2025 6:03 PM
To: LDM <ldm-users@xxxxxxxxxxxxxxxx>
Subject: [EXTERNAL] [ldm-users] GeoColor data

External Sender: Use caution with links, attachments, or when sharing 
information.

The GeoColor data formerly on the IDD has been discontinued for IDD delivery.  
The intense processing and research that went into the product was carried out 
external to Unidata at CIRA/CSU, and was delivered for IDD inclusion for the 
use of NWS offices.  That processing can now occur at the individual NWS 
offices, and resources to continue the generation of GeoColor are no longer 
available.

The ability to create GeoColor images is provided by the delivery of the 
constituent channels of GOES data on the IDD and via SBN ground stations.  For 
instance, this peer reviewed article provides the algorithm for creating a 
"true" color image in the absence of a green channel:

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018EA000379

Another source is from the authors of GeoColor:

https://journals.ametsoc.org/downloadpdf/view/journals/atot/37/3/JTECH-D-19-0134.1.pdf

These publications are provided to enable receivers of IDD data, or SBN data 
from a ground station, to create their own version of a "GeoColor" product.
-
Stonie Cooper, PhD
Software Engineer III
NSF Unidata
cooper@xxxxxxxx<mailto:cooper@xxxxxxxx>

• References:
  • [ldm-users] GeoColor data
    • From: Stonie Cooper