[cf-satellite] implication of allowing longitude coordinate variable using scale_factor/add_offset

• To: <cf-metadata@xxxxxxxxxxxx>, <cf-satellite@xxxxxxxxxxxxxxxx>
• Subject: [cf-satellite] implication of allowing longitude coordinate variable using scale_factor/add_offset
• From: "rhorne@xxxxxxxxxxxxxxxxx" <rhorne@xxxxxxxxxxxxxxxxx>
• Date: Wed, 20 Mar 2013 08:47:53 -0400

Folks:

Last year we (GOES-R Ground System) proposed a change that would allow 
coordinate variables to use scale_factor and add_offset  (see trac item #86 
with title "Allow coordinate variables to be scaled integers").

We will be producing one type of product on a lat/lon grid and would like to 
used scale_factor and add_offset with the coordinate variables.

One of these products spans the 180 degrees_east longitude (i.e. -180 
degrees_east longitude) line.  The implication being that the software 
resolving the scale factor and additive offset needs to be cognizant of the 
longitude coordinate variable "units".

Is this an issue ?

very respectfully,

randy

• Follow-Ups:
  • Re: [cf-satellite] implication of allowing longitude coordinate variable using scale_factor/add_offset
    • From: John Caron