Dear John,
Excellent. Thanks for your consideration. I'm cc'ing the "cf-metadata"
address so that our dialogue gets posted to the archive.
-Jonathan
On 5/13/2013 5:25 PM, John Graybeal wrote:
Great by me, thanks!
On May 13, 2013, at 13:53, Jonathan Wrotny <[email protected]
<mailto:[email protected]>> wrote:
Dear John,
I am taking over this thread from Randy Horne (with his permission).
Thanks for your reply regarding this new proposed standard name. I
concur that I should not have replaced the 'X' with the phrase from
the standard name, and also that the sentence defining the surface is
not relevant since the word 'surface' is not directly part of the
standard name.
Also, I will reword the sentence attempting to discuss the vertical
column. The motivation for this sentence is to highlight that the
vertical column may not extend from the surface to the TOA (and does
not in the case of the GOES-R product that is motivating this
standard name proposal), but instead may extend over some specified
layer (for which the coordinate variable "air_pressure" will be
used). I agree that the wording of this sentence may be a little
garbled. Does the following definition improve upon the original?
"lwe" means liquid water equivalent. The construction
lwe_thickness_of_X means the vertical extent of a layer of liquid
water if all the X in a vertical column was condensed. A coordinate
variable of air_pressure can be specified to define the levels of the
vertical column.
Sincerely,
Jonathan
*From*: "John Graybeal" <[email protected]>
*Sent*: Friday, May 10, 2013 2:07 PM
*To*: [email protected]
*Subject*: Re: [CF-metadata] new standard_name:
lwe_thickness_of_water_vapor
Two definition observations, I think both related to the 'lwe_'
contribution.
"The construction lwe_thickness_of_X means the vertical extent of a
layer of liquid water if all the atmospheric water vapor." Where did
the X get replaced by something in that phrase? Perhaps it should
read "if all the X"?
The definition goes on about something not particularly relevant for
this standard name, the vertical column, and more confusingly "the
surface referes to the lower boundary of the atmosphere". In this
particular case, I presume the vertical column verbiage is associated
with the 'lwe_' part, but sometimes it doesn't fit/should be
replaced. For example: "In this case the vertical column is
unspecified, and so extends from the bottom to top of the
atmosphere." could replace everything after "The vertical column."
John
On May 10, 2013, at 10:56, "[email protected]
<mailto:[email protected]>" <[email protected]
<mailto:[email protected]>> wrote:
Folks:
Would like to propose the following:
standard_name:
lwe_thickness_of_water_vapor
definition:
"lwe" means liquid water equivalent. The construction
lwe_thickness_of_X means the vertical extent of a layer of liquid
water if all the atmospheric water vapor in a vertical column was
condensed. The vertical column may extend from the surface to the
top of the atmosphere, or between levels of the atmosphere. The
surface refers to the lower boundary of the atmosphere.A coordinate
variable of air_pressure can be specified to specify levels of the
atmosphere.
units:
m
very respectfully,
randy
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---------------
John Graybeal
Marine Metadata Interoperability Project: http://marinemetadata.org
<http://marinemetadata.org/>
[email protected] <mailto:[email protected]>
---------------
John Graybeal
Marine Metadata Interoperability Project: http://marinemetadata.org
[email protected] <mailto:[email protected]>
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