Heather,
In what sense do feel this doesn't qualify as an ancillary variable?
That's not the same as an auxiliary coordinate variable. It is a data
variable that provides support (for lack of a better phrase) to one or
more primary data variables. I don't think common practice about how a
variable is stored is a significant discriminator. I think CF needs a
way to indicate relationships outside of file boundaries, but that is a
separate issue.
I read Nan's comment as suggesting that we take a different approach,
that isn't yet part of CF. Instead of coming up with N standard names
for the quality data, use the standard name 'status_flag'
<http://mmisw.org/cfsn/#/status_flag> on this variable and come up with
a new attribute that could be added to CF that would encode the
particulars of how the index is calculated.
Grace and peace,
Jim
On 10/11/17 9:01 AM, Heather Brown - NOAA Affiliate wrote:
To clarify Brian is looking to use the name below.
*New Name*: radar_quality_index_from_beam_blockage_and_vpr
Per the first email
*Description*: the quality of a ground-based radar based on the
combined measure of beam blockage and the effects of a vertical
profile of reflectivity.
*Unit*: 1 (dimensionless)
This particular file doesn't have the ability to be an ancillary
variable due to being the only variable that is not a coordinate
variable. Ideally, we would have this setup to make it clearer to
users and might happen in the future. At this time this is common
practice for this variable to be in a stand-alone file
There are other "index" standard names. Do you need more information
to understand if it can be comparable across different radars/data
sources? Brian, maybe you can elaborate on the standard practice of
this index and how other radars/data sources can compare the same
information.
Hope this helps.
Heather Brown
Meteorological Archive Specialist - ERT - Federal Government Contractor
NOAA's NationalCenters for Environmental Information (NCEI)
151 Patton Ave.
Asheville, NC 28801-5001 USA
[email protected] <mailto:[email protected]>
Voice: +1 828-271-4863 <tel:%2B1%20828-271-4863>Fax: +1 828-271-4328
<tel:%2B1%20828-271-4328>
The newly formed NCEI merges the National Climatic Data Center (NCDC),
the National Geophysical Data Center (NGDC), and the National
Oceanographic Data Center (NODC).
//
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On Tue, Oct 10, 2017 at 11:19 AM, Brian Nelson - NOAA Federal
<[email protected] <mailto:[email protected]>> wrote:
radar_quality_index_from_beam_blockage_and_vpr
will work as suggested by mike dixon
On Tue, Oct 10, 2017 at 10:58 AM, Heather Brown - NOAA Affiliate
<[email protected] <mailto:[email protected]>> wrote:
I defer to Brian Nelson to answer the variable intent and
creation.
I do know this is for creating and improving a Climate Data
Record dataset.
Heather Brown
Meteorological Archive Specialist - ERT - Federal Government
Contractor
NOAA's NationalCenters for Environmental Information (NCEI)
151 Patton Ave.
<https://maps.google.com/?q=151+Patton+Ave.+Asheville,+NC+28801&entry=gmail&source=g>
Asheville, NC 28801
<https://maps.google.com/?q=151+Patton+Ave.+Asheville,+NC+28801&entry=gmail&source=g>-5001
USA
[email protected] <mailto:[email protected]>
Voice: +1 828-271-4863 <tel:%2B1%20828-271-4863>Fax: +1
828-271-4328 <tel:%2B1%20828-271-4328>
The newly formed NCEI merges the National Climatic Data Center
(NCDC), the National Geophysical Data Center (NGDC), and the
National Oceanographic Data Center (NODC).
//
/Facebook:
http://www.facebook.com/NOAANationalClimaticDataCenter
<http://www.facebook.com/NOAANationalClimaticDataCenter>
Twitter: @NOAANCDC @NOAAOceanData/
On Tue, Oct 10, 2017 at 9:39 AM, Nan Galbraith
<[email protected] <mailto:[email protected]>> wrote:
Maybe instead of ' radar_quality_index' NCEI could use a
more general
approach; an ancillary variable of radar_qc, and then a
standard attribute
that describes how the QC variable is calculated.
As far as I know there's no way, currently, to provide
such a description in
a way that would be clear to data users, but this approach
would avoid a
proliferation of quality_index standard names.
I don't know about different radar systems, but a very
similar concept could be
applied to ADCP data, perhaps by combining echo amplitude
and percent good
to get a more 'complete' QC variable. We don't routinely
do that, but it might be
useful, if we had a standard way to document the meaning
of the resulting QC
value and the way it was calculated.
Cheers - Nan
On 10/5/17 1:00 PM, Jim Biard wrote:
Hi.
There needs to be a full definition of the quantity
that is more precise than the sentence below. Keep in
mind that not every quantity needs a standard name. I
have one question in particular. Is this a quantity
that is comparable across different radars?
Grace and peace,
Jim
On 10/5/17 12:21 PM, Heather Brown - NOAA Affiliate wrote:
Folks,
Are there any opinion and/or thoughts to adding
this standard name?
Thanks,
H
Heather Brown
On Tue, Sep 5, 2017 at 4:58 PM, Brian Nelson -
NOAA Federal <[email protected]
<mailto:[email protected]>
<mailto:[email protected]
<mailto:[email protected]>>> wrote:
I would like to request a standard name for a
variable that
defines the quality of a ground based radar
based on the combined
measure of beam blockage and the effects of
vertical profile of
reflectivity.
There is no such standard name available nor
does an existing one
meet the requirements.
The name should be: radar_quality_index
Units : dimensionless (1)
Thanks
Brian
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