Dear Jonathan and Alison,
Maybe such information (sensor, frequency or wavelenght, the way data is
measured) might be supported by other (discovery) metadata outside the
netCDF header. For example that is the way project like Seadatnet
(
http://www.seadatanet.org/) choosed to proceed, by integrating some
vocabulary to declare sensors in general, including remote sensing (Roy
Lowry from BODC worked on it), in a separate table. According to me, we
should take care to separate as possible the sensor type from the standard
name, because the standard name might be not able to identify all, but only
the physical quantity. In our case I agree the quantity is linked to the
way it is measured, besides this is quite the same with satellite altimetry..
In my opinion, standard names should stay like
"sea_surface_temperature_in_subskin_layer", and then why not completed
using the "comments" attribute with information that says that it was
acquired from microwave radiometer operating in the 6-11 GHz frequency
band. I believe this might be enough to distinguish this quantity from
another, and anyway the information "radiometer" and "6-11 GHz" should find
above all an important place in the discovery metadata outside the file,
shouldn't they?
Kind regards
Olivier
Le 12:59 19/07/2007,Pamment, JA (Alison) ?crit:
>Dear Jonathan,
>
> >
> > > On the other hand, if these two particular quantities are commonly
>used
> > > remote sensing products whose definition never varies perhaps they
> > > should
> > > have distinct standard names. I think the deciding factor should be
> > > whether it is likely that other, similar quantities are likely to be
> > > needed in the future with slightly different depth/frequency
> > > characteristics.
> >
> > I agree with that, but I think that if their defining characteristic
>is
> > *how*
> > they are measured i.e. it is an observational quantity, whose physical
> > interpretation is that it is a (sub)skin temperature, then perhaps the
> > name
> > should indicate how they are measured as being the principal fact
>about
> > these
> > quantities.
> >
>
>Are you then suggesting that we should have a name of the form:
>sea_water_temperature_measured_by_radiometer
>with frequency and depth given as coordinate variables? Or have I
>misunderstood?
>
>Best wishes,
>Alison
>
>------
>Alison Pamment Tel: +44 1235 778065
>NCAS/British Atmospheric Data Centre Fax: +44 1235 446314
>Rutherford Appleton Laboratory Email: J.A.Pamment at rl.ac.uk
>Chilton, Didcot, OX11 0QX, U.K.
>
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Received on Thu Jul 19 2007 - 08:25:03 BST
