Hi Roy,
This looks sensible to me.
Philip
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Dr Philip Cameron-Smith, [email protected], Lawrence Livermore National Lab.
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From: CF-metadata [mailto:[email protected]] On Behalf Of Lowry,
Roy K.
Sent: Thursday, January 10, 2013 1:01 AM
To: [email protected]
Cc: [email protected]
Subject: [CF-metadata] sea_water_pressure
Dear All,
It has been pointed out to me that the SeaDataNet NetCDF specification uses
'sea_water_pressure' as the Standard Name in cases where pressure is used as
the z co-ordinate in observational data such as CTD profiles. The definition
for this Standard Name is:
the pressure that exists in the medium of sea water. It includes the pressure
due to overlying sea water, sea ice, air and any other medium that may be
present.
Consequently the expected pressure z co-ordinate labelled 'sea_water_pressure'
would be approximately 10 decibars at the sea surface. However, it is almost
universal practice to either calibrate or correct the pressure z co-ordinate so
that it reads zero at the sea surface. Consequently, I think we need a new
Standard Name:
sea_water_pressure_due_to_sea_water defined as
the pressure that exists in the medium of sea water due to overlying sea water.
Excludes the pressure due to sea ice, air and any other medium that may be
present.
Apologies to anybody else who like me had used 'sea_water_pressure' for their Z
co-ordinate without looking at the definition.
Cheers, Roy.
Please note that I now work part-time from Tuesday to Thursday. E-mail
response on other days is possible but not guaranteed!
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