[CF-metadata] Salinity units

From: Jonathan Gregory <j.m.gregory>
Date: Thu, 18 Jun 2009 08:09:38 +0100

Dear Karl

> Let me know if use of dB without reference is stupid.

dB could be used without a reference level if the quantity before the
logarithm was taken was already dimensionless. It doesn't make sense to
take the log of something which has a unit.

A reference level might not be stated, I suppose, if it was assumed that the
quantity before logarithm was in a certain unit. That means the reference
level is implicitly one of those units.

Best wishes

Jonathan
Received on Thu Jun 18 2009 - 01:09:38 BST