Difference between revisions of "Talk:Units"

From Earth Science Information Partners (ESIP)
Line 20: Line 20:
 
:*'''RS:''' Table 1 mass_concentration is usually stated in ug/m3 ie micrograms per cubic metre - this is conventional and used in all air quality literature (scientific and policy)
 
:*'''RS:''' Table 1 mass_concentration is usually stated in ug/m3 ie micrograms per cubic metre - this is conventional and used in all air quality literature (scientific and policy)
 
::'''CT:''' --[[User:Christiane|Christiane]] 13 June 2006 (EDT)
 
::'''CT:''' --[[User:Christiane|Christiane]] 13 June 2006 (EDT)
 
 
 
  
 
----
 
----

Revision as of 08:37, June 30, 2006

Discussion Page on Units. If needed, parctice editing in the Sandbox
  • To add to the discussion, log in to DataFed wiki
  • Begin each entry with ====Username: Subject====
  • To respond, add dots ====......Username: Subject====
  • Indent response text by adding : for each tab.
  • Sign your entry by ending with '~~~~',



UDUNITS have to be used for the standard_names according to the CF convention. This is however not always obvious for chemistry and aerosol variables, where also other units are common. This page provides a discussion on this matter. See also Unidata Supported Units || Unit Converter, UDUNITS


Agreed items of former discussions on the "Units" page can be found here.


JGregory: Don't mix units with the Compound

However, kgC and kgS aren't SI units. I think the unit has to be kg. This implies that it's the standard name which must somehow indicate that it is the mass of C or mass of S which is being referred to, rather than the mass of the compound e.g. dry_deposition_flux_of_sulfur_as_sulfate_at_surface. --JonathanGregory 16:51, 22 May 2006 (EDT)

......CTextor:

Very good idea, I will change this. --Christiane Textor (Christiane) 17:11, 2 June 2006 (EDT)

CTextor: SI units

Try to use SI units if allowed within udunits (e.g. not hours but seconds) --Christiane Textor (Christiane) 12:11, 2 June 2006 (EDT)

RanjeetSokhi(RS) / CTextor (CT): remarks on version June 12 from RS and answers from CT

  • RS: Table 1 mass_concentration is usually stated in ug/m3 ie micrograms per cubic metre - this is conventional and used in all air quality literature (scientific and policy)
CT: --Christiane Textor (Christiane) 13 June 2006 (EDT)