[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[UDUNITS #ODA-678107]: Seeking list of recognized units

Hello Catherine,

> I am trying to bring some of my colleague’s data products into compliance 
> with the CF standard, and am getting a lot of errors such as ‘Invalid units: 
> not recognized by UDUNITS”.  So, I am wondering where I can find the list of 
> units that are recognized so we can use them instead.

Does this help: 
<https://www.unidata.ucar.edu/software/udunits/udunits-current/doc/udunits/udunits2.html#Database>

> I did see an older thread from 2011 
> (https://www.unidata.ucar.edu/support/help/MailArchives/udunits/msg00821.html)
>  that provided a partial list, but I didn’t see an equivalent to “meters per 
> second square” or “DN”.  These are the two main units that are kicking up 
> errors, as well as “unitless”.

What's a "DN"?

The UDUNITS-2 parser can't yet handle "second squared" or things like "square 
meter".

> Which variants of “meters per second square” and “DN” should I be using?

The UDUNITS-2 parser should handle "meters per second per second".

> And, what is the proper way of dealing with a unitless quantity?

Ether the empty string ("") or the string "1".

> Should I delete the “units” attribute from that variable, or is there a 
> specific string to use for that situation?

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: ODA-678107
Department: Support UDUNITS
Priority: High
Status: Closed
===================
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata 
inquiry tracking system and then made publicly available through the web.  If 
you do not want to have your interactions made available in this way, you must 
let us know in each email you send to us.