Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-08 Thread Jim Biard
gt;> > To: Maarten Sneep mailto:maarten.sn...@knmi.nl>> > CC: CF Metadata Mail List mailto:cf-metadata@cgd.ucar.edu>> > Subject: Re: [CF-metadata] New UDUnits units for information: "byte" and > "octet" > > Maarte

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-08 Thread Steve Emmerson
gt; > Jonathan > > > - Forwarded message from Steve Emmerson - > > > Date: Wed, 7 Jan 2015 10:37:58 -0700 > > From: Steve Emmerson > > To: Maarten Sneep > > CC: CF Metadata Mail List > > Subject: Re: [CF-metadata] New UDUnits units for infor

[CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-08 Thread Jonathan Gregory
sage from Steve Emmerson - > Date: Wed, 7 Jan 2015 10:37:58 -0700 > From: Steve Emmerson > To: Maarten Sneep > CC: CF Metadata Mail List > Subject: Re: [CF-metadata] New UDUnits units for information: "byte" and > "octet" > > Maarten, >

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Steve Emmerson
Maarten, I think I understand. You're fortunate in being "grandfathered-in", so to speak. I just don't want to go down the road of adding support for all kinds of different entities. I'm a bit sensitive in that regard. :-) Regards, Steve Emmerson On Wed, Jan 7, 2015 at 10:31 AM, Maarten Sneep

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Maarten Sneep
On 07-01-15 17:10, Steve Emmerson wrote: Jonathan, I think you meant to say that if a physical quantity has a different dimensionality (not unit), then we have to give it a different name. In my opinion, what's needed in this case is a package that understands co-ordinate transformations -- in

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Steve Emmerson
Jonathan, I think you meant to say that if a physical quantity has a different dimensionality (not unit), then we have to give it a different name. In my opinion, what's needed in this case is a package that understands co-ordinate transformations -- in order to convert, for example, values in un

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Steve Emmerson
Maarten, According to section 8.6.2 of this NIST webpage , you should try to convince your colleagues to use the label "NO2 Concentration", for which the SI unit is, indeed, "mol/m3". With apologies for being blunt, I'm loath to force the UDUNITS pac

[CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Jonathan Gregory
Dear Maarten > >A mole is also a udunit, so mol m-3 and m-3 are different units, and > >quantities > >with those canonical units also have to have different standard_names. The > >standard_name indicates whether the quantity refers to number concentration > >or > >molar concentration. > > 1e15

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Maarten Sneep
On 07-01-15 16:15, Jonathan Gregory wrote: Dear Maarten A mole is also a udunit, so mol m-3 and m-3 are different units, and quantities with those canonical units also have to have different standard_names. The standard_name indicates whether the quantity refers to number concentration or molar

[CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Jonathan Gregory
27;ve understood you correctly. Cheers Jonathan - Forwarded message from Maarten Sneep - > Date: Tue, 6 Jan 2015 18:10:22 +0100 > From: Maarten Sneep > To: cf-metadata@cgd.ucar.edu > Subject: Re: [CF-metadata] New UDUnits units for information: "byte" and > &qu

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-06 Thread Maarten Sneep
Sorry for the delayed reply, On 28-11-14 11:29, Jonathan Gregory wrote: Dear all I agree with Steve and Roy about this: Now UDUnits has "molecule" and "byte". They (Steve) are receptive to well-justified proposals, so do not feel daunted in transmitting to them the suggestion for "photon".

[CF-metadata] New UDUnits units for information: "byte" and "octet"

2014-11-28 Thread Jonathan Gregory
Dear all I agree with Steve and Roy about this: > > Now UDUnits has "molecule" and "byte". They (Steve) > > are receptive to well-justified proposals, so do not feel daunted > > in transmitting to them the suggestion for "photon". > > Adding such units is the wrong way to go about solving the pr

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2014-11-27 Thread Lowry, Roy K.
From: Steve Emmerson [emmer...@ucar.edu] Sent: 27 November 2014 17:58 To: Charlie Zender Cc: CF Metadata Mail List Subject: Re: [CF-metadata] New UDUnits units for information: "byte" and "octet" Charlie & CF-Metadaters, On Wed, Nov 26, 2014 at 8:27 PM, Charli

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2014-11-27 Thread Steve Emmerson
Charlie & CF-Metadaters, On Wed, Nov 26, 2014 at 8:27 PM, Charlie Zender wrote: > Now UDUnits has "molecule" and "byte". They (Steve) > are receptive to well-justified proposals, so do not feel daunted > in transmitting to them the suggestion for "photon". Please don't request such "units". I

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2014-11-27 Thread Maarten Sneep
On 27-11-14 12:14, Armin Rauthe-Schöch wrote: --> I'm not very familiar with UDUNITS but is there also a "kilobyte" which is 1024 bytes, the/another common understanding of "kilo" in the IT world ? Which then also would mean that "mega" is not 1e6 but rather 1024x1024, etc ? Probably not in UD

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2014-11-27 Thread Armin Rauthe-Schöch
Dear Charlie, On 27.11.2014 03:27, Charlie Zender wrote: > > After some back and forth, Steve Emmerson of Unidata kindly added > added support for "octet" and "byte" in UDUnits 2.2.16, released > in June 2014 (same release that introduced "molecule"). > Both "byte" and "octet" are convertible with

[CF-metadata] New UDUnits units for information: "byte" and "octet"

2014-11-26 Thread Charlie Zender
This may interest those who produce/analyze data and metadata concerning information itself. It was prompted by Maarten Sneep's suggestion that "photon" be added to UDUnits (like "molecule" was). I support that suggestion. A few months ago Jeff Lee and I worked to improve CF-compliance of Level 1