Re: [CF-metadata] Standard name proposal related to methane, water vapor, carbon monoxide, semi-heavy water, and nitrogen dioxide.

2018-04-19 Thread Alison Pamment - UKRI STFC
Dear Maarten and Martin, Many thanks for these proposals and apologies for not having responded sooner. There seems to be full agreement that four of the names are a straight forward addition to the standard name table. 1. atmosphere_mole_content_of_methane (mol m-2) ' "Content" indicates a

Re: [CF-metadata] Fw: Standard Names to support Trac ticket 99

2018-04-19 Thread Lowry, Roy K.
Hi John, To my thinking your arguments add support for 'biological_taxon_lsid' over 'biological_taxon_identifier' defined as LSID, which Jonathan prefers and I am starting to feel better about. LSIDs backed by the WoRMS and ITIS taxonomies cover the biological oceanography use cases known to

Re: [CF-metadata] Fix Geostationary projection, including proposal for two new standard names

2018-04-19 Thread Jim Biard
Daniel, My two thoughts were independent. I agree that parametric coordinates are more abstract, and thus possibly more confusing, than linear coordinates. But, as Randy pointed out in his reply, the relationship between the angles and longitude and latitude are quite complex. The

Re: [CF-metadata] Four standard names for the AerChemMIP data request

2018-04-19 Thread Jonathan Gregory
Dear Martin and Michaela Thanks for your comments. If a non-zero threshold is sometimes used, I think it's a reasonable future-proofing extension that we might allow it here, although it's not yet been requested. I don't feel strongly either way. We could omit that complexity at the moment, but

[CF-metadata] Fix Geostationary projection, including proposal for two new standard names

2018-04-19 Thread Jonathan Gregory
Dear Ethan Thanks for taking this up. I think this approach is sensible. > Perhaps we should include information on when the deprecated feature was in > effect: > > The initial definition for this projection was agreed on in May 2012 though > it was not in the CF document until 1.7 was released

Re: [CF-metadata] Fix Geostationary projection, including proposal for two new standard names

2018-04-19 Thread Randy Horne
Folks: RE: “ Definition: "x" indicates a vector component along the grid x-axis, when this is not true longitude, positive with increasing x. Angular projection coordinates are angular distances in the x- and y-directions on a plane onto which the surface of the Earth has been projected

Re: [CF-metadata] Fix Geostationary projection, including proposal for two new standard names

2018-04-19 Thread Daniel Lee
Hi Jim, I for one find this more confusing than Ethan's definition, but maybe it's because I'm too far gone in my discipline to see the scope for misunderstanding. That being said, if we're being that general my feeling says to me that we may risk converging on a standard which isn't really

Re: [CF-metadata] Fix Geostationary projection, including proposal for two new standard names

2018-04-19 Thread Jim Biard
Hi. Here's a couple of thoughts. The definition that Ethan has proposed fails to note that the angles are with respect to a normal to the projection surface at a point along the normal. I guess the phrase "angular distance" implies this, but my first read had me feeling confused about what

Re: [CF-metadata] Fix Geostationary projection, including proposal for two new standard names

2018-04-19 Thread Carlomusto, Mike
Ethan, Thanks for your quick action on this. Analysis of the GOES-R product definitions is beginning for the change to the two newly proposed standard names. As written, the new standard name definitions are fine with us. Michael Carlomusto GOES-R Ground System Harris Corporation, Melbourne, FL

Re: [CF-metadata] Fix Geostationary projection, including proposal for two new standard names

2018-04-19 Thread Daniel Lee
Hi Ethan, At first blush this looks pretty good. If we can agree on this in a short-ish time frame, it might be possible for EUMETSAT to publish data exclusively using these standard names - the planned launch date for MTG I1 is late 2021. This sounds like it's very far away, but in the space

Re: [CF-metadata] Four standard names for the AerChemMIP data request

2018-04-19 Thread Martin Juckes - UKRI STFC
Dear Jonathan, those are good points. I've copied Michaela into the discussion as she knows more about the intended use of this variable. The generic quantity that AerChemMIP is interested in, Phytotoxic ozone dose, can be used with a non-zero threshold -- so there may be a requirement for