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Ticket Resolution Summary Owner Reporter
#32 fixed Ambiguity in text discussing auxiliary coordinate variables cf-conventions@… taylor13
Description

I find the antecdents to the various instances of "their" in the following text ambiguous.

"The axis attribute is not allowed for auxiliary coordinate variables. Auxiliary coordinate variables which lie on the horizontal surface can be identified as such by their dimensions being horizontal, which can in turn be inferred from their having an axis attribute of X or Y , or from their units in the case of latitude and longitude (see Chapter 4, Coordinate Types )."

I propose modifying the text slightly to read:

"The axis attribute is not allowed for auxiliary coordinate variables. Auxiliary coordinate variables which lie on the horizontal surface can be identified as such by their dimensions being horizontal. Horizontal dimensions are those whose coordinate variables have an axis attribute of X or Y, or a units attribute indicating latitude and longitude (see Chapter 4, Coordinate Types)."

#34 fixed Add new grid mappings cf-conventions@… edavis
Description

1. Title

Add new grid mappings to the existing list.

2. Moderator

John Caron

3. Requirement

A number of grid mappings are being used that are not listed in CF. Make additions to the existing list.

This is a follow-up proposal to the proposal in CF Trac ticket #18.

4. Initial Statement of Technical Proposal

Add the following projections:

  • Lambert Cylindrical Equal Area (EPSG 9834 for spherical earth, EPSG 9835)
  • Mercator (EPSG 9804 for one standard parallel, EPSG 9805 for two standard parallels)
  • Orthographic (EPSG 9840)

5. Benefits

Allow existing data using non-CF defined grid mappings to be CF compliant.

6. Status Quo

Data that is otherwise CF compliant using grid mappings that are not supported by CF.

7. Detailed Proposal

CF Wiki page: GridMapNames - currently at version 11

#35 fixed delete "associated" in CF standard, chapter 5, introduction, paragraph 3 cf-conventions@… jonathan
Description

This was raised by John Caron, and Brian Eaton and Jonathan Gregory agree.

Change

We recommend that the name of a multidimensional coordinate variable should not match the name of any of its dimensions because that precludes supplying an associated coordinate variable for the dimension.

to

We recommend that the name of a multidimensional coordinate variable should

not match the name of any of its dimensions because that precludes supplying a coordinate variable for the dimension.

i.e. delete "associated", which has a technical meaning in the CF standard that is not meant here.

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