Add deprecations of versions before 1.9

cf-convention · May 24, 2021 · 003d856 · 003d856
1 parent d694821
commit 003d856
Show file tree

Hide file tree

Showing 3 changed files with 3 additions and 1 deletion.
diff --git a/appd.adoc b/appd.adoc
@@ -382,6 +382,7 @@ been defined for `C` or `depth_c`.
 
 ===  Ocean sigma over z coordinate 
 
+**The description of this type of parametric vertical coordinate is defective in version 1.8 and earlier versions of the standard, in that it does not state what values the vertical coordinate variable should contain. Therefore, in accordance with the rules, all versions of the standard before 1.9 are deprecated for datasets that use the "ocean sigma over z" coordinate.**
 
 ----
 

diff --git a/conformance.adoc b/conformance.adoc
@@ -690,3 +690,4 @@ sizes minus 1 (CDL index conventions).
 *Recommendations:*
 
 * For a vertical coordinate variable with `**standard_name = "ocean_sigma_z_coordinate"**`, the formula term `**nsigma**` should be omitted.
+* Versions of the standard before 1.9 should not be used for vertical coordinate variables with `**standard_name = "ocean_sigma_z_coordinate"**` because these versions are defective in their definition of this coordinate.
diff --git a/history.adoc b/history.adoc
@@ -279,5 +279,5 @@ node coordinate variables to be one of the dimensions of the data variable.
 .10 March 2021
 . link:$$https://github.com/cf-convention/cf-conventions/issues/313$$[Issue #313]: Clarification of the handling of leap seconds
 
-.25 March 2021
+.24 May 2021
 . link:$$https://github.com/cf-convention/cf-conventions/issues/314$$[Issue #314]: Correction to the definition of "ocean sigma over z coordinate" in Appendix D
Original file line number	Diff line number	Diff line change
Expand Up		@@ -382,6 +382,7 @@ been defined for `C` or `depth_c`.

		=== Ocean sigma over z coordinate

		The description of this type of parametric vertical coordinate is defective in version 1.8 and earlier versions of the standard, in that it does not state what values the vertical coordinate variable should contain. Therefore, in accordance with the rules, all versions of the standard before 1.9 are deprecated for datasets that use the "ocean sigma over z" coordinate.

		----

Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -690,3 +690,4 @@ sizes minus 1 (CDL index conventions).
		Recommendations:

		* For a vertical coordinate variable with `standard_name = "ocean_sigma_z_coordinate"`, the formula term `nsigma` should be omitted.
		* Versions of the standard before 1.9 should not be used for vertical coordinate variables with `standard_name = "ocean_sigma_z_coordinate"` because these versions are defective in their definition of this coordinate.