Stoneyhurst heliographic coordinate system

Note for ongoing work..

The Stoneyhurst heliographic coordinate system is defined in following article among other sun-based coordinate systems:

THOMPSON, W. T. Coordinate systems for solar image data. Astronomy & Astrophysics, 2006, 449.2: 791-803. Also available at http://secchi.nrl.navy.mil/wiki/uploads/Main/coordinates.pdf

Findings: the term "heliographic latitude/longitude" is parallel to geographic lat/lons.  When we are aware about oblateness of the Earth (i.e. almost everywhere except for weather modellers), we distinguish "geographic" and "geocentric" latitudes.  More general terms are "planetographic" and "planetocentric".  In the Stoneyhurst system, we assume spheric sun (i.e. zero oblateness) implicitly, so we use the term "heliographic" in spite of the mathematical formula based on heliocentric coordinates.

[WCMP] conceptual "extension" encoded as restrictions in terms of XML

The WMO core metadata profile, version 1.3, says it is a restricted profile of ISO 19115:

A category-1 profile places additional restrictions on the use of an International Standard to meet the more specific requirements of a given community

But I found some people described it's an extended profile because it has additional codelists. Which is right?

In my view, both.

Apparently opposite terminologies reflect different levels of viewpoint: conceptual and concrete, or more frankly, UML and XML.

[WCMP] Questions on Schema and Schematrons re v1.2 and 1.3

There are many questions regarding WMO Core Metadata Profile (WCMP).  I think some are really worth sharing.

[WCMP] how to cite International Meteorological Vocabulary (WMO 182)?

Question:

I'm trying to use some words from IMV (the International Meteorological Vocabulary, WMO No. 182) as keywords for WIS Discovery metadata.

• Is the latest version of IMV dated 1992?
• All words in IMV are found in METEOTERM [http://www.wmo.int/pages/prog/lsp/meteoterm_wmo_en.html].  Should I indicate the URL inside thesaurusName identifier?  That would make documentation more useful. 
• How would you do after all?
• How would you cite IMV in literature other than WIS metadata?

Answer:  there's no authorized recommendation from appropriate body, but if there's immediate need, I would do:

2013 amendment of Manual on the WIS about metadata - including amendment procedure

Recommendation 8 (CBS-15), followed by EC approval, amended the Manual on the WIS, effective 1 July 2013.  Unfortunately the latest manual is not posted on the WMO web, probably waiting for translations.  Those who do not have time to check 314 pages of the Final Report of CBS-15 may find following exerpts useful.
CAUTION: NO WARRANTY AT ALL.