UCD vocabulary revision : first iteration of the maintance procedure

[Mireille Louys]

Dear Semantics , dear tcg members

The Semantics has proposed a Maintenance procedure in oder to update the 
UCD list ( and more generaly ivoa vocabularies)
as stated in the WD 
http://www.ivoa.net/documents/UCDlistMaintenance/20171018/

We are experiencing the first iteration of this procedure.

Here is the list of new terms asked during the last revision iteration 
for UCD terms asked for the period  "May 2017 - Feb2018"
  23 terms have been proposed, discussed in the UCD expert group and 
inserted in the UCD assigning tool.

   Q | phys.electCharge | Electric charge
   Q | phys.current | Electric current
   Q | phys.current.density | Electric current density
   Q | pos.incidenceAng | Incidence angle of optical ray on an interface
   Q | pos.emergenceAng | Emergence angle of optical ray on an interface
   Q | pos.azimuth | azimuthal angle in a generic reference plane
   Q | phys.reflectance | Radiance factor (received radiance divided by 
input radiance)
   Q | phys.reflectance.bidirectional | Bidirectional reflectance
   Q | phys.reflectance.bidirectional.df | Bidirectional reflectance 
distribution function
   Q | phys.reflectance.factor | Reflectance normalized per direction 
cosine of incidence angle
   S |pos.cylindrical |Related to cylindrical coordinates
   Q | pos.cylindrical.r | Radial distance from z-axis (cylindrical 
coordinates)
   Q | pos.cylindrical.azi | Azimuthal angle around z-axis (cylindrical 
coordinates)
   Q | pos.cylindrical.z | Height or altitude from reference plane 
(cylindrical coordinates)
   S | pos.spherical | Related to cylindrical coordinates
   Q | pos.spherical.r | Radial distance or radius (spherical coordinates)
   Q | pos.spherical.azi | Azimuthal angle (spherical coordinates)
   Q | pos.spherical.colat |Polar or Colatitude angle (spherical 
coordinates)
   Q | pos.resolution | Spatial linear resolution (not angular)
   S | pos.bodycentric | Body-centric related coordinate
   S | pos.bodygraphic | Body-graphic related coordinate
   Q | meta.checksum | Numerical signature of digital data
   Q | phys.polarization.coherency | Matrix of the correlation between 
components of an electromagnetic wave

The full detailed discussion is available at the dedicated web page 
http://wiki.ivoa.net/twiki/bin/view/IVOA/UCDList1dot42017June2018FebRFM
We would like to have these terms agreed by the TCG in order to validate 
UCD List version 1.4

Please revise this list and express your comments.
Many thanks ,
Mireille (Semantics WG chair)


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