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Spectrum_type value | UCD (existing ones only) | Comment / proposed (but do not exist) |
---|---|---|
raw | xxx;stat.uncalib | |
transmission | phys.transmission | |
absorbance | phys.absorption ?? | phys.absorbance |
normalized absorbance | phys.absorption;arith.ratio ?? | phys.absorbance;arith.ratio |
optical depth | phys.absorption.opticalDepth ??opticalDepth | |
absorption coefficient | phys.absorption.coeff | |
optical constants | phys.refractIndex | |
ATR transmission | phys.transmission | |
ATR absorbance | phys.absorbance | |
complex admittance | ||
complex impedance | ||
relative complex permittivity | phys.dielectric | |
dielectric loss tangent | ||
relative complex permeability | ||
magnetic loss tangent | ||
bidirectional reflectance | phys.reflectance.bidirectional | = r = I/πF |
bidirectional reflectance distribution function | phys.reflectance.bidirectional.df | = r / µ0 = BRDF |
radiance factor | phys.reflectance | = πr = RADF = I/F |
reflectance factor | phys.reflectance.factor | = πr / µ0 = REFF |
normalized reflectance | phys.reflectance;arith.ratio | Normalized to a std wvl |
albedo | phys.albedo | |
normalized Stokes parameters | phys.polarization.stokes | (all) |
normalized Stokes parameter Q | phys.polarization.stokes.Q | |
normalized Stokes parameter U | phys.polarization.stokes.U | |
normalized Stokes parameter V | phys.polarization.stokes.V | |
normalized Stokes parameter I | phys.polarization.stokes.I | |
polarization contrast | phys.polarization ?? | phys.polarization.linear ?? |
degree of linear polarization | phys.polarization.linear | phys.polarization.linear.total ?? |
polarization position angle | phys.polarization.rotMeasure ?? | phys.polarization.angle?? |
degree of circular polarization | phys.polarization.circular | reduced Pv |
thermal emission | ||
thermal radiance | phot.radiance | Can be reflected also (at least for observations) |
thermal emittance | ||
thermal emissivity | phys.emissivity | |
scattering intensity |
| phys.scattering - seems required, with subcategories (crossSection, absorption, extinction, albedo) |
differential scattering cross section | phys.atmol.crossSection;arith.diff ?? | phys.scattering.crossSection ?? - Need arith.ang for angular distributions? |
normalized differential scattering cross section | phys.atmol.crossSection;arith.diff;arith.ratio ?? | phys.scattering.crossSection;arith.ratio ?? |
scattering cross section | phys.atmol.crossSection ?? | phys.scattering.crossSection?? |
absorption cross section | phys.atmol.crossSection ?? | phys.scattering.absorption.crossSection |
extinction cross section | phys.atmol.crossSection ?? | phys.scattering.extinction.crossSection |
scattering efficiency factor | phys.absorption ?? | phys.scattering.crossSection;arith.ratio (ratio of cross-section to the geometrical cross-section) |
absorption efficiency factor | phys.absorption ?? | phys.scattering.absorption.crossSection;arith.ratio |
extinction efficiency factor | phys.absorption ?? | phys.scattering.extinction.crossSection;arith.ratio |
single scattering albedo? | phys.scattering.albedo | |
Raman scattering intensity | phys.raman.scattering (lesser priority) | |
normalized Raman scattering intensity | phys.raman.scattering;arith.ratio (lesser priority) | |
Raman scattering coefficient | phys.raman.scattering.coeff (lesser priority) | |
Raman scattering efficiency | phys.raman.scattering.efficiency (lesser priority) | |
fluorescence emission | phys.fluo.emission (lesser priority) | |
normalized fluorescence emission | xxxphys.fluo.emission;arith.ratio (lesser priority) | |
fluorescence emission efficiency | phys.fluo.emission.efficiency (lesser priority) | |
Band lists | spect.line.intensity spect.line.width spect.line;em.freq | Species: Transition: |
Comment: it is highly unlikely that such a detailed description can be supported with UCDs - they are not intended for this, although UCDs for some of these quantities are already defined. Raman and fluorescence related quantities are difficult to produce and have lesser priority.