[CF-metadata] questions about the Standard Quantities table
John Caron
caron at unidata.ucar.edu
Mon Oct 27 16:39:43 MST 2003
1. longwave_radiance is supposed to correspond to GRIB parameter 119
(LWRAD), but the units are different.
NCEP LWRAD W/m/sr 119
Radiance (with respect to wave number)
UCAR longwave_radiance W m-2 sr-1 119
Radiance is the radiative flux from a particular direction, per unit
of solid angle. "longwave" means longwave radiation.
2. similarly, shortwave_radiance is supposed to correspond to GRIB
parameter 120 (SWRAD), but those units are different.
NCEP SWRAD W/m**3/sr 120
Radiance (with respect to wave length)
UCAR shortwave_radiance W m-2 sr-1 120
Radiance is the radiative flux from a particular direction, per unit
of solid angle. "shortwave" means shortwave radiation.
the grib table is inconsistent, did you decide that it is wrong?
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