Product

Unit

Top Of Atmosphere radiance

mW.m^-2.sr^-1.nm^-1
or
LU (Luminance Unit)

Surface reflectance

dl

Total water vapour

g.cm^-2

Algal pigment index 1 (Chl₁)

mg.m^-3
or
Log₁₀(mg.m^-3)

Algal pigment index 2 (Chl₂)

mg.m^-3
or
Log₁₀(mg.m^-3)

Total Suspended Matter (TSM) or Suspended Particulate Matter (SPM)

g.m^-3
or
Log₁₀(g.m^-3)

Yellow substance absorption

m^-1 or Log₁₀(m^-1)

Photosynthetic Available Radiation (PAR)

microEinstein.m^-2.s^-1
or
10^-6 mol.photons.m^-2.s^-1

Aerosol optical thickness

dl

Aerosol angstrom coefficient

dl

Top Of Atmosphere Vegetation Index (MGVI)

dl

Bottom Of Atmosphere Vegetation Index (MTCI)

dl

Surface pressure

hPa
(hectoPascal)

Cloud top pressure

hPa
(hectoPascal)

Cloud albedo

dl

Cloud optical thickness

dl

Cloud type

-

Quantity

Unit

angles

degree

date

UTC (Universal Time Coordinate)
or
MJD (Modified Julian Day)

duration

10^-6s (seconds)

wavelength

nm (nanometre)

wind speed

m.s^-1

ozone

10^-3 atm.cm
or
DU (Dobson Units)

dimensionless quantities (e.g., reflectance, albedo, mixing ratio etc.)

dl

no dimension (e.g., a variable used to address an element in a table, cloud type etc.)

nd

digital count

if not specified, nc (number of counts) or '-'

spectral irradiance

EU or mW.m^-2.nm^-1

spectral radiance

LU or mW.m^-2.sr^-1.nm^-1