Aerosols over ocean level 2 product (around 0.25 Mbytes per orbit): L2TOGC (ex: PARASOL/OC2)
The following geophysical parameters are computed from the level 1 product for each superpixel (3×3 pixels), by orbit segment. All these Level 2 parameters are non-directional.
Parameter | Definition | Unit | Range | Bytes |
---|---|---|---|---|
Parameters available for every clear sky pixels | ||||
DQS | Pixel Quality Descriptor | – | – | 4 |
IQ | Quality index for the inversion | – | 0 – 1 | 1 |
![]() | Solar Zenith Angle | ° | 0 – 90 | 2 |
![]() | Aerosol Optical Thickness at 865 nm | – | 0 – 2.5 | 2 |
![]() | Aerosol Optical Thickness at 670 nm | – | 0 – 2.5 | 2 |
![]() | Aerosol Angström Coefficient (670/865) | – | -0.5 – 2. | 2 |
![]() | Single Scattering Albedo at 865 nm | – | 0 – 1 | 1 |
G | Aerosol scattering asymmetry factor | – | 0 – 1 | 1 |
AI | Aerosol Index = ![]() ![]() | – | -0.5 – 3 | 2 |
Reff | Aerosol Effective radius | µm | 0 – 10 | 1 |
Reffp | Small mode effective radius | µm | 0 – 1 | 1 |
Reffg | Large mode effective radius | µm | 0 – 10 | 1 |
![]() | Fine mode Optical thickness at 865 nm | – | 0 – 2.5 | 2 |
![]() | Fine mode Optical thickness at 670 nm | – | 0 – 2.5 | 2 |
![]() | Fine mode Angström exponent (670/865) | – | 1 – 3.5 | 2 |
Parameters available only for pixels with favourable viewing geometries | ||||
![]() | Optical Thickness of spherical large mode at 865 nm | – | 0 – 2.5 | 2 |
![]() | Optical Thickness of non-spherical large mode at 865 nm | – | 0 – 2.5 | 2 |
ID | Relative contrib of non spherical particles in coarse mode, defined as:![]() ![]() ![]() | – | 0 – 1 | 1 |
mp | Refractive Index of fine mode, only for ![]() | – | 1.30 – 1.70 | 1 |
mg | Refractive Index of coarse mode, only for ![]() | – | 1.30 – 1.70 | 1 |
Beta_log_565 | Logarithm of the backscattering coefficient at 565 nm | – | -2. – 0. | 2 |
Beta_log_1020 | Logarithm of the backscattering coefficient at 1020 nm | – | -2. – 0. | 2 |