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 |
s | Solar Zenith Angle | ° | 0 – 90 | 2 |
865 | Aerosol Optical Thickness at 865 nm | – | 0 – 2.5 | 2 |
670 | Aerosol Optical Thickness at 670 nm | – | 0 – 2.5 | 2 |
![]() | Aerosol Angström Coefficient (670/865) | – | -0.5 – 2. | 2 |
0 | Single Scattering Albedo at 865 nm | – | 0 – 1 | 1 |
| G | Aerosol scattering asymmetry factor | – | 0 – 1 | 1 |
| AI | Aerosol Index = . 865 | – | -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 |
p865 | Fine mode Optical thickness at 865 nm | – | 0 – 2.5 | 2 |
p670 | Fine mode Optical thickness at 670 nm | – | 0 – 2.5 | 2 |
p | Fine mode Angström exponent (670/865) | – | 1 – 3.5 | 2 |
| Parameters available only for pixels with favourable viewing geometries | ||||
gs865 | Optical Thickness of spherical large mode at 865 nm | – | 0 – 2.5 | 2 |
gns865 | 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: gns865/( gs865+ gns865) | – | 0 – 1 | 1 |
| mp | Refractive Index of fine mode, only for p865>0.02 | – | 1.30 – 1.70 | 1 |
| mg | Refractive Index of coarse mode, only for gs865>0.02 | – | 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 |

s
865
0