The OLCI Sentinel-3A data are based on ESA's processing baseline collection 002.
The vicarious calibration for S3A OLCI used the ocean reflectance model-based approach.
This is the first NASA processing of the OLCI sensors. The file formats and
product suites will match those emplyed
in the R2014.0 multi-mission reprocessing.
The comparison of the S3A-OLCI time series for global deep water (>1000m) generated for the R2022 configuration to the corresponding Aqua-MODIS time series is shown below (left panels). The ratio of S3A-OLCI to Aqua-MODIS is also shown (right panels).
The comparison of the S3B-OLCI time series for global deep water (>1000m) generated for the R2022 configuration to the corresponding S3A-OLCI time series is shown below (left panels). The ratio of S3B-OLCI to S3A-OLCI is also shown (right panels).
Validation of the remote sensing reflectance (Rrs) was performed relative to all available match-ups from SeaBASS and the Aerosol Robotic Network - Ocean Color (AERONET-OC). Statistical analysis, scatter plots and frequency distribution comparisons of the satellite to in situ match-ups are provided below.
| Product Name | # | Mean Bias | Mean Absolute Error (MAE) | OLCI-S3A Range | In situ Range |
|---|---|---|---|---|---|
| Rrs412 | 835 | 0.00035 | 0.00135 | -0.00351, 0.02058 | 0.00000, 0.02771 |
| Rrs443 | 837 | 0.00058 | 0.00113 | -0.00207, 0.02667 | 0.00025, 0.03234 |
| Rrs490 | 837 | -0.00015 | 0.00087 | -0.00038, 0.03277 | 0.00085, 0.03952 |
| Rrs665 | 837 | -0.00014 | 0.00037 | -0.00087, 0.02214 | 0.00001, 0.02195 |
