Aerosol Optical Thickness
The aerosol optical thickness (or depth) is one of the variables included in the w_aer.nc file. The other is the aerosol Angström exponent.
The following table provides the main characteristics of this variable including coverage, parameter ID, time latency, sampling and bands used in the associated product. The ancillary and auxiliary data provides the variables used during processing and are provided in Auxiliary Data Files (ADFs).
| PRODUCT NAME | Aerosol Optical Depth |
| PARAMETER ID | T865 |
| PRODUCT LEVEL | 2 |
| DESCRIPTION | Aerosol load, expressed in optical depth at a given wavelength (865 nm) and associated error estimates. |
| PRODUCT PARAMETERS | |
| COVERAGE | global |
| PACKAGING | half-orbit |
| LATENCY | NRT, NTC |
| UNITS | dimensionless |
| RANGE | 0-0.6 |
| SAMPLING | Spatial : approximately 300 m x 300 m (FR) and 1.2 km x 1.2 km (RR); spectral: N/A |
| FORMAT | 1-byte integer |
| APPENDED DATA | Error estimate (1-byte integer) |
| FREQUENCY | 1 product per orbit |
| SIZE OF PRODUCT | Approx. 0.54 GB (FR), 35 MB (RR) |
| ADDITIONAL INFORMATION | |
| INPUT BANDS | Oa5 (510 nm), Oa16 (779 nm), Oa17 (865 nm) |
| ANCILLARY AND AUXILIARY DATA | |