There are different data products associated with the three levels of Sentinel-5 data processing:
- Level-0 products contain time-ordered Instrument Source Packets (ISP). Level-0 products are archived but not distributed to end-users.
- Level-1B products include geo-located and radiometrically corrected Top-Of-Atmosphere (TOA) earth radiances.
- Level-2 products consist of geophysical quantities derived from processing measurement data provided in the Level-1B product.
|
Sentinel-5/UVNS Level-1 product |
Parameter(s) |
Distribution |
|
Radiance - UV |
Calibrated Top-Of-Atmosphere (TOA) Earth radiance data from the UV bands. |
To all users |
|
Radiance - NIR |
Calibrated Top-Of-Atmosphere (TOA) Earth radiance data from the NIR bands. |
To all users |
|
Radiance - SWIR |
Calibrated Top-Of-Atmosphere (TOA) Earth radiance data from the SWIR bands. |
To all users |
|
Irradiance |
Calibrated solar averaged irradiance data from all of the five Sentinel-5/UVNS spectral bands |
To all users |
|
Calibration |
Calibration data from all of the five Sentinel-5/UVNS spectral bands |
To expert users |
|
OPF |
Operational parameter file (OPF) containing the current calibration key data to be applied in processing |
To expert users |
|
Sentinel-5/UVNS Level-2 products |
Parameter(s) |
Distribution |
|
O3 |
Ozone (O3) total column, tropospheric column, stratospheric vertical profile |
To all users |
|
NO2 |
Nitrogen dioxide (NO2) total column, tropospheric column |
To all users |
|
SO2 |
Sulfur dioxide (SO2) total column, layer height (TBC) |
To all users |
|
HCHO |
Formaldehyde (HCHO) total column |
To all users |
|
CHOCHO |
Glyoxal (CHOCHO) total column |
To all users |
|
CH4 |
Methane (CH4) total column |
To all users |
|
CO |
Carbon monoxide (CO) total column |
To all users |
|
Cloud |
Cloud effective fraction, effective height, cloud mask |
To all users (TBC) |
|
Aerosol |
Aerosol UV absorption index, layer height, optical depth (TBC) |
To all users |
|
Surface |
Surface effective albedo, scene heterogeneity |
To all users (TBC) |
|
UV |
UV spectrally resolved irradiance at surface, UV index |
To all users |
There are two types of processing modes foreseen for Sentinel-5 data: Near-Real Time (NRT) processing and reprocessing.
NRT processing is performed within strict limits from the time of instrument sensing. The NRT timeliness requirements for Sentinel-5 are:
- Level-1B :
- less than 135 minutes from sensing
- Level-2:
- less than 165 minutes from sensing
Reprocessing is the capability to generate new or updated Level 1 and Level 2 Sentinel-5 products using new or improved algorithms or calibration key data, starting from input data archived in the EUMETSAT Data Centre. The reprocessing mode is only operated for dedicated reprocessing campaigns.