Minimize Data Products

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.

 

The envisaged Level-1B products are listed in Table 4:

 

Table 4: SENTINEL-5 Level-1B products

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

 

The Level-2 products envisaged are listed in Table 5.

 

Table 5: SENTINEL-5 Level-2 products.

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.