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Sentinel-3 OLCI Ocean Colour Products in Case 1 Waters ATBD

The purpose of this document is to lay out algorithms for the OLCI ocean colour products in Case 1 waters.

Sentinel-3 OLCI Atmospheric corrections over Case 1 Waters ATBD

The purpose of this document is to lay out the OLCI atmospheric correction algorithm above Case 1 waters.

Sentinel-3 Synergy Level-2 and Level-3 ATBD

This document describes the algorithms for synergistic processing of data from SLSTR and OLCI to (i) retrieve aerosol optical properties and surface reflectance for cloud-free atmospheres over land, and (ii) to provide comparable products to SPOT-VGT, to allow continuity of data delivery for existing user community of SPOT-VGT. The document includes all assumptions, discusses technical tradeoffs and describes the algorithms in terms of physical background as well as mathematical breakdown.

Sentinel-3 OLCI Rayleigh Correction over Land ATBD

The Bottom of Rayleigh Reflectance (BRR) is a level 2 product over land that can be used in pixel classification. The Rayleigh correction formulation, defined for MERIS, remains pertinent for OCLI. One major improvement should be the use of a DEM of improved spatial resolution, and a smile correction is also simple to introduce.


This Algorithm Theoretical Basis Document (ATBD) describes the Joint Research Centre (JRC)- procedure used to retrieve information of absorbed photosynthetical radiation by the vegetated terrestrial surfaces from an analysis of the Top Of Atmosphere (TOA) data acquired by the future Ocean Land Colour Instrument (OLCI).

Sentinel-3 OLCI Bright Waters Atmospheric Correction ATBD

The purpose of this algorithm is to determine the correction for NIR reflectance needed for the full atmosphere correction model - applied to visible wavelengths.

Sentinel-3 SLSTR Land Surface Temperature ATBD

This document presents the Algorithm Theoretical Basis Document (ATBD) for the retrieval of Land Surface Temperature (LST) from thermal radiances measured by the Sea and Land Surface Temperature Radiometer (SLSTR).

Sentinel-3 SLSTR - Active Fire: Fire Detection and Fire Radiative Power ATBD

This document describes the theory for the prototype multi-channel active fire detection and fire characterisation algorithm for use with data from the SLSTR sensor onboard the ESA Sentinel-3 satellite.

Sentinel-3 SLSTR Sea Surface Temperature ATBD

This document describes the physical and statistical basis for estimation of Sea Surface Temperature (SST) and associated errors in SST, for products of the SLSTR instrument.

Sentinel-3 OLCI Transparency Products ATBD

The purpose of this document is to lay out algorithms for the sea water transparency products.

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