Sentinel-2 radiometric image quality commissioning: first results

S. Lachérade; V. Lonjou; M. Farges; P. Gamet; S. Marcq; J.-L. Raynaud; T. Trémas

doi:10.1117/12.2194698

12 October 2015 Sentinel-2 radiometric image quality commissioning: first results

S. Lachérade, V. Lonjou, M. Farges, P. Gamet, S. Marcq, J.-L. Raynaud, T. Trémas

Proceedings Volume 9639, Sensors, Systems, and Next-Generation Satellites XIX; 963905 (2015) https://doi.org/10.1117/12.2194698
Event: SPIE Remote Sensing, 2015, Toulouse, France

Abstract

In partnership with the European Commission and in the frame of the Copernicus program, the European Space Agency (ESA) is developing the Sentinel-2 optical imaging mission devoted to the operational monitoring of land and coastal areas. The Sentinel-2 mission is based on a satellites constellation deployed in polar sun-synchronous orbit. Sentinel-2 offers a unique combination of global coverage with a wide field of view (290km), a high revisit (5 days with two satellites), a high spatial resolution (10m, 20m and 60m) and multi-spectral imagery (13 spectral bands in visible and shortwave infrared domains). The first satellite, Sentinel-2A, has been launched in June 2015. The Sentinel-2A Commissioning Phase starts immediately after the Launch and Early Orbit Phase and continues until the In-Orbit Commissioning Review which is planned three months after the launch. The Centre National d’Etudes Spatiales (CNES) supports ESA/ESTEC to insure the Calibration/Validation commissioning phase during the first three months in flight. This paper provides first an overview of the Sentinel-2 system and a description of the products delivered by the ground segment associated to the main radiometric specifications to achieve. Then the paper focuses on the preliminary radiometric results obtained during the in-flight commissioning phase. The radiometric methods and calibration sites used in the CNES image quality center to reach the specifications of the sensor are described. A status of the Sentinel-2A radiometric performances at the end of the first three months after the launch is presented. We will particularly address in this paper the results in term of absolute calibration, pixel to pixel relative sensitivity and MTF estimation.

Citation Download Citation

S. Lachérade, V. Lonjou, M. Farges, P. Gamet, S. Marcq, J.-L. Raynaud, and T. Trémas "Sentinel-2 radiometric image quality commissioning: first results", Proc. SPIE 9639, Sensors, Systems, and Next-Generation Satellites XIX, 963905 (12 October 2015); https://doi.org/10.1117/12.2194698

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Calibration

Satellites

Signal to noise ratio

Diffusers

Modulation transfer functions

Sensors

Short wave infrared radiation

Show All Keywords

Keywords/Phrases

Search In:

Publication Years