THE OCEAN SURFACE TOPOGRAPHY SENTINEL-6/JASON-CS SATELLITES

Luisella Giulicchi (ESA, Netherlands)

CoAuthors

Robert Cullen (ESA, The Netherlands); Craig Donlon (ESA, The Netherlands); Pierrik Vuilleumier (ESA, The Netherlands)

Event: 2017 Ocean Surface Topography Science Team Meeting

Session: Others (poster only)

Presentation type: Type Poster

The Sentinel-6/Jason-CS mission consists of two identical satellites flown consecutively. The mission is designed to provide operational measurements of sea surface height, significant wave high and surface wind speed, to support operational oceanography and climate monitoring. The mission will continue the ocean surface topography started nearly three decades ago with Topex/Poseidon and the Jason satellite series (Jason-3 was launched in January 2016).
The interleaved low resolution (LRM) and Synthetic Aperture Radar (SAR) acquisition modes featured by the numerical architecture of the Poseidon-4 altimeter provide the operational and scientific oceanographic community with continuity of the reference data series and enhanced state-of-the-art operational data.
As a secondary objective the mission also includes a Radio Occultation user services. Each satellite will be launched sequentially into the 1340km, 66 deg inclined reference orbit (~10-day repeat) and after a six-month commissioning phase, have a planned nominal operational lifetime of five years.
The principle payload instrument is a high precision Ku/C band radar altimeter featuring an interleaved mode of operation designed to provide contemporaneous synthetic aperture (SAR) and conventional pulse limited acquisitions. The altimeter is supported by a DORIS and a GNSS (GPS+Galileo) receivers, used for Precise Orbit Determination (POD), and the Climate Quality Advanced Microwave Radiometer (AMR-C) for high stability path delay correction. Orbit tracking data are also provided by a Laser Retro-Reflector Array (LRA) used with ground based satellite laser ranging system (ILRS). An additional GNSS receiver will be dedicated to Radio Occultation measurements.

The Sentinel-6/Jason-CS is a cooperative mission with contributions from NASA, NOAA, EUMETSAT, ESA, CNES in addition to the European Union. It forms part of the European Community Copernicus initiative, whose objective is to support sustainable development and global governance of the environment by providing timely and quality data, with a free and open policy, information, services and knowledge. Sentinel-6/Jason-CS introduces a major enhancement in reference-mission altimetry capability serving the operational and science oceanographic community with the state of the art in terms of spacecraft and payload instrumentation that will secure optimal operational and science data return until at least 2030.

 

Poster show times:

RoomStart DateEnd Date
Concerto Ballroom Thu, Oct 26 2017,14:00 Thu, Oct 26 2017,18:00
Luisella Giulicchi
ESA
Netherlands
luisella.giulicchi@esa.int