Sentinel-3A mission : a high quality data set for altimetry over ocean

Matthias Raynal (CLS, France)


Sylvie Labroue (CLS, France); Pierre Féménias (ESA/ESRIN, Italy); Remko Scharroo (EUMETSAT, Germany)

Event: 2018 Ocean Surface Topography Science Team Meeting

Session: Regional and Global CAL/VAL for Assembling a Climate Data Record

Presentation type: Type Poster

Sentinel-3A mission was successfully launched in February 2016. It is a multi-instrument mission to measure surface topography, sea- and land-surface temperature, ocean colour and land colour with high-end accuracy and reliability. We focus here on the observations acquired over ocean by the Surface Topography Mission (STM) payload that encompasses a dual frequency altimeter, a dual frequency radiometer as well as Doris, LRR and GNSS sensors.

ESA and EUMETSAT have defined the Mission Performance Framework for qualifying the performance of the Sentinel-3 mission, sensors and products. One important piece of this component is the Mission Performance Centre (MPC), which is in charge of the performance of the Optical Mission and of the Surface Topography Mission (STM).

The Sentinel-3 Mission Performance Centre (S3-MPC) has been charged with different main activities for the STM:
• Quality Control activities of the Land products
• The calibration, characterisation and performance of the altimeter (SRAL) and the microwave radiometer (MWR) sensors
• Validation of the products and ground processing
• Assessment of the mission performance
• Support for the continuous improvement of the S-3 STM performance

The present paper will detail the results on the STM Sentinel-3A Level 2 mission performance. Based on the time series acquired with Sentinel-3A mission since March 2016, this assessment will address the performance obtained over ocean and coastal areas for different parameters (topography, wind and wave). The mission performance will be measured through the comparison to other altimeters and models and will highlight how Sentinel-3A meets the mission requirements.


Poster show times:

RoomStart DateEnd Date
Foyer, Salao Nobre & tent Thu, Sep 27 2018,18:00 Thu, Sep 27 2018,20:00
Foyer, Salao Nobre & tent Fri, Sep 28 2018,14:00 Fri, Sep 28 2018,15:00
Matthias Raynal