Jason-3 and Jason-2 mission performance

Hélène Roinard (CLS, France)

CoAuthors

Sabine PHILIPPS (CLS, FRANCE); Nicolas PICOT (CNES, FRANCE)

Event: 2018 Ocean Surface Topography Science Team Meeting

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

Presentation type: Type Poster

TOPEX/Poseidon, Jason-1, Jason-2, and then Jason-3 have allowed to build a high-precision ocean altimetry data record on historical ground track. Two altimeters of those are still in flight (Jason-2 and Jason-3). Their data are analyzed and monitored in order to assess the quality of the products.

Over the last 2 years many events occurred on Jason-2 mission. A first move of orbit occurred in October 2016 from TOPEX/Jasons historical ground track to the interleaved with Jason-3 one at the same altitude. In July 2017, Jason-2 was moved to a Long Repeat Orbit (LRO), approximately 27 km below the previous orbit still used by Jason-3. Since this date, SHM has occurred twice (in September 2017 and February 2018). How are the system performance and data quality affected (or not) by these events?

Since May 17th, 2017, Jason-3 is the only satellite on the TOPEX/Jasons historical ground track. A precise knowledge of Jason-3 data quality and errors is a key activity to ensure a reliable service to scientists involved in climate change studies as well as operational oceanography. We aim at presenting the overall performance of Jason-3 mission through different metrics highlighting the high-level accuracy of this mission.

 

Poster show times:

Room Start Date End 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
Hélène Roinard
CLS
France
hroinard@cls.fr