Global Ocean Data Quality Assessment of SARAL/AltiKa

Annabelle Ollivier (CLS, France)

CoAuthors

Vincent Debout (CLS, France); Pierre Prandi (CLS, France); Nicolas Picot (CNES, France)

Event: 2017 Ocean Surface Topography Science Team Meeting

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

Presentation type: Type Poster

Since 2013, the SARAL is delivering high quality sea surface topography measurements including during its drifting phase, started in July 2016,.
We present the current Cal/Val status of the SARAL/AltiKa mission over ocean, mainly from GDR data using Patch 2 version, and IGDR data over the drifting phase. The main data quality metrics are presented (data availability, SSH differences at cross-overs) and demonstrate that the mission is still in excellent shape.
The results of efforts to improve SARAL/AltiKa data are also presented. We estimated a preview of SARAL’s future Patch 3 performance. This Patch-3 like data will feed the next generation of multi-mission products (CMEMS/AVISO). Investigations were also performed on the Ka ability to map differently the oceanic content, notably influencing the relations between significant wave height and topography measurements.

 

Poster show times:

RoomStart DateEnd Date
Concerto Ballroom Thu, Oct 26 2017,14:00 Thu, Oct 26 2017,18:00
Annabelle Ollivier
CLS
France
aollivier@cls.fr