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Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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CLS data centerO. Lauret, C. Boone
CLS - Space Oceanography Division
SeaDataNet annual meeting, Madrid, March 2009
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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CLS processes data and performs operations for satellite missions on behalf of major international space agencies.
About CLS
CLS is located in France (Ramonville, close to Toulouse).
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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About CLS
Data processed in our center:In situ: Argos, IridiumRemote sensing: Topex-Poseidon, JASON-1, JASON-2, ERS-1/2, GFO, Geosat, ENVISAT, Radarsat-1/2, COSMO SkyMed, ALOS PALSAR, TerraSAR-XFuture missions: Sentinel-1/3, SMOS..
And now became an OGC member (2008).
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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Sea level, wave, currents (geostrophic or total currents)Tide predictions, geoid and « ancilliary datasets »Sea surface temperature, chlorophyll/ primary productionWater levels on rivers&lakesecosystems modelling..
Products inform on
For global ocean, and main European basins and seas (suited to the ocean variability scale)
Parameters varied in time. (hindcast, nowcast, and forecast).
SatelliteObservations
In SituObservations
OceanSimulation
AnalysesForecasts
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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Overview of data processed
Altimetry data processing
Level of processing
Level of difficulty from a data management&dissemination point of view..
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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An example of ocean indicator: the mean sea level, that user can donwload in netCDF format.
Other data: ocean indicators
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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Other data: climatologies
WinterDec-Jan-Feb
SpringMar-Apr-May
SummerJun-Jul-Aug
FallSep-Oct-Nov
1993199419951996199719981999
(cm)
Need to work on the CF netCDF format for climatologies exchanges
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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AVISO altimetry data center (CNES) was connected to SeaDataNet databases:• via EDMO• via EDMERP• via CDI•EDMED: files ready, waiting for freezing of v1•EDIOS: next to come•CSR: non applicable
Seadatanet connections: AVISO
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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JASON-1 and ENVISAT mean
ground tracks over the Black Sea
JASON-1,ENVISAT, TPN, GFO mean ground
tracks over the Black Sea
Seadatanet products: merged maps
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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ATOLL system
Real time update
data and metadata
DUACS
Mercator
P
R
O
V
I
D
E
R
Provider
MyOcean SDN Humbold
tConnected systems – GMES integrated projects
...
Data orderSynchronise
catalog
Metadatasoftware
Discover understand
Data order
Web
Services
Web Interface
Final users
W
E
B
C
L
I
E
N
T
S
Intermediate users
ATOLL
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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ATOLL skeleton
netCDF-CF/THREDDS/Opendap
'MOTU'
ISO 19115/19139 metadata
Subscription to an area or a temporal period
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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•Extended ISO metadata profile, including quality information•CSW catalog.•Support of non gridded datasets extraction and donwloading services, such as along-track L2-L3 products.•Use of an OGC Observations&Measurements based data model (CSML..)•Support of 'exotic' products such as ocean indicators (mean sea level..)•In situ data (ARGOS..): OGC Sensor Observation Service?
In fine propose an integrated solution to manage the heterogeneous datasets we are dealing with..
The future and hopes..
Seadatanet annual meeting - 23/03/09 © Connaître aujourd’hui, mieux vivre demain
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A long road..
Thank you.
The future and hopes..
