Argo data management September 21, 2004 Ref : cordo/dti-rap/04-081

ARGO DATA MANAGEMENT REPORT FRENCH GDAC

Argo GDAC Functions • National centres reporting to you :

Currently, 8 national DACs submit regularly data to the French GDAC. In 2004, INCOIS (India) and KMA (Korea) started to send data and meta-data. The additional GTS DAC contains all the vertical profiles from floats that are not handled by a national DAC. These data come from GTS and GTSPP projects. On September 21th, the following files were available from the GDAC FTP site :

• AOML, USA File types: meta-data, trajectory, technical and profile 906 meta-data files accepted 35549 profile files accepted 869 trajectory files accepted 869 technical data files accepted

• BODC, United Kingdom File types: meta-data, trajectory and profile 130 meta-data files accepted 5538 profile files accepted 123 trajectory files accepted 0 technical data files accepted

• IFREMER, France File types: meta-data, trajectory, profile and technical 405 meta-data files accepted 16082 profile files accepted 364 trajectory files accepted 364 technical data files accepted

• CSIRO, Australia File types: meta-data, trajectory, profile and technical 31 meta-data files accepted 2246 profile files accepted 30 trajectory files accepted 31 technical data files accepted

• INCOIS, India File types: meta-data, profile 55 meta-data files accepted 773 profile files accepted 0 trajectory files accepted 0 technical data files accepted

• JMA, Japan File types: meta-data, trajectory, profile and technical 348 meta-data files accepted 17163 profile files accepted 347 trajectory files accepted 349 technical data files accepted

• KMA, Korea File types: meta-data, trajectory, profile and technical 39 meta-data files accepted 1485 profile files accepted 33 trajectory files accepted 33 technical data files accepted

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• MEDS, Canada File types: meta-data, trajectory, technical and profile 120 meta-data files accepted 6131 profile files accepted 120 trajectory files accepted 120 technical data files accepted

• GTS (data collected by GTSPP) File type : profile only 25362 profile files accepted

• Operations of the ftp server :

• Meta-data, profile, trajectory and technical data files are automatically collected from the national DACs ;

• Index files of meta-data, profile and trajectory are daily updated ; • GDAC ftp address: ftp://ftp.ifremer.fr/ifremer/argo .

• Operations of the www server :

Ifremer maintains a web site with real-time and delayed mode data or meta-data collected by GDAC. The following features are available :

• Display of Argo profiling floats http://www.coriolis.eu.org/coriolis/cdc/floats/cdcFloats.asp Display all active/old floats per ocean Display technical informations and graphics for floats and

measurements Distribute data in Argo NetCdf format or medatlas Ascii format.

• Web data selection interface : http://www.coriolis.eu.org/coriolis/cdc/dataSelection/cdcDataSelections.asp

Select data by date, location and meta-data informations Select Argo data and additional profiles from GTSPP program (XBT,

CTD, buoys) Distribute data in Argo NetCdf format or medatlas Ascii format.

• Display GDAC monitoring statistics http://www.coriolis.eu.org/coriolis/cdc/argo_gdac_monitoring.htm

• Data synchronization :

• Implemented on 20/02/2003, the synchronization with US-GDAC is performed once a day.

Argo data management GDAC activity report 23/09/04

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Argo profiling floats availables from GDAC in September 2004 (This map includes active and old floats)

Argo and other GTSPP profile data available from the data selection interface, on the first week of September 2004.

Argo data management GDAC activity report 23/09/04

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Argo and other trajectory data available from the data selection interface, on September 2004 (Orange lines : Argo trajectories, blue lines : DBCP buoy trajectories, green lines : Gosud thermosalinographs)

• Use statistics from GDAC FTP site

Number of FTP sessions on GDAC, from January to September 2004

Argo data management GDAC activity report 23/09/04

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Origin of FTP sessions, main areas, from January to September 2004

1 : unspecified origin, 2 : North America, 3 : Occidental Europe, 4 : Northern Europe, 5 : Asia, 6 : Australia, 7 : Oriental Europe, 8 : Southern Africa

Origin of FTP sessions, main countries, from January to September 2004

1 : USA, 2 : France, 3 : Norway, 4 : South Korea, 5 : Canada, 6 : Germany, 7 : Japan, 8 : Australia, 9 : United Kingdom

Argo data management GDAC activity report 23/09/04

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FTP monthly bandwidth, from January to September 2004

FTP activity level per day of the week, from January to September 2004 (1 : Monday – 7 : Sunday)

Argo data management GDAC activity report 23/09/04

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Argo data management GDAC activity report 23/09/04

FTP activity level per hour of the day, from January to September 2004