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mersea global ftp distribution
 
 

Coriolis performs a daily distribution of all temperature, salinity and current measurements controlled during the day.
The control involves automatic QC, visual QC and statistical QC (objective analyses). More on quality control.
The purpose of the daily distribution is assimilation in global, regional and local models (Mercator, Foam, Topaz, Mfstep, DMI, Mars).

All new in-situ measurements are distributed in daily ftp files : ftp://ftp.ifremer.fr/ifremer/coriolis/mersea
About 1000 profiles and 20 000 located measures are distributed every day.

Organization

The distribution directory contains one file per day, per type of data, per ocean;
All files that are older than 60 days are deleted. 

File naming convention

CO_YYYYMMDD_XX_YY_O.nc.gz
CO : Coriolis bigram
YYYYMMDD : day of distribution
XX : TS (time series) ou PR (profiles)
YY : data type (see below)
O : ocean (A : Atlantic, I : Indian, P : Pacific)

Example

Measurements controlled and distributed on March 23rd 2005 :

mersea\CO_20050324_PR_PF_P.nc.gz    Pacific Argo floats data
mersea\CO_20050324_PR_XB_A.nc.gz    Atlantic XBT data
mersea\CO_20050324_TS_TS_A.nc.gz    Atlantic thermosalinograph data
...

File format

Argo NetCDF profile compressed with gzip.
This unique format is used for profiles, trajectories and time-series. In case of trajectories and time-series, profile files usually have only one level.
All profiles are ordered in increasing chronological order.
More on Argo NetCDF format, Argo data format (user's manual)

 Data type

Profile data type (PR) :

PF Argo floats
XB XBT ou XCTD profiles from research or commercial ships
CT CTD from research vessels
BA BATHY profiles from GTS
TE TESAC profiles from GTS
MO profiles from moorings

Trajectories and time-series data type (TS) :

TS thermosalinograph data
AR Argo trajectory data
DB buoy data

Distribution rule for a profile

The profile as not yet been distributed (ie no duplicate);
The profile date is less than 90 days old ;
The profile was controlled.

Distribution rule for a trajectory or time-series data

The location has not yet been distributed (ie no duplicate)
The location date is less than 90 days old
The location was controlled
 

Last update 10/05/2006
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