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C. COATANOAN

Reference Database for Argo DMQC. C. COATANOAN. Reference Database for Argo Delayed Mode Quality Control. Data Source : WOD2005 from NODC Data collected from OCEAN CLIMATE LABORATORY. Reference Database for Argo Delayed Mode Quality Control. Quality Control and storage

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C. COATANOAN

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  1. Reference Database for Argo DMQC C. COATANOAN

  2. Reference Database for Argo Delayed Mode Quality Control Data Source : WOD2005 from NODC Data collected from OCEAN CLIMATE LABORATORY

  3. Reference Database for Argo Delayed Mode Quality Control • Quality Control and storage • Quality indicator : FLAG from NODC, Coriolis QC (automatic tests + objective analysis) • Others Criteria : • - Casts deeper than 900 dbar (to exclude coastal stations and stations shallower than the T-min layers) • - Full-depth profiles kept for station

  4. Reference Database for Argo Delayed Mode Quality Control Boxes : Data into separated 10°x10° WMO boxes and stored under filename ctd_<n°wmo>.mat Temperature : Conversion for in-situ temperature (ITS-90 converted in ITS-68) Salinity : weed out all data points outside these ranges 24<S<41 All profiles stored in original un-interpolated vertical resolution

  5. Reference Database for Argo Delayed Mode Quality Control • Quality Control and storage • Details on variables : • dates (1xn, yyymmddhhmmss) • lat (1xn, north is +, south is -) • long (1xn, 0° to 360°, e.g. 60°W=300°) • pres (mxn, in dbar) • sal (mxn, salinity) • temp (mxn, in-situ temperature in ITS-68) • ptmp (mxn, potential temperature relative to 0 dbar) • source (1xn, unique character strings stored in a cell array : station_id) ctd_3405.mat source: {1x47 cell} dates: [1x47 double] long: [1x47 double] lat: [1x47 double] ptmp: [2000x47 double] pres: [2000x47 double] sal: [2000x47 double] temp: [2000x47 double]

  6. Reference Database for Argo Delayed Mode Quality Control After quality control and others criteria to provide the CTD dataset

  7. Reference Database for Argo Delayed Mode Quality Control WOD2005 (red) : What we have more than the WOD2001 (blue) ?

  8. Reference Database for Argo Delayed Mode Quality Control WOD2001 (blue) : missing data in WOD2005 and/or after quality control ? Old data < 1990 (no objective analysis for years older than 1990)

  9. Reference Database for Argo Delayed Mode Quality Control Distribution of stations for each year and database 3500 6000 3500 1990 2000 1990 2000

  10. Reference Database for Argo Delayed Mode Quality Control For each box -5000 -7000

  11. Reference Database for Argo Delayed Mode Quality Control -6000 -6000

  12. Reference Database for Argo Delayed Mode Quality Control Source = station_id in the Coriolis database : Unique ID in the Coriolis database >> load('ctd_3502.mat') Name Size Bytes Class JULD 1x13 104 double array LAT 1x13 104 double array LON 1x13 104 double array PRES 5944x13 618176 double array PSAL 5944x13 618176 double array PTMP 5944x13 618176 double array SOURCE 1x13 962 cell array TEMP 5944x13 618176 double array SOURCE = Columns 1 through 9 '2637746' '2637791' '2637836' '2898854' '2898866' '2898882' '2898890' '2898899' '2898913‘ Columns 10 through 13 '2898927' '2898936' '2900392' '2900408'

  13. Reference Database for Argo Delayed Mode Quality Control • Where find data ? • On the ftp site • ftp.ifremer.fr • cd coriolis/data/DMQC-ARGO • Ask for the login and password (codac@ifremer.fr) • to do a list of users – Information about updates • ARGO2008V01.tar.gz • argo_clim.tar.gz • doc_about_argo_clim

  14. Reference Database for Argo Delayed Mode Quality Control Not yet done - wmo boxes with more than 10000 profiles, only select profiles that are post-1995 • Future • Complete with ‘old’ data (before 1990) • Add recent CTD • Update reference dataset on a regularly base

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