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“Potential physics data in the SeaDataNet CDI system – potential and challenges”

“Potential physics data in the SeaDataNet CDI system – potential and challenges” Peter Thijsse MARIS SeaDataNet2 - Plenary, Split – 24 September 2014. Challenge for physical data in operational centers, ROOS/MyOcean and CDI.

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“Potential physics data in the SeaDataNet CDI system – potential and challenges”

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  1. “Potential physics data in the SeaDataNet CDI system – potential and challenges” Peter Thijsse MARIS SeaDataNet2 - Plenary, Split – 24 September 2014

  2. Challenge for physical data in operational centers, ROOS/MyOcean and CDI • ROOSes and MyOcean demonstrate the available stations in their indexes, but analysis of local networks indicate there is more: • Not all stations are shared to ROOSes (historically, or restrictions) • Not all parameters are shared • Historically active stations (logically) not present

  3. CDI system already holds large potential of physical data, but: • Stations can not be recognised due to missing/different station name. • Archived data center do not hold, or do not share the physical data yet. • Often recent data is missing (gap of many years) How did we analyse this?

  4. Query for potential physical data from fixed stations in CDI 1) search for:-- discovery parameters (P02) = RFVL, PPAB, EXCO, KRTS, LERR, LVLT, ASLV, WVSP, LRZA, GWDR, WVST, HEAV, CAPH, CDTA, CHUM, EWSB, WSTR-- measurement area type (L02) = 4   (=point)-- lat lon box: POLYGON((-29.23 27.2201, 43.4901 27.2201, 43.4901 75.35,-29.23 75.35, -29.23 27.2201)-- observation duration > 27 days   2) delete from results all CDI records with station_name = unspecified3) sort all remaining results by CDI_author => CDI_originator => station_name and then group count number of CDI records per station_name -- delete from the results all station_names with only 1 CDI record, that have a observation period < 360 days

  5. “Slim CDI physics interface” • Special interface on CDI subset only holding potential fixed station data • http://slim-emodnet-physics.maris2.nl/v_cdi_v3/browse_step.asp • Also stations no longer active (not in NRT data exhange)

  6. The current potential coverage map

  7. The current potential coverage • 864 stations • 11.377 CDI records • Coverage well in some countries, not in others

  8. Challenge of EMODNet Physics • Fix the gaps • Stimulate the exposure of physical data by data centers, necessary to streamline the process from operator to archive data center • Stimulate the operators, via the ROOS, to expand station coverage and parameter content • Harmonise the station names via code list to enable linking NRT and archived data of the same station

  9. Time for discussion!

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