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Emodnet Chemistry Lot

The Pilot Project highlights two main subsets of available data - homogeneous distribution in time and space (basins) and not homogeneous distribution in time and space (basins). Guidelines and tools for generating standard interpolated maps and time series plots for ocean data products are provided. Recommendations include focusing on selected parameters, nutrients in the water column, and annual/seasonal scales, among others. The use of specific software and metadata collection guidelines are outlined as well. Links to references and data products are included for further information.

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Emodnet Chemistry Lot

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  1. Emodnet Chemistry Lot Guidelines for data products

  2. The Pilot Project Highlighted 2 main subsets of available data: Homogeneous ditribution In time and space (basins) Not homogeneous ditribution In time and space (basins) Expert workshop, summary of decisions for Products: -Standard Diva Interpolated maps produced for parameters with homogeneous and suitable data coverage, measured on basin scale; -“Time series plots”. Showing stations geographic distribution linked to plots of measured time series. This for not homogeneous datasets as: • coastal points repeated in time, • datasets with fragmented coverage.

  3. The Pilot Project Work done by Regional Leaders Work shared between NODCs Not homogeneous ditribution In time and space Homogeneous ditribution In time and space (basins) DIVAdo Xml Metadata collection Diva software for NetCDF maps Tools for “Time series” plots, suggested ODV Index file (By Gher) Sextant products metadata (By AWI) (By IFREMER) (By Gher) Ocean Browser Products viewing service

  4. CDI collection

  5. Guidelines for data products DIVA interpolated maps: • Focus on the selected parameters; • Focus on nutrients in the water column based on data availability; • Focus on annual and seasonal scale based on data availability; • Interpolated maps generated by Diva software; • Metadata file generated by DivadoXML script;

  6. DIVA interpolated maps

  7. DIVA interpolated maps * * * * * Ocean Browser (Gher group) * Interpolated fields loaded as WMS layers

  8. Guidelines for data products Time Series plots: • -Focus on the selected parameters; • -Focus on the parameters with fragmented coverage (spatial/temporal); • -suggested use of ODV software for plots generation; • -ratio of 1plot:1station (EDIOS) :1parameter:1depth; • -metadata collected in a INDEX file (http://www.data-assimilation.net/mediawiki/index.php/OceanBrowser#Observation_index_files ) Recommendations: • -to avoid plots for stations with less than 3 points; • -to avoid linkage lines between single points; • -to provide TS plots in vector format as SVG;

  9. Guidelines for data products References: -”Product Validation Guideline” at the following page: http://www.emodnet-chemistry.eu/portal/portal/emodnet/Data+Products -“Guidelines for the time series plots production” at the following link: http://www.emodnetchemistry.eu/portal/portal/emodnet/Data+Products

  10. Time Series plots(stations/plots)

  11. Time Series plots Ocean Browser (Gher group) * * products loaded as WMS layers

  12. Link between data and products -Maps linked to all CDI of the selected area; -Time Series plots directly linked to the data used to generate them. Link to data products http://www.emodnet-chemistry.eu/portal/portal/emodnet/Data+Products

  13. Thanks

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