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A web interface for gridding and visualizing oceanographic data

Alexander Barth (1,2) , Aida Alvera-Azcárate (1,2) , Charles Troupin (1) , Mohamed Ouberdous (1) , Jean-Marie Beckers (1,2) , Matteo Vinci (3) contact: a.barth@ulg.ac.be (1) University of Liege, AGO/GHER, Liege, Belgium (2) National Fund for Scientific Research, Belgium

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A web interface for gridding and visualizing oceanographic data

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  1. Alexander Barth(1,2), Aida Alvera-Azcárate(1,2), Charles Troupin(1), Mohamed Ouberdous(1), Jean-Marie Beckers(1,2), Matteo Vinci(3) contact: a.barth@ulg.ac.be (1)University of Liege, AGO/GHER, Liege, Belgium (2)National Fund for Scientific Research, Belgium (1) OGS-National Institute of Oceanography and Experimental Geophysics A web interface for gridding and visualizing oceanographic data

  2. OceanBrowser • Web-based viewer of climatologies (in NetCDF) • Based on OGS standards (Open Geospatial Consortium): WMS, WFS • Server: • Implemented in Python and running on Apache using mod_wsgi • NetCDF files organized in folders → file structure mapped in a hierarchy of Layers • Adding a new climatology requires just to copy a file in the data folder of the WMS Server • Client: • Based on OpenLayers javascript library • Support for animations in web-browser

  3. Output formats • Available output formats for exporting graphics: • PNG (ubiquitous web browser support) • Scalable Vector Graphics (SVG). W3C standard since 1999. Supported by all major browsers except Internet Explorer. • Keyhole Markup Language (KML). Google Earth and NASA World Wind • Encapsulated PostScript (EPS). Preferred format for numerous scientific journals

  4. Available styles • Styles • Interpolated • Filled contours • Simple contours • Colorbar options • Colormap • Range

  5. Horizontal sections http://gher-diva.phys.ulg.ac.be/emodnet/

  6. Vertical sections

  7. Integration with other Wep Map Services • Possibility to query an inventory of layers from other WMS • Visualize layers from EMODNET (Chemical data) together with other layers

  8. Data Selection

  9. Diva-on-web: upload • http://gher-diva.phys.ulg.ac.be • No registration required • Data uploaded as ascii text or ODV4 file

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