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

(1) OGS-National Institute of Oceanography and Experimental Geophysics

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

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

Available styles

Styles

Interpolated Filled contours Simple contours

Colorbar options

Colormap Range

Horizontal sections

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

Vertical sections

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

Data Selection

Diva-on-web: upload

http://gher-diva.phys.ulg.ac.be

No registration required

Data uploaded as ascii text or ODV4 file