1. www.mersea.eu.orgwebmaster@mersea.eu.org MapServer e-technology in a few words...

2. MapServer Technology (http://mapserver.gis.umn.edu/) An online Geographic Information System Since 1994, open source middleware, developped by University of Minnesota with support from NASA (Map Server) Added values Process vector data (ESRI shapefiles, PostGIS, ESRI ArcSDE and others via OGR ) Process raster data (TIFF/GeoTIFF, EPPL7 and others via GDAL) Connectable to Opendap (now process numerical data and access them on Internet) Quadtree spatial indexing for shapefiles Enables inter-operability / inter-activity functionalities Select the product of interest Sub-setting capabilities Overlay capabilities On-the-fly configuration via URLs On-the-fly projection Feature selection by item/value, point, area or another feature Fully customizable, template driven output, map element automation (scalebar, reference map, and legend) ‘Mosaic/Puzzle’ presentation so as to take account of the better accuracy per area Auxillary data Ports, Rivers, Currents (vector) Bottom topography, Bathymetry, Climatology (raster) Argos data (vector)

3. MapServer: 4D data into a 2D mapping tool

4. wind (AVISO) 20/08/2004 grid: 1/3° scale: 0 to 16 m/s MSLA (DUACS) 10/07/2004 grid: 1/3° scale: -50 to 50 cm Ocean color / chlorophyl (MODIS) 11/08/2004 grid: 0.04° scale: -80 to 100 xx SST (AVHRRR) 11/08/2004 grid: 0.04° scale: 0 to 30° E-techno Added Value: quick test with a Map Server

5. Framework Added Value (quick test with a Map Server) SST (AVHRRR) 11/08/2004 grid: 0.04° scale: 0 to 30°C Ocean color / chlorophyl (MODIS) 11/08/2004 grid: 0.04° scale: -80 to 100 Salinity (MERCATOR) 01/01/2004 grid: 1/8° scale: 25 to 40 psu Temperature (MERCATOR) 01/01/2004 grid: 1/8° scale: 0 to 30°C

6. 2 day interval To= 20 march 2004 (a good diver about 1 hour length) Depth (m) Temperature o C North Atlantic Drift Distance (km) Use example: Seal => New in situ data ? or animal behaviour in an ocean environment ?