Gathering Data (Practice)

September 12, 2011 § Leave a comment

After data is gathered, it can be parsed for analysis and reflection in many different ways.

Cameras have EXIF data (Exchangeable Image File Format) and can be mapped with GPS’, which have atomic clocks. When mapping a series of photos, they should be first collectively synchronised (the photo timestamps and the GPS’ correct clock). The photos can then automatically be mapped to a geo-tagged route (gpx) with a variety of image software like MS Pro Photo Tools or Aperture. I’ve opted to use the latter (depicted below). From here, photos can easily be uploaded to Flickr, Picasa, etc. (might start using this when it comes to my own files, nice contextual info-vis’).

Standard field data from a Total Station Survey can be used to generate a raster DEM and vector contours. This can be done in ArcGis with the a series of elevation points, dem, which can be converted to contours via natural neighbour, and represented as contour lines. (This process was applied to the DEM data of the 2007 Irrawang survey).



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