Multibeam Sonar Mapping and Modeling of a Submerged Bryophyte Mat in Crater Lake, Oregon

Movie 2. Fly-through movie showing the distribution of the bryophyte mat (moss) over Wizard Island platform. Green shades show thicker, continuous mats of moss, whereas yellow shades show areas with thinner, patchy coverage. The red dots show points where moss was observed during the August 2006 camera sled ground-truthing operations and the light blue dots show points where detritus was observed. The gray-scale lake floor was generated from the 2000 multibeam bathymetry data and the land area was generated by draping digital orthophotographs (DOQs) over U.S. Geological Survey 10-m digital elevation models (DEMs). The movie starts by looking straight down over the lake and then zooms toward Wizard Island. The movie flies completely around Wizard Island showing the distribution of the moss and ends looking west over Ryodacite Dome.

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For more information contact: Peter Dartnell