Multibeam Sonar Mapping and Modeling of a Submerged Bryophyte Mat in Crater Lake, Oregon
Movie 1. Fly-though movie around Crater Lake, Oregon. The color-coded lake floor was generated from the 2000 multibeam bathymetry data. Reds and oranges are shallower whereas dark blues and purples are deeper. The grey-scale land area is generated by draping digital orthophotographs (DOQs) over USGS 10-m digital elevation models (DEMs). The movie starts by looking straight down over the lake and then zooms toward Wizard Island. It then flies between the western side of the island and the caldera wall and turns east flying along the northern side of the lake toward Merriam Cone. Flying around the submerged cone the movie travels over the deepest part of the lake (purples) and heads back toward Wizard Island flying over the Central Platform and Ryodacite Dome. The movie ends by turning over the eastern side of the island and heads southeast over the Chaski Bay and Phantom Ship Rock and out past Applegate Peak. Refer to the image at http://walrus.wr.usgs.gov/pacmaps/cl-ovrvw.html for the place names. The vertical exaggeration of topography and bathymetry is 2X.
Download Movie (35.3 Mb)
For more information contact: Peter Dartnell
