Name: Moderate Depth Bathymetry (10 m)
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Description: This image represents a 10x10 meter depth (bathymetry) surface for areas inside Buck Island Reef National Monument (BIRNM). It was collected by NOAA on two separate missions. On the first mission (from 2/18/2004 to 3/5/2004), depths between 12 and 317 m were surveyed from using a pole-mounted 240 kHz Reson Seabat 8101 Extended Range MBES, producing a 5x5 m bathymetry and 0.5x0.5 m backscatter surface. On the second mission (from 3/21/2006 to 4/2/2006), depths between 16 and 1,000 m were surveyed using a hull-mounted 95 kHz Simrad 1002 MBES, producing a 10x10 m bathymetry and 3x3 m backscatter surface. For both missions, soundings were positioned relative to the horizontal coordinate system (NAD83 UTM 20 N) and to the vertical coordinate system (MLLW). Both bathymetry surfaces were corrected for sensor offsets, latency, roll, pitch, yaw, static draft, the influence of tides and the changing speed of sound in the water column using CARIS HIPS & SIPS software. The 2004 depth surface was down sampled and merged with the 2006 depth surface to create a seamless, 10x10 m bathymetric surface. This seamless depth image (and derivatives from it) was used to develop a new benthic habitat map for BIRNM in 50 to 1,000 meters of water.
Copyright Text: NOAA/NOS/NCCOS/MSE/Biogeography Branch
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