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Layer: 2004 South of Riley's Hump (ID: 112)

Parent Layer: Principal Components Analysis - Highlighted Seafloor Features

Name: 2004 South of Riley's Hump

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Type: Raster Layer

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This layer is a Principal Components Analysis (PCA) derived from the southernmost segment of the multibeam sonar data set - 2004-2018 Tortugas Ecological Reserve North and South – presented in this digital atlas.</SPAN><SPAN> Specifically, this layer was derived from multibeam sonar data collected on the NOAA Ship Thomas Jefferson in 2004. The 2004 multibeam was collected in a much deeper area and with a different sensor and at a different resolution than the data from the North and South Tortugas Reserve. For better resolution and visualization of different benthic habitats in the PCA, this deeper layer was split from the North and South Reserve PCA. The Geotiff is the results of a principle components analysis using 8 derived complexity surfaces from the Multibeam Sonar. The surfaces include</SPAN><SPAN STYLE="font-size:12pt"><SPAN> </SPAN></SPAN><SPAN><SPAN>bathymetry mean, bathymetry standard deviation, curvature, curvature plan, curvature profile, rugosity, slope, and slope of slope</SPAN></SPAN><SPAN><SPAN> The PCA Geotiff can used to delineate different benthic habitat types using a three band color scale. To-date, these data have not been used to create a benthic habitat map.</SPAN></SPAN></P></DIV></DIV></DIV>

Copyright Text: NOAA/NOS/NCCOS Attn: Dr. Chris Taylor 101 Pivers Island Road Beaufort, NC 28516-9722

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