{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "", "description": "This image represents a 50x50 meter principal component (PC) surface for areas inside Buck Island Reef National Monument (BIRNM). This PC surface describes seafloor\u2019s topography and structure, which is important information when characterizing the seafloor. It was ultimately derived from the depth surfaces collected by USGS (in 11 to 4,670 m of water) using a SeaBeam 2112 multibeam echosounder (MBES). Several metrics were derived from these depth surfaces, including: (1) mean depth, (2) standard deviation of depth, (3) curvature, (4) plan curvature, (5) profile curvature, (6) rugosity, (7) slope, and (8) slope of slope images. These images were stacked and transformed into their first three principal components using Principal Components Analysis. This transformation removed information that was redundant across the different images. This PC image (along with backscatter) was used to develop a new benthic habitat map for BIRNM in 1,000 to 1,830 meters of water.", "summary": "", "title": "Deep Principle Component Analysis (50 m)", "tags": [], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 0, "maxScale": 0, "spatialReference": "", "accessInformation": "NOAA/NOS/NCCOS/MSE/Biogeography Branch", "licenseInfo": "" }