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General Information

File Identifier:	gov.noaa.nmfs.inport:72703
Metadata Date Stamp:	2024-06
Organization:	National Centers for Coastal Ocean Science
Organization Role:	resourceProvider

Identification Information

Title:	Guam and CNMI Underwater Photomosaics
Dataset Language:	eng; US
Abstract:	This data package contains georeferenced underwater photomosaics for more than 600 sites in 0 to 50 meter depths around the islands of Guam and Saipan. The photographs used to create these photomosaics were acquired from August 2021 to May 2022 using digital single-lens reflex camera (DSLR) cameras. Green lasers provided a measurement scale (10 cm). A Trimble GeoXH GPS provided the location of the vessel, and a Blueprint SeaTrac ultra short baseline (USBL) X150 beacon and X010 transponder provided the location and depth (XYZ) of the drop camera. The photographs were georeferenced (i.e., given a latitude and longitude), and mosaicked using a custom Python script (Pierce and Winians, 2023; performed using Agisoft Metashape application programming interface). The field work in Saipan was funded by NOAA National Centers for Coastal Ocean Science (NCCOS) and the NOAA Coral Reef Conservation Program (CRCP). The field work in Guam was funded by the Naval Facilities Engineering Command Marianas (NAVFAC Marianas). Both efforts were conducted in partnership with and in consultation with local partners and the territorial governments.
Data Type:	Stereo model

Browse Graphic

Browse Graphic URL:	https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0291792
Browse Graphic Caption:	NA
Browse Graphic Type:	jpg

Data Theme

Theme Topics:

Geological and Geophysical, Oceans and Estuaries

Reference System Information

Reference System URN:

EPSG::4326

Spatial Domain

West Bounding Longitude:	144.582286
South Bounding Latitude:	13.212093
East Bounding Longitude:	145.837466
North Bounding Latitude:	15.294146

Data Quality Information

Scope (quality information applies to):

Dataset

Data History:

This data was collected by NOAA National Centers for Coastal and Ocean Science (NCCOS). The photographs and positioning information were acquired from August 20, 2021 to May 12, 2022. The photographs were acquired using Nikon D7500 camera in 2021 and a Sony alpha7 IV mirrorless camera in 2022). Green lasers provided a measurement scale (10 cm). A Trimble GeoXH GPS recorded the location of the vessel, and a Blueprint SeaTrac ultra short baseline (USBL) X150 beacon and X010 transponder recorded the location and depth (XYZ) of the cameras. The resulting photographs were georeferenced (i.e., given a latitude and longitude), and mosaicked to produce photomosaic and 3D model of the seafloor using a custom Python script (Pierce and Winians, 2023; performed using Agisoft Metashape application programming interface).

Contact Information

Contact Position:	NCCOS Scientific Data Coordinator
Email:	NCCOS.data@noaa.gov

Distribution Information

Distribution Link:	https://experience.arcgis.com/experience/7b6c0e7164234182985a89d5b5703475/page/
Distribution Link Function:	Download

Metadata Reference Information

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