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Guam and CNMI Underwater Photomosaics

Published by National Centers for Coastal Ocean Science | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2024-05-31T00:00:00.000+00:00
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.

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EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF EARTH SCIENCE > OCEANS > COASTAL PROCESSES > CORAL REEFS CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > GUAM OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > NORTHERN MARIANA ISLANDS VERTICAL LOCATION > SEA FLOOR 1 meter - < 10 meters ACOUSTIC RECEIVERS ACOUSTIC SOUNDERS GPS > Global Positioning System HRC > High Resolution Camera Geographic Information > Marine Management Areas Numeric Data Sets > Benthic COUNTRY/TERRITORY > Northern Mariana Islands > Saipan > Saipan Island (15N145E0002) COUNTRY/TERRITORY > United States of America > Guam > Apra Harbour (13N144E0051) COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000) COUNTRY/TERRITORY > United States of America > Guam > Haputo (13N144E0006) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Saipan Island > Chalan Kanoa (15N145E0012) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Saipan Island > Saipan Island (15N145E0002) EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > GIS EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Habitat Mapping EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Photographic Analysis EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats NCCOS Research Data Type > Field Observation NCCOS Research Data Type > Geospatial NCCOS Research Priority > Marine Spatial Ecology NCCOS Research Topic > Habitat Mapping NCCOS Research Location > Region > International NCCOS Research Location > Region > Pacific Ocean NCCOS Research Location > U.S. States and Territories > Mariana Islands > Guam NCCOS Research Location > U.S. States and Territories > Mariana Islands > Saipan HABITAT - BENTHIC NOAA Coral Reef Conservation Program Naval Facilities Engineering Command (NAVFAC) Marianas COUNTRY/TERRITORY > Northern Mariana Islands > Saipan > Chalan Kanoa (15N145E0012) COUNTRY/TERRITORY > Northern Mariana Islands > Saipan > Saipan Island (15N145E0002) COUNTRY/TERRITORY > United States of America > Guam > Apra Harbour (13N144E0051) COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000) COUNTRY/TERRITORY > United States of America > Guam > Haputo (13N144E0006) VERTICAL LOCATION > SEA FLOOR Blueprint SeaTrac ultra short baseline (USBL) X150 beacon Blueprint SeaTrac ultra short baseline (USBL) X010 transponder Trimble GeoXH GPS Nikon D7500 DSLR camera Sony alpha7 IV DSLR camera DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce NCCOS Habitat Mapping Team

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