gov.noaa.nodc:0308012 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-07-14T14:56:07Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Structure from Motion (SfM) Coral (Adult and Juvenile) Annotations derived from Stratified Random Site (StRS) Imagery across American Samoa in 2023 for methods comparison (NCEI Accession 0308012) 2025-09-30 publication 2025-09-16 creation International DOI Foundation (IDF) 10.25921/ggt2-sk81 NOAA National Centers for Environmental Information gov.noaa.nodc:0308012 NCEI Archive Management System 0308012 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Lori Luers NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division nmfs.pic.credinfo@noaa.gov https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information resourceProvider NOAA Pacific Islands Fisheries Science Center (NMFS/PIFSC) resourceProvider Jonathan Charendoff NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division jonathan.charendoff@noaa.gov https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information pointOfContact Lori Luers NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division lori.luers@noaa.gov https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information pointOfContact Thomas Oliver NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division thomas.oliver@noaa.gov https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information principalInvestigator Ecosystem Sciences Division, Pacific Islands Fisheries Science Center https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information author NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information contributor tableDigital Coral adult and juvenile coral colony demographic data described in this dataset are derived from the GIS analysis of benthic photomosaic imagery collected across American Samoa in 2023 for a methods comparison with in situ diver data. Official National Coral Reef Monitoring Program (NCRMP) coral demographic data is archived separately under NCEI Accession 0298217. The source imagery was collected using a Structure from Motion (SfM) approach during in-water surveys conducted by divers. The SfM imagery is archived separately, and can be accessed via InPort record 63095. Data was collected during the NOAA Pacific Islands Fisheries Science Center (PIFSC) and Ecosystem Sciences Division (ESD) led NCRMP mission across the American Samoa from 2023-03-30 to 2023-04-18. This adds to previously archived data from 2019 and 2022 for methods comparison, described on Inport metadata record. The SfM surveys are part of the Rapid Ecological Assessment (REA) surveys for corals and fish conducted during ESD-led NCRMP missions. Surveys were conducted at sites randomly stratified across sub-island sectors and three depth strata (shallow: 0-6m, mid: 6-18m and deep: >18m). These sites represent a broad range of depths (1-25 m), habitat types (aggregate reef, patch reef, pavement, rock and boulder and rubble), coral cover, and diving conditions. Allocation of sampling effort was proportional to strata area and variance in coral density. The StRS design effectively reduces estimate variance through stratification using environmental covariates and by sampling more sites rather than sampling more transects at a site. Therefore, site-level estimates and site to site comparisons should be used with caution. During each survey, an 18m transect line was deployed along the isobath and photographed using underwater cameras while swimming in a back and forth swim pattern for later processing using an SfM approach. At depths of 1-20 m, SfM surveys were conducted over a 3 x 20m area and at depths > 20m, a 3 x 13m area was surveyed, both with the transect running down the middle of the survey area. The photographs were processed using Agisoft Metashape software to generate orthomosaic images that were analyzed in ArcGIS for juvenile and adult coral colony demographic metrics. Data was collected for each site within four 2.5m2 segments, each 1m wide, along the transect (at 0-2.5m, 5-7.5m, 10-12.5m, and 15-17.5m). At deeper sites where a 3 x 13m area was surveyed, only the first three segments were analyzed in ArcGIS. For each adult coral colony (> 5cm in diameter), maximum diameter, ID (to lowest taxonomic level), and estimated percent old mortality were recorded. Bleaching extent (% of living tissue with reduced pigmentation) and severity were also recorded. Juvenile coral colonies (0.7 to 5cm maximum diameter) were recorded within the first 1 m2 of the first 3 segments. For juvenile colonies, only ID and maximum diameter were recorded. The data were collected as part of the NOAA Pacific Islands Fisheries Science Center (PIFSC) and Ecosystem Sciences Division (ESD) led National Coral Reef Monitoring Program (NCRMP) missions around the US Pacific from 2019. The National Coral Reef Monitoring Program (NCRMP) details a long-term approach to provide an ecosystem perspective via monitoring climate, fish, benthic, and socioeconomic variables in a consistent and integrated manner. The NCRMP coordinates various Coral Reef Conservation Coral Reef Program (CRCP) biological, physical, and human dimensions activities into a cohesive NOAA-wide effort. Through the implementation of the NCRMP, NOAA is able to clearly and concisely communicate results of national-scale monitoring to national, state, and territorial policy makers, resource managers, and the public on a periodic basis. The purpose of the Structure from Motion (SfM) surveys throughout the US Pacific is to efficiently and effectively collect coral demographic data. SfM-derived data collection occurred along the same transects as in situ diver coral demographic surveys as a means to compare the use of SfM as a tool for quantifying coral demographic metrics in comparison to traditional visual in situ assessments. Funding Agency: Coral Reef Conservation Program (CRCP) completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0308012 Preview graphic PNG 0308012 NCEI ACCESSION NUMBER 2025-08-29 publication CORAL CORAL - CENSUS CORAL - COLONY SIZE CORAL - SPECIES IDENTIFICATION theme NODC DATA TYPES THESAURUS photograph visual observation instrument NODC INSTRUMENT TYPES THESAURUS biological derived products GIS product in situ laboratory analyses survey - coral reef theme NODC OBSERVATION TYPES THESAURUS NOAA Ship Rainier platform NODC PLATFORM NAMES THESAURUS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Pacific Islands Fisheries Science Center dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coral Reef Conservation Program (CRCP) CORAL REEF STUDIES National Coral Reef Monitoring Program (NCRMP) Pacific Reef and Assessment Monitoring Program (Pacific RAMP) project NODC PROJECT NAMES THESAURUS National Marine Sanctuary of American Samoa Rose Atoll Marine National Monument South Pacific Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication CRED CREP Coral Reef Ecosystem Division Coral Reef Ecosystem Program ESD Ecosystem Sciences Division PIFSC Pacific Island Fisheries Science Center RAMP Reef Assessment and Monitoring Program dataCentre Contributing Data Centers DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian 743 National Coral Reef Monitoring Program project CRCP Project Numeric Data Sets > Benthic theme CoRIS Discovery Thesaurus EARTH SCIENCE > Biosphere > Ecological Dynamics > Species Richness EARTH SCIENCE > Biosphere > Zoology > Corals > Coral Condition EARTH SCIENCE > Biosphere > Zoology > Corals > Coral Diseases > Bleaching EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Coral Colony Size and Condition EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Biological EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Photographic Analysis EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Rapid assessment studies EARTH SCIENCE > Biosphere > Zoology > Corals > Scleractinia (stony corals) EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Benthic Biology EARTH SCIENCE > Oceans > Marine Biology > Coral EARTH SCIENCE > Oceans > Marine Biology > Coral Communities theme CoRIS Theme Thesaurus EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS > CORAL REEFS theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian SfM Structure from Motion theme Provider Keywords VISUAL OBSERVATIONS > VISUAL OBSERVATIONS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian GIS instrument Provider Instruments Ships platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian RAINIER (call sign: WTEF, ICES code: 315R, 1968-) platform ICES/SeaDataNet Ship Codes COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ofu Island (14S169W0013) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Olosega Island (14S169W0014) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Rose Atoll (14S168W0001) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Swains Atoll (11S171W0001) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ta'u Island (14S169W0012) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016) OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000) OCEAN BASIN > Pacific Ocean > American Samoa > Rose Atoll (14S168W0001) OCEAN BASIN > Pacific Ocean > American Samoa > Swains Atoll (11S171W0001) OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016) OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu Island (14S169W0013) OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega Island (14S169W0014) OCEAN BASIN > Pacific Ocean > Manu'a Group > Ta'u Island (14S169W0012) place CoRIS Place Thesaurus OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian T4JLR1 Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Ecosystem Sciences Division, Pacific Islands Fisheries Science Center (2025). Structure from Motion (SfM) Coral (Adult and Juvenile) Annotations derived from Stratified Random Site (StRS) Imagery across American Samoa in 2023 for methods comparison (NCEI Accession 0308012). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/ggt2-sk81. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. license This dataset has been dedicated to the public domain under the Creative Commons CC0 1.0 Universal (CC0 1.0) Public Domain Dedication. SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0) Pacific Islands Fisheries Science Center, 2025: Structure from Motion (SfM) Coral (Adult and Juvenile) Annotations derived from Stratified Random Site (StRS) Imagery across the US Pacific from 2019 to 2023 for methods comparison 2025 publication https://www.fisheries.noaa.gov/inport/item/63097 HTTPS https://www.fisheries.noaa.gov/inport/item/63097 InPort Metadata Record information NOAA Pacific Islands Fisheries Science Center (NMFS/PIFSC) publisher documentDigital crossReference collection Charendoff, J. A., Couch, C., Oliver, T., Lamirand, M., Amir, C., Basden, I., Torres-Pulliza, D., Asbury, M., Winston, M., Huntington, B., Lichowski, F., Osborn, N., Ehrenberg, J., Garriques, J., & Samson, J. (2023). Comparing Coral Demographic Surveys From In Situ Observations and Structure-From-Motion Photogrammetry on High Diversity Reefs Shows Low Methodological Bias but Highlights Persistent Areas of Concern. Pacific Islands Fisheries Science Center (U.S.). https://doi.org/10.25923/8r7f-t404 2023 publication International DOI Foundation (IDF) https://doi.org/10.25923/8r7f-t404 https://doi.org/10.25923/8r7f-t404 HTTPS https://doi.org/10.25923/8r7f-t404 NOAA Technical Memorandum information Charendoff, Jonathan A. author Couch, Courtney author Oliver, Thomas author Lamirand, Mia author Amir, Corinne author Basden, Isabelle author Torres-Pulliza, Damaris author Asbury, Mollie author Winston, Morgan author Huntington, Brittany author Lichowski, Frances author Osborn, Nicolas author Ehrenberg, Jon author Garriques, Joao author Samson, Jennifer author Pacific Islands Fisheries Science Center (U.S.) publisher documentDigital Pacific Islands Fisheries Science Center (U.S.) crossReference sciencePaper Winston, M., Couch, C., Ferguson, M., Huntington, B., Swanson, D. W., & Vargas-Ángel, B. (2019). Ecosystem Sciences Division Standard Operating Procedures: Data Collection for Rapid Ecological Assessment Benthic Surveys, 2018 Update. NOAA Technical Memorandum NMFS-PIFSC ; 92. https://doi.org/10.25923/w1k2-0y84 2019 publication International DOI Foundation (IDF) https://doi.org/10.25923/w1k2-0y84 https://doi.org/10.25923/w1k2-0y84 HTTPS https://doi.org/10.25923/w1k2-0y84 NOAA Technical Memorandum information Winston, Morgan author Couch, Courtney author Ferguson, Marie author Huntington, Brittany author Swanson, Dione W. author Vargas-Ángel, Bernardo author NOAA National Marine Fisheries Service Pacific Islands Fisheries Science Center publisher documentDigital NOAA technical memorandum NMFS-PIFSC ; 92 crossReference sciencePaper Suka, R., Asbury, M., Gray, A. E., Winston, M., Oliver, T. (T. A., & Couch, C. S. (2019). Processing Photomosaic Imagery of Coral Reefs Using Structure-from-Motion Standard Operating Procedures. NOAA Technical Memorandum NMFS-PIFSC ; 93. https://doi.org/10.25923/h2q8-jv47 2019 publication International DOI Foundation (IDF) https://doi.org/10.25923/h2q8-jv47 https://doi.org/10.25923/h2q8-jv47 HTTPS https://doi.org/10.25923/h2q8-jv47 NOAA Technical Memorandum information Suka, Rhonda author Asbury, Mollie author Gray, Andrew Elisha author Winston, Morgan author Oliver, Thomas (Thomas Andrew) author Couch, Courtney S. author Pacific Islands Fisheries Science Center (U.S.) publisher documentDigital NOAA technical memorandum NMFS-PIFSC ; 93 crossReference userGuide Couch, C. S., Oliver, T. A., Suka, R., Lamirand, M., Asbury, M., Amir, C., Vargas-Ángel, B., Winston, M., Huntington, B., Lichowski, F., Halperin, A., Gray, A., Garriques, J., & Samson, J. (2021). Comparing Coral Colony Surveys From In-Water Observations and Structure-From-Motion Imagery Shows Low Methodological Bias. Frontiers in Marine Science, 8. https://doi.org/10.3389/fmars.2021.647943 2021-05-28 publication International DOI Foundation (IDF) https://doi.org/10.3389/fmars.2021.647943 https://doi.org/10.3389/fmars.2021.647943 HTTPS https://doi.org/10.3389/fmars.2021.647943 Journal Article information Couch, Courtney S. author Oliver, Thomas A. author Suka, Rhonda author Lamirand, Mia author Asbury, Mollie author Amir, Corinne author Vargas-Ángel, Bernardo author Winston, Morgan author Huntington, Brittany author Lichowski, Frances author Halperin, Ariel author Gray, Andrew author Garriques, Joao author Samson, Jennifer author Frontiers Media SA publisher documentDigital Front. Mar. Sci. 8 ISSN 2296-7745 crossReference sciencePaper NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division (2022). Structure-from-Motion Coral Demography derived from Stratified Random Site Imagery collected across the Hawaiian Archipelago from 2019-04-21 to 2019-08-03 for methods comparison (NCEI Accession 0253468). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0253468. 2022-05-25 publication NOAA National Centers for Environmental Information gov.noaa.nodc:0253468 https://www.ncei.noaa.gov/archive/accession/0253468 HTTPS https://www.ncei.noaa.gov/archive/accession/0253468 Related NCEI data accession information NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference Ecosystem Sciences Division, Pacific Islands Fisheries Science Center (2023). Structure-from-Motion Coral Demography derived from Stratified Random Site Imagery collected across the Mariana Archipelago from 2022-05-10 to 2022-06-01 for methods comparison (NCEI Accession 0280938). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0280938. 2023-08-04 publication NOAA National Centers for Environmental Information gov.noaa.nodc:0280938 https://www.ncei.noaa.gov/archive/accession/0280938 HTTPS https://www.ncei.noaa.gov/archive/accession/0280938 Related NCEI data accession information Ecosystem Sciences Division, Pacific Islands Fisheries Science Center author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference Ecosystem Sciences Division, Pacific Islands Fisheries Science Center (2024). National Coral Reef Monitoring Program: Coral demographic data (adult and juvenile corals, species, colony length, condition, etc.) collected during Stratified Random Surveys (StRS) across the US Pacific since 2013 derived from in-situ diver surveys and structure-from-motion imagery (NCEI Accession 0298217). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/5qsa-z057. 2024-10-31 publication International DOI Foundation (IDF) https://doi.org/10.25921/5qsa-z057 NOAA National Centers for Environmental Information gov.noaa.nodc:0298217 https://doi.org/10.25921/5qsa-z057 HTTPS https://doi.org/10.25921/5qsa-z057 Related NCEI data accession information Ecosystem Sciences Division, Pacific Islands Fisheries Science Center author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference Pacific Islands Fisheries Science Center, 2025: National Coral Reef Monitoring Program: Structure from motion (SfM) benthic images collected at Stratified Random Sites (StRS) across the US Pacific from 2019 2025 publication https://www.fisheries.noaa.gov/inport/item/63095 HTTPS https://www.fisheries.noaa.gov/inport/item/63095 InPort Metadata Record for related SfM imagery information NOAA Pacific Islands Fisheries Science Center (NMFS/PIFSC) publisher documentDigital crossReference collection eng; USA utf8 environment oceans imageryBaseMapsEarthCover biota -171.091441 -168.13826 -14.55976 -11.04628 2023-03-30 2023-04-18 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. CSV 1.576 https://doi.org/10.25921/ggt2-sk81 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/308012 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/308012 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0241/0308012/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0308012 v1.1 was published. 2025-09-30T20:34:41Z NCEI Accession 0308012 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0308012/1.1 HTTPS NCEI Accession 0308012 v1.1 published 2025-09-30T20:34:41Z download dataset Parameter or Variable: CORAL - COLONY SIZE (measured); Units: square meter; Observation Category: GIS product; Sampling Instrument: GIS; Sampling and Analyzing Method: In ArcGIS, each site was set up for annotation by manually digitizing the transect and segments as a shapefile using the same sampling design as the PIFSC ESD-led in situ coral demography surveys, and setting up the attribute table in a geodatabase to mirror the in situ visual survey database (Swanson et al. 2018; Winston et al. 2019). To record and extract data from the orthomosaic, each coral colony was annotated following the in situ visual survey methods. Each colony was measured by digitizing a line across the maximum diameter of the colony. During annotation, the original JPEG imagery was viewed alongside the orthomosaic with the Viscore Image View feature to see fine scale colony details, observe colonies from multiple angles and locate colonies not visible in the orthomosaic (e.g. under ledges).; Data Quality Method: Prior to generating the 3D dense point clouds and 2D orthomosaics , the JPEG imagery was evaluated for image quality and images deemed unsatisfactory (e.g. overexposed, images of blue water or images of divers, or images not taken perpendicular to the reef) were removed from the image set. During annotation in ArcGIS, the original JPEG imagery was viewed alongside the orthomosaic using the Viscore Image View feature to see fine scale colony details, observe colonies from multiple angles and locate colonies not visible in the orthomosaic. Annotations created in ArcGIS were quality controlled using a multi-stage process. Data were first quality controlled in R with specific queries to identify and correct data entry errors (e.g. misspelled species names, missing segments, data in incorrect columns, partial mortality >100%). Then data were summarized to the segment-level by annotator to identify potential issues (e.g. anomalously high or low mean values for specific metrics relative to other annotators). If issues were identified for a given annotator, that annotator reviewed and corrected each site if they did find errors. Parameter or Variable: CORAL - SPECIES IDENTIFICATION (measured); Units: unitless; Observation Category: laboratory analysis; Sampling Instrument: visual observation; Sampling and Analyzing Method: In ArcGIS, each site was set up for annotation by manually digitizing the transect and segments as a shapefile using the same sampling design as the PIFSC ESD-led in situ coral demography surveys, and setting up the attribute table in a geodatabase to mirror the in situ visual survey database (Swanson et al. 2018; Winston et al. 2019). To record and extract data from the orthomosaic, each coral colony was annotated following the in situ visual survey methods. Each colony was taxonomically identified (to the lowest level possible), estimated percent old mortality, and bleaching extent and severity were recorded. During annotation, the original JPEG imagery was viewed alongside the orthomosaic with the Viscore Image View feature to see fine scale colony details, observe colonies from multiple angles and locate colonies not visible in the orthomosaic (e.g. under ledges).; Data Quality Method: Prior to generating the 3D dense point clouds and 2D orthomosaics , the JPEG imagery was evaluated for image quality and images deemed unsatisfactory (e.g. overexposed, images of blue water or images of divers, or images not taken perpendicular to the reef) were removed from the image set. During annotation in ArcGIS, the original JPEG imagery was viewed alongside the orthomosaic using the Viscore Image View feature to see fine scale colony details, observe colonies from multiple angles and locate colonies not visible in the orthomosaic. Annotations created in ArcGIS were quality controlled using a multi-stage process. Data were first quality controlled in R with specific queries to identify and correct data entry errors (e.g. misspelled species names, missing segments, data in incorrect columns, partial mortality >100%). Then data were summarized to the segment-level by annotator to identify potential issues (e.g. anomalously high or low mean values for specific metrics relative to other annotators). If issues were identified for a given annotator, that annotator reviewed and corrected each site if they did find errors. asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian photograph photograph still images used as the basis for making parameter determinations visual observation visual observation not an instrument - maybe an observation type NOAA Ship Rainier Title: NOAA Ship Flag: United States of America Vessel Type: Research Vessel (Hydrographic) DOB: Apr 1968 IMO: 6711003 Hull Classification: S 221