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)

Description

Coral adult and juvenile coral colony demographic data described in this dataset are derived from the GIS analysis of benthic photomosaic imagery for a methods comparison with in situ diver data. Official National Coral Reef Monitoring Program (NCRMP) coral demographic data is archive 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 data were collected as part of the NOAA Pacific Islands Fisheries Science Center (PIFSC) and Ecosystem Sciences Division (ESD; formerly the Coral Reef Ecosystem Division) led NCRMP missions around the Main Hawaiian Islands in 2019 aboard the NOAA Ship Oscar Elton Sette. 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.

Resources

Name Format Description Link
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/0253468
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/253468
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/253468
0 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). ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0202/0253468/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 InPort Metadata Record https://www.fisheries.noaa.gov/inport/item/63097
0 NOAA Technical Memorandum https://doi.org/10.25923/8r7f-t404
0 NOAA Technical Memorandum https://doi.org/10.25923/w1k2-0y84
0 NOAA Technical Memorandum https://doi.org/10.25923/h2q8-jv47
0 Journal Article https://doi.org/10.3389/fmars.2021.647943
0 related journal article https://doi.org/10.7717/peerj.1077
0 Petrovic V, Vanomi DJ, Richter AM, Levy TE, Kuester F. 2014. Visualizing high hesolution three-dimensional and two-dimenstional data of cultural heritage sites. Mediterranean Archaeology and Archaeometry, 14(4), 93-100 https://escholarship.org/uc/item/58z4j8k2 https://escholarship.org/uc/item/58z4j8k2
0 related journal article https://doi.org/10.25923/39jh-8993
0 Related NCEI data accession https://www.ncei.noaa.gov/archive/accession/0280938
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Related NCEI data accession https://doi.org/10.25921/ggt2-sk81
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Related NCEI data accession https://doi.org/10.25921/5qsa-z057
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/0253468
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/253468
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/253468
0 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). ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0202/0253468/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 InPort Metadata Record https://www.fisheries.noaa.gov/inport/item/63097
0 NOAA Technical Memorandum https://doi.org/10.25923/8r7f-t404
0 NOAA Technical Memorandum https://doi.org/10.25923/w1k2-0y84
0 NOAA Technical Memorandum https://doi.org/10.25923/h2q8-jv47
0 Journal Article https://doi.org/10.3389/fmars.2021.647943
0 related journal article https://doi.org/10.7717/peerj.1077
0 Petrovic V, Vanomi DJ, Richter AM, Levy TE, Kuester F. 2014. Visualizing high hesolution three-dimensional and two-dimenstional data of cultural heritage sites. Mediterranean Archaeology and Archaeometry, 14(4), 93-100 https://escholarship.org/uc/item/58z4j8k2 https://escholarship.org/uc/item/58z4j8k2
0 related journal article https://doi.org/10.25923/39jh-8993
0 Related NCEI data accession https://www.ncei.noaa.gov/archive/accession/0280938
0 Related NCEI data accession https://doi.org/10.25921/ggt2-sk81
0 Related NCEI data accession https://doi.org/10.25921/5qsa-z057
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 Institution web page https://www.pifsc.noaa.gov/ecosystem_sciences/
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords

Tags

  • hawaiian islands (21n157w0027)
  • lanai island (20n156w0002)
  • crep
  • lanai island
  • 8del5n
  • united states of america
  • reef monitoring and assessment
  • corals
  • kahoolawe island (20n156w0001)
  • coral reef ecosystem division
  • benthic
  • oahu (21n157w0003)
  • pifsc
  • maui
  • biosphere
  • photographic analysis
  • national coral reef monitoring program
  • oceans
  • maui island (20n156w0004)
  • molokai island
  • maui island
  • numeric data sets
  • hawaii
  • oceanography
  • oahu island
  • scleractinia (stony corals)
  • hawaii island (19n155w0003)
  • kauai
  • pacific islands fisheries science center
  • hawaii (21n160w0000)
  • earth science
  • molokai island (21n157w0001)
  • niihau island (21n160w0001)
  • kahoolawe island
  • hawaiian islands
  • kauai island (22n159w0001)
  • ramp
  • coral diseases
  • marine biology
  • coral communities
  • cred
  • honolulu
  • bleaching
  • central pacific ocean
  • kalawao
  • 743
  • reef assessment and monitoring program
  • ocean basin
  • coral
  • niihau island
  • coastal processes
  • zoology
  • coral reefs
  • coral condition
  • kauai island
  • pacific ocean
  • country/territory
  • hawaii island
  • coral reef ecosystem program

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