68254 SfM Structural Complexity Data Dictionary Entity Published / External 67851 Coral Reef Structural Complexity derived from Structure-from-Motion (SfM) imagery collected at Stratified-Random Sites (StRS) across the U.S. Pacific since 2019 Data Set On Going Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE Data Table Yes Data dictionary for SfM-derived structural complexity dataset 2019 and 2022 retain the same columns, wording was clarified in 2022. In 2026, new metrics were collected and re-generated for older data: DEM_Z SA SLOPE ASPECT VRM PROF_CURV PLAN_CURV 1 OBS_YEAR NUMERIC No No Active 4-digit year the survey was conducted. 2 MISSION_ID TEXT No No Active Mission identifier. 3 REGION TEXT No No Active Code for the region surveyed in the Pacific Islands region: American Samoa, Pacific Remote Island Areas, Mariana Archipelago, main Hawaiian Islands, Northwestern Hawaiian Islands. 4 REGION_NAME TEXT No No Active The name of the region surveyed in the Pacific Islands region: American Samoa, Pacific Remote Island Areas, Mariana Archipelago, main Hawaiian Islands, Northwestern Hawaiian Islands. 5 ISLAND TEXT No No Active Name of island or atoll surveyed in the Pacific Islands region. 6 SITE TEXT 150 No No Active The code for the site surveyed at the island or atoll (ISLAND). Combines a 3-letter island code (ISLANDCODE) with a 2-4 digit site number. 7 SITEVISITID NUMERIC No No Active Unique identifier created each time a SITE is surveyed on a DATE_. 8 REEF_ZONE TEXT No No Active The zone for the given SITE (Forereef, Backreef, Protected Slope, Lagoon). 9 DEPTH_BIN TEXT No No Active Classification of depth (shallow, mid, deep) based on midpoint between minimum and maximum depths of transect(s) of a given SITE. Shallow: >0-6 m, Mid: >6-18 m, Deep: >18-30 m 11 MAX_DEPTH_M NUMERIC No No Active Maximum SITE depth (m). m 12 DATE_ DATE No No Active Local date the survey was conducted. 13 HABITAT_CODE TEXT No No Active 3-letter code for habitat type (e.g. aggregate reef, reef rubble, pavement). 14 LATITUDE NUMERIC No No Active Latitude in decimal degrees, WGS84, for the given SITE. 15 LONGITUDE NUMERIC No No Active Longitude in decimal degrees, WGS84 for the given SITE. 16 RUGOSITY NUMERIC No No Active Rugosity (R) calculated as the ratio between surface area and planar area within each sampling crop. 17 FRACTAL_DIMENSION NUMERIC No No Active Fractal dimension (D) calculated using the standard deviation method within each sampling crop. 18 HEIGHT_RANGE NUMERIC No No Active Height range calculated as the distance between the deepest and shallowest point within each sampling crop. 19 DEM_DEPTH NUMERIC No No Active Depth (m) calculated within each sampling crop gov.noaa.nmfs.inport:68254 Mollie Asbury 2022-11-02T20:31:23 Lori Luers 2026-10-13T00:15:42 2025-12-18 Pacific Islands Fisheries Science Center PIFSC 1845 Wasp Blvd. Honolulu HI 96818 USA 808-725-5300 https://www.pifsc.noaa.gov 8:00 a.m. - 4:30 p.m. 1001 Public No 2022-05-11 1 Year 2023-05-11