| Description |
Images of the seafloor off the Kona coast of the Island of Hawaiʻi were collected by the United States Geological Survey in 2003, 2004, and 2022, during field activities A803HW, A204HW, A604HW, and 2022-615-FA. The images were collected in cooperation with the National Park Service, primarily in the waters off Kaloko-Honokōhau National Historical Park, Puʻukoholā Heiau National Historic Site, and Puʻuhonua o Hōnaunau National Historical Park. The 2003 and 2004 images were acquired using a SeaViewer underwater video camera, either towed behind a research vessel or lowered over the side while drifting. GPS positions from a boat-mounted receiver were encoded into the video. Still frames were extracted from the video and geotagged by writing the geographic positions into each image’s EXIF metadata. The 2022 images were acquired using a Teledyne FLIR camera in an underwater housing. The camera was lowered over the side of the vessel and set to capture one image every two seconds while drifting. GPS positions were recorded using a boat-mounted, differentially processed GPS receiver. The images were geotagged by writing the geographic positions into each image’s EXIF metadata. The time stamps for all images in this data release are in Coordinated Universal Time (UTC). The images provided in this data release were used to evaluate coral cover and were manually classified by a specialist. Only the images used in this project are included in the release. [More]
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