Pacific Reef Assessment and Monitoring Program: Geospatial, Temperature, and Depth Data Collected during Towed-diver Surveys of the U.S. Pacific Reefs from 2000 to 2017

The geospatial, temperature and depth data included in this dataset are from towed-diver surveys (also referred to as towboard surveys) of coral reef ecosystems conducted during Pacific Reef Assessment and Monitoring Program (RAMP) cruises to the Hawaiian and Mariana Archipelagos, American Samoa, and the Pacific Remote Island Areas from 2000 to 2017 by the Ecosystem Sciences Division (formerly known as the Coral Reef Ecosystem Division) at the NOAA Pacific Islands Fisheries Science Center (PIFSC).

Generally, the towed-diver survey method involved towing a pair of SCUBA divers—one benthic and one fish—behind a small boat for 50 minutes, approximately following the ~15-m depth contour and covering a linear distance of about 2-3 kilometers per survey. A complete 50-minute towed-diver survey is divided into ten 5-minute segments, and up to 6 towed-diver surveys are conducted per day.

Each diver was equipped with a towboard outfitted with instrumentation and used to record observations, and the divers attempted to maintain position ~1 meter above the surface of the reef for the duration of the survey. Both towboards were equipped with a SeaBird™ SBE39 temperature/depth sensor that recorded water temperature and depth every 5 seconds. The survey tracks were also recorded every 5 seconds using a GPS receiver located on the small boat. The survey tracks were georeferenced and a script was applied to adjust the GPS waypoints from the boat's position to the estimated positions of the divers while conducting the surveys, correlate the associated temperature and depth data, and lace the waypoints together into 5-min segments and tow tracks. The dataset includes the adjusted dive points, and the segments and tow tracks are provided as shapefiles.

Data and Resources

Additional Info

Field Value
Last Updated August 6, 2019, 05:55
Created June 21, 2019, 23:55
access_constraints ["Access Constraints: None | Use Constraints: Please cite PIFSC Ecosystem Sciences Division (ESD) when using the data.\n\nExample:\n\nEcosystem Sciences Division; Pacific Islands Fisheries Science Center, 2019: Pacific Reef Assessment and Monitoring Program: Geospatial, Temperature, and Depth Data Collected during Towed-diver Surveys of the U.S. Pacific Reefs from 2000 to 2017, https://inport.nmfs.noaa.gov/inport/item/25298. | Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty."]
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bbox-north-lat -11.0449
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contact-email ivor.williams@noaa.gov
coupled-resource []
dataset-reference-date [{"type": "creation", "value": "2019-05"}, {"type": "publication", "value": "2019"}]
frequency-of-update notPlanned
guid gov.noaa.nmfs.inport:25298
licence ["NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose."]
metadata-date 2019-06-19T22:47:32
metadata-language eng
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