Pacific Reef Assessment and Monitoring Program: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles for selected locations in the Pacific

Near-shore shallow water Conductivity-Temperature-Depth (CTD) surveys provided vertical profiles of temperature, salinity, and turbidity providing indications for water masses and local sea water chemistry changes. These surveys were conducted to characterize the spatial structure of the physical and chemical properties of the ocean environment influencing the living coral reef resources observed during REA and towed-diver surveys. Water samples were collected at the shallow water CTD sites to examine near-shore water quality. Shallow CTD casts are vertical profiles (max 30 meter depth, downcast only) of water column conductivity, temperature, and pressure (Sea-Bird Electronics, SBE19-plus; accuracy of 0.005 S m-1 in conductivity, 0.0002C in temperature, and 0.1% in pressure).  A transmissometer (Wetlabs Inc; provides profiles of beam transmittance, related to turbidity) and a dissolved oxygen sensor (Sea-Bird Electronics, SBE43; accuracy of 2% of saturation) are also attached.  Data are collected by lowering the CTD in a profiling mode from a small boat at a descent rate of approximately 0.5 to 0.75m s-1 to a maximum depth of 30m.  Data processing was performed using Seabird Instrument's SeaSoft SBE Data Processing Software (https://www.seabird.com/software/SBEDataProcforWindows.htm).

Tags: 743, american samoa, american samoa (14s170w0000), at least one: http://www.coris.noaa.gov/data/keywords/coris_theme_keywords.pdf, biosphere, bottom, central pacific ocean, coastal processes, conductivity, coral reef conservation program, coral reef ecosystem division, coral reef ecosystem program, coral reefs, corals, country/territory, cred, crep, density, doc/noaa/nmfs/pifsc, earth science, ecosystem monitoring and assessment, equatorial pacific ocean, guam, guam (13n144e0000), hawaii, hawaiian islands (21n157w0027), hi'ialakai, honolulu, http://www.nodc.noaa.gov/cgi-bin/oas/prd/datatype, http://www.nodc.noaa.gov/cgi-bin/oas/prd/obstype, in situ physical, mariana archipelago, marianas trench marine national monument, national coral reef monitoring program, national marine fisheries service, nmfs, noaa, north pacific ocean, northern mariana islands, northern mariana islands ( cnmi ) (18n146e0000), northwestern hawaiian islands (28n178w0000), nw pacific, ocean basin, ocean chemistry, ocean optics, ocean temperature, oceans, only one: http://www.coris.noaa.gov/data/keywords/coris_discovery_keywords.pdf, oscar elton sette, oxygen, pacific islands fisheries science center, pacific ocean, pacific reef and assessment monitoring program, pacific remote island areas, pacific remote islands marine national monument, papahanaumokuakea marine national monument, pifsc, pria, profile, ramp, reef assessment and monitoring program, reef monitoring and assessment, rose atoll marine national monument, salinity, salinity/density, south pacific ocean, thermocline, triennial, turbidity, u.s. department of commerce, united states of america, us doc, water temperature, western pacific ocean, zoology
Organization: National Oceanic and Atmospheric Administration, Department of Commerce