National Coral Reef Monitoring Program: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles for selected locations across the Northwestern Hawaiian Islands from 2015-07-31 to 2015-08-19 (NCEI Accession 0161170)

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 Rapid Ecological Assessments 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 (http://www.seabird.com/software/SBEDataProcforWindows.htm).

Data and Resources

Additional Info

Field Value
Last Updated September 19, 2017, 04:25
Created June 3, 2017, 02:01
access_constraints ["Cite as: Coral Reef Ecosystem Program, Pacific Islands Fisheries Science Center (2017). National Coral Reef Monitoring Program: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles for selected locations across the Northwestern Hawaiian Islands from 2015-07-31 to 2015-08-19 (NCEI Accession 0161170). Version 1.1. NOAA National Centers for Environmental Information. Dataset. [access date]", "NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose."]
bbox-east-long -166.251
bbox-north-lat 27.9628
bbox-south-lat 23.8831
bbox-west-long -175.958
contact-email NCEI.Info@noaa.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2017-03-18"}]
frequency-of-update asNeeded
graphic-preview-description Preview graphic
graphic-preview-file https://data.nodc.noaa.gov/cgi-bin/gfx?id=gov.noaa.nodc:0161170
graphic-preview-type PNG
guid gov.noaa.nodc:0161170
licence ["accessLevel: Public"]
metadata-date 2017-07-31T13:07:59
metadata-language eng
progress completed
resource-type dataset
responsible-party [{"name": "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-175.958, 23.8831], [-166.251, 23.8831], [-166.251, 27.9628], [-175.958, 27.9628], [-175.958, 23.8831]]]}
spatial-data-service-type
spatial-reference-system
spatial_harvester true
temporal-extent-begin 2015-07-31
temporal-extent-end 2015-08-19