CRED shallow Conductivity-Temperature-Depth (CTD) casts are vertical profiles (max 30 meter depth, downcast only) of temperature, conductivity and pressure. Data are collected at select nearshore locations, both around islands or banks and within lagoons. Data processing was performed using Seabird Instrument's SeaSoft SBE Data Processing Software (http://www.seabird.com/software/SBEDataProcforWindows.htm). Data format is discreet, tabular (formatted, space delimited ASCII) files for each profile, with a full header as provided by SeaSoft. Raw file extension is HEX, processed file extension is CNV. The header contains latitude, longitude and other location information, as well as all data processing steps and settings. All dates and times are UTC. All positions are WGS84 decimal degrees. Contact Coral Reef Ecosystem Division (CRED), NOAA Pacific Island Fisheries Science Center for more information. https://www.fisheries.noaa.gov/pacific-islands/ecosystems/coral-reefs-pacific
These data were collected for coral reef ecosystem research.
7 profiling CTD casts were conducted near Laysan Island, Northwestern Hawaiian Islands (Papahanaumokuakea Marine National Monument) during cruise HI0809 with the following instrument configuration. Primary CTD Manufacturer: Sea-Bird Electronics, Inc., Primary CTD Model: SBE 19plus SEACAT Profiler CTD with Druck Strain Gauge Pressure Sensor (600m Max Depth), Primary CTD Serial Number: 19P398464818, Primary CTD Specifications: Temperature (Degrees Celsius): Measurement Range -5 to +35; Initial Accuracy 0.005; Typical Stability 0.0002 per month; Resolution 0.0001; Calibration +1 to +32 (measurement outside these ranges may be at slightly reduced accuracy due to extrapolation errors). Conductivity (Siemens/meter): Measurement Range 0 - 9; Initial Accuracy 0.0005; Typical Stability 0.0003 per month; Resolution 0.00005 (most oceanic water; resolves 0.4 ppm in salinity); Calibration 0 to 9 (physical calibration over range 2.6 to 6 S/m, plus zero conductivity (air) measurement outside these ranges may be at slightly reduced accuracy due to extrapolation errors). Pressure - Strain Gauge Sensor (meters): Measurement Range 0 to 600; Initial Accuracy 0.6; Typical Stability 0.3 per month; Resolution 0.012; Calibration Ambient pressure to full scale range in 5 steps.. Auxiliary Sensor Volt 0 Manufacturer: Sea-Bird Electronics, Inc., Auxiliary Sensor Volt 0 Model: SBE 43 Dissolved Oxygen Sensor (600m Max Depth), Auxiliary Sensor Volt 0 Serial Number: 431479, Auxiliary Sensor Volt 0 Specifications: Dissolved Oxygen: Measurement Range 120% of surface saturation in all natural waters; Initial Accuracy 2% of saturation; Typical Stability 0.5% per 1000 hours (clean membrane).. Auxiliary Sensor Volt 1 Manufacturer: NONE, Auxiliary Sensor Volt 1 Model: NONE, Auxiliary Sensor Volt 1 Serial Number: NONE, Auxiliary Sensor Volt 1 Specifications: NONE. Auxiliary Sensor Volt 2 Manufacturer: WET Labs, Auxiliary Sensor Volt 2 Model: C-Star Transmissometer (RED - 660nm), Auxiliary Sensor Volt 2 Serial Number: CST546PR, Auxiliary Sensor Volt 2 Specifications: Pathlength: 25 cm. Wavelength: 660 nm; Bandwidth ~20. Time constant: 0.167 seconds. Temperature Error: 0.02 percent F.S./deg C. Rated depth: 600 meters. Temperature range: 0 to 30 deg C.. Auxiliary Sensor Volt 3 Manufacturer: NONE, Auxiliary Sensor Volt 3 Model: NONE, Auxiliary Sensor Volt 3 Serial Number: NONE, Auxiliary Sensor Volt 3 Specifications: NONE.
Resource Description: HI0809_LAY###.cnv
These oceanographic data are PRELIMINARY data and have not been screened for accuracy. NOAA can not be held liable for use of these data in a manner other than for perusal of preliminary oceanographic data for scientific research on coral reefs ecosystems.
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These oceanographic data are PRELIMINARY data and have not been screened for accuracy. NOAA can not be held liable for use of these data in a manner other than for perusal of preliminary oceanographic data for scientific research on coral reefs ecosystems. Disclaimer - NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
formatted, space delimited ASCII file