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CTD Hydro Nutrients Data - EN496
BCO-DMO Processing Notes Original file: "EN496-Hydro_Nutrients.xls" contributed by Joseph Montoya - Latitude/Longitude for Op_Number inserted from CTD Station data - Parameter names edited to conform to BCO-DMO parameter naming conventions
Benthos model PSA-916
An instrument that measures height above a fixed surface. The data can be used to map ocean-surface topography and generate gridded surface height fields.
CTD Sea-Bird SBE 911plus
The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics
Wet Labs WETStar flow through
A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.
A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.
Biospherical Instruments models QSP200L/QSR-240
A PAR sensor measures photosynthetically available (or active) radiation. The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis. This instrument name is used when specific type, make and model are not known.
SBE 43 Dissolved Oxygen Sensor
The Sea-Bird SBE 43 dissolved oxygen sensor is a redesign of the Clark polarographic membrane type of dissolved oxygen sensors. more information from Sea-Bird Electronics
SBE model 3
The SBE-3 is a slow response, frequency output temperature sensor manufactured by Sea-Bird Electronics, Inc. (Bellevue, Washington, USA). It has an initial accuracy of +/- 0.001 degrees Celsius with a stability of +/- 0.002 degrees Celsius per year and measures seawater temperature in the range of -5.0 to +35 degrees Celsius. more information from Sea-Bird Electronics
SBE model 4
The Sea-Bird SBE-4 conductivity sensor is a modular, self-contained instrument that measures conductivity from 0 to 7 Siemens/meter. The sensors (Version 2; S/N 2000 and higher) have electrically isolated power circuits and optically coupled outputs to eliminate any possibility of noise and corrosion caused by ground loops. The sensing element is a cylindrical, flow-through, borosilicate glass cell with three internal platinum electrodes. Because the outer electrodes are connected together, electric fields are confined inside the cell, making the measured resistance (and instrument calibration) independent of calibration bath size or proximity to protective cages or other objects.
Wet Labs C-Star 25-cm
A transmissometer measures the beam attenuation coefficient of the lightsource over the instrument's path-length. This instrument designation is used when specific manufacturer, make and model are not known.
Wet Labs ECO Chlorophyll Fluorometer
The Environmental Characterization Optics (ECO) series of single channel fluorometers delivers both high resolution and wide ranges across the entire line of parameters using 14 bit digital processing. The ECO series excels in biological monitoring and dye trace studies. The potted optics block results in long term stability of the instrument and the optional anti-biofouling technology delivers truly long term field measurements. more information from Wet Labs
Operation Number (Stn.Evt)
Bottle
Date UTC
Time UTC
Station Latitude (South is negative)
Station Longitude (West is negative)
Salinity 0
Salinity 1
Sigma-t 0 Density
Sigma-t 1 Density
Oxygen Saturation
Oxygen 0 SBE 43
Oxygen 0 SBE 43 SDev
Oxygen 1 SBE 43
Oxygen 1 SBE 43 SDev
Potential Temp 0 - ITS-90
Potential Temp 0 - ITS-90 SDev
Potential Temp 1 - ITS-90
Potential Temp 1 - ITS-90 SDev
Sound Velocity
Sound Velocity SDev
Sound Velocity 1
Sound Velocity 1 SDev
Scan
Scan SDev
Julian Time
Julian Time SDev
Elapsed Time
Elapsed Time SDev
Pressure
Pressure SDev
Depth
Depth SDev
Temp 0 - ITS-90
Temp 0 - ITS-90 SDev
Temp 1 – ITS-90
Temp 1 – ITS-90 SDev
T2-T190C
T2-T190C-SD
Conductivity 0
Conductivity 0 SDev
Conductivity 1
Conductivity 1 SDev
C2-C1S/m
C2-C1S/m-SD
Voltage 0
Voltage 0 SDev
Beam Attenuation
Beam Attenuation SDev
Beam Transmission
Beam Transmission SDev
Voltage 2
Voltage 2 SDev
Nominal Depth
Mean PO4
Mean Si
Mean NO3+NO2
Mean NH4
Mean N*
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