These CTDs from Sea-Bird Electronics (SBE) use modular sensors and are pumped with SBE 5 pump(s). Data are normally collected and processed with Sea-Bird's Seasoft software.
SBE 911+ High quality ducted/pumped system with digiquartz pressure sensor and dual temperature and conductivity sensors. 6800 meter capability and data rate of 24 scans per second.
SBE 25 Sealogger Ducted/pumped system with internal data recording or data "up the wire". 6800 meter capability and selectable data rate up to 8 scans per second.
The transducers are mounted at 5 meters (nominal) depth. Ship's position is provided by GPS, ship's heading is provided by the ship's
steering gyro compass as well as Magellan ADU5 and Ashtech ADU2 attitude determining GPS systems.
Data are normally collected with the UHDAS acquisition system which allows simultaneous operation
of both ADCPs. Initial processing and browser based real-time data displays are provided.
See the final report for the comparison between the 150kHz narrow bandwidth ADCP and the 75kHz Ocean Surveyor which took place on the ENDEAVOR in February 2001.
B.E.S.S. 1 m2 Multiple Opening Closing Environmental Sampling System (MOCNESS)
The MOCNESS is an instrumented biological sampling system with multiple opening and closing nets that allows investigators
to collect samples at discrete depths. A variety of sensors and nets can be used with the MOCNESS. The MOCNESS has a separate
day rate and a marine technician will be provided to operate the system if needed. Standard net mesh sizes are 150, 202 and 333 microns.
This system can be requested on other UNOLS vessels and must be scheduled well in advance of a cruise.
GMI ScanFish (Mk II) is a towed, undulating wing incorporating a pumped and ducted SBE911+ CTD. It provides continuous along track sampling as deep as 180 meters at speeds up to 10 knots.
The Sea-Bird SBE11 deck unit 9600 baud communication link is enabled.
Routine logging and display of navigation, meteorology and sea surface data. Real time distribution via serial RS-232 and TCP/IP.
Logging is done with NOAA's SCS (Scientific Computer System) program at intervals or 10 seconds or less.
Air Temperature and Relative Humidity R.M. Young model 41372VC with gill multi-plate radiation shield
Pilot house roof, 10.3 meters above waterline
Temperature: 1000 ohm platinum RTD, accuracy is ± 0.3° C at 0° C
Humidity: Capacitive Polymer, accuracy is 3% from 0 to 100% humidity
Barometric Pressure R.M. Young model 61201
Main deck, aft of main lab, 3.5 meters above waterline
Accuracy is ± 1.0 mB, range is 800 to 1100 mB
Wind Speed and Direction
Two R.M. Young model 5103
Upper mast platform, port and starboard, 18.4 meters above waterline
Speed accuracy is ± 0.3 m/s, range is 0 to 60 m/s
Direction accuracy is ± 3°
Precipitation - last hour, last 24 hours R.M. Young model 50202, heated
02 Deck, aft of pilot house, 6.2 meters above waterline
Accuracy is ± 1 mm, threshold is 1 mm
Solar Radiation - Short Wave Eppley PSP (Precision Spectral Pyranometer)
Top of crane cab, 8.0 meters above waterline
Temperature dependance: ± 1%, -20° to 40° C
Linearity: ± 0.5%, 0 to 2800 watts/m2
Sensitivity ~9 microvolts per watt/m2
Solar Radiation - Long Wave Eppley PIR (Precision Inrared Radiometer)
Top of crane cab, 8.0 meters above waterline
Temperature dependance: ± 2%, -20° to 40° C
Linearity: ± 1%, 0 to 700 watts/m2
Sensitivity ~4 microvolts per watt/m2
Sea Surface Temperature
Two RTD probes, one below the keel at 5 meters, the other pressed
to the hull inside the ship at one meter
SBE 3 digital thermometer
Navigation - position, course and speed made good
Four GPS receivers, One differential, two WAAS, one P-Code
Vessel heading
Two gyro compasses and an attitude determining Ashtech ADU2 GPS system.
Bathymetry
Depth from Knudsen 320BR echosounder using 12kHz and/or 3kHz, full ocean
Depth from RD Instruments' 75 kHz Ocean surveyor ADCP, to 800 meters
A Knudsen 320 BR dual frequency echosounder and a Knudsen 3260 chirp echosounder are standard equipment on the vessel.
In addition to a real time display, data can be output to an EPC graphics recorder and disk file.
Real time water depths are available via serial RS-232 interface or UDP broadcast in NMEA0183 format.