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Sea-Bird Scientific Thetis Profiler

The Thetis Profiler is a submersible vertically profiling platform for use in coastal marine and fresh water environments. The purpose of the platform is to sample the water column distributions of physical, biological, chemical and optical propertie…

  • Sea-Bird Scientific Thetis Profiler
Sea-Bird Scientific
13431 NE 20th Street
98005 Bellevue
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Description

The Thetis Profiler is a submersible vertically profiling platform for use in coastal marine and fresh water environments. The purpose of the platform is to sample the water column distributions of physical, biological, chemical and optical properties at a fixed geographical location over extended periods of time.

Specifications

  • Type
    Moored buoy
  • Year of introduction
    2014
  • Length [m]
    0.7875
  • Width [m]
    0.7875
  • Height [m]
    2.12
  • Antenna/mast height [m]
    2
  • Hull material
    6061-T6 Aluminum
  • Structure Material
    6061-T6 Aluminum, Titanium,316 Stainless Steel,Acetal, HDPE
  • Ballast
    10 kg (25 lb) net buoyancy
  • Weight [kg]
    159
  • Battery
    Y
  • Battery type
    Rechargeable Lithium-Ion
  • Solar panels
    No
  • Max. depth rating of sensors
    350
  • Water depth
    Yes
  • Water temperature
    Yes
  • Water salinity
    Yes
  • Water turbidity
    Yes
  • Chromophoric dissolved organic matter (CDOM)
    Yes
  • Nitrate
    optional
  • Dissolved oxygen
    optional
  • Chlorophyll
    Yes
  • Underwater radiance
    optional
  • Sound Velocity
    optional
  • Other sensors or additional information
    Base System Instruments: SBE49 (CTD), ECO-BBFL2w, PAR. Base System: Frame and flotation, winch, morring controllor, Battery pack, GPS & antenna, strobe. Software: Host, file processor, mission planning
  • Wave frequency
    optional
  • Wave height
    optional
  • Wave period
    optional
  • Wave direction
    Optional
  • Current speed
    optional
  • Current direction
    optional
  • Navigation lights
    Yes
  • Navigation lights description
    Orange colored strobe beacon for nighttime surfacing.
  • Other sensors or additional information
    Sea-Bird Scientific Sensors: ECO, ac-s, C-Star, radiometers, SBE49, SUNA V2, SBE 43/63Nortek Aquadopp
  • GPS sensor
    Y
  • Data logger description
    Custom designed data logger and controller.
  • Acoustic communication
    No
  • Iridium/Satellite communication
    optional
  • Cellular comunication
    optional
  • UHF/VHF communication
    Yes
  • Other sensors or additional information
    The base profiler comes with Freewave UHF line-of-sight communications. Cellular and Iridium communications are optional (where laws allow). Only one type of communication can be installed on the profiler.
  • Web based control and tracking
  • Type of mission planning software
    Windows 7 and newer interface
  • Type of postprocessing software
    Windows 7 and newer interface
  • Air temperature
    No
  • Air humidity
    No
  • Barometric pressure
    No
  • Wind speed
    No
  • Wind direction
    No
  • Solar radiation
    No
  • Operating temperature: min. [°C]
    0
  • Operating temperature: max. [°C]
    40
  • Deployment methods
    Ship
  • Min deployment depth [m]
    3
  • Max deployment depth [m]
    100
  • Min weight of mooring
    Deadweight anchor recommendations: Use a single lump of steel. Weight in air should be 45 to 60 kg (100 to 130 lb). (In water, steel weighs about 78% of its weight in air.)
  • Max weight of mooring
    All-chain anchor recommendations: Use 12 m (40 ft) of 16 mm (5/8”) galvanized steel chain. This will weigh about 6 kg/m (4 lb/ft) in air. Weight in water will be about 4.7 kg/m (3.1 lb/ft). Assuming your profiler is 9 kg buoyant, it will lift 1.9 m of chain off the bottom under static conditions. When a wave orbital pulls the profiler up, it will gradually pull additional chain from the bottom. As the orbital passes, the excess chain will gently return the profiler to an equilibrium position. Actual chain weight will vary depending on the grade. Verify chain weight per length with your chain supplier.
  • Max wave conditions [m]
    5
  • Max operating time
    Depends upon Instrument payload, depth, and profiling period.
  • Training facilities
    Yes, optional
  • Main applications
    The Thetis Profiler is a submersible vertically profiling platform for use in coastal marine and fresh water environments.
  • Distinguishable features:
    • Modular, self-contained, winch-driven profiling platform • Integrated control, power, and telemetry systems • Full suite of available physical, chemical and biological sensors

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