Cruise data distribution for SKQ201814S

Platform:
  Name: R/V Sikuliaq
  Operator: UAF
  IMO Number: 9578945
  ICES Code: 33BI
  Call Sign: WDG7520

This archive contains all the underway data collected from the
permanently installed sensors on R/V Sikuliaq. Data collected
from science hosted sensors are not included. 

A brief description of the datasets are as follows:
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 * adcp

  Two Doppler sonars for measuring ocean currents, both manufactured by 
  Teledyne R.D.Instruments. The two instruments are both Ocean Surveyor 
  model (phased array) transducers, with frequencies of 150kHz and 75kHz. 
  Data acquisition and processing is performed by UHDAS, a software 
  package written and maintained at the University of Hawaii.
  
  Note: A Workhorse 300kHz ADCP is installed on the ship's centerboard,
		and integrated into UHDAS and K-sync.
  
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 * ctd
  
  SBE9/11plus CTD system - frequency channels include dual temperature, dual
  conductivity, and pressure sensors. Auxiliary sensors include
  fluorometer, dissolved oxygen, transmissometer, PAR, and altimeter.
  Science supplied sensors include secondary dissolved oxygen, SUNA,
  LISST-Deep, and UVP.

  Note: Basic batch processing is performed on the raw data to provide CNV
		files, 1-db bin averages, profile plots, and bottle summaries
		when applicable.

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 * ek60

  Simrad scientific echo sounder system designed for fisheries research.
  Five split-beam transducers (18, 38, 70, 120, and 200 kHz) are mounted
  under the ship's retractable centerboard. Each channel is connected to
  a General Purpose Transceiver (GPT). EK80 software is used to acquire data.
  
  Note: Target sphere calibration last performed 3 Feb, 2018 in San Diego Bay.

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 * em302

  Kongsberg multibeam echo sounder for ocean bottom mapping. Operates in 
  the 32 kHz range which is optimal for midwater depths.

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 * em710

  Kongsberg multibeam echo sounder for ocean bottom mapping. Operates in
  the 70-100 kHz range which is optimal for shallow depths (< 2000m).

  Note:  The em710 was not run during this cruise.
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 * knudsen

  12KHz Chirp 3260 scientific echo sounder.
  
  Note:  The knudsen was not run during this cruise.
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 * lds
  
  The LDEO Data System(LDS). LDS logs all the ASCII serial data generated by 
  Sikuliaq's underway sensors such as GPS navigation, gravity, weather,
  and surface water properties. Please refer to the document 
  lds/docs/format_descriptions_SKQ201813S.txt for a list and description of
  all the datasets collected.
  
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 * r2r

  R2R event logger(ELOG). Science applicable events logged by the science
  watchstanders.

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 * science

  TBD

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 * soundguard

  SoundGuard is a data acquisition system for the evaluation of underwater
  noise from six hydrophones (fs = 102.4kHz) built into the ship's hull.

  Note: Soundguard data was not recorded during this cruise.
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 * topaz

  The Kongsberg TOPAS PS 18 Parametric Sub-Bottom Profiler is a narrow beam, 
  high resolution, and full ocean depth sub-bottom profiler. The primary
  application of the TOPAS is to do imaging of sediment layers and buried
  objects.

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 * xbt
 
  Expendable Bathythermograph (XBT) probes are used to measure water
  temperature profiles while the ship is underway. The T7 probes used
  on Sikuliaq are limited to a max depth of 760 meters. The data logging
  system is the Sippican MK21.

  Note:  No xbts were used during this cruise.