Admiralty Inlet Hub-Height Turbulence Measurements from June 2012

Description

This data is from measurements at Admiralty Head, in Admiralty Inlet. The measurements were made using an IMU equipped ADV mounted on a mooring, the 'Tidal Turbulence Mooring' or 'TTM'. The inertial measurements from the IMU allows for removal of mooring motion in post processing. The mooring motion has been removed from the stream-wise and vertical velocity signals (u, w). The lateral (v) velocity may have some 'persistent motion contamination' due to mooring sway. The ADV was positioned 11m above the seafloor in 58m of water at 48.1515N, 122.6858W. Units ------ - Velocity data (_u, urot, uacc) is in m/s. - Acceleration (Accel) data is in m/s^2. - Angular rate (AngRt) data is in rad/s. - The components of all vectors are in 'ENU' orientation. That is, the first index is True East, the second is True North, and the third is Up (vertical). - All other quantities are in the units defined in the Nortek Manual. Motion correction and rotation into the ENU earth reference frame was performed using the Python-based open source DOLfYN library (linked in resources). Details on motion correction can be found there. For additional details on this dataset see the included Marine Energy Technology Symposium paper.

Resources

Name Format Description Link
0 A Python script that utilizes the DOLfYN library to read the binary .vec file and produce the other files in this dataset. https://mhkdr.openei.org/files/49/process_data.py
8 This file contains 5 minute averages of the velocity, and the turbulence intensity. https://mhkdr.openei.org/files/49/AdmiraltyInlet_June2012_Average5min.csv
75 This Matlab data file contains the key variables (u, urot, uacc, orientmat, Accel, AngRt) from the .h5 file, in Matlab format. https://mhkdr.openei.org/files/49/AdmiraltyInlet_June2012_mc.mat
0 This file contains a 'lightly processed' version of the raw data in hdf5 format. This file can be read directly by the DOLfYN library's 'load' function, or using other hdf5 I/O tools such as HDFView. https://mhkdr.openei.org/files/49/AdmiraltyInlet_June2012_mc.h5
33 Additional details on this dataset available through the Marine Energy Technology Symposium paper, see the 'Tidal Turbulence measurements from a compliant mooring', Thompson et. al. 2013. http://faculty.washington.edu/jmt3rd/Publications/Thomson_etal_GMREC-METS_2013_turbulencemooring.pdf
64 This is the full binary Nortek-format data file. Nortek provides tools for reading this file and converting it to other formats, or the DOLfYN library has tools for reading it. For information on this data format see Nortek's 'System Integration Manual' available at: http://www.nortek-as.com/en/support/application-development https://mhkdr.openei.org/files/49/AdmiraltyInlet_June2012.vec
21 A library for oceanographic doppler instruments such as Acoustic Doppler Profilers (ADPs, ADCPs) and Acoustic Doppler Velocimeters (ADVs). This library was used for motion correction and rotation into the ENU earth reference frame. http://lkilcher.github.io/dolfyn/

Tags

  • awac
  • dolfyn
  • processed-data
  • hydrokinetic
  • effectiveness
  • nortek-vector
  • wa
  • admiralty-head
  • inertial-measurement-unit
  • stream-wise
  • adcp
  • admiralty-inlet
  • mhk
  • matlab
  • ttm
  • lateral
  • mooring
  • safety
  • adv
  • velocimetry
  • marine
  • turbulence
  • acoustic-wave-and-current-profiler
  • ocean
  • python
  • water-velocity
  • tidal-turbulence-mooring
  • power
  • code
  • washington
  • acoustic-doppler-velocimeter
  • usa
  • vertical
  • acoustic-doppler-current-profiler
  • imu
  • velocity
  • puget-sound
  • field-test
  • raw-data
  • resource
  • energy

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