Admiralty Inlet Advanced Turbulence Measurements: May 2015

This data is from measurements at Admiralty Head, in Admiralty Inlet (Puget Sound) in May of 2015. The measurements were made using Inertial Motion Unit (IMU) equipped ADVs mounted on a 'StableMoor' (Manufacturer: DeepWater Buoyancy) buoy and a Tidal Turbulence Mooring (TTM). These platforms position ADV heads above the seafloor to make mid-depth turbulence measurements. The inertial measurements from the IMU allows for removal of mooring motion in post processing.

The mooring and buoy motion has been removed from the stream-wise and vertical velocity signals (u, w). The lateral (v) velocity has some 'persistent motion contamination' due to mooring sway.

The TTM was deployed with one ADV, it's position was: 48 09.145', -122 41.209'

The StableMoor was deployed twice, the first time it was deployed in 'wing-mode' with two ADVs ('Port' and 'Star') at: 48 09.166', -122 41.173'

The second StableMoor deployment was in 'Nose' mode with one ADV at: 48 09.166', -122 41.174'

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 (http://lkilcher.github.io/dolfyn/). Details on motion correction can be found there.

Additional details on TTM measurements at this site can be found in the included Marine Energy Technology Symposium paper.
- Originated 05/18/2015 by National Renewable Energy Laboratory.

18 Resources

 NameSizeTypeResource Description
 process_data.py5866codeA script that utilizes the DOLfYN library to read the binary .vec files, and produce the other files in this dataset.
 StableMoor_Port_NREL02_May2015.VEC131939385dataStableMoor 'wing mode' Port ADV. This is the full binary Nortek-format data file. For information on this data format see Nortek's 'System Integration Manual' available at: http://www.nortek-as.com/en/support/application-development
 StableMoor_Star_NREL01_May2015.VEC131654217dataStableMoor wing mode, Starboard ADV. This is the full binary Nortek-format data file. For information on this data format see Nortek's 'System Integration Manual' available at: http://www.nortek-as.com/en/support/application-development
 StableMoor_Nose_NREL02_May2015.VEC161514256dataStableMoor nose mode. This is the full binary Nortek-format data file. For information on this data format see Nortek's 'System Integration Manual' available at: http://www.nortek-as.com/en/support/application-development
 TTM_NREL03_May2015.VEC268133188dataTTM. This is the full binary Nortek-format data file. For information on this data format see Nortek's 'System Integration Manual' available at: http://www.nortek-as.com/en/support/application-development
 StableMoor_Port_NREL02_May2015_Average5min.csv13713dataStableMoor wing mode, Port ADV. This file contains 5minute averages of the velocity, and the turbulence intensity.
 StableMoor_Nose_NREL02_May2015_Average5min.csv16358dataStableMoor nose mode. This file contains 5minute averages of the velocity, and the turbulence intensity.
 StableMoor_Star_NREL01_May2015_Average5min.csv13697dataStableMoor wing mode, Starboard ADV. This file contains 5minute averages of the velocity, and the turbulence intensity.
 StableMoor_Port_NREL02_May2015_mc.h5147574138dataStableMoor wing mode, Port ADV. 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. Time is available in MatPlotLib time (mpltime) format.
 StableMoor_Star_NREL01_May2015_mc.h5145724349dataStableMoor wing mode, Starboard ADV. 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. Time is available in MatPlotLib time (mpltime) format.
 StableMoor_Star_NREL01_May2015_mc.mat173995503dataStableMoor wing mode Starboard ADV. This file contains the key variables (u, urot, uacc, orientmat, Accel, AngRt) from the .h5 file, in Matlab format. Time is available in Matlab 'datenum' format.
 StableMoor_Nose_NREL02_May2015_mc.h5173882872dataStableMoor nose mode. 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. Time is available in MatPlotLib time (mpltime) format.
 StableMoor_Port_NREL02_May2015_mc.mat174313942dataStableMoor wing mode Port ADV. This file contains the key variables (u, urot, uacc, orientmat, Accel, AngRt) from the .h5 file, in Matlab format. Time is available in Matlab 'datenum' format.
 TTM_NREL03_May2015_Average5min.csv29583dataTTM. This file contains 5minute averages of the velocity, and the turbulence intensity.
 StableMoor_Nose_NREL02_May2015_mc.mat207882707dataStableMoor nose mode. This file contains the key variables (u, urot, uacc, orientmat, Accel, AngRt) from the .h5 file, in Matlab format. Time is available in Matlab 'datenum' format.
 TTM_NREL03_May2015_mc.h5318694785dataTTM. 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. Time is available in MatPlotLib time (mpltime) format.
 TTM_NREL03_May2015_mc.mat378421229dataTTM. This file contains the key variables (u, urot, uacc, orientmat, Accel, AngRt) from the .h5 file, in Matlab format. Time is available in Matlab 'datenum' format.
 Marine Energy Technology Symposium paperimage_documentAdditional 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.

Keywords

MHK Marine Hydrokinetic energy power Turbulence Admiralty Inlet Puget Sound water velocity DeepWater Bouyancy Tidal Turbulence Mooring TTM mid-depth turbulence measurements StableMoor DOLfYN Matlab data

Submitted

•  SEP  • 23 2015

National Renewable Energy Laboratory

by , 303.384.7192

Authors

  • Levi Kilcher, National Renewable Energy Laboratory

License

Creative Commons Attribution 4.0

Cite this dataset:

National Renewable Energy Laboratory. (2015). Admiralty Inlet Advanced Turbulence Measurements: May 2015 [data set]. Retrieved from https://mhkdr.openei.org/submissions/51. https://dx.doi.org/10.15473/1245826

About this dataset

51
DOI 10.15473/1245826
status Publicly accessible
last updated a month ago

DOE Project

FY16 AOP 132401 Advanced Turbulence Measurement Techniques for Current Device Field Deployments Collab with UW

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