Description
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.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Marine Energy Technology Symposium paper | 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. | Open resource | |
| Data Proccessing.py | Unknown | A script that utilizes the DOLfYN library to read the binary .vec files, and produce the other files in this dataset. | Open resource |
| StableMoor Nose 5min Averages.csv | CSV | StableMoor nose mode. This file contains 5minute averages of the velocity, and the turbulence intensity. | Open resource |
| StableMoor Nose Processed Data.h5 | Unknown | StableMoor 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. | Open resource |
| StableMoor Nose Matlab.mat | MAT | StableMoor 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. | Open resource |
| StableMoor Nose Raw Data.VEC | Vectrex | StableMoor 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 | Open resource |
| StableMoor Port ADV 5min Averages.csv | CSV | StableMoor wing mode, Port ADV. This file contains 5-minute averages of the velocity, and the turbulence intensity. | Open resource |
| StableMoor Port ADV Processed Data.h5 | Unknown | StableMoor 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. | Open resource |
| StableMoor Port ADV Matlab.mat | MAT | StableMoor 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. | Open resource |
| StableMoor Port ADV Raw Data.VEC | Vectrex | StableMoor '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 | Open resource |
| StableMoor Starboard ADV 5min Averages.csv | CSV | StableMoor wing mode, Starboard ADV. This file contains 5minute averages of the velocity, and the turbulence intensity. | Open resource |
| StableMoor Starboard ADV Processed Data.h5 | Unknown | StableMoor 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. | Open resource |
| StableMoor Starboard ADV Matlab.mat | MAT | StableMoor 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. | Open resource |
| StableMoor Starboard ADV Raw Data.VEC | Vectrex | StableMoor 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 | Open resource |
| TTM 5min Averages.csv | CSV | TTM. This file contains 5minute averages of the velocity, and the turbulence intensity. | Open resource |
| TTM Processed Data.h5 | Unknown | TTM. 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. | Open resource |
| TTM Matlab.mat | MAT | TTM. 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. | Open resource |
| TTM Raw Data.VEC | Vectrex | TTM. 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 | Open resource |
Tags
- acceleration
- admiralty-inlet
- adv
- angular-rate
- buoy
- code
- data
- deepwater-buoyancy
- dolfyn
- effectiveness
- energy
- field-test
- hydrokinetic
- imu
- marine
- matlab
- measurement
- measurements
- mhk
- mid-depth-turbulence
- nortek-vector
- nrel
- ocean
- pnnl
- power
- pre-processed
- processed-data
- puget-sound
- python
- raw-data
- resource
- safety
- stablemoor
- technology
- tidal-turbulence-mooring
- ttm
- turbulence
- university-of-washington
- vec
- vector-files
- water-velocity