Admiralty Inlet Hub-Height Turbulence Measurements from June 2012
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.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"019:20"
]
|
| contactPoint |
{
"fn": "Levi Kilcher",
"@type": "vcard:Contact",
"hasEmail": "mailto:levi.kilcher@nrel.gov"
}
|
| dataQuality |
true
|
| 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. |
| distribution |
[
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"@type": "dcat:Distribution",
"title": "Marine Energy Technology Symposium paper",
"format": "pdf",
"accessURL": "http://faculty.washington.edu/jmt3rd/Publications/Thomson_etal_GMREC-METS_2013_turbulencemooring.pdf",
"mediaType": "application/pdf",
"description": "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."
},
{
"@type": "dcat:Distribution",
"title": "DOLfYN library",
"format": "HTML",
"accessURL": "http://lkilcher.github.io/dolfyn/",
"mediaType": "text/html",
"description": "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."
},
{
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"title": "Admiralty Inlet Raw Data.vec",
"format": "vec",
"accessURL": "https://mhkdr.openei.org/files/49/AdmiraltyInlet_June2012.vec",
"mediaType": "application/octet-stream",
"description": "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"
},
{
"@type": "dcat:Distribution",
"title": "Admiralty Inlet 5min Averages.csv",
"format": "csv",
"accessURL": "https://mhkdr.openei.org/files/49/AdmiraltyInlet_June2012_Average5min.csv",
"mediaType": "text/csv",
"description": "This file contains 5 minute averages of the velocity, and the turbulence intensity."
},
{
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"title": "Admiralty Inlet Processed Data.h5",
"format": "h5",
"accessURL": "https://mhkdr.openei.org/files/49/AdmiraltyInlet_June2012_mc.h5",
"mediaType": "application/octet-stream",
"description": "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."
},
{
"@type": "dcat:Distribution",
"title": "Admiralty Inlet Matlab.mat",
"format": "mat",
"accessURL": "https://mhkdr.openei.org/files/49/AdmiraltyInlet_June2012_mc.mat",
"mediaType": "application/octet-stream",
"description": "This Matlab data file contains the key variables (u, urot, uacc, orientmat, Accel, AngRt) from the .h5 file, in Matlab format."
},
{
"@type": "dcat:Distribution",
"title": "Data Proccessing.py",
"format": "py",
"accessURL": "https://mhkdr.openei.org/files/49/process_data.py",
"mediaType": "application/octet-stream",
"description": "A Python script that utilizes the DOLfYN library to read the binary .vec file and produce the other files in this dataset."
}
]
|
| DOI | 10.15473/1245824 |
| identifier | https://data.openei.org/submissions/7759 |
| issued | 2012-06-18T06:00:00Z |
| keyword |
[
"ADCP",
"ADV",
"AWAC",
"Acoustic Doppler Current Profiler",
"Acoustic Doppler Velocimeter",
"Acoustic Wave And Current Profiler",
"Admiralty Head",
"Admiralty Inlet",
"DOLfYN",
"Hydrokinetic",
"IMU",
"MHK",
"Marine",
"Matlab",
"Nortek Vector",
"Puget Sound",
"TTM",
"Tidal Turbulence Mooring",
"Turbulence",
"USA",
"WA",
"Washington",
"code",
"effectiveness",
"energy",
"field test",
"inertial measurement unit",
"lateral",
"mooring",
"ocean",
"power",
"processed data",
"python",
"raw data",
"resource",
"safety",
"stream-wise",
"velocimetry",
"velocity",
"vertical",
"water velocity"
]
|
| landingPage | https://mhkdr.openei.org/submissions/49 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2021-10-13T17:23:27Z |
| programCode |
[
"019:009"
]
|
| projectLead | Alison LaBonte |
| projectNumber | FY12 AOP 1323 |
| projectTitle | Ocean Current, River and Tidal Hydrology for Inflow Modeling |
| publisher |
{
"name": "National Renewable Energy Laboratory",
"@type": "org:Organization"
}
|
| spatial |
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|
| title | Admiralty Inlet Hub-Height Turbulence Measurements from June 2012 |
