Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Tidal Energy Resource Characterization, Bottom Lander Measurements, Cook Inlet, AK, 2021

Published by National Renewable Energy Laboratory | Department of Energy | Metadata Last Checked: January 27, 2026 | Last Modified: 2024-02-14T17:05:27Z
These datasets are from tidal resource characterization measurements collected on the Terrasond High Energy Oceanographic Mooring (THEOM) from 1 July 2021 to 30 August 2021 (60 days) in Cook Inlet, Alaska. The lander was deployed at 60.7207031 N, 151.4294998 W in ~50 m of water. The dataset contains raw and processed data from the following two instruments: 1. A Nortek Signature 500 kHz acoustic Doppler current profiler (ADCP). Data were recorded in 4 Hz in the beam coordinate system from all 5 beams. Processed data has been averaged into 5 minutes bins and converted to the East-North-Up (ENU) coordinate system. 2. A Nortek Vector acoustic Doppler velocimeter (ADV). Data were recorded at 8 Hz in the beam coordinate system. Processed data has been averaged into 5 minutes bins and converted to the Streamwise - Cross-stream - Vertical (Principal) coordinate system. Turbulence statistics were calculated from 5-minute bins, with an FFT length equal to the bin length, and saved in the processed dataset. Data was read and analyzed using the DOLfYN (version 1.0.2) python package and saved in MATLAB (.mat) and netCDF (.nc) file formats. Files containing analyzed data (".b1") were standardized using the TSDAT (version 0.4.2) python package. NetCDF files can be opened using DOLfYN (e.g., `dat = dolfyn.load(''*.nc")`) or the xarray python package (e.g. `dat = xarray.open_dataset("*.nc"). All distances are in meters (e.g., depth, range, etc), and all velocities in m/s. See the DOLfYN documentation linked in the submission, and/or the Nortek documentation for additional details.

Find Related Datasets

Click any tag below to search for similar datasets

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 These datasets are from tidal resource characterization measurements collected on the Terrasond High Energy Oceanographic Mooring (THEOM) from 1 July 2021 to 30 August 2021 (60 days) in Cook Inlet, Alaska. The lander was deployed at 60.7207031 N, 151.4294998 W in ~50 m of water. The dataset contains raw and processed data from the following two instruments: 1. A Nortek Signature 500 kHz acoustic Doppler current profiler (ADCP). Data were recorded in 4 Hz in the beam coordinate system from all 5 beams. Processed data has been averaged into 5 minutes bins and converted to the East-North-Up (ENU) coordinate system. 2. A Nortek Vector acoustic Doppler velocimeter (ADV). Data were recorded at 8 Hz in the beam coordinate system. Processed data has been averaged into 5 minutes bins and converted to the Streamwise - Cross-stream - Vertical (Principal) coordinate system. Turbulence statistics were calculated from 5-minute bins, with an FFT length equal to the bin length, and saved in the processed dataset. Data was read and analyzed using the DOLfYN (version 1.0.2) python package and saved in MATLAB (.mat) and netCDF (.nc) file formats. Files containing analyzed data (".b1") were standardized using the TSDAT (version 0.4.2) python package. NetCDF files can be opened using DOLfYN (e.g., `dat = dolfyn.load(''*.nc")`) or the xarray python package (e.g. `dat = xarray.open_dataset("*.nc"). All distances are in meters (e.g., depth, range, etc), and all velocities in m/s. See the DOLfYN documentation linked in the submission, and/or the Nortek documentation for additional details.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "DOLfYN Documentation",
    "format": "HTML",
    "accessURL": "https://dolfyn.readthedocs.io/en/latest/",
    "mediaType": "text/html",
    "description": "DOLfYN is the Doppler Oceanography Library for python. This webpage includes documentation for the DOLfYN library."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 1 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210701.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from the Nortek Signature 500 for week 1 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 1 Raw netCDF Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210701.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 1 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 2 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210708.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 2 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 2 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210708.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 2 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 3 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210715.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 3 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 3 Raw netCDF Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210715.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 3 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 4 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210722.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 4 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 4 Raw netCDF Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210722.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 4 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 5 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210729.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 5 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 5 Raw netCDF Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210729.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 5 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 6 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210805.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 6 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 6 Raw netCDF Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210805.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 6 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 7 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210812.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 7 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 7 Raw netCDF Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210812.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 7 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 8 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210819.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 8 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 8 Raw netCDF Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210819.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 8 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). 
Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 9 Raw MATLAB Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210826.mat.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 9 of deployment in MATLAB file format. Includes current and tidal testing data from Cook Inlet, Alaska."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Sig500 Week 9 Raw netCDF Data  .zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.20210826.nc.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Signature 500 for week 9 of deployment in netCDF file format. Data was written and can be read using the DOLfYN python package (> v1.0.0). Includes current and tidal testing data from Cook Inlet, Alaska. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "Processed Nortek Signature500 ADCP Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.b1.20210701.zip",
    "mediaType": "application/zip",
    "description": "Processed Nortek Signature500 data from THEOM bottom lander. Data was averaged into 5 minute bins and saved in both netCDF and MATLAB file formats using the DOLfYN python package (v1.0.2). Dataset was standardized using the TSDAT python package (v0.4.2)."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Raw Nortek ADCP Data - ad2cp.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Sig500.b1.20210701.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Sig500 ADCP deployed on the THEOM bottom lander. Folder contains data saved in binary .ad2cp file format."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Raw Nortek Vector ADV Data - MATLAB and netCDF.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Vector.20210701.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek Vector deployed on the THEOM bottom lander in Cook Inlet, AK on 7/1/2021 11am UTC. Data was read using the DOLfYN python package (v1.0.2). Folder contains data saved in both netCDF and MATLAB file formats."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Processed Nortek Vector ADV Data.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Vector.b1.20210701.zip",
    "mediaType": "application/zip",
    "description": "Processed Nortek Vector data from THEOM bottom lander. Data was averaged into 5 minute bins, turbulence statistics were calculated, and the dataset was saved in both netCDF and MATLAB file formats using the DOLfYN python package (v1.0.2). Dataset was standardized using the TSDAT python package (v0.4.2)."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Raw Nortek ADV Data - vec.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/440/THEOM.Vector.b1.20210701.zip",
    "mediaType": "application/zip",
    "description": "Raw data from Nortek ADV deployed on the THEOM bottom lander. Folder contains data saved in binary .vec file format."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Processed Velocity and Turbulence Measurements",
    "format": "HTML",
    "accessURL": "https://mhkdr.openei.org/submissions/475",
    "mediaType": "text/html",
    "description": "Link to submission containing processed (and some raw) datasets from the same resource characterization campaign in Cook Inlet."
  }
]
DOI 10.15473/1876584
identifier https://data.openei.org/submissions/8034
issued 2021-07-01T06:00:00Z
keyword 
                                            [
  "ADCP",
  "ADV",
  "Alaska",
  "DOLfYN",
  "Hydrokinetic",
  "MATLAB",
  "MHK",
  "Marine",
  "Nortek",
  "Signature 500",
  "acoustic doppler current profiler",
  "acoustic doppler velocimeter",
  "current",
  "data",
  "energy",
  "frequency",
  "measurements",
  "mooring",
  "power",
  "processed data",
  "python",
  "raw data",
  "resource",
  "tidal"
]
landingPage https://mhkdr.openei.org/submissions/440
license https://creativecommons.org/licenses/by/4.0/
modified 2024-02-14T17:05:27Z
programCode 
                                            [
  "019:009"
]
projectLead Heather Spence
projectNumber FY21 AOP 2.1.5.401
projectTitle Model Validation and Site Characterization for Early Deployment MHK Sites and Establishment of Wave Classification Scheme
publisher 
                                            {
  "name": "National Renewable Energy Laboratory",
  "@type": "org:Organization"
}
spatial 
                                            "{"type":"Polygon","coordinates":[[[-180,-83],[180,-83],[180,83],[-180,83],[-180,-83]]]}"
title Tidal Energy Resource Characterization, Bottom Lander Measurements, Cook Inlet, AK, 2021

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov