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Water Velocity and Turbulence Data from Sequim Bay, WA, 2016 - 2025

Published by Pacific Northwest National Laboratory | Department of Energy | Catalog Last Checked: March 23, 2026 at 09:43 PM | Dataset Last Updated: January 27, 2026 at 04:13 PM
Collection of publishable datasets from bottom-lander deployments of acoustic Doppler instrumentation in Sequim Bay, WA measured between 2016 and 2025. These data primarily consist of water velocity measurements from ADCPs deployed by PNNL in both the inlet and the bay itself. Raw data were processed either using custom MATLAB code or the DOLfYN submodule of the MHKiT Python package. ADCP velocity data are typically saved in the East-North-Up coordinate frame, while ADV velocity and turbulence data are saved in principal (streamwise-cross_stream-up) reference frame. Data products are provided in a few tiers: .ad2cp or .000: raw binary datafile from the instrument .a1: processed and quality controlled data, stored in netCDF4 format .b1: bin-averaged data, stored in netCDF4 format Deployments are saved under the month and year that they began. Figures and technical reports, if available, are included with the datasets. For more information on the deployments and data structure please see the "README.txt" resource below.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "019:20"
]
contactPoint 
{
  "fn": "James McVey",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:james.mcvey@pnnl.gov"
}
dataQuality 
true
description Collection of publishable datasets from bottom-lander deployments of acoustic Doppler instrumentation in Sequim Bay, WA measured between 2016 and 2025. These data primarily consist of water velocity measurements from ADCPs deployed by PNNL in both the inlet and the bay itself. Raw data were processed either using custom MATLAB code or the DOLfYN submodule of the MHKiT Python package. ADCP velocity data are typically saved in the East-North-Up coordinate frame, while ADV velocity and turbulence data are saved in principal (streamwise-cross_stream-up) reference frame. Data products are provided in a few tiers: .ad2cp or .000: raw binary datafile from the instrument .a1: processed and quality controlled data, stored in netCDF4 format .b1: bin-averaged data, stored in netCDF4 format Deployments are saved under the month and year that they began. Figures and technical reports, if available, are included with the datasets. For more information on the deployments and data structure please see the "README.txt" resource below.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Sequim Tidal Resource Data on AWS",
    "format": "HTML",
    "accessURL": "https://data.openei.org/s3_viewer?bucket=marine-energy-data&prefix=primre%2Fsequim-tidal-resource-deployments%2F&limit=50",
    "mediaType": "text/html",
    "description": "Sequim Bay water velocity and turbulence data from 2016 - 2025 in AWS S3. For more information on the data see the README file. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "DOLfYN Information",
    "format": "html",
    "accessURL": "https://dolfyn.readthedocs.io/en/latest/basics.html",
    "mediaType": "text/html",
    "description": "DOLfYN python package information which can be used to read and analyze the data files. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "Deployment Summaries.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/662/Deployment%20Summaries.zip",
    "mediaType": "application/zip",
    "description": "Deployment summary PDF reports for data in 2017-2018. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "Figures.zip",
    "format": "zip",
    "accessURL": "https://mhkdr.openei.org/files/662/Figures.zip",
    "mediaType": "application/zip",
    "description": "Data figures that accompany the data lake datasets by year-month. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "0. README.txt",
    "format": "txt",
    "accessURL": "https://mhkdr.openei.org/files/662/README.txt",
    "mediaType": "text/plain",
    "description": "README file including information on deployments (location, lat/lon, inst., length) and a directory structure of the data provided in the data lake. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "Bathymetry Map.png",
    "format": "png",
    "accessURL": "https://mhkdr.openei.org/files/662/bathy_map_mhkdr.png",
    "mediaType": "image/png",
    "description": "Bathymetry map of the inlet with locations of each deployment."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Velocity Map.png",
    "format": "png",
    "accessURL": "https://mhkdr.openei.org/files/662/velocity_map_mhkdr.png",
    "mediaType": "image/png",
    "description": "Spatial velocity map of the inlet with locations of each deployment."
  },
  {
    "@type": "dcat:Distribution",
    "title": "August 2020 v1.0.0 Dataset",
    "format": "HTML",
    "accessURL": "https://mhkdr.openei.org/submissions/395",
    "mediaType": "text/html",
    "description": "Link to the MHKDR submission for the original August 2020 dataset. This provides the v1.0.0 data for August 2020."
  },
  {
    "@type": "dcat:Distribution",
    "title": "MHKiT Marine and Hydrokinetic Toolkit",
    "format": "HTML",
    "accessURL": "https://mhkit-software.github.io/MHKiT/",
    "mediaType": "text/html",
    "description": "MHKiT is open-source marine renewable energy (MRE) software, developed in Python and MATLAB, that includes modules for ingesting, quality controlling, processing, visualizing, and managing data."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Marine Energy Data Registry on AWS",
    "format": "HTML",
    "accessURL": "https://registry.opendata.aws/marine-energy-data/",
    "mediaType": "text/html",
    "description": "AWS public dataset program registry page for data released under the Department of Energy's Water Power Technologies Office (DOE WPTO) Marine Energy Data Lake. The registry page contains information about dataset documentation, access, and contact, for each of the Marine Energy Data Lake datasets."
  }
]
identifier https://data.openei.org/submissions/8613
issued 2016-07-12T06:00:00Z
keyword 
[
  "Hydrodynamic",
  "Hydrokinetic",
  "MCRL",
  "ME data pipeline",
  "MHK",
  "Marine",
  "PNNL",
  "Sequim",
  "Sequim Bay",
  "Tidal",
  "current",
  "data",
  "dolfyn",
  "processed data",
  "resource",
  "sensor",
  "tsdat",
  "turbulence",
  "water velocity"
]
landingPage https://mhkdr.openei.org/submissions/662
license https://creativecommons.org/licenses/by/4.0/
modified 2026-01-27T16:13:25Z
programCode 
[
  "019:009"
]
projectLead Samantha Eaves
projectNumber FY17 AOP 2.3.2.601
projectTitle Triton Initiative
publisher 
{
  "name": "Pacific Northwest National Laboratory",
  "@type": "org:Organization"
}
spatial 
"{"type":"Polygon","coordinates":[[[-180,-83],[180,-83],[180,83],[-180,83],[-180,-83]]]}"
title Water Velocity and Turbulence Data from Sequim Bay, WA, 2016 - 2025

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