Laboratory Observations of Oscillatory Flow Over Sand Ripples: Velocity Metadata

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Metadata:

Identification_Information
Data_Quality_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Donya P. Frank-Gilchrist
Originator: Allison M. Penko
Originator: Joseph Calantoni
Originator: Margaret L. Palmsten
Publication_Date: 20240920
Title:

Laboratory Observations of Oscillatory Flow Over Sand Ripples: Velocity Metadata

Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Larger_Work_Citation:

Citation_Information:

Originator: Donya P. Frank-Gilchrist
Originator: Allison M. Penko
Originator: Joseph Calantoni
Originator: Margaret L. Palmsten
Publication_Date: 20240920
Title: Laboratory Observations of Oscillatory Flow Over Sand Ripples
Edition: 1.0
Series_Information:

Series_Name: U.S. Geological Survey data release
Issue_Identification: doi:10.5066/P1OUXO7S

Publication_Information:

Publication_Place: St. Petersburg, Florida
Publisher:

U.S. Geological Survey – St. Petersburg Coastal and Marine Science Center

Online_Linkage: https://doi.org/10.5066/P1OUXO7S

Description:

Abstract:

These data comprise laboratory observations of oscillatory flows over mobile sand ripples. The data were collected January 6-7, 2016, in the small-oscillatory flow tunnel (S-OFT) in the Sediment Dynamics Laboratory at the U.S. Naval Research Laboratory (NRL), Stennis Space Center, Mississippi (MS), while Donya Frank-Gilchrist was a National Research Council post-doctoral fellow there. The flow tunnel has a 2-m long acrylic test section which was filled with coarse quartz sand. A piston and flywheel were used to drive the oscillatory flows, from which equilibrium sand ripples developed. The experimental setup comprised of three Photron cameras and a double-pulsed Litron Nd:YAG laser, synced and sampled at 100 hertz (Hz) in double-framed mode. The fluid velocities were obtained through Particle Image Velocimetry (PIV) processed with LaVision DaVis 11 software. The processed fluid velocities were exported from the original file format (.vc7) to network Common Data Form (netcdf, .nc) files for inclusion in this data release. For further information regarding experimental setup, methods, and results, refer to Frank-Gilchrist and others (2018, 2024).

Purpose:

The measurements were obtained to investigate the initiation of motion and transport of sand grains over flat and rippled sand beds under oscillatory flows. These data can be further processed to produce sand grain velocities. To ensure that U.S. Geological Survey-St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) data management protocols were followed, a USGS Field Activity Number was assigned (FAN) for this camera imagery collection; 2016-371-DD. Additional information about this FAN is available on the Coastal and Marine Geoscience Data System (CMGDS): https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-371-DD.

Supplemental_Information:

The bounding coordinates below represent the location of the Sediment Dynamics Laboratory where the laboratory experiment was conducted at the U.S. Naval Research Laboratory, Stennis Space Center, MS. These datasets represent the images of the sand ripple and the calculated fluid velocities measured during the laboratory experiment. More fluid velocity data may be added to this release as needed.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20160106
Ending_Date: 20160107

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -89.612703
East_Bounding_Coordinate: -89.612703
North_Bounding_Coordinate: 30.367994
South_Bounding_Coordinate: 30.367994

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:96076afd-7af4-47ff-950e-a7be8aa08758

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: environment

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: St. Petersburg Coastal and Marine Science Center
Theme_Keyword: SPCMSC
Theme_Keyword: Next-Generation Total Water Level and Coastal Change Forecast

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: image analysis
Theme_Keyword: laboratory methods
Theme_Keyword: optical methods
Theme_Keyword: image collections
Theme_Keyword: geomorphology
Theme_Keyword: ocean sciences
Theme_Keyword: coastal processes

Place:

Place_Keyword_Thesaurus: Common Geographic Areas (CGA)
Place_Keyword: Mississippi

Access_Constraints:

None. There are no access constraints associated with this data.

Use_Constraints:

None. Data are in the public domain and there are no use constraints associated with this data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Donya P. Frank-Gilchrist
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Position: Research Physical Scientist
Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: Saint Petersburg
State_or_Province: FL
Postal_Code: 33701

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: dfrank-gilchrist@usgs.gov

Native_Data_Set_Environment:

Environment as of metadata creation: Microsoft Windows 10 Enterprise version 22H2; LaVision DaVis 8 for image collection and calibration and DaVis 11 for velocity processing and output (https://www.lavision.de/en/products/davis-software/); MATLAB 2023a for exporting the velocities to netcdf format.

Cross_Reference:

Citation_Information:

Originator: Donya P. Frank-Gilchrist
Originator: Allison M. Penko
Originator: Joseph Calantoni
Publication_Date: 20181001
Title:

Investigation of Sand Ripple Dynamics with Combined Particle Image and Tracking Velocimetry

Series_Information:

Series_Name: Journal of Atmospheric and Oceanic Technology
Issue_Identification: Volume 35, Issue 10

Publication_Information:

Publication_Place: Boston, Massachusetts
Publisher: American Meteorological Society

Other_Citation_Details: Pages 2019-2036
Online_Linkage: https://doi.org/10.1175/JTECH-D-18-0054.1

Cross_Reference:

Citation_Information:

Originator: Donya P. Frank-Gilchrist
Originator: Margaret L. Palmsten
Originator: Allison M. Penko
Originator: Joseph Calantoni
Publication_Date: 20241017
Title: Vortex Trapping of Suspended Sand Grains Over Ripples
Series_Information:

Series_Name: Journal of Geophysical Research: Earth Surface
Issue_Identification: Volume 129, Issue 10

Publication_Information:

Publication_Place: Online
Publisher: AGU Journals

Online_Linkage: https://doi.org/10.1029/2023JF007620

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The images collected from the two outer cameras, set up in stereoscopic mode, were processed by cross-correlation techniques in LaVision DaVis 11 to calculate the fluid velocities.

Logical_Consistency_Report:

The PIV laser and camera system were programmed to collect 2,728 double-framed images at 100 Hz per dataset, based on internal camera memory. Experiment was run five times (datasets A through E) with consistent set up and calibration between dataset runs, except for dataset E which was slightly asymmetric (Frank-Gilchrist and others, 2024).

Completeness_Report:

The velocities in each dataset represent a portion of the sand ripple within the overlapping field of view of the two outer cameras. Once the set of 2,728 images were collected, no measurements could occur while the data were being downloaded. Therefore, this dataset is not considered continuous between dataset runs. Additionally, the sand ripple may have migrated in the tank between each dataset such that a different section of the ripple was captured in the camera field of view for the subsequent dataset. This product is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.

Lineage:

Process_Step:

Process_Description:

Experimental setup and calibration: The experiment was conducted in small-oscillatory flow tunnel at the U.S. Naval Research Laboratory, Stennis Space Center, MS. The experimental setup (the PIV system) is comprised of three Photron cameras and a double-pulsed Litron Nd:YAG laser, synced and sampled at 100 Hz in double-framed mode. For more information about experimental setup, refer to Frank-Gilchrist and others (2018). After the cameras were mounted and adjusted for optimum focus with the laser light, the intrinsic camera calibration images were then taken of the LaVision 3-dimensional, two-level calibration plate. LaVision DaVis 8 software was used to rectify and calibrate the images of setup.

Process_Date: 20160105
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Donya P. Frank-Gilchrist
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St Petersburg
State_or_Province: FL
Postal_Code: 33710
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: dfrank-gilchrist@usgs.gov

Process_Step:

Process_Description:

Fluid velocity image collection and calculation: The two outer cameras in the PIV system were set up in stereoscopic mode and captured 2,728 images per run (.im7 format). This experiment was run five times (Dataset A through E). The images were processed using cross-correlation techniques in LaVision DaVis 11 to calculate the fluid velocities. The calculated fluid velocities were then saved in .vc7 file format, one file per time step resulting in 2,728 .vc7 files per dataset. The images used to calculate fluid velocity are not included in this data release. For more information about experimental methods and results, refer to Frank-Gilchrist and others (2018).

Process_Date: 20231220
Source_Produced_Citation_Abbreviation: B#####.vc7
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Donya P. Frank-Gilchrist
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St Petersburg
State_or_Province: FL
Postal_Code: 33710
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: dfrank-gilchrist@usgs.gov

Process_Step:

Process_Description:

Fluid velocity file conversion: The processed fluid velocities (.vc7) were read into MATLAB 2023a for further analysis. Once complete, the velocities (one per dataset, A through E) were then exported as netcdf (.nc) files for inclusion in this data release. Climate and Forecast (CF)-compliant metadata (version CF-1.6) were written to the files using functions in MATLAB. For more information about the fluid velocity analysis, refer to Frank-Gilchrist and others (2018).

Source_Used_Citation_Abbreviation: B#####.vc7
Process_Date: 20240428
Source_Produced_Citation_Abbreviation: DatasetX_FluidVelocities.nc
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Donya P. Frank-Gilchrist
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St Petersburg
State_or_Province: FL
Postal_Code: 33710
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: dfrank-gilchrist@usgs.gov

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

The CF-compliant metadata (version CF-1.6) in the header of the netCDF file provides information about the conventions used for attributes in the dataset. Non-existent or invalid velocity data within the domain have been assigned values of NaN.

Entity_and_Attribute_Detail_Citation:

The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: USGS SPCMSC Data Management Group
Contact_Organization:

U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov

Resource_Description:

DatasetA_FluidVelocities.nc, DatasetB_FluidVelocities.nc, DatasetC_FluidVelocities.nc, DatasetD_FluidVelocities.nc, DatasetE_FluidVelocities.nc

Distribution_Liability:

Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: NetCDF

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P1OUXO7S/data/DatasetA_FluidVelocities.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P1OUXO7S/data/DatasetB_FluidVelocities.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P1OUXO7S/data/DatasetC_FluidVelocities.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P1OUXO7S/data/DatasetD_FluidVelocities.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P1OUXO7S/data/DatasetE_FluidVelocities.zip

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20241022
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: USGS SPCMSC Data Management Group
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: Saint Petersburg
State_or_Province: FL
Postal_Code: 33701

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/NRL_LabObs_SandRipple_Velocity_metadata.html>