Time-series measurements of oceanographic and seabed response data collected in Cape Cod Bay, Barnstable, MA, March 10 to April 7, 2021

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Frequently anticipated questions:

What does this data set describe?

Title:
Time-series measurements of oceanographic and seabed response data collected in Cape Cod Bay, Barnstable, MA, March 10 to April 7, 2021
Abstract:
To assess cross-shore sediment transport prediction techniques in coastal models for a wave-dominated sandy coast, the U.S. Geological Survey Woods Hole Coastal and Marine Science Center collected data to measure wave-induced and mean current water velocities near the seabed and the response of the seabed to these forces. A four-legged bottom landing frame (quadpod) containing oceanographic instruments was deployed on the seafloor in the nearshore zone of Cape Cod Bay off Sandy Neck Beach, Barnstable, MA on March 10, 2021 and recovered April 7, 2021, to coincide with a climatologically active period for storms. The quadpod was mounted with upward- and downward-looking 5-beam acoustic doppler current profilers (Nortek Signatures) to measure velocity throughout the water column and calculate wave statistics, two acoustic doppler velocimeters (Nortek Vectors) to measure water velocity near the seabed, a conductivity and temperature recorder (SeaBird Microcat) to measure temperature and salinity, a wave and tide pressure logger (SeaBird Seagauge), a digital rotary sonar (Imagenex) to image the seabed, and an acoustic backscatter sensor (Aquatec Aquascat) to profile acoustic backscatter near the seabed. Time-series data was processed using USGS software (stglib), producing network Common Data Format (netCDF) files, compliant to Climate and Forecast (CF) data convention. Additionally, sediment samples were collected for grain-size analysis. These data will be used in a coupled ocean-atmosphere-wave-sediment transport model at different grid scales to encompass storm events, regional waves and currents, and fine-resolution wave-breaking to increase our understanding of the drivers that control sediment movement in Cape Cod Bay and help coastal zone managers to better address shoreline change issues.
Supplemental_Information:
More information about the field activities during which these data were collected is available at https://cmgds.marine.usgs.gov/services/activity.php?fan=2021-018-FA and https://cmgds.marine.usgs.gov/services/activity.php?fan=2021-020-FA. Once published these data will be accessible through the Ocean Time-Series Data portal at https://cmgds.marine.usgs.gov/ocean-time-series/ by experiment (CCB21) or THREDDS catalog (10.5066-P19NUBNW), along with other similar time-series data sets published by Coastal and Marine Hazards and Resources Program.
  1. How might this data set be cited?
    Suttles, Steven E., De, Olivia A. Meo, Bales, Robert D., and Warner, John C., 20251004, Time-series measurements of oceanographic and seabed response data collected in Cape Cod Bay, Barnstable, MA, March 10 to April 7, 2021: data release DOI:10.5066/P19NUBNW, U.S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts.

    Online Links:

    Other_Citation_Details:
    Suggested citation: Suttles, S.E., De Meo, O.A., Bales, R.D., and Warner, J.C., 2025, Time-series measurements of oceanographic and seabed response data collected in Cape Cod Bay, Barnstable, MA, March 10 to April 7, 2021: U.S. Geological Survey data release, https://doi.org/10.5066/P19NUBNW.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -70.330840
    East_Bounding_Coordinate: -70.330020
    North_Bounding_Coordinate: 41.742960
    South_Bounding_Coordinate: 41.742300
  3. What does it look like?
    https://cmgds.marine.usgs.gov/data-releases/media/2025/10.5066-P19NUBNW/ffcadc75b37a42b8a13a83c52183dbe1/quadpod.JPG (JPEG)
    Photo of quadpod with attached sensors.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 10-Mar-2021
    Ending_Date: 07-Apr-2021
    Currentness_Reference:
    ground condition at time data were collected
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: netCDF
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (1)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is North American Datum of 1983 (National Spatial Reference System 2011).
      The ellipsoid used is GRS_1980.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.
      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: North American Vertical Datum of 1988 using Geoid 18
      Altitude_Resolution: 0.01
      Altitude_Distance_Units: meters
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates
      Depth_System_Definition:
      Depth_Datum_Name: Mean sea level
      Depth_Resolution: 0.01
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates
  7. How does the data set describe geographic features?
    11261sigb.nc
    Continuously sampled (4 Hz) data of profiled horizontal and vertical water velocities from the 4 slant beams, acoustic surface tracking, pressure, and Attitude and Heading Reference System (AHRS) of "Burst" data type (b) from upward looking Nortek Signature 1000 5-beam ADCP. Contains 9,649,920 time points with time interval of 0.25 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11261sigb-a.nc
    Time averaged data of profiled horizontal and vertical water velocities from 4 slant beams, acoustic surface tracking, pressure, and Attitude and Heading Reference System (AHRS) of "Burst" data type (b) from upward looking Nortek Signature 1000 5-beam ADCP. Contains 6,701 time points with time interval of 360 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11261sigs-a.nc
    Non-directional wave statistics calculated using the rapidly sampled data of "Burst" data type from upward looking Nortek Signature 1000 5-beam ADCP. Contains 670 time points with time interval of 3,600 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11261sigs_diwasp-a.nc
    Directional wave statistics calculated using rapidly sampled data of "Burst" data type from upward looking Nortek Signature 1000 5-beam ADCP using the pyDIWASP directional wave processing libraries (diwasp). Contains 670 time points with time interval of 3,600 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11261sigb5.nc
    Continuously sampled (4 Hz) data of profiled vertical water velocities from beam 5 (center), pressure, and Attitude and Heading Reference System (AHRS) of "IBurst" data type (b5) from upward looking Nortek Signature 1000 5-beam ADCP. Contains 9,649,920 time points with time interval of 0.25 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11261sigb5-a.nc
    Time-average data of profiled vertical water velocities from beam 5 (center), pressure, and Attitude and Heading Reference System (AHRS) of "IBurst" data type (b5) from upward looking Nortek Signature 1000 5-beam ADCP. Contains 6,701 time points with time interval of 360 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11262sigb.nc
    Continuously sampled (4 Hz) data of profiled horizontal and vertical water velocities from the 4 slant beams, pressure, and Attitude and Heading Reference System (AHRS) of "BurstHR" data type from downward looking Nortek Signature 1000 5-beam ADCP in High Resolution (HR) mode for all 5 beams. Contains 9,649,920 time points with time interval of 0.25 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11262sigb-a.nc
    Time averaged data of profiled horizontal and vertical water velocities from 4 slant beams, pressure, and Attitude and Heading Reference System (AHRS) of "BurstHR" data type from downward looking Nortek Signature 1000 5-beam ADCP in High Resolution (HR) mode for all 5 beams. Contains 6,701 time points with time interval of 360 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11262sigb5.nc
    Continuously sampled (4 Hz) data of profiled vertical water velocities from beam 5 (center), pressure, and Attitude and Heading Reference System (AHRS) of "IBurstHR" data type (b5) netCDF file from downward looking Nortek Signature 1000 5-beam ADCP in High Resolution (HR) mode for all 5 beams. Contains 9,649,920 time points with time interval of 0.25 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11262sigb5-a.nc
    Time-average data of profiled vertical water velocities from beam 5 (center), pressure, and Attitude and Heading Reference System (AHRS) of "IBurstHR" data type (b5) from downward looking Nortek Signature 1000 5-beam ADCP in High Resolution (HR) mode for all 5 beams. Contains 6,701 time points with time interval of 360 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11262sige1.nc
    Continuously sampled (4 Hz) data of profiled vertical echosounder data from beam 5 (center), pressure, and Attitude and Heading Reference System (AHRS) of "EchoSounder" data type (e1) from downward looking Nortek Signature 1000 5-beam ADCP in High Resolution (HR) mode for all 5 beams. Contains 9,649,920 time points with time interval of 0.25 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11262sige1-a.nc
    Time-average data of profiled vertical echosounder data from beam 5 (center), pressure, and Attitude and Heading Reference System (AHRS) of "EchoSounder" data type (e1). time = netCDF file from downward looking Nortek Signature 1000 5-beam ADCP in High Resolution (HR) mode for all 5 beams. Contains 6,701 points, time interval = 360 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11263mc-a.nc
    Water temperature, conductivity, and salinity data from Seabird SBE37 MicroCat. Contains 8,042 time points with time interval of 300 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11264sgb.nc
    Burst sampled (4 Hz) pressure data from Seabird SBE26 Seagauge Wave and Tide recorder. Contains 279 time points with time interval of 8,640 seconds, and 32,768 samples at each time point with sample interval of 0.25 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11264sgs-a.nc
    Non-directional wave statistics and water level data from Seabird SBE26 Seagauge Wave and Tide recorder. Contains 2,231 time points with time interval of 1,024 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11264sgt-a.nc
    Pressure and water level data from Seabird SBE26 Seagauge Wave and Tide recorder. Contains 3,350 time points with time interval of 720 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11265sonb_5m.nc
    Sweeps of seabed acoustic image data of 5 meter range (5m) from Imagenex Digital Rotary Sonar. Contains 335 time points of 4 sweeps with time interval of 7,200 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11265sonb_5m-a.nc
    Sweep averaged seabed acoustic image data of 5 meter range (5m) from Imagenex Digital Rotary Sonar. Contains 335 time points with time interval of 7,200 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11265sonb_5m-xy.nc
    Sweep averaged seabed acoustic image data of 5 meter range (5m) in horizontal grid coordinates (xy) from Imagenex Digital Rotary Sonar. Contains 335 time points with time interval of 7,200 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11266absb.nc
    Burst sampled (4 Hz) acoustic backscatter profile data from Aquatec Acoustic Backscatter instrument. Contains 669 time points with time interval of 3,600 seconds, and 8,192 samples at each time point with sample interval of 0.25 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11266absb-a.nc
    Burst averaged acoustic backscatter profile data from Aquatec Acoustic Backscatter instrument. Contains 669 time points with time interval of 3,600 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11267vecb.nc
    Continuously sampled (16 Hz) water velocity and pressure data from a Nortek Vector Acoustic Doppler Velocimeter (ADV). Contains 38,599,680 time points with a time interval of 0.0625 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11267vecb-a.nc
    Time averaged water velocity and pressure data from a Nortek Vector Acoustic Doppler Velocimeter (ADV). Contains 6,701 time points with time interval of 360 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11268vecb.nc
    Continuously sampled (16 Hz) water velocity and pressure data from a Nortek Vector Acoustic Doppler Velocimeter (ADV). Contains 38,599,680 time points with time interval of 0.0625 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    11268vecb-a.nc
    Time averaged water velocity and pressure data from a Nortek Vector Acoustic Doppler Velocimeter (ADV). Contains 6,701 time points with time interval of 360 seconds. (Source: Coastal and Marine Hazards and Resources Program (CHMRP))
    Entity_and_Attribute_Overview:
    NetCDF files are self-describing and attribute information may be found in the header of the file itself. This information can be viewed for each file, without downloading the file, by using THREDDS catalog in the Ocean Time-Series Data portal and OpenDAP access upon selecting a file. See access instruction element in this metadata record for more information.
    Entity_and_Attribute_Detail_Citation:
    The entity and attribute information were generated by the data release first author, unless otherwise noted. Please review the rest of the metadata record for additional details and information.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Steven E. Suttles
    • Olivia A. De Meo
    • Robert D. Bales
    • John C. Warner
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Steven E. Suttles
    U.S. Geological Survey, Northeast Region
    Mechanical Engineer
    384 Woods Hole Road
    Woods Hole, MA
    US

    508-548-8700 (voice)
    whsc_data_contact@usgs.gov

Why was the data set created?

A submerged quadpod was deployed to collect time series data of water velocity, acoustic surface tracking, pressure, acoustic backscatter intensity, sonar images, temperature, conductivity, and salinity.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 10-Mar-2021 (process 1 of 5)
    A quadpod mounted with upward- and downward-looking Nortek Signatures, two Nortek Vectors, a Seabird MicroCAT, a Seabird Seagauge, an Imagenex Sonar, an Aquatec Aquascat, and two Edgetech releases was loaded onto the R/V Tioga in Woods Hole, Massachusetts. The ship sailed to Cape Cod Bay, where a seabed bathymetry transect from inshore to offshore was conducted and grab samples of the seabed were collected to find an appropriate deployment site. The quadpod was lowered into the water and the latitude and longitude were recorded. The releases were pinged and a signal was received back indicating the quadpod was upright. Steven Suttles is the contact for this process step and subsequent process steps until otherwise noted. Person who carried out this activity:
    Steven E. Suttles
    U.S. Geological Survey, Northeast Region
    Mechanical Engineer
    384 Woods Hole Road
    Woods Hole, MA
    US

    508-548-8700 (voice)
    whsc_data_contact@usgs.gov
    Date: 07-Apr-2021 (process 2 of 5)
    The R/V Tioga sailed from Woods Hole, Massachusetts to Cape Cod Bay. The releases were pinged and a signal was received back indicating the quadpod was upright. The release command was initiated and the quadpod was hooked and raised onto the deck. All instruments were clean and free of biofouling. Before departing the site 3 grab samples of the seabed were collected for grain size analysis. All data were downloaded from the instruments.
    Date: Jun-2025 (process 3 of 5)
    The raw data files from each sensor were processed and converted to netCDF using the stglib Python library, a package of code to process data consistent with procedures of the USGS Coastal/Marine Hazards and Resources Program; see "history" global attribute in each processed netCDF file for stglib and python versions used. In stglib, attributes conforming to Climate and Forecast (CF) Conventions were added; see "Conventions" global attribute in processed netCDF files for CF version used. All times are in Coordinated Universal Time (UTC). For all pressure sensors, corrected pressure data (P_1ac) were calculated by finding an offset with local atmospheric pressure readings when the pressure sensor was reading in air just prior to deployment. Pressure data were corrected using the offset and a time-series of local atmospheric pressure over the course of the deployment to remove the atmospheric contribution to the deployed pressure data. The resulting corrected pressure variable is the pressure due to seawater (standard_name "sea_water_pressure_due_to_seawater" in netCDF files). Data quality assurance and quality control (QAQC) was performed by inspecting all variables and replacing spurious values with the fill value; see global attribute ‘VAR_Fill’ in netCDF files for fill value. Details of which portions of data were flagged and replaced are available in the metadata in each netCDF file and information about the individual QAQC trimming functions are available in the stglib documentation (https://stglib.readthedocs.io/en/latest/) in the "Instrument configuration file" section.The root of the netCDF files are named using the convention ####XZZZ where '####' is the mooring number, 'X' is the position on the mooring of the sensor with 1 being closest to the surface, and 'ZZZ' (length between 2 and 5 characters) is an abbreviation for the instrument that was deployed; see instrument abbreviations table in stglib documentation https://cmgp.code-pages.usgs.gov/stglib/insttbl.html. After instrument abbreviation there are additional processed file suffixes that identify the type and level of processing; '-a' is Best Basic Version (BBV = highest level of processing), 'b' is burst or continuous fast sample rate data, 's' is wave statistics from built-in stglib, 's_diwasp' is wave statistics from pyDIWASP library, and 't' is tide data. For example, in the file 11263mc-a.nc, '1126' is the mooring number, '3' is the position of the sensor on the mooring, 'mc' refers to the Seabird MicroCAT sensor, and '-a' indicates it is BBV.
    Date: Jun-2025 (process 4 of 5)
    More QAQC was required for the near-bed velocity measurements from the downward pointed Nortek Signature in 5-beam High Resolution (HR) mode and the two Nortek Vectors which were affected by periods of low correlation and high signal noise that were likely due to low amounts of acoustic scatters in the water at these times. The Vectors and the HR mode for the Signature use a pulse-coherent ping pair for the velocity measurements that is more impacted by low scattering conditions, and as a result the earth coordinate velocities of u_1205, v_1206, w_1204, and w2_1204 (Signature only) were filtered using a 4th order Butterworth lowpass filter with a 2 second cutoff to smooth out the noise. The unfiltered velocities were preserved in the netCDF files by copying them to a new variable with "_unfiltered" appended to the original variable name prior to applying the filter. The downward looking Signature in 5-beam HR mode required additional QAQC because of the limited velocity range in the 5-beam HR mode that was exceeded during times of large waves and high orbital wave velocities causing phase wrapping of the measured velocities. Times of affected velocity measurements were identified using minimum correlation and point-point maximum absolute difference thresholds to fill bad values with the fill value (NaN).
    Date: 17-Nov-2025 (process 5 of 5)
    There was a typo in the first online link to the DOI, so this was fixed. (20251117) Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    (508) 548-8700 x2251 (voice)
    (508) 457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    De, Olivia A. Meo, Bales, Robert D., Suttles, Steven E., and Warner, John C., 2024, Grain-size analysis data from sediment samples in support of oceanographic and water-quality measurements in the nearshore zone of Sandy Neck Beach, Cape Cod Bay, Massachusetts, collected in March and April, 2021: data release DOI:10.5066/P13AJGXV, U.S. Geological Survey, Reston, VA.

    Online Links:

    Nowacki, Daniel J., Suttles, Steven E., Bales, Robert D., and De, Olivia A. Meo, 2024, stglib: Oceanographic Time Series Data Processing Library: U.S. Geological Survey software release DOI:10.5066/P13IQYFW, U.S. Geological Survey, Reston, VA.

    Online Links:

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    The Imagenex 881A-GS sonar has a range resolution of 2 mm at 1-4 meters and 10 mm at greater than 5 meters. The Sea-Bird SBE37 MicroCAT has a conductivity accuracy of +/- 0.0003 S/m and temperature accuracy of +/-0.002 degrees Celsius. The Sea-Bird SBE26plus Seagauge has a temperature accuracy of +/- 0.01 degrees Celsius and pressure accuracy of +/- 0.01% full scale. The Aquatec AQUAscat 1000R has a range resolution of 2.5 mm to 4 cm, temperature accuracy of +/- 0.05 degrees Celsius, and pressure accuracy of +/- 0.2% full scale. The Nortek Vector has a velocity accuracy of +/- 0.5% of measured value +/- 1 mm/s and typical precision of +/- 1% of the velocity range, temperature accuracy of +/- 0.1 degrees Celsius, pressure accuracy of +/- 0.5% full scale and precision better than 0.005% full scale, and compass accuracy of +/- 2 degrees. The Nortek Signature 1000 has a velocity accuracy of 0.3% of measured value +/- 0.3 cm/s, temperature accuracy of +/- 0.1 degrees Celsius, pressure accuracy of +/- 0.1% full scale, and compass accuracy of +/- 2 degrees.
  2. How accurate are the geographic locations?
    Horizontal position was determined using a Garmin GPSMAP 78sc handheld GPS. The expected absolute, horizontal accuracy is stated to be 3 to 5 m at the 95% confidence level using the WAAS setting. The Garmin GPS data was collected in WGS84 datum and was converted to NAD83(2011) using VDatum tool ( https://vdatum.noaa.gov/vdatumweb/ ).
  3. How accurate are the heights or depths?
    Orthometric elevations (NAVD88) were calculated with the Vdatum tool (https://vdatum.noaa.gov/vdatumweb/) using Geoid18 and estimates of local mean sea-level from the corrected pressure data. The resulting vertical position uncertainty is approximately 0.10 m.
  4. Where are the gaps in the data? What is missing?
    All instruments on the quadpod were free of biofouling when recovered. The dataset is considered complete.
  5. How consistent are the relationships among the observations, including topology?
    The two Signatures and two Vectors had their compasses calibrated prior to deployment. Pressure sensors were compared to local atmospheric pressure data before deployment and an offset was determined. This offset along with a time-series of local atmospheric data were used to find corrected pressure data (variable name "P_1ac" and standard_name "sea_water_pressure_due_to_sea_water" in the netCDF files). All data were processed, quality-controlled, and converted into netCDF files with the stglib Python library, a package of code to process data consistent with the procedures of the USGS Coastal/Marine Hazards and Resources Program. More information about the stglib package can be found here: https://stglib.readthedocs.io/en/latest/.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints No access constraints. Please see 'Distribution Information' for details.
Use_Constraints These data are marked with a Creative Commons Zero v1.0 Universal (CC0-1.0) public domain dedication and do not have any use constraints. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data.
  1. Who distributes the data set? (Distributor 1 of 1)
    Steven E. Suttles
    U.S. Geological Survey, Northeast Region
    Mechanical Engineer
    384 Woods Hole Road
    Woods Hole, MA
    US

    508-548-8700 (voice)
    whsc_data_contact@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable data in self-describing netCDF files, metadata as xml and text formats, and zip file of all the netCDF processed data files are provided.
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    These data can be viewed with any software capable of reading netCDF files.

Who wrote the metadata?

Dates:
Last modified: 18-Nov-2025
Metadata author:
Steven E. Suttles
U.S. Geological Survey, Northeast Region
Mechanical Engineer
384 Woods Hole Road
Woods Hole, MA
US

508-548-8700 (voice)
whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS.
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/DRB_data_release/DRB_P19NUBNW/CCB21_timeseries_metadata.faq.html>
Generated by mp version 2.9.51 on Tue Nov 18 11:45:13 2025