Metadata: Identification_Information: Citation: Citation_Information: Originator: Steven E. Suttles Originator: Olivia A. De Meo Originator: Robert D. Bales Originator: John C. Warner Publication_Date: 20251004 Title: Time-series measurements of oceanographic and seabed response data collected in Cape Cod Bay, Barnstable, MA, March 10 to April 7, 2021 Edition: 1.0 Geospatial_Data_Presentation_Form: netCDF Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P19NUBNW Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey 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. Online_Linkage: https://doi.org/10.5066/P19NUBNW Online_Linkage: https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P19NUBNW Description: 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. Purpose: 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. 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. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20210310 Ending_Date: 20210407 Currentness_Reference: ground condition at time data were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.330840 East_Bounding_Coordinate: -70.330020 North_Bounding_Coordinate: 41.742960 South_Bounding_Coordinate: 41.742300 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:a08f2d6b-c0a2-434f-ab7d-a1dd3391fabf Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sediment transport Theme_Keyword: suspended material (water) Theme_Keyword: time series datasets Theme_Keyword: ocean salinity Theme_Keyword: water temperature Theme_Keyword: ocean currents Theme_Keyword: ocean waves Theme_Keyword: surface-water level Theme_Keyword: water quality Theme_Keyword: ocean sciences Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: CMHRP Theme_Keyword: Woods Hole Coastal and Marine Science Center Place: Place_Keyword_Thesaurus: Common geographic areas Place_Keyword: Massachusetts Place_Keyword: North Atlantic Place_Keyword: Cape Cod Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Cape Cod Bay Place_Keyword: Sandy Neck Beach Place_Keyword: Barnstable Place_Keyword: Commonwealth of Massachusetts 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. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Steven E. Suttles Contact_Organization: U.S. Geological Survey, Northeast Region Contact_Position: Mechanical Engineer Contact_Address: Address_Type: mailing address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: US Contact_Voice_Telephone: 508-548-8700 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://cmgds.marine.usgs.gov/data-releases/media/2025/10.5066-P19NUBNW/ffcadc75b37a42b8a13a83c52183dbe1/quadpod.JPG Browse_Graphic_File_Description: Photo of quadpod with attached sensors. Browse_Graphic_File_Type: JPEG Cross_Reference: Citation_Information: Originator: Olivia A. De Meo Originator: Robert D. Bales Originator: Steven E. Suttles Originator: John C. Warner Publication_Date: 2024 Title: 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 Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P13AJGXV Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P13AJGXV Cross_Reference: Citation_Information: Originator: Daniel J. Nowacki Originator: Steven E. Suttles Originator: Robert D. Bales Originator: Olivia A. De Meo Publication_Date: 2024 Title: stglib: Oceanographic Time Series Data Processing Library Geospatial_Data_Presentation_Form: application/service Series_Information: Series_Name: U.S. Geological Survey software release Issue_Identification: DOI:10.5066/P13IQYFW Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P13IQYFW Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: 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. Logical_Consistency_Report: 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/. Completeness_Report: All instruments on the quadpod were free of biofouling when recovered. The dataset is considered complete. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: 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/ ). Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: 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. Lineage: Process_Step: Process_Description: 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. Process_Date: 20210310 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Steven E. Suttles Contact_Organization: U.S. Geological Survey, Northeast Region Contact_Position: Mechanical Engineer Contact_Address: Address_Type: mailing address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: US Contact_Voice_Telephone: 508-548-8700 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Process_Step: Process_Description: 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. Process_Date: 20210407 Process_Step: Process_Description: 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. Process_Date: 202506 Process_Step: Process_Description: 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). Process_Date: 202506 Process_Step: Process_Description: There was a typo in the first online link to the DOI, so this was fixed. (20251117) Process_Date: 20251117 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2251 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 (National Spatial Reference System 2011) Ellipsoid_Name: GRS_1980 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 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 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: 11261sigb.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11261sigb-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11261sigs-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11261sigs_diwasp-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11261sigb5.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11261sigb5-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11262sigb.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11262sigb-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11262sigb5.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11262sigb5-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11262sige1.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11262sige1-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11263mc-a.nc Entity_Type_Definition: Water temperature, conductivity, and salinity data from Seabird SBE37 MicroCat. Contains 8,042 time points with time interval of 300 seconds. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11264sgb.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11264sgs-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11264sgt-a.nc Entity_Type_Definition: Pressure and water level data from Seabird SBE26 Seagauge Wave and Tide recorder. Contains 3,350 time points with time interval of 720 seconds. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11265sonb_5m.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11265sonb_5m-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11265sonb_5m-xy.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11266absb.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11266absb-a.nc Entity_Type_Definition: Burst averaged acoustic backscatter profile data from Aquatec Acoustic Backscatter instrument. Contains 669 time points with time interval of 3,600 seconds. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11267vecb.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11267vecb-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11268vecb.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Detailed_Description: Entity_Type: Entity_Type_Label: 11268vecb-a.nc Entity_Type_Definition: 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. Entity_Type_Definition_Source: Coastal and Marine Hazards and Resources Program (CHMRP) Overview_Description: 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. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Steven E. Suttles Contact_Organization: U.S. Geological Survey, Northeast Region Contact_Position: Mechanical Engineer Contact_Address: Address_Type: mailing address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: US Contact_Voice_Telephone: 508-548-8700 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Resource_Description: 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. 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: NetCDF Format_Version_Number: netCDF-4, CF-1.10 Format_Information_Content: Time-series data in netCDF format following Climate and Forecast (CF) data Conventions version 1.10. File download sizes range from 0.175 to 45130 MB. File_Decompression_Technique: Compressed file of whole dataset and uncompressed individual files provided Transfer_Size: 150000 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://cmgds.marine.usgs.gov/data-releases/media/2025/10.5066-P19NUBNW/3d94b6f80fab461e8537711022ea3334/ccb21_timeseries_netcdf_files.zip Network_Resource_Name: https://doi.org/10.5066/P19NUBNW Network_Resource_Name: https://cmgds.marine.usgs.gov/ocean-time-series/experiments/10_5066_P19NUBNW/ Network_Resource_Name: https://cmgds.marine.usgs.gov/thredds/catalog/ocean-time-series/Data_Releases/10.5066-P19NUBNW/catalog.html Access_Instructions: The first link downloads all the netCDF files in a single zip file. The second link is to the landing page of the data release where files can be downloaded individually. The third link is to the experiment page on the Ocean Time-Series (OTS) Data portal, and the fourth link is to the THREDDS catalog for the data release on the OTS data portal. From the THREDDS catalog you can access the information for each self-describing netCDF file by selecting a file, then selecting OpenDAP access link. Fees: None. Technical_Prerequisites: These data can be viewed with any software capable of reading netCDF files. Metadata_Reference_Information: Metadata_Date: 20251118 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Steven E. Suttles Contact_Organization: U.S. Geological Survey, Northeast Region Contact_Position: Mechanical Engineer Contact_Address: Address_Type: mailing address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: US Contact_Voice_Telephone: 508-548-8700 Contact_Electronic_Mail_Address: 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_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998