Bathymetric data and grid of offshore Head of the Meadow Beach, Truro, MA on February 9, 2024

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Peter A. Traykovski
Publication_Date: 20240530
Title:
Bathymetric data and grid of offshore Head of the Meadow Beach, Truro, MA on February 9, 2024
Edition: 1.0
Geospatial_Data_Presentation_Form: raster and tabular data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P1N57AEG
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher:
U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
Online_Linkage: https://doi.org/10.5066/P1N57AEG
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Originator: Mira M. Anderberg
Publication_Date: 2024
Title:
Topographic and bathymetric data, imagery, and ground control data collected at Head of the Meadow Beach, Truro, Massachusetts in February and March 2024
Edition: 1.0
Geospatial_Data_Presentation_Form: digital files
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P1N57AEG
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Over, J.R., Sherwood, C.R., Traykovski, P.A., and Anderberg, M.M., 2024, Topographic and bathymetric data, imagery, and ground control data collected at Head of the Meadow Beach, Truro, Massachusetts in February and March 2024: U.S. Geological Survey data release, https://doi.org/10.5066/P1N57AEG.
Online_Linkage: https://doi.org/10.5066/P1N57AEG
Online_Linkage:
Description:
Abstract:
The data in this release re-map the beach and nearshore environment at Head of the Meadow Beach in Truro, MA and provide updated environmental context for the 2020 CoastCam installation that looks out at the coast shared by beachgoers, shorebirds, seals, and sharks. This is a collaboration with the National Park Service at Cape Cod National Seashore to monitor the region that falls within the field of view of CoastCam CACO-01, which are two video cameras aimed at the beach. In February and March 2024, U.S. Geological Survey and Woods Hole Oceanographic Institution (WHOI) scientists conducted field surveys to collect topographic and bathymetric data. Images of the beach for use in structure-from-motion were taken with a camera (SONY a6000) attached to a helium powered balloon-kite (Helikite). High-precision GPS targets (AeroPoints) were used as ground control points. Bathymetry was collected in the nearshore using a single-beam echosounder mounted on a surf capable self-righting electric autonomous surface vehicle. Agisoft Metashape (v. 1.8.1) was used to create a digital surface model and orthomosaic with the collected imagery.
Purpose:
These data may be used as a high-resolution bathymetry dataset of Head of the Meadow Beach to observe conditions and change over time and to validate the CoastCam.
Supplemental_Information:
For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2023-011-FA.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20240209
Currentness_Reference:
ground condition; one day of data collection on February 9, 2024
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Not planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.07939297
East_Bounding_Coordinate: -70.06812499
North_Bounding_Coordinate: 42.05995004
South_Bounding_Coordinate: 42.05012975
Keywords:
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: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: shoreline
Theme_Keyword: autonomous surface vehicle
Theme_Keyword: Woods Hole Oceanographic Institution
Theme_Keyword: WHOI
Theme_Keyword: ASV
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: National Seashore
Theme_Keyword: single-beam echo sounder
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: remote sensing
Theme_Keyword: single-beam echo sounder
Theme_Keyword: bathymetry
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: location
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:6616d181d34e7eb9eb7d6a50
Place:
Place_Keyword_Thesaurus: Common geographic areas
Place_Keyword: United States
Place_Keyword: Massachusetts
Place_Keyword: Truro
Place_Keyword: Cape Cod
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Head of the Meadow Beach
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si R. Over
Contact_Organization:
U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2297
Contact_Electronic_Mail_Address: jover@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description: Elevation relative to NAVD88-colored image of bathymetry
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment: Matlab v. 2020b, Emlid Studio v.1.4
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Publication_Date: 2023
Title:
Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Head of the Meadow Beach, Truro, MA in February and March 2023, U.S. Geological Survey Field Activity 2023-011-FA
Geospatial_Data_Presentation_Form: raster and tabular data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9FYVLCD
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication is the survey data of Head of the Meadow Beach from 2023.
Online_Linkage: https://doi.org/10.5066/P9FYVLCD
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Originator: Eric Marsjanik
Publication_Date: 2022
Title:
Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Head of the Meadow Beach, Truro, MA in March 2022, U.S. Geological Survey Field Activity 2022-015-FA
Geospatial_Data_Presentation_Form: raster and tabular data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9GEVWG1
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication is the 2022 survey data of Head of the Meadow Beach.
Online_Linkage: https://doi.org/10.5066/P9GEVWG1
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Publication_Date: 2022
Title:
Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Head of the Meadow, Truro in February 2021, U.S Geological Survey Field Activity 2021-014-FA
Geospatial_Data_Presentation_Form: raster and tabular data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9D94NZ3
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication is the survey data of Head of the Meadow Beach from 2021.
Online_Linkage: https://doi.org/10.5066/P9D94NZ3
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Originator: Sandra M. Brosnahan
Originator: Eric E. Marsjanik
Originator: John S. Borden
Publication_Date: 2021
Title:
Topographic and bathymetric data, sediment samples, and beach imagery collected at Head of the Meadow, Truro in March 2020, U.S Geological Survey Field Activity 2020-015-FA
Geospatial_Data_Presentation_Form: raster and tabular data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9KSG1RQ
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication is the survey data of Head of the Meadow Beach from 2020.
Online_Linkage: https://doi.org/10.5066/P9KSG1RQ
Cross_Reference:
Citation_Information:
Originator: Holly Francis
Originator: Peter A. Traykovski
Publication_Date: 2021
Title:
Development of a highly portable unmanned surface vehicle for surf zone bathymetric surveying
Series_Information:
Series_Name: Journal of Coastal Research
Issue_Identification: Volume 37, Issue 5
Publication_Information:
Publication_Place: online
Publisher: Allen Press
Other_Citation_Details:
Volume 37, Issue 5, p. 933-945, this publication describes the theory behind attaching and processing data from a single beam echosounder attached to an autonomous survey vehicle.
Online_Linkage: https://doi.org/10.2112/JCOASTRES-D-20-00143.1
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
No official quality control (QC) test was performed, but all depth values are internally consistent in relation to each other and are comparable to values of published bathymetry in the area (see Over and others, 2021;2022;2023). The product is interpolated and small-scale bathymetry features are not resolved. The actual vertical values may be much less accurate between tracklines. Yaw, pitch, and roll, are not taken into account due to the wide beamwidth, for more processing information see Francis and Traykovski (2021).
Logical_Consistency_Report:
The raster file represents single beam echo-sounder bathymetry data collected by Peter Traykovski (WHOI). These data are a combination of post-processed kinematic (PPK) elevations collected using a GNSS receiver (EMLID Reach M2) and soundings from a Cerulean s500 single beam echosounder mounted on a self-righting autonomous surface vehicle. PPK data were corrected to an onshore base station (JAVA Triumph). The GNSS antenna is offset from the echo-sounder by 0.1 m (referred to as Antenna_Z_Offset), and this is taken into account when calculating the depth in the trackline and echosounder variables (see Processing Steps).
Completeness_Report:
Collected data were edited for erroneous soundings before being incorporated into the final bathymetric grid, the mask prevents extrapolation of data beyond the bounds but does not exclude any data. The CSV of raw PPK and echosounder values have been edited to remove returns at the beginning and end of the survey when the Autonomous Surface Vehicle (ASV) was on land.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigation information was acquired from the GNSS receiver in PPK mode with a multi-band GNSS antenna that has a theoretical horizontal accuracy of 1-5 cm and average reported xy standard deviation(SD) of 4.2 cm.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The location information was acquired from the GNSS receiver in PPK mode with a multi-band GNSS antenna with a theoretical horizontal accuracy of 1-5 cm and average reported z SD of 5.5 cm. The navigational accuracies do not represent the accuracy of the derived bathymetric soundings. The vertical accuracy of the raw data in water depths of 10 meters or less, based on industry standard system specifications for 450 and 500 kHz transmit frequencies, is 5-10 cm. Individual point errors (20-30% of points) due to extreme movement of the ASV could be as high as 10 cm, but process steps to interpolate and fit the raster remove a large portion of varaibility.
Lineage:
Process_Step:
Process_Description:
The single-beam bathymetry data were collected by launching the ASV Yellowfin into the water from the surf zone. Yellowfin is equipped with a Cerulean s500 echosounder and collects single-beam data and has an EMLID Reach M2 GPS for positioning data. The boat was controlled near the shore by Peter Traykovski and put on auto-pilot using predetermined tracklines for longer transects offshore. A base station was set-up on reference mark HOM RM1 for the duration of the survey. Note that on the day of collection the boat stopped multiple times due to being entangled with seaweed in the nearshore. The raw bathymetry data was processed with the following steps: 1.Parsed the echosounder data (NMEA GPS Puck, Time, and Echosounder range) into MATLAB (v. 2020b) using MATLAB Scripts developed by Peter Traykovski at WHOI - see contact below 2. Post Processed Kinematic (PPK) GNSS data from the ASV was corrected using the base station (Java Triumph-1) data in Emlid Studio (Version 1.4) using the datum NAD83(2011) and then Geoid 18 for the vertical datum NAVD88. A projection for UTM Zone 19N was also specified to get the Easting and Northing information. 3. Refined time alignment to account for any small time delays between GPS data and echosounder data collection. This is accomplished using the time lagged cross correlation of echosounder range and PPK GNSS altitude in locations with a relatively flat bottom. The resulting time shift was 36 seconds. The GPS measures vertical fluctuation of the boat due to waves and these fluctuations are also visible in echosounder data. Outliers in the echosounder data were removed using a de-spiking function. The equation in Step 5 removes the vertical fluctuation due to waves from the echosounder data leaving only true bathymetry if GPS and the echosounder are well synced. The lagged cross correlation processing ensures they are synced optimally. 4. The PPK GNSS elevation (GPS_z) positions (collected at a higher frequency than the echosounder) were interpolated to the time of echosounder samples (Echo_z) with the MATLAB function interp1 (linear interpolation). These interpolated data are available in 2024-011-FA_HOM_raw_bathymetry.csv 5. Calculated sea floor elevation with reference to the NAVD88 datum in meters using the following equation: Seafloor_z (Depth) = Echo_z + GPS_z - Antenna_Z_Offset; Antenna_Z_Offset = 0.1 m was the offset from the GNSS antenna to the echosounder transducer on the z-axis of the ASV. 6. Gridded Seafloor_z values onto 1 m resolution UTM eastings, northings using MATLAB file exchange script regularizedata3d by Jamal (2020), a cubic interpolation with the optimum smoothness coefficient determined by a Monte Carlo optimization procedure for the data regularization. Regularizedata3d entailed removing one cross-shore line of data from the processing and adjusting the smoothness parameter so the overall surface fit best fits the removed data. The process was then repeated for all the lines of data. The optimized smoothing parameter was used with all the data for the final processing. 7. The MATLAB function 'roipoly' returned the mask as a binary image, which sets pixels inside the region of interest (ROI) to 1 and pixels outside the ROI to 0. The boundary was developed so that there were no extrapolated bathymetry data outside the tracklines. The masks extent was the convex hull of the tracklines positions (x,y) and a bounding z coordinate of 0.3 represented the surface in reference to NAVD88 in meters. 8. Exported gridded 1 m data in NAD83(2011)/UTM Zone 19N in NAVD88 meters as a GeoTIFF: 2024-011-FA_HOM_bathymetry_UTM19N_NAVD88_1m.tif. Note that using NAVD88 as a height, means that the depths are not true depths but the elevation of the seafloor above or below the geoid.
Jamal (2020). RegularizeData3D (https://www.mathworks.com/matlabcentral/fileexchange/46223-regularizedata3d), MATLAB Central File Exchange. Retrieved September 23, 2020.
Process_Date: 202402
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peter Traykovski
Contact_Organization: Woods Hole Oceanographic Institution
Contact_Position: Associate Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: 226 Woods Hole Rd, MS #12
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Contact_Voice_Telephone: 508-289-2638
Contact_Electronic_Mail_Address: ptraykovski@whoi.edu
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.00000001
Longitude_Resolution: 0.00000001
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: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.0001
Altitude_Distance_Units: meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2024-011-FA_HOM_bathymetry_UTM19N_NAVD88_1m.tif
Entity_Type_Definition:
The GeoTIFF is the interpolated grid of the raw soundings representing the bathymetry of offshore Head of the Meadow Beach on February 9, 2024.
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: Value
Attribute_Definition:
Seafloor elevation orthometric height NAVD88 (m) using Geoid 18 in NAD83(2011)/UTM Zone 19N
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -14.0331
Range_Domain_Maximum: 1.5167
Attribute_Units_of_Measure: meters
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -999
Enumerated_Domain_Value_Definition: No data
Enumerated_Domain_Value_Definition_Source: Producer-defined
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2024-011-FA_HOM_raw_bathymetry.csv
Entity_Type_Definition:
The CSV file contains 36,759 data points of the processed unsmoothed s500 sonar data with interpolated PPK GNSS positions and the calculated seafloor_z from Processing Step 5.
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: FAN
Attribute_Definition: USGS Field Activity Number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2024-011-FA
Enumerated_Domain_Value_Definition: USGS year, ID, and Field Activity
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: Latitude NAD83[2011]
Attribute_Definition:
Post-processed latitude of ASV GNSS antenna position of each data point.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 42.05026368
Range_Domain_Maximum: 42.05980501
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Longitude NAD83[2011]
Attribute_Definition:
Post-processed longitude of ASV GNSS antenna position of each data point.
Attribute_Definition_Source: None
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.07918051
Range_Domain_Maximum: -70.06830738
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Ellipsoid height NAD83[2011]
Attribute_Definition:
Post-processed height in meters of ASV GNSS antenna position of each data point based on the NAD83(2011) reference ellipsoid.
Attribute_Definition_Source: None
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -42.034
Range_Domain_Maximum: -25.185
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Northing UTM19N
Attribute_Definition:
Post-processed X-coordinate of ASV GNSS antenna position of each data point in NAD83(2011)/UTM Zone 19N.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4655914.545
Range_Domain_Maximum: 4656975.156
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Easting UTM19N
Attribute_Definition:
Post-processed Y-coordinate of ASV GNSS antenna position of each data point, in NAD83(2011)/UTM Zone 19N.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 410699.883
Range_Domain_Maximum: 411604.025
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: GPS_z
Attribute_Definition:
Post-processed Z-coordinate of ASV GNSS antenna position of each data point using NAVD88 correction with Geoid 18.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.212
Range_Domain_Maximum: 4.777
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Echo_z
Attribute_Definition:
The unsmoothed Cerulean s500 bed detection range, or the distance between the echosounder and the bottom.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -16.248
Range_Domain_Maximum: -0.923
Attribute_Units_of_Measure: meters
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NaN
Enumerated_Domain_Value_Definition: No data
Enumerated_Domain_Value_Definition_Source: Producer-defined
Attribute:
Attribute_Label: Seafloor_z
Attribute_Definition:
Elevation in meters of the seafloor in NAVD88, calculated using Seafloor_z = Echo_z + GPS_z - Antenna_Z_Offset.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -14.464
Range_Domain_Maximum: 2.400
Attribute_Units_of_Measure: meters
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NaN
Enumerated_Domain_Value_Definition: No data
Enumerated_Domain_Value_Definition_Source: Producer-defined
Overview_Description:
Entity_and_Attribute_Overview:
GeoTIFF raster has 920 columns and 1080 rows. Data from the GPS positions and echosounder data are the basis for the raster.
Entity_and_Attribute_Detail_Citation: USGS Field Activity 2024-011-FA
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: mailing and physical address
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
GeoTIFF 2024-011-FA_HOM_bathymetry_UTM19N_NAVD88_1m.tif is a grid of bathymetric data and then the raw GPS and echosounder data as a CSV file (2024-011-FA_HOM_raw_bathymetry.csv).
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 for other purposes, nor on all computer systems, 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. Not for navigational use.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoTIFF
Format_Version_Number: 1.0.0
Format_Specification: 32-bit floating point GeoTIFF format
File_Decompression_Technique: LZW compression
Transfer_Size: 2.89
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in the list above is to directly download all the data on the page, the second link is to the page to download files individually, and the third link is the doi to the main publication.
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Version_Number: Exported from Excel Office 365 16.01
Format_Information_Content: The CSV file contains raw GPS trackline and echosounder data.
Transfer_Size: 3.06
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in the list above is to directly download all the data on the page, the second link is to the page to download files individually, and the third link is the doi to the main publication.
Fees: none
Technical_Prerequisites:
These data are available as a 32-bit floating point GeoTIFF image. To utilize these data, the user must have an image viewer, image processing, GIS software package capable of importing a GeoTIFF image.
Metadata_Reference_Information:
Metadata_Date: 20240530
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si R. Over
Contact_Organization:
U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2297
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: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

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