Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2021 Title: Topobathy grid representing the backshore to the nearshore at Head of the Meadow Beach, Truro from data taken during field activity 2020-015-FA on March 6 and 10, 2020 Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9KSG1RQ 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/P9KSG1RQ Online_Linkage: https://cmgds.marine.usgs.gov/data/field-activity-data/2020-015-FA/ Larger_Work_Citation: Citation_Information: Originator: C. Sherwood Originator: P. Traykovski Originator: J. Over Originator: J. Borden Originator: S. Brosnahan Originator: E. Marsjanik Originator: M. Martini Publication_Date: 2021 Title: Topographic and bathymetric data, sediment samples, and imagery collected at Head of the Meadow Beach, Truro in March 2020, U.S Geological Survey Field Activity 2020-015-FA Edition: 1.0 Geospatial_Data_Presentation_Form: digital files 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: Over, J.R., Sherwood, C.R., Traykovski, P., Brosnahan, S.M., Martini, M.A., Marsjanik, E., Borden, J., 2021, 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: U.S Geological Survey data release, https://doi.org/10.5066/P9KSG1RQ. Online_Linkage: https://doi.org/10.5066/P9KSG1RQ Description: Abstract: The data in this release map the beach and nearshore environment at Head of the Meadow Beach in Truro, MA and provide environmental context for the camera calibration information for the 2019 CoastCam installation that looks out at the coast shared by beachgoers, shorebirds, seals, and sharks. This is related to the field activity 2020-015-FA and a collaboration with the National Park Service at Cape Cod National Seashore to monitor the region that falls within the field of view of the CoastCam, which are two video cameras aimed at the beach. On March 4, 6, and 10, 2020, U.S Geological Survey and Woods Hole Oceanographic Institution (WHOI) scientists conducted field surveys to collect position and orientation information for the CoastCam cameras and map the field of view. Elevation data were collected using a real time kinematic – satellite navigation system (RTK-GNSS) receiver attached to a pole and walked on the beach. Point data of the beach face were collected along transects and at periodic locations of plywood targets moved throughout the day within the CoastCam view. Grain-size analysis was performed on sediment samples collected with a spade along multiple profiles from the bluff base to the intertidal zone. Images of the beach were taken with a camera (Ricoh GRII) and a post-processed kinematic (PPK) system attached to a kitesurfing kite, and high-precision 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 survey vehicle. Agisoft Metashape (v. 1.6.1) was used to create a digital elevation model with the collected imagery and this was merged with the bathymetry in MatLab (v. 2020) to create a continuous topobathy product. Purpose: This topobathymetric grid represents approximately 0.1778 square kilometers of the bluffs, dunes, beach, and nearshore of Head of the Meadow Beach in view of the CoastCam setup. Supplemental_Information: For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2020-015-FA. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20200306 Ending_Date: 20200310 Currentness_Reference: ground condition. Two days of surveying. Bathymetry collected on March 10 and topography collected on March 6. Status: Progress: Complete Maintenance_and_Update_Frequency: Not planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.08045839 East_Bounding_Coordinate: -70.07186358 North_Bounding_Coordinate: 42.05825375 South_Bounding_Coordinate: 42.05006994 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:ca4d364e-fe51-4467-8931-1c25288f0e89 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: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: remote sensing Theme_Keyword: single-beam echo sounder Theme_Keyword: bathymetry Theme_Keyword: topography Theme_Keyword: datasets Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: oceans Theme_Keyword: elevation Place: Place_Keyword_Thesaurus: None Place_Keyword: USA Place_Keyword: Truro Place_Keyword: Massachusetts Place_Keyword: Head of the Meadow Beach Place_Keyword: Cape Cod National Seashore 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 Over Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2269 Contact_Electronic_Mail_Address: jover@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: 2020015FA_Truro_topobathy_browse.JPG Browse_Graphic_File_Description: Depth-colored image of topobathy data collected onshore and offshore of Head of the Meadow Beach, Truro MA Browse_Graphic_File_Type: JPG Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The GNSS used on the ASV and to collect the imagery used to model the topography has theoretical vertical and horizontal accuracies of 5 meters. See the bathymetry and imagery datasets and metadata in the larger work citation for more details. Logical_Consistency_Report: This file represents the merged 1 meter single beam echo-sounder bathymetry data and digital surface model created from imagery collected by Peter Traykovski or WHOI. These data were combined with post-processed kinematic (PPK) orthometric heights collected using a GNSS receiver (EMLID Reach M2) corrected to a base station (JAVA Triumph) onshore in GEOID 12B NAVD88. Completeness_Report: This product represent the full extent of the topography and bathymetry available in the larger work citation. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Navigation information was acquired from a GNSS receiver (EMLID Reach M2) in PPK mode with a Multi-band GNSS antenna that has an estimated horizontal accuracy of 5 meters. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The location information was acquired from a GNSS receiver (EMLID Reach M2) in PPK mode with a Multi-band GNSS antenna and hotshoe adapter with an estimated vertical accuracy of 5 m. Lineage: Process_Step: Process_Description: The 25 cm Digital Surface Model (DSM) 2020015FA_Truro_DSM_25cm.tif and the 1 m bathymetry grid 2020015FA_Truro_bathymetry_1m.tif (available from the larger work citation) were merged and interpolated over a 1 m grid in MatLab v. 2020b with the following steps. 1. The data (x,y,z) from the DSM and Bathy grids are combined with the interpolation method regularizedata3d (bicubic interpolation) with a smoothness coefficient of 0.001 (used for data with low noise where the input points nearly coincide with the output surface) by Jamal (2020). 2. Combined grid is then masked using 'roipoly' which returns the mask as a binary image, setting pixels inside the region of interest polygon to 1 and pixels outside the ROI to 0. The boundary is determined by specifiying the polygon verticies as the regularizedata3D outputs (x,y,z) from the previous step and prevents extrapolation beyong the tracklines of the Bathy and DSM extent. 3. The final merged GeoTIFF is created using the GRIDobj tool in the TopoToolbox (Schwanghart and Scherler, 2014) which uses the interpolated grid from Step 1 and the mask from step 2 to create the final output. The GeoTIFF is output in NAD83(2011)/UTM Zone 19N in the vertical datum NAVD88 in meters. Schwanghart, W., Scherler, D. (2014): TopoToolbox 2 – MATLAB-based software for topographic analysis and modeling in Earth surface sciences. Earth Surface Dynamics, 2, 1-7. [DOI: 10.5194/esurf-2-1-2014] Jamal (2020). RegularizeData3D (https://www.mathworks.com/matlabcentral/fileexchange/46223-regularizedata3d), MATLAB Central File Exchange. Retrieved September 23, 2020. Process_Date: 20200917 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter Traykovski Contact_Organization: Woods Hole Oceanographic Institue 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 Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 901 Column_Count: 701 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 19 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -69.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 1 Ordinate_Resolution: 1 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 (National Spatial Reference System 2011) Ellipsoid_Name: GRS_80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222101 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 0.001 Altitude_Distance_Units: meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: There are no text attributes associated with a binary GeoTIFF image. GeoTIFF pixels represent elevation in meters in reference to NAVD88. No-data values is -32767. Entity_and_Attribute_Detail_Citation: USGS Field Activity 2020-015-FA Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jin-Si Over Contact_Organization: U.S. Geological Survey 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 x2269 Contact_Electronic_Mail_Address: jover@usgs.gov Resource_Description: File 2020015FA_Truro_topobathy_1m.tif containing a 64-bit floating point GeoTIFF grid. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: GeoTIFF Format_Version_Number: 1.0.0 Format_Specification: 64-bit floating point GeoTIFF format Format_Information_Content: File containing 64-bit floating point GeoTIFF representing a topobathy model of Head of the Meadow Beach, MA in March 2020. Transfer_Size: 1.7 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://cmgds.marine.usgs.gov/data/field-activity-data/2020-015-FA/ Network_Resource_Name: https://doi.org/10.5066/P9KSG1RQ Access_Instructions: The first link in the list above is to the field data page and the second link is to the publication landing page. Fees: None. Technical_Prerequisites: These data are available as a 64-bit floating point GeoTIFF image. To utilize these data, the user must have an image viewer, image processing, or GIS software package capable of importing a GeoTIFF image. Free spatial data viewers or proprietary software such as ArcGIS Earth or Google Earth Pro are capable of displaying the data. See: http://www.esri.com/software/arcgis-earth, or https://www.google.com/earth/desktop/. The zip file also contains associated metadata. Metadata_Reference_Information: Metadata_Date: 20210318 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jin-Si Over Contact_Organization: U.S. Geological Survey 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 x2269 Contact_Electronic_Mail_Address: jover@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: None Metadata_Use_Constraints: None