Metadata: Identification_Information: Citation: Citation_Information: Originator: Jin-Si R. Over Publication_Date: 20230725 Title: Ground control points Head of the Meadow Beach, Truro, MA on March 10, 2023 Edition: 1.0 Geospatial_Data_Presentation_Form: tabular data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9FYVLCD 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/P9FYVLCD Online_Linkage: https://www.sciencebase.gov/catalog/item/646515e6d34ec179a83dc2e1 Larger_Work_Citation: 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, Massachusetts in March and April 2023, U.S. Geological Survey Field Activity 2023-011-FA. Edition: 1.0 Geospatial_Data_Presentation_Form: digital files 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: Suggested citation: Over, J.R., Sherwood, C.R., and Traykovski, P.A., 2023, Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Head of the Meadow Beach, Truro, Massachusetts in March and April 2023, U.S. Geological Survey Field Activity 2023-011-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9FYVLCD. Online_Linkage: https://doi.org/10.5066/P9FYVLCD Online_Linkage: https://www.sciencebase.gov/catalog/item/6463d0ffd34ec179a83d2ff1 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 related to the field activity 2022-015-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 CoastCam CACO-01, which are two video cameras aimed at the beach. In March and April 2023, U.S. Geological Survey and Woods Hole Oceanographic Institute (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) and a post-processed kinematic (PPK) system attached to a helium powered balloon-kite (Helikite). High-precision GPS targets (AeroPoints) and numbered black and white tarps 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: Ground control points for georeferencing the aerial imagery. 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: 20230310 Currentness_Reference: ground condition; one day of data collection on March 10, 2023 Status: Progress: Complete Maintenance_and_Update_Frequency: Not planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.07866616 East_Bounding_Coordinate: -70.07603475 North_Bounding_Coordinate: 42.05209753 South_Bounding_Coordinate: 42.05021380 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: Ground control point Theme_Keyword: AeroPoint Theme_Keyword: Helikite Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: Global Positioning System (GPS) observations Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: GPS measurement Theme_Keyword: geolocation measurement Theme_Keyword: geospatial datasets 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:646515e6d34ec179a83dc2e1 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: https://www.sciencebase.gov/catalog/file/get/646515e6d34ec179a83dc2e1?name=2023-011-FA_Truro_nav_browse.JPG&allowOpen=true Browse_Graphic_File_Description: Browse graphic of the spatial distribution of the ground control points. Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Propeller 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 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 latest survey data of Head of the Meadow Beach from 2022. 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 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 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 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: AeroPoints have an internal accuracy (positions relative to other AeroPoints in the same dataset) down to 1 mm, but the general internal horizontal accuracy is 10 mm or better and the vertical accuracy is 20 mm or better. Local accuracy is assessed by taking GPS shots on top of AeroPoints and the GPS is referencing local reference mark HOM RM1. Global accuracy (AeroPoints relative to NAD83[2011] datum) is assessed by using Continuously Operating Reference Stations (CORS) network corrections, the positions and elevations are produced with variance data and the minimum global accuracy of the AeroPoints can be calculated using the distance from the base station: Global Accuracy = Internal Accuracy in mm + (Baseline Distance *2). Logical_Consistency_Report: The file contains USGS field activity 2023-011-FA navigation data: ground control points (AeroPoints) for use in tandem with the aerial imagery. Completeness_Report: There are a total of 10 usable ground control points. AeroPoints were surveyed with the RTK equipment for QC and results were compared to the Propeller Network values; all values were within 2 cm, but as the RTK values are less accurate only the Propeller values are provided for the AeroPoints. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: See attributes for internal xy variance in millimeters. Local accuracy is 2 cm based on RTK positions in relation to the known reference mark. Minimum global horizontal accuracy is 3 cm, average is 1.2 cm. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: See attributes for internal z variance in millimeters. Local accuracy is 2 cm based on RTK positions in relation to the known reference mark. Minimum global vertical accuracy is 4 cm, average is 2.2 cm. Lineage: Process_Step: Process_Description: The ground control points were processed with the following steps: 1. Ten AeroPoints were deployed evenly spaced across the survey area. AeroPoints were left on for ~2 hours to collect GNSS data. 2. Once connected to Wifi, the AeroPoint data were uploaded and run through a post-processing kinematic algorithm of the CORS network to get a global accuracy. The data were exported with xyz variances in the horizontal datum NAD83(2011) to produce latitude, longitude, and ellipsoid heights, and then UTM19N and NAVD88 using Geoid 18 was used to produce orthometric heights. These are exported to a CSV file and named 2023011FA_Truro_nav_GCPs.csv. Process_Date: 202304 Process_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: 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: jover@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: 10 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: 0.001 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: 2023-011-FA_Truro_nav_GCPs.csv Entity_Type_Definition: Ground control point positions, elevations, and attributes 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: 2023-011-FA Enumerated_Domain_Value_Definition: Year, USGS ID, and Field Activity Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: Point ID Attribute_Definition: Unique point identification number. Attribute_Definition_Source: Processor defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 10 Attribute: Attribute_Label: Attributes Attribute_Definition: Unique identifier for ground control points. Prefix AERO### refers to the AeroPoints and the last 3 digits of its identifying code. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Latitude NAD83[2011] Attribute_Definition: Post-processed latitude of AeroPoint position (NAD83[2011]). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 42.05021380 Range_Domain_Maximum: 42.05209753 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Longtitude NAD83[2011] Attribute_Definition: Post-processed longitude of AeroPoint position (NAD83[2011]). Attribute_Definition_Source: None Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -70.07866616 Range_Domain_Maximum: -70.07603475 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Ellipsoid height NAD83[2011] Attribute_Definition: Post-processed height in meters of AeroPoint on the NAD83(2011) reference ellipsoid. Attribute_Definition_Source: None Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -23.979 Range_Domain_Maximum: -19.378 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Northing 19N Attribute_Definition: Post-processed interpolated X-coordinate of AeroPoint in NAD83(2011)/UTM Zone 19N. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4655911.532 Range_Domain_Maximum: 4656123.237 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Easting 19N Attribute_Definition: Post-processed interpolated Y-coordinate of AeroPoint in NAD83(2011)/UTM Zone 19N. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 410738.908 Range_Domain_Maximum: 410955.576 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Orthometric height NAVD88 Attribute_Definition: Post-processed Z-coordinate of AeroPoint using NAVD88 Geoid 18. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.605 Range_Domain_Maximum: 8.209 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Xvar mm Attribute_Definition: Variance in the X-coordinate from post-processing Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.6 Range_Domain_Maximum: 2.6 Attribute_Units_of_Measure: millimeters Attribute: Attribute_Label: Yvar mm Attribute_Definition: Variance in the Y-coordinate from post-processing Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.7 Range_Domain_Maximum: 6.2 Attribute_Units_of_Measure: millimeters Attribute: Attribute_Label: Zvar mm Attribute_Definition: Variance in the Z-coordinate from post-processing Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.6 Range_Domain_Maximum: 4.9 Attribute_Units_of_Measure: millimeters Attribute: Attribute_Label: Baseline distance km Attribute_Definition: distance of AeroPoint from nearest used processing network base station Attribute_Definition_Source: Propeller Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.04 Range_Domain_Maximum: 9.44 Attribute_Units_of_Measure: kilometers Overview_Description: Entity_and_Attribute_Overview: These attribute definitions describe each column of information in the CSV file of the AeroPoint GCP information. Entity_and_Attribute_Detail_Citation: USGS Field Activity 2023-011-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: 2023011FA_Truro_nav_GCPs.csv contains the ground control point data to be used with the aerial imagery. 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. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: CSV Format_Version_Number: Exported from Excel Office 365 16.01 Format_Information_Content: The CSV file 2023012FA_Truro_nav_GCPs.csv contains ground control data. Transfer_Size: 0.03 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/646515e6d34ec179a83dc2e1 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/646515e6d34ec179a83dc2e1 Network_Resource_Name: https://doi.org/10.5066/P9FYVLCD 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, and the third link is the doi to the main publication. Fees: none Technical_Prerequisites: The user must have software capable reading CSV format. Metadata_Reference_Information: Metadata_Date: 20230725 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