Metadata: Identification_Information: Citation: Citation_Information: Originator: Jin-Si R. Over Publication_Date: 20221006 Title: Orthomosaic representing Marconi Beach, Wellfleet, MA March 11, 2022 Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9L1KCQB 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/P9L1KCQB Online_Linkage: https://www.sciencebase.gov/catalog/item/62deefcdd34e952be90941a0 Larger_Work_Citation: Citation_Information: Originator: Jin-Si R. Over Originator: Chris R. Sherwood Originator: Peter A. Traykovski Originator: Marie K. Bartlett Publication_Date: 2022 Title: Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Marconi Beach, Wellfleet, MA in March 2022, U.S Geological Survey Field Activity 2022-014-FA. Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital files Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9L1KCQB 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 Bartlett, M.K., 2022, Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Marconi Beach, Wellfleet, MA in March 2022, U.S Geological Survey Field Activity 2022-014-FA: U.S Geological Survey data release, https://doi.org/10.5066/P9L1KCQB. Online_Linkage: https://doi.org/10.5066/P9L1KCQB Online_Linkage: https://www.sciencebase.gov/catalog/item/62dee032d34e952be9094176 Description: Abstract: The data in this release map the beach and nearshore environment at Marconi Beach in Wellfleet, MA and provide updated environmental context for the 2021 CoastCam installation that looks out at the coast shared by beachgoers, shorebirds, seals, and sharks. This is related to the field activity 2022-014-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-02, which are two video cameras aimed at the beach. In March 2022, U.S Geological Survey and Woods Hole Oceanographic Institute (WHOI) scientists conducted field surveys to map the CoastCam field of view. Aerial 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 filled 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 with the collected imagery, which was merged with the bathymetry in MATLAB (v. 2020b) to create a continuous topobathy product. Purpose: This orthomosaic can be used for visual inspection of beach features. Supplemental_Information: For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-014-FA. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20220311 Currentness_Reference: ground condition; represents the state of the beach on March 11, 2022 Status: Progress: Complete Maintenance_and_Update_Frequency: Not planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -69.96488651 East_Bounding_Coordinate: -69.96167291 North_Bounding_Coordinate: 41.89603165 South_Bounding_Coordinate: 41.89069208 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: Helikite Theme_Keyword: Agisoft Metashape Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: remote sensing Theme_Keyword: structure from motion Theme_Keyword: datasets Theme_Keyword: aerial photography Theme_Keyword: coastal processes Theme_Keyword: geomorphology Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: imagerybaseMapsEarthCover Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:62deefcdd34e952be90941a0 Place: Place_Keyword_Thesaurus: Common geographic areas Place_Keyword: United States Place_Keyword: Wellfleet Place_Keyword: Massachusetts Place_Keyword: Cape Cod Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Marconi Beach Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. 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. Not for navigational use. 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_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/62deefcdd34e952be90941a0?name=2022014FA_Marconi_ortho_browse.JPG&allowOpen=true Browse_Graphic_File_Description: Real Color RBG image of Marconi Beach, Wellfleet, MA on March 11, 2022. Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Agisoft Metashape v1.8.1 Cross_Reference: Citation_Information: Originator: Jin-Si R. Over Originator: Andrew C. Ritchie Originator: Christine Kranenburg Originator: Jennifer (Jenna) A. Brown Originator: Daniel D. Buscombe Originator: Tom Noble Originator: Christopher R. Sherwood Originator: Jonathan Warrick Originator: Phillipe Wernette Publication_Date: 2021 Title: Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation Series_Information: Series_Name: Open-File Report Issue_Identification: 2021-1039 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: This publication includes the general methodology for processing imagery in Metashape to produce DEMs and ortho products. Online_Linkage: https://doi.org/10.3133/ofr20211039 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, sediment samples, structure from motion imagery, and reference mark data collected at Marconi Beach, Wellfleet in winter 2021, U.S Geological Survey Field Activity 2021-022-FA Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9POZ9VH Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: This publication is the original/first survey data of Marconi beach from 2021. Online_Linkage: https://doi.org/10.5066/P9POZ9VH Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The positional information used on the Helikite and ground control point (GCP) datasets and metadata are available in the imagery and navigational components of the larger work citation. No color corrections were applied. GCP error in the Metashape project was used to assess overall error in the product. Logical_Consistency_Report: There is one orthomosaic of Marconi Beach created from imagery in the larger work citation, the extent of which is greater than that of the digital surface model in the larger citation because it includes water and edges that do not photogrammetrically reconstruct. Completeness_Report: The structure-from-motion process that built the Digital Surface Model and orthomosaic used all the available imagery and location information at the start, all photos aligned. 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 a theoretical horizontal accuracy of 2 cm. However, using these values in Metashape returned a poor product so the accuracy was loosened to 10 cm and unchecked as positional control points to accommodate the unknown horizontal offset of the GPS to the camera and to rely more on the GCPs, which have a theoretical accuracy of 1-2 cm. The total horizontal RMSE of the GCPs was xy: 0.066, 0.046 (m). The final product was compared to the previous survey at Marconi Beach (see second cross-reference) and the orthomosaics align at stable features. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: There are no vertical positions associated with this data product. Lineage: Process_Step: Process_Description: A Digital Surface Model was created in Agisoft Metashape v. 1.8.1 using the following general steps (see Over and others, 2021): 1. Project was created with imagery (located in larger work citation 2022014FA_Marconi_f1.zip) and position (located in larger work citation 2022014FA_Marconi_photolocations.csv) data imported with the NAD83(2011)/UTM19N and NAVD88 datums. An 0.15 m GNSS/IPS offset in the z direction was used to represent the approximate offset of the GNSS mount and camera on the Helikite. Photos were aligned at a low accuracy so that GCPs could be automatically detected in the point cloud. Twenty GCPs (2022014FA_Marconi_nav_GCPs.csv) were located. 2. Accuracies for the GCPs and camera positions were set to 0.02 m and 10 cm, respectively, but the positions were only used as check points and to speed up alignment. The photos were re-aligned with high accuracy (the pixels were not subsampled for increased processing speed) using a keypoint limit of 40,000 and unlimited tie points. Alignment uses the positions and matching pixels between images to create point clouds and puts the imagery into a real-world spatial context. Photos that failed to align/find tie points contained breaking waves and water. 3. The Metashape software used least squares to refine and optimize the camera positions, GCPs, and lens model with gradual selection and optimization parameters of: Ru = 12, Pa = 4, and Re = 0.3 to minimize reprojection error, or the distance between the measured points and the software created points. 4. A dense point cloud was generated using high-quality (images were not subsampled) and a low-frequency filtering algorithm. The dense point cloud was then edited to remove noise by filtering with point confidence before generating an interpolated digital surface model (the software calls all models elevation models, but a surface model includes vegetation/canopy returns, a terrain model would be only bare earth returns). 5. The digital surface model was used to build an RGB averaged orthomosaic, which was then exported from the software at a resolution of 10 cm in NAD83(2011)/UTM Zone 19N (ESPG:6348). 6. The orthorectified product was turned into a cloud-optimized GeoTIFF (COG) using gdal_translate with the following command: for %i in (.\*.tif) do gdal_translate %i .\cog\%~ni_cog.tif -of COG -stats -co BLOCKSIZE=256 -co COMPRESS=DEFLATE -co PREDICTOR=YES -co NUM_THREADS=ALL_CPUS -co BIGTIFF=YES (v. 3.1.4 accessed October 20, 2020 https://gdal.org/), where i is the name of each GeoTIFF section. Process_Date: 202207 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: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543 Contact_Voice_Telephone: 508-548-8700 x2297 Contact_Electronic_Mail_Address: jover@usgs.govSpatial_Data_Organization_Information: Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 5900 Column_Count: 2600 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: 0.1 Ordinate_Resolution: 0.1 Planar_Distance_Units: meters 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: 298.257222101 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: 2022014FA_Marconi_Orthomosaic_10cm_cog.tif Entity_Type_Definition: Pixel-based raster matrix with 3 layers of information for each pixel. Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: Band_1 Attribute_Definition: Red wavelength band Attribute_Definition_Source: Agisoft Metashape Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 253 Attribute: Attribute_Label: Band_2 Attribute_Definition: Green wavelength band Attribute_Definition_Source: Agisoft Metashape Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 251 Attribute: Attribute_Label: Band_3 Attribute_Definition: Blue wavelength band Attribute_Definition_Source: Agisoft Metashape Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 253 Overview_Description: Entity_and_Attribute_Overview: The orthomosaic is a full-color LZW-compressed cloud-optimized GeoTIFF with an 8-bit unsigned sample type. The filename is formatted as "2022014FA_Marconi_Orthomosaic_10cm_cog.tif", where 2022014FA is the USGS Field activity ID, Marconi (Beach) is the location, Orthomosaic is the product type, 10cm indicates the resolution of the grid, and cog is cloud-optimized GeoTIFF. Entity_and_Attribute_Detail_Citation: USGS Field Activity 2022-014-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 file 2022014FA_Marconi_Orthomosaic_10cm_cog.tif is a full-color orthomosaic with an 8-bit unsigned sample type. 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: 8-bit unsigned integer Format_Information_Content: Orthomosaic of Marconi Beach, Wellfleet, MA on March 11, 2022. Transfer_Size: 19.5 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/62deefcdd34e952be90941a0 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/62deefcdd34e952be90941a0 Network_Resource_Name: https://doi.org/10.5066/P9L1KCQB Access_Instructions: The first link in the list above is to directly download the data, the second is to the data page, and the third link is to the publication landing page. Fees: None. Technical_Prerequisites: 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/. Metadata_Reference_Information: Metadata_Date: 20221006 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