Metadata: Identification_Information: Citation: Citation_Information: Originator: Jin-Si R. Over Originator: Peter A. Traykovski Originator: Christopher R. Sherwood Originator: Noa R. Randall Originator: Alex J. Olson Publication_Date: 20220607 Title: Reference marks, walking GPS surveys, CoastCam GCPs, and instrument location data in Pea Island National Wildlife Refuge, North Carolina in November 2020, April, September, and October 2021 Edition: 1.0 Geospatial_Data_Presentation_Form: digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9DPZZG2 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/P9DPZZG2 Online_Linkage: https://www.sciencebase.gov/catalog/item/623dd650d34e915b67d698aa Larger_Work_Citation: Citation_Information: Originator: Jin-Si R. Over Originator: Christopher R. Sherwood Originator: Peter A. Traykovski Originator: Sandra M. Brosnahan Originator: Alex J. Olson Originator: Noa R. Randall Publication_Date: 2022 Title: DUNEX topographic, bathymetric, and supporting GPS data collected in Pea Island National Wildlife Refuge, North Carolina 2020-2021 Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data, tabular digital data, remote-sensing image Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9DPZZG2 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Over, J.R., Sherwood, C.R., Traykovski, P.A., Olson, A., Randall, N., Bales, R., and Brosnahan, S.M., 2022, DUNEX topographic, bathymetric, and supporting GPS data collected in Pea Island National Wildlife Refuge, North Carolina 2020-2021: U.S Geological Survey data release, https://doi.org/10.5066/P9DPZZG2. Online_Linkage: https://doi.org/10.5066/P9DPZZG2 Online_Linkage: https://www.sciencebase.gov/catalog/item/623dca6cd34e915b67d65110 Description: Abstract: The data in this part of the release contains GPS data as reference marks, walking surveys, and location data of deployed beach instrumentation on Pea Island National Wildlife Refuge (PINWR) at the USGS DUring Nearshore Event eXperiment (DUNEX) site and at Basnight Bridge (BB), NC. DUNEX is a multi-agency, academic, and non-governmental organization collaborative community experiment designed to study nearshore coastal processes during storm events. USGS participation in DUNEX will contribute new measurements and models that will increase our understanding of storm impacts to coastal environments, including hazards to humans and infrastructure and changes in landscape and natural habitats. Collected data are part of field activity 2021-029-FA and donated data 2020-024-DD. During November 2020, April, September, and October 2021, USGS and Woods Hole Oceanographic Institute (WHOI) scientists conducted multiple field surveys to collect a topobathy elevation time series. Two new reference marks were established in the Pea Island Boat Ramp parking lot to establish ground control for the duration of the project. GPS data were collected using real time kinematic (RTK) and post-processing kinematic (PPK) – satellite navigation system (GNSS) receivers. Purpose: Reference data and GPS data are for general geospatial use and to provide extrinsic calibration data for the stereo cameras, see DUNEX project link for more information. Walking surveys can be used as QC for the structure from motion products and to create terrain models. Supplemental_Information: For more information about the WHCMSC Field Activity and Donated Data, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2021-029-FA and https://cmgds.marine.usgs.gov/fan_info.php?fan=2020-024-DD. Information about the DUNEX project is available at https://usgs.gov/dunex2021. The bounding coordinates below represent the maximum extents of the collected GPS data. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20201122 Single_Date/Time: Calendar_Date: 20201125 Single_Date/Time: Calendar_Date: 20210420 Single_Date/Time: Calendar_Date: 20210906 Single_Date/Time: Calendar_Date: 20210907 Single_Date/Time: Calendar_Date: 20210912 Single_Date/Time: Calendar_Date: 20210914 Single_Date/Time: Calendar_Date: 20210915 Single_Date/Time: Calendar_Date: 20210917 Single_Date/Time: Calendar_Date: 20210918 Single_Date/Time: Calendar_Date: 20210919 Single_Date/Time: Calendar_Date: 20210925 Single_Date/Time: Calendar_Date: 20210926 Single_Date/Time: Calendar_Date: 20210929 Single_Date/Time: Calendar_Date: 20211003 Single_Date/Time: Calendar_Date: 20211006 Single_Date/Time: Calendar_Date: 20211011 Single_Date/Time: Calendar_Date: 20211012 Single_Date/Time: Calendar_Date: 20211019 Single_Date/Time: Calendar_Date: 20211021 Currentness_Reference: Ground condition; GPS data collected on twenty days. Status: Progress: Complete Maintenance_and_Update_Frequency: Not planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -75.52503954 East_Bounding_Coordinate: -75.47677200 North_Bounding_Coordinate: 35.76602575 South_Bounding_Coordinate: 35.67120749 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: GPS navigation Theme_Keyword: DUNEX Theme_Keyword: GPS navigation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: GPS measurement Theme_Keyword: geolocation measurement Theme_Keyword: datasets Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: oceans Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:623dd650d34e915b67d698aa Place: Place_Keyword_Thesaurus: Common geographic areas Place_Keyword: United States Place_Keyword: Pea Island Place_Keyword: North Carolina Place_Keyword: Dare 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, Northeast Region: Woods Hole Coastal and Marine Science Center Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey 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 Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/623dd650d34e915b67d698aa?name=PINWR_GPS_browse.jpg&allowOpen=true Browse_Graphic_File_Description: Base station SP80 on top of Reference Mark (RM)1 and RM2 (top left and right), a stationary target in view of the CoastCam (bottom left), and part of the cross-shore array instruments on poles (bottom right). Browse_Graphic_File_Type: JPEG Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Positions and elevations are produced by either a Spectra Precision (SP)80 Base Station and Rover, Rover and North Carolina CORS Network, JAVAD Triumph-2 Base and Rover, or a hand-held Garmin GPS. Repeat occupations of the same point were done for quality control. Logical_Consistency_Report: Page contains USGS field activity 2021-029-FA GPS data: stationary target locations, OPUS Solutions for two reference marks, walking survey positions, and location information for deployed poles and instruments. Page also contains donated walking survey data from USGS 2020-024-DD. Completeness_Report: Each reference mark was occupied three times for at least 2 hours. The final solutions are provided as OPUS reports. Stationary targets were surveyed multiple times. All of the poles installed by the USGS have GPS measurements of the top of the pole, equipment attached to poles throughout the field activity were not surveyed with the GPS equipment. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The SP80 RTK systems used to collect location data have a theoretical horizontal accuracy of 2 cm on any single point, but QC and repeat occupations of the same spot suggest slightly higher uncertainties up to 5-10 cm including user error. OPUS solutions of the reference marks have an RMS of 1.5 cm. JAVAD Triumph-2 PPK has a theoretical 1 cm horizontal accuracy and actual errors between 0.9-3.0 cm. Garmin GPS theoretical horizontal errors are 2 m. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The SP80 RTK systems used to collect location data have a theoretical vertical accuracy of 1 cm on any single point, but QC and repeat occupations of the same spot suggest slightly higher uncertainties up to 5-10 cm including user error. OPUS solutions of the reference marks have an RMS of 1.5 cm. JAVAD Triumph-2 PPK has a theoretical 1.5 cm vertical accuracy and actual errors between 1.5-8.2 cm. Garmin GPS theoretical vertical errors are 1 m. Lineage: Process_Step: Process_Description: Two PK nail reference marks, for use in QA/QC and keeping the base station in a consistent location for the length of the field activity, were established in the parking lot of the Pea Island National Wildlife Refuge boat launch. Each nail was occupied with the SP80 base station tripod for at least two hours three times. GPS location data from the SP80 was converted to RINEX using RINEX Converter v 5.0.8 (https://spectrageospatial.com/survey-office/) and parsed in teqc (https://www.unavco.org/software/data-processing/teqc/teqc.html, accessed February 2021) to be uploaded to OPUS (https://www.ngs.noaa.gov/OPUS/) at least 48 hours after collection date. OPUS solutions are provided as plain text documents in the zip folder 2021029FA_PINWR_ReferencemarkSolutions.zip that provide the location of the reference marks. Process_Date: 2021 Process_Step: Process_Description: Over the field activity, the SP80 equipment was used to take the location information of stationary targets and equipment installed at the field site. At the end of the field activity all GPS points were corrected to the OPUS solution averages of the reference marks by shifting the XYZ in Carlson SurvCE v. 6.08 (https://www.survce.com/home, accessed August, 2021). A Garmin hand-held GPS was used to get the general location of equipment installed in the water. Ground control points for the Helikite surveys (see larger citation Structure from Motion Data) were either black and white square plastic tarps with a number on them or AeroPoint yellow and black targets that were replaced every survey – a random letter was used for each survey to distinguish between surveys that used the same GCPs. The stationary targets were small black and white square nylon targets that were staked in place. On 2021-09-18, five plywood targets painted black and white were propped up in front of the CoastCam, a setup of two video cameras in stereo mounted on two poles on the dune (https://www.usgs.gov/media/images/coast-cam-installed-dune-overlooking-dunex-field-site), and the intersection of the targets black and white line with the sand was surveyed with the SP80. The static GPS data is provided in two CSVs for: (1) Stationary tarps and plywood targets used for calibration of the CoastCam and (2) locations of the cross-shore poles and equipment installed for the DUNEX field activity. Process_Date: 2021 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jin-Si R. Over Contact_Organization: U.S. Geological Survey, Northeast Region: 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 x2269 Contact_Electronic_Mail_Address: jover@usgs.gov Process_Step: Process_Description: Kinematic GPS data was also taken throughout the field activity. The SP80 or JAVAD equipment was used to take GPS points on a continuous setting as the equipment was walked in the field sites. At the end of the field activity all RTK GPS points were corrected to the OPUS solution averages of the reference marks by shifting the XYZ in Carlson SurvCE v. 6.08 (https://survece.com/home, accessed August, 2021). The PPK GPS data was processed in Inertial Explorer (v. 8.70.8722). GPS walking data was then packaged by the survey date and provided as CSV files in the zip folder PINWR_GPS_walkingSurveys.zip. Process_Date: 2021 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jin-Si R. Over Contact_Organization: U.S. Geological Survey, Northeast Region: 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 x2269 Contact_Electronic_Mail_Address: jover@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 18 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: 0.001 Ordinate_Resolution: 0.001 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: 298.257224 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 using Geoid 18 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: 2021029FA_PINWR_GPS_instrumentLocations.csv, 2021029FA_PINWR_CoastCam_GCPs.csv, and CSV files within PINWR_GPS_walkingSurveys.zip Entity_Type_Definition: Positions, elevations, and attributes of installed equipment, stationary and plywood targets, and point data from walking GPS surveys. Attributes are given as if all CSV files were in one file. Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: INFO Attribute_Definition: USGS Number of Field Activity or Donated Data Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: GPS Attribute_Definition: Equipment distinction, information was either collected with the SP80 (RTK), JAVAD Triumph-2 (PPK), or with the Garmin hand-held (Garmin) Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Date Attribute_Definition: Date measurements were taken, in YYYYMMDD Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Attributes Attribute_Definition: Identification of surveyed equipment (see process description), stationary GCP (F##), plywood target (P#), or walking survey (WS#) point. Duplicate numbers may exist if same item or similar type of point was surveyed on a different date. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Latitude Attribute_Definition: Estimated position in decimal degrees (NAD83[2011]). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 35.67120749 Range_Domain_Maximum: 35.76602575 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Longitude Attribute_Definition: Estimated position in decimal degrees (NAD83(2011)). Negative values represent W. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -75.52503954 Range_Domain_Maximum: -75.44767720 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Ellipsoid_height_NAD83 Attribute_Definition: Estimated vertical position based on the NAD83(2011) reference ellipsoid. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -43.545 Range_Domain_Maximum: -32.050 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Northing Attribute_Definition: Estimated Y position in NAD83(2011)/UTM Zone 18N. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3947587.088 Range_Domain_Maximum: 3958124.892 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Easting Attribute_Definition: Estimated X position in NAD83(2011)/UTM Zone 18N. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 452539.837 Range_Domain_Maximum: 456855.185 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Orthometric_height_NAVD88 Attribute_Definition: Estimated vertical position using NAVD88 (Geoid 18). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -4.700 Range_Domain_Maximum: 6.795 Attribute_Units_of_Measure: meters Overview_Description: Entity_and_Attribute_Overview: These attribute definitions describe each column of information in the CSV files. Range domains are based off of all the CSV files. The ‘no data’ value is NA. Entity_and_Attribute_Detail_Citation: USGS Field Activity 2021-029-FA and donated data 2020-024-DD. 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: Static and kinematic GPS data are provided in CSVs and the Reference Mark OPUS solutions are plain text files provided in a zip folder. 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: comma-delimited text (CSV) Format_Version_Number: Exported from Excel Office 365 16.01 Format_Information_Content: 2021029FA_PINWR_GPS_instrumentLocations.csv (2 KB) contains locations of instruments deployed during the field activity, 2021029FA_PINWR_CoastCam_GCPs.csv (2 KB) contains positions of the stationary/plywood targets, and the zip folder PINWR_GPS_walkingSurveys.zip (0.6 MB) contains eleven CSV files of walking survey positions and attributes. Transfer_Size: 0.604 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/623dd650d34e915b67d698aa Network_Resource_Name: https://www.sciencebase.gov/catalog/item/623dd650d34e915b67d698aa Network_Resource_Name: https://doi.org/10.5066/P9DPZZG2 Access_Instructions: The first link in the list above is to directly download all data on the page, the second to the data page where files can be individually downloaded, and the third link is to the publication landing page. Digital_Form: Digital_Transfer_Information: Format_Name: text Format_Information_Content: The zip folder 2021029FA_PINWR_ReferenceMarkSolutions.zip contains six OPUS Solutions to the reference marks established at the field site. Transfer_Size: 0.007 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/623dd650d34e915b67d698aa Network_Resource_Name: https://www.sciencebase.gov/catalog/item/623dd650d34e915b67d698aa Network_Resource_Name: https://doi.org/10.5066/P9DPZZG2 Access_Instructions: The first link in the list above is to directly download all data on the page, the second to the data page where files can be individually downloaded, and the third link is to the publication landing page. Fees: None. Technical_Prerequisites: The user must have software capable of unzipping a folder and reading CSV and text formats. Metadata_Reference_Information: Metadata_Date: 20220607 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jin-Si R. Over Contact_Organization: U.S. Geological Survey, Northeast Region: 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 x2269 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 the USGS Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998