Ground control points used in UAS operations and positions of installed permanent ground control points on North Core Banks, NC in October 2022

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Christopher R. Sherwood
Originator: Alexandra D. Evans
Publication_Date: 20230328
Title:
Ground control points used in UAS operations and positions of installed permanent ground control points on North Core Banks, NC in October 2022
Edition: 1.0
Geospatial_Data_Presentation_Form: digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P99IV3FC
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/P99IV3FC
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Christopher R. Sherwood
Originator: Jennifer M. Cramer
Originator: Alexandra D. Evans
Originator: Sara L. Zeigler
Publication_Date: 2023
Title:
Topographic, bathymetric, multispectral, vegetation, sediment, and supporting GPS data collected on North Core Banks, Cape Lookout National Seashore, North Carolina in October 2022, U.S. Geological Survey Field Activity 2022-034-FA
Edition: 1.0
Geospatial_Data_Presentation_Form: digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P99IV3FC
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Over, J.R., Sherwood, C.R., Cramer, J.M., Evans, A.D., and Zeigler, S.L, 2023, Topographic, bathymetric, multispectral, vegetation, sediment, and supporting GPS data collected on North Core Banks, Cape Lookout National Seashore, NC in October 2022, U.S. Geological Survey Field Activity 2022-034-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P99IV3FC.
Online_Linkage: https://doi.org/10.5066/P99IV3FC
Online_Linkage:
Description:
Abstract:
These data map in high detail surficial cross-sections of North Core Banks, a barrier island in Cape Lookout National Seashore, NC, in October 2022. U.S. Geological Survey field efforts are part of an interagency agreement with the National Park Service to monitor the recovery of the island from Hurricanes Florence (2018) and Dorian (2019). Three sites of outwash and overwash were targeted for extensive vegetation ground-truthing, sediment samples, bathymetric mapping with a remote-controlled surface vehicle, and uncrewed aerial systems (UAS) flights to collect multispectral imagery. Five permanent ground control points were also installed and surveyed to act as control for additional aerial imagery collects via plane. UAS imagery were processed in Agisoft Metashape (v. 1.8.1) to produce calibrated multispectral (red, blue, green, red-edge, near-infrared, and panchromatic) orthoimages and digital surface models.
Purpose:
Vinyl ground control points (GCPs) were used for georeferencing the UAS imagery and the permanent GCPs are for georeferencing future aerial surveys.
Supplemental_Information:
For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-034-FA. Bounding coordinates represent the maximum extent of all the GCPs, not the individual sites.
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20221017
Single_Date/Time:
Calendar_Date: 20221018
Single_Date/Time:
Calendar_Date: 20221019
Single_Date/Time:
Calendar_Date: 20221020
Currentness_Reference:
Ground condition; multiple survey days. Online Positioning User Service (OPUS) reports from the National Spatial Reference System were produced at least 24 hours after data collection on the permanent GCPs for rapid orbit solutions.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Not planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -76.27081576
East_Bounding_Coordinate: -76.19335619
North_Bounding_Coordinate: 34.95058758
South_Bounding_Coordinate: 34.88897676
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: Remote Sensing Coastal Change
Theme_Keyword: Hurricane Florence
Theme_Keyword: Hurricane Dorian
Theme_Keyword: Ground control point
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: Global Positioning System (GPS) observations
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Bathymetry and Elevation
Theme_Keyword: Physical Habitats and Geomorphology
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:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:63ae090fd34e92aad3ca5bac
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Atlantic Ocean
Place_Keyword: State of North Carolina
Place_Keyword: Cape Lookout
Place_Keyword: North Core Banks
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. These data are not intended for navigational use.
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: Browse_Graphic_File_Description:
Graphic of the two types of ground control points (GCPs) used and installed on North Core Banks, NC; left is a vinyl target and USGS personnel and on the right is a permanent GCP being surveyed with a base station by USGS personnel.
Browse_Graphic_File_Type: JPEG
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Positions and elevations were produced with Real-Time Kinematic (RTK) Spectra Precision (SP)80 Rovers connected to the NC CORs system. Elevations were QA/QCā€™d with permanent GCP CALO1 and National Geodetic Survey Marker EA0078, the latter of which upon further inspection of values may no longer be stable or at the published position. Permanent GCPs were occupied for a minimum of 40 minutes and Online Positioning User Services (OPUS) rapid-static solutions were generated (https://geodesy.noaa.gov/OPUS/).
Logical_Consistency_Report:
The file contains USGS field activity 2022-034-FA navigation data: GCPs for UAS surveys and OPUS reports for the five permanent GCPs. The points for the permanent GCPs in 2022034FA_NCB_GCPs.csv are not the same as the final OPUS reports, but act as a quality check of the RTK accuracies. Vinyl targets were re-used at sites and are distinguished by the suffix denoting which pond they were placed at.
Completeness_Report:
Points are a subset of all of the GPS points taken during the field activity. See the larger work citation for the entire dataset, including points taken at the beginning and end of each day on a reference mark or permanent GCP 1 for quality control.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The Horizontal Standard Deviation (HSDV) of each GPS RTK point is provided, which estimates the uncertainty at each point, in meters. Real time kinematic positions of the equipment have a 0.1-2 cm (0.7 cm Root Mean Square Error (RMSE)) horizontal accuracy based on a comparison of measurements taken of permanent GCPs and their OPUS solutions. All points had a fixed position, which have HSDV values less than 1.5 cm.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The Vertical Standard Deviation (VSDV) of each GPS RTK point is provided, which estimates the uncertainty at each point, in meters. Real time kinematic positions of the equipment have a 1-5 cm (2.9 cm RMSE) vertical accuracy based on a comparison of measurements taken of permanent GCPs and their OPUS solutions. All points had a fixed position, which have VSDV values less than 2.5 cm.
Lineage:
Process_Step:
Process_Description:
The vinyl ground control points (GCPs) were processed with the following steps:
1. Five vinyl GCPs with black and white squares were deployed within each survey area and surveyed at the center with the SP80 using the NC CORs RTK network.
2. The data were exported from the SP80 rover with xyz variances in the horizontal datum NAD83(2011) to produce latitude, longitude, and ellipsoid heights, and then UTM18N and NAVD88 using GEOID 18 were used to produce UTM coordinates and orthometric heights. From each site GCP locations were put into the CSV file named 2022034FA_NCB_GCPs.csv.
Process_Date: 20221020
Process_Step:
Process_Description:
Each of the five permanent GCPs (CALO1-5) were placed with the following steps:
1. Three five-foot steel rebar ½ā€ posts were driven into the ground. Three ½ā€ silicon-bronze grounding wire clamps and stainless-steel washers were placed near the top at a level surface.
2. The 2x2 foot rigid aluminum coated foam laminate ¼ā€ thick target (four-square black and white) with three holes drilled into it was placed onto the posts and on top of the clamps and washer, and then an additional clamp and washer was placed on top of the target to fasten the target in place on the posts. A level was used to make sure the target lay flat and slightly above the sand and vegetation.
3. An RTK point at the target center was taken and provided in the 2022034FA_NCB_GCPs.csv. The target centers of CALO2-5 were occupied with the SP80 station as a base for roughly one hour. Target CALO1 was occupied for four hours. The SP80 G-File for each target was converted into a RINEX file using a converter (v.5.0.8 available here https://spectrageospatial.com/survey-office/). The RINEX .0 file was manually cleaned and decimated to 10 seconds using teqc (latest and end-of-life version here https://www.unavco.org/software/data-processing/teqc/teqc.html). The decimated file was uploaded to the rapid-static OPUS option using the SPP91564_2 NONE antenna option with an antenna height of 1.54 meters. The resulting OPUS solution is provided in its entirety as a plain text file.
Process_Date: 20221024
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: 20
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: -75.000000
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: 298.257222101
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: 2022034FA_NCB_PermGCP_OPUS_Solutions.zip
Entity_Type_Definition:
Folder of permanent ground control points (CALO 1-5) OPUS solutions as separate text files that include position and elevation information.
Entity_Type_Definition_Source: USGS
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2022034FA_NCB_GCPs.csv
Entity_Type_Definition: Ground control point positions, elevations, and attributes
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: INFO
Attribute_Definition: USGS Field Activity Number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2022034FA
Enumerated_Domain_Value_Definition: USGS year, ID, and Field Activity
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: GPS
Attribute_Definition:
Type of GPS processing; RTK is data from the SP80 rover using the NC CORS Real-Time Kinematic (RTK) network.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: Date
Attribute_Definition:
Feature date in format MM/DD/YYYY where YYYY is the year, MM is the month, and DD is the day.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: Attributes
Attribute_Definition:
Unique identifier for ground control points. Prefix V# refers to the vinyl target and the digit of its identifying code, N refers to no number. The suffix NP# refers to the site New Pond (NP) 0, 1, and 3. CALO-# refers to the permanent targets and the identifying number.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: Northing_UTM18N
Attribute_Definition: Feature location Y-Coordinate (NAD83(2011)/UTM Zone 18N)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3861466.467
Range_Domain_Maximum: 3868214.256
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Easting_UTM18N
Attribute_Definition: Feature location X-Coordinate (NAD83(2011)/UTM Zone 18N)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 383878.414
Range_Domain_Maximum: 391035.208
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Orthometric_height_NAVD88
Attribute_Definition: Feature orthometric Z-Coordinate (NAVD88) using GEOID 18
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.067
Range_Domain_Maximum: 5.246
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Latitude_NAD83[2011]
Attribute_Definition: Feature location latitude (NAD83[2011])
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 34.88897678
Range_Domain_Maximum: 34.95058758
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Longitude_NAD83[2011]
Attribute_Definition: Feature location longitude (NAD83[2011])
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -76.27081576
Range_Domain_Maximum: -76.19335619
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Ellipsoid_height_NAD83[2011]
Attribute_Definition: Feature height above the (NAD83[2011] GRS80) ellipsoid.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -37.767
Range_Domain_Maximum: -32.699
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: HSDV
Attribute_Definition: Horizontal Standard Deviation value produced by the SP80 GPS
Attribute_Definition_Source: SP80
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.008
Range_Domain_Maximum: 0.013
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: VSDV
Attribute_Definition: Vertical Standard Deviation value produced by the SP80 GPS
Attribute_Definition_Source: SP80
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.013
Range_Domain_Maximum: 0.020
Attribute_Units_of_Measure: meters
Overview_Description:
Entity_and_Attribute_Overview:
These attribute definitions describe each column of information in the CSV file. GCPs can be used in photogrammetry processing using the coordinate reference systems provided.
Entity_and_Attribute_Detail_Citation: USGS Field Activity 2022-034-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:
2022034FA_NCB_GCPs.csv contains the ground control point data to be used with the aerial imagery provided in the larger work citation and the 2022034FA_NCB_PermGCP_OPUS_Solutions.zip file contains the OPUS Solutions for the five installed permanent GCPs.
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: CSV
Format_Version_Number: Exported from Excel Office 365 16.01
Format_Information_Content:
The CSV file 2022034FA_NCB_GCPs.csv contains ground control data.
Transfer_Size: 0.03
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in the list above is to directly download the data, the second to the data page, and the third link is to the publication landing page.
Digital_Form:
Digital_Transfer_Information:
Format_Name: TXT
Format_Version_Number: Exported from Excel Office 365 16.01
Format_Information_Content:
The zip file 2022034FA_NCB_PermGCP_OPUS_Solutions.zip contains OPUS Solutions for the five installed permanent GCPs.
Transfer_Size: 0.08
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in the list above is to directly download the data, the second to the data page, and the third link is to the publication landing page.
Fees: None.
Technical_Prerequisites: none
Metadata_Reference_Information:
Metadata_Date: 20230328
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

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