Surveyed Positions of Ground Control Points Associated With Images Collected During Unmanned Aerial Systems Flights Over Town Neck Beach, in Sandwich, Massachusetts on January 22, January 25, February 11, March 30, and September 21, 2016

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Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 2019
Title:

Surveyed Positions of Ground Control Points Associated With Images Collected During Unmanned Aerial Systems Flights Over Town Neck Beach, in Sandwich, Massachusetts on January 22, January 25, February 11, March 30, and September 21, 2016

Edition: 1.0
Geospatial_Data_Presentation_Form: digital text files
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9CJOMBM

Publication_Information:

Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher:

U.S. Geological Survey, Coastal/Marine Hazards and Resources Program

Online_Linkage: https://doi.org/10.5066/P9CJOMBM
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5d03e5c5e4b0e3d31158065d

Larger_Work_Citation:

Citation_Information:

Originator: E. Montgomery
Originator: C. Sherwood
Originator: P. Traykovski
Originator: B. Irwin
Originator: J. Borden
Originator: M. Martini
Originator: S. Miner
Publication_Date: 2019
Title:

Geotagged Low-Altitude Aerial Imagery From Unmanned Aerial Systems Flights Over Town Neck Beach, in Sandwich, Massachusetts, With Associated Ground Control Points, and Transects Collected by the U.S. Geological Survey on January 22, January 25, February 11, March 30, and September 21, 2016.

Edition: 1.0
Geospatial_Data_Presentation_Form: digital files
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9CJOMBM

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Other_Citation_Details:

Montgomery E.T., Sherwood, C.R., Traykovski, P.A., Irwin, B.J., Borden, J., Martini, M.A., and Miner, S., 2019, Geotagged low-altitude aerial imagery from unmanned aerial systems flights over Town Neck Beach, in Sandwich, Massachusetts, with associated ground control points, and transects collected by the U.S. Geological Survey on January 22, January 25, February 11, March 30, and September 21, 2016: U.S. Geological Survey data release, https://doi.org/10.5066/P9CJOMBMX

Online_Linkage: https://doi.org/10.5066/P9CJOMBMX
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5cf12e89e4b056af3664e718

Description:

Abstract:

Low-altitude (30-120 meters above ground level) digital images of Town Neck Beach in Sandwich, Massachusetts, were obtained with a series of cameras mounted on small unmanned aerial systems (UAS, also known as a drone). Imagery was collected at close to low tide on five days to observe changes in beach and dune morphology. The images were geolocated by using the single-frequency geographic positioning system aboard the UAS. Ground control points (GCPs) were established by using temporary targets on the ground, which were located by using a real-time kinematic global navigation satellite system (RTK-GNSS) base station and rovers. The GCPs can be used as constraints during photogrammetric processing. Transect points were collected by using the same RTK-GNSS system; these can be used to evaluate photogrammetric products. This data release includes georeferenced images, image-location files, GCPs, and transect points. Collection of these data was supported by the U.S. Geological Survey Coastal/Marine Hazards and Resources Program and conducted under U.S. Geological Survey field activity numbers 2016-013-FA, 2016-043-FA, 2016-053-FA, 2016-054-FA and 2016-055-FA.

Purpose:

This dataset consists of locations of targets deployed and surveyed on January 22, January 25, February 11, March 30, and September 21, 2016 that can be used as ground control points (GCPs) to constrain photogrammetric processing of imagery collected on the same days.

Supplemental_Information:

For more information about the field activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-053-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-0054-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-055-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-013-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-043-FA.
Drone mapping was conducted at Town Neck Beach in Sandwich, Massachusetts between 2015 and October 2017. The digital images, Ground Control Points and transect data from a calendar year are released together. This product contains the data collected in 2016.

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20160122

Single_Date/Time:

Calendar_Date: 20160125

Single_Date/Time:

Calendar_Date: 20160211

Single_Date/Time:

Calendar_Date: 20160330

Single_Date/Time:

Calendar_Date: 20160921

Currentness_Reference: ground condition temporary markers

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.4869
East_Bounding_Coordinate: -70.4756
North_Bounding_Coordinate: 41.77
South_Bounding_Coordinate: 41.7635

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5d03e5c5e4b0e3d31158065d

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: location
Theme_Keyword: elevation

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal/Marine Hazards and Resources Program
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: GNSS
Theme_Keyword: targets
Theme_Keyword: ground control points
Theme_Keyword: navigation
Theme_Keyword: Global Positioning System
Theme_Keyword: GPS
Theme_Keyword: field activity number 2016-053-FA
Theme_Keyword: field activity number 2016-054-FA
Theme_Keyword: field activity number 2016-055-FA
Theme_Keyword: field activity number 2016-013-FA
Theme_Keyword: field activity number 2016-043-FA

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: aerial and satellite photography

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: navigational data
Theme_Keyword: GPS measurement

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: USA
Place_Keyword: Sandwich
Place_Keyword: Massachusetts
Place_Keyword: Town Neck 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: Christopher Sherwood
Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2269
Contact_Electronic_Mail_Address: csherwood@usgs.gov

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Spectra Precision SP80 global navigation satellite system (GNSS) receivers were used to locate the targets used as ground control points and to collect transect coordinates. One was configured as a base station and established at a fixed, known location, and broadcast differential corrections to rovers in real time. On various days, one or two SP80 receivers and/or a Spectra Precision model ProMark 800 GNSS receiver functioned as rovers that received corrections from the base and were used to locate targets that served as ground control points and measure transect points. The base location was determined via localization with a rover positioned on a local reference point designated BMOPUS. The overall horizontal accuracy of the target locations, based on the accuracy of the reference point and repeat measurements of targets and other known locations was 1.5 cm and the vertical accuracy was 0.5 cm. Conversions from satellite coordinates to NAD83(2011) UTM zone 19N (EPSG::6348) and NAVD88 were made by Carlson SurvCE software in the data collector.

Logical_Consistency_Report:

There is one text file per survey day; each lists the positions of each temporary target with horizontal coordinates in NAD83(2011) UTM Zone 19 North (meters), and vertical coordinates in NAVD88 GEOID 12b (meters). Four types of targets were used, and are distinguished by labels in the first column of the data file: Txx (or txx) indicates the PVC targets, Pxx (or pxx) indicates the plywood targets, fxx indicates fibreglass targests, and BAGxx indicates garbage bags, where xx is the target number.

Completeness_Report:

The data is complete for each field activity. Positions of all of the temporary targets that serve as ground control points deployed each day are listed in the text files.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal positions were determined with GNSS rovers receiving real-time differential corrections from a GNSS base station established over a benchmark on the corner of a concrete pad under the trash bins at the east end of the Town Neck Beach parking lot, Sandwich, MA. The base station was a Spectra model SP80 GNSS receiver with UHF radio and external antenna mounted on a separate tripod. The antenna height was 2.25 m. The coordinates of the reference point (designated BMOPUS) were determined from precise orbit On-line Positioning User Service (OPUS) solutions using GPS data collected during five 2- to 7-hour occupations between November 2015 and December 2016. The final values are the averages of the five positions, and the uncertainty is the quadrature sum of the range (minimum to maximum values) among the five measurements and the range for individual measurements, as reported by OPUS. The coordinates (uncertainty) in NAD83(2011) (Epoch:2010.0000) UTM Zone 19, elevation NAVD88 (geoid 12B) for the reference point BMOPUS are: Northing (m) 4624914.408 (0.0067) meters, Easting 376707.744 (0.0175) meters, Orthometric elevation 2.692(0.0398) meters. The coordinates of the targets were measured with rovers with an estimated precision of +/- 3 cm (horizontal) and +/-1.6 cm (vertical). Combined with the uncertainty of the reference point, the overall estimated accuracy of target locations used for GCPs is +/- 3.5 cm (horizontal) and +/-4.3 cm (vertical).

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Vertical positions were determined with GNSS rovers receiving real-time differential corrections from a GNSS base station established over a temporary benchmark on a concrete pad under the trash bins at the east end of the Town Neck beach parking lot, Sandwich MA. (See Horizontal_Positional_Accuracy_Report for a complete description of the survey methods).

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title:

GPS ground control point data collected by the U.S. Geological Survey during field activities 2016-053-FA, 2016-054-FA, 2016-055-FA, 2016-013-FA, and 2016-043-FA.

Geospatial_Data_Presentation_Form: digital text files
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-053-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-054-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-055-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-013-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-043-FA

Type_of_Source_Media: .csv file
Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20160122

Single_Date/Time:

Calendar_Date: 20160125

Single_Date/Time:

Calendar_Date: 20160211

Single_Date/Time:

Calendar_Date: 20160330

Single_Date/Time:

Calendar_Date: 20160921

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation:

GPS ground control point locations from USGS field activities 2016-053-FA, 2016-054-FA, 2016-055-FA, 2016-013-FA, and 2016-043-FA

Source_Contribution:

The ground control points (GCPs) may be used to constrain the photogrametric products produced from aerial images taken on the same day at Town Neck Beach, Sandwich, MA.

Process_Step:

Process_Description:

All targets and transect locations were measured with an RTK-GNSS system by the USGS field crew at Town Neck Beach, Sandwich, MA during daylight around the time of low tide. Four kinds of targets were used: commercial targets (4 ft x 4 ft x 4-mil thick PVC plastic sheets with black and white diamond patterns and grommets in corners (Berntsen International, Inc. product number AT48IC-STK), plywood targets (2 ft x 2 ft x 1/2-inch thick plywood boards painted with black and white squares), fibreglass targets (1-ft square boards with circular laminated Agisoft Photoscan targets), and black plastic garbage bags. The PVC targets were designated "Txx" or "txx", the plywood targets were designated "Pxx" or "pxx", the fibreglass targets were designated "fxx", and the garbage bags were designated "BAGxx", where xx is the target number. The survey point on the PVC and plywood targets is the central intersection of the black and white panels. The survey point on the fibreglass targets is the small (1-cm diameter) white dot in the center of the black circle, and the survey point on the garbage bags is the dimple in the central mound of sand placed on the target. The dimple is the impression made by the foot of the survey staff. See Horizontal_and vertical Positional_Accuracy_Report for a complete description of the survey methods. Process date is the same as collection date, which for the five events is January 22, January 25, February 11, March 30 and September 21, 2016. The process date indicated is the last of those events.

Process_Date: 20160921
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Sandy Brosnahan
Contact_Organization: U.S. Geological Survey

Contact_Position: physical scientist
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 x2269
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: csherwood@usgs.gov

Process_Step:

Process_Description:

The distribution link to download the data file directly was improperly formatted and edited so the download would work.

Process_Date: 20200612
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20200807
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@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

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Universal Transverse Mercator
Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -69.00000
Latitude_of_Projection_Origin: 0.000
False_Easting: 500000.0000
False_Northing: 0.0000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 0.0001
Ordinate_Resolution: 0.0001

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
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 (NAVD88)
Altitude_Resolution: 0.0001
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: 2016SandwichTNB_GCPs.zip
Entity_Type_Definition:

The files contain target positions surveyed at Town Neck Beach, Sandwich, MA to provide ground control points to constrain the photogrammetric products.

Entity_Type_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: Label
Attribute_Definition: Target/GCP identifier
Attribute_Definition_Source: rover operator
Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: X/Easting (m NAD83(2011) Zone 19N)
Attribute_Definition: Easting in meters referenced to NAD83(2011) UTM Zone 19 North.
Attribute_Definition_Source: SP80 GNSS receiver
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 376000
Range_Domain_Maximum: 380000
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 1.0E-4

Attribute:

Attribute_Label: Y/Northing (m NAD83(2011) Zone 19N)
Attribute_Definition: Northing in meters referenced to NAD83(2011) UTM Zone 19 North.
Attribute_Definition_Source: SP80 GNSS receiver
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4620000
Range_Domain_Maximum: 4630000
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 1.0E-4

Attribute:

Attribute_Label: Z/Elevation (m, NAVD88)
Attribute_Definition:

Elevation referenced to North American Vertical Datum of 1988 (NAVD88).

Attribute_Definition_Source: SP80 GNSS receiver
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -1
Range_Domain_Maximum: 7
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 1.0E-3

Overview_Description:

Entity_and_Attribute_Overview:

Five text files are in the .zip; each contains the locations and elevations of the GCPs for each field activity. Each file contains one header line, followed by lines with 4 columns of comma-separated values. The header line describes the column contents as follows: #Label, X/Easting (m NAD83(2011) Zone 19N), Y/Northing (m NAD83(2011) Zone 19N), Z/Elevation (m, NAVD88). Subsequent lines contain the labels and coordinates for each GCP deployed on that day. The labels identify which type of target was used, where Txx (or txx) indicates the 4-ft square PVC plastic targets, Pxx (or pxx) indicates the 2-ft square plywood targets, fxx indicates small (approximately 1-ft square) fibreglass boards with circular targets, and BAGxx indicates black plastic trash bags used only on January 25, where xx is the target number. Each file has a different number of data records after the header: 2016-01-22_SandwichTNB_GCPs.txt has 32, 2016-01-25_SandwichTNB_GCPs.txt has 19, 2016-02-11_SandwichTNB_GCPs.txt has 20, 2016-03-30_SandwichTNB_GCPs.txt has 34, 2016-09-21_SandwichTNB_GCPs.txt has 27.

Entity_and_Attribute_Detail_Citation:

USGS Field Activities 2016-053-FA, 2016-054-FA, 2016-055-FA, 2016-013-FA, and 2016-043-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:

This data release includes position and elevation data from surveys of the Ground control points (GCPs) collected on each day of operations. Surveyed GCPs are provided in 5 text files distributed in a zip file named 2016SandwichTNB_GCPs.zip.

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. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), and have been processed successfully on a computer system at the 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. 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_Information_Content:

Zipped files contain text files of surveyed ground control points collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center along Sandwich Town Neck Beach, MA. Each file contains comma separated text fields as described in the entity attribute overview.

File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 0.006

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/5d03e5c5e4b0e3d31158065d/

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/5d03e5c5e4b0e3d31158065d?name=2016SandwichTNB_GCPs.zip

Network_Resource_Name: https://doi.org/10.5066/P9CJOMBM

Access_Instructions:

The first link is to the page containing the data, the next link is to the zip file containing GCP data files, and the last link is to the publication landing page.

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20220707
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Ellyn Montgomery
Contact_Organization: U.S. Geological Survey

Contact_Position: Oceanographer
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 x2356
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
Contact_Instructions:

The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P9CJOMBM/2016SandwichTNB_GCPs_meta.html>