Surveyed Positions of Transect Points Associated With Images Collected During Unmanned Aerial Systems Flights Over Town Neck Beach, in Sandwich, Massachusetts on January 9, January 25, February 14, March 16, May 4, and September 18, 2017

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Identification_Information:

Citation:

Citation_Information:

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

Surveyed Positions of Transect Points Associated With Images Collected During Unmanned Aerial Systems Flights Over Town Neck Beach, in Sandwich, Massachusetts on January 9, January 25, February 14, March 16, May 4, and September 18, 2017

Edition: 1.0
Geospatial_Data_Presentation_Form: digital text files
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F7QC02RM

Publication_Information:

Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.5066/F7QC02RM
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5a871acae4b00f54eb3a2d5f

Larger_Work_Citation:

Citation_Information:

Originator: C. Sherwood
Originator: P. Traykovski
Originator: E. Montgomery
Originator: J. Borden
Originator: S. Brosnahan
Originator: B. Irwin
Originator: E. Marsjanik
Originator: M. Martini
Originator: S. Suttles
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 on January 9, January 25, February 14, March 16, April 28, May 4, and September 18, 2017

Edition: 1.0
Geospatial_Data_Presentation_Form: digital files
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F7QC02RM

Publication_Information:

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

Other_Citation_Details:

Suggested citation: Sherwood, C.R., Traykovski, P.A., Montgomery, E.T., Borden, J., Brosnahan S.M., Irwin, B.J., Marsjanik, E.D., Martini, M.A., and Suttles, S.E., 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 on January 9, January 25, February 14, March 16, April 28, May 4, and September 18, 2017: U.S. Geological Survey data release, https://doi.org/10.5066/F7QC02RM.

Online_Linkage: https://doi.org/10.5066/F7QC02RM
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5a7daca0e4b00f54eb24a4f5

Description:

Abstract:

Low-altitude (80-100 meters above ground level) digital images of Town Neck Beach in Sandwich, Massachusetts were obtained from a camera mounted on a small unmanned aerial system (UAS; also known as a drone). Imagery was collected at close to low tide on seven 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 and Marine Geology Program and were conducted under USGS field activity numbers 2017-005-FA, 2017-008-FA, 2017-010-FA, 2017-014-FA, 2017-029-FA, and 2017-050-FA.

Purpose:

This dataset consists of locations of transect points surveyed on January 9, January 25, February 14, March 16, May 4, and September 18, 2017 that can be used to evaluate photogrammetric products from imagery collected on the same days. No transect data was collected on April 28 althouth aerial images and ground control points were obtained.

Supplemental_Information:

For more information about the field activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-005-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-008-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-010-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-014-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-029-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-050-FA. Drone mapping was conducted at Town Neck Beach in Sandwich, Massachusetts beginning in 2015. The digital images, Ground Control Points, and transect data from a calendar year are released together. This product contains the data collected in 2017.

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20170109

Single_Date/Time:

Calendar_Date: 20170125

Single_Date/Time:

Calendar_Date: 20170214

Single_Date/Time:

Calendar_Date: 20170316

Single_Date/Time:

Calendar_Date: 20170504

Single_Date/Time:

Calendar_Date: 20170918

Currentness_Reference: ground condition temporary markers

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.4876
East_Bounding_Coordinate: -70.4754
North_Bounding_Coordinate: 41.7702
South_Bounding_Coordinate: 41.7636

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5a871acae4b00f54eb3a2d5f

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 and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: GNSS
Theme_Keyword: navigation
Theme_Keyword: Global Positioning System
Theme_Keyword: GPS
Theme_Keyword: field activity number 2017-005-FA
Theme_Keyword: field activity number 2017-008-FA
Theme_Keyword: field activity number 2017-010-FA
Theme_Keyword: field activity number 2017-014-FA
Theme_Keyword: field activity number 2017-029-FA
Theme_Keyword: field activity number 2017-050-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: Sandra Brosnahan
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 x2265
Contact_Electronic_Mail_Address: sbrosnahan@usgs.gov

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Spectra Precision SP80 GNSS receivers were used to locate the targets used as ground control points and 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 (bench mark, On-line Positioning User Service). The overall accuracy of the transect point locations, based on the accuracy of the reference point and repeat measurements of targets and other known locations was 3.5 cm (horizontal) and 4.3 cm (vertical).

Logical_Consistency_Report:

There is one text file per day that transect points were collected; each lists the positions of transect points with horizontal coordinates in NAD83(2011) UTM Zone 19 North (meters), and vertical coordinates in NAVD88 GEOID 12b (meters).

Completeness_Report:

The data is complete for each field activity. Positions of the transect points collected are listed in the text files. No transect data was collected on April 28.

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 among the five measurements and the range (minimum to maximum values) 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), Easting (m) 376707.744 (0.0175), Orthometric elevation (m) 2.692(0.0398).)). Transect points 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 transect points locations 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:

raw transect point data collected during field activities 2017-005-FA, 2017-008-FA, 2017-010-FA, 2017-014-FA, 2017-029-FA, 2017-050-FA

Geospatial_Data_Presentation_Form: digital text files
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-005-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-008-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-010-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-014-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-029-FA
Online_Linkage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-050-FA

Type_of_Source_Media: .csv file
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20170109
Ending_Date: 20170918

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation:

Transect point locations data from USGS field activities 2017-005-FA, 2017-008-FA, 2017-010-FA, 2017-014-FA, 2017-029-FA, 2017-050-FA

Source_Contribution:

The transect points may be used to evaluate the photogrametric products produced from aerial images taken on the same day at Town Neck Beach, Sandwich, MA.

Process_Step:

Process_Description:

All transect point 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. See Horizontal_and vertical Positional_Accuracy_Report for a complete description of the survey methods. Transect point locations were recorded as targets were deployed or retrieved, or during flight operations. Transect points were simply measurements of bare ground elevation, usually on sand, with associated horizontal coordinates. The transect locations were collected at the same time and with the same equipment as the targets. Data from the survey instruments was produced in horizontal coordinate reference system (CRS) NAD83(2011) UTM Zone 19 N (meter), and the vertical CRS NAVD88. These were reformatted (e.g., column locations were changed) when were loaded into Photoscan during photogrammetry processing. They were subsequently exported from Photoscan as comma-separated text (.txt) files with a two-line header. We hand-edited those files to replace the two-line header supplied by Photoscan with the following header: "#X/Easting (m NAD83(2011) Zone 19N),Y/Northing (m NAD83(2011) Zone 19N),Z/Elevation (m NAVD88)". Process date is the same as collection date, which for the 6 events is January 9, January 25, February 14, March 16, May 4 and September 18. The process date indicated is the last of those events.

Process_Date: 20170918
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 x2265
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sbrosnahan@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: 2017SandwichTNB_transects.zip
Entity_Type_Definition:

The files contain transect point positions surveyed at Town Neck Beach, Sandwich, MA to provide independent reference points for assessment of the photogrammetric products.

Entity_Type_Definition_Source: U.S. Geological Survey

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 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:

Six text files are in the .zip; each contains the locations and elevations of the transect points for each field activity. Each file contains a header line followed by lines with 3 columns of comma-separated values. The header line describes the column contents, as follows: #X/Easting (m NAD83(2011) Zone 19N), Y/Northing (m NAD83(2011) Zone 19N), Z/Elevation (m, NAVD88). Subsequent lines contain coordinates for each transect point recorded on that day. Each file has a different number of data records: 2017-01-09_SandwichTNB_trans.txt has 837, 2017-01-25_SandwichTNB_trans.txt has 152, 2017-02-14_SandwichTNB_trans.txt has 160, 2017-03-16_SandwichTNB_trans.txt has 224, 2017-05-04_SandwichTNB_trans.txt has 37, 2017-09-18_SandwichTNB_trans.txt has 258.

Entity_and_Attribute_Detail_Citation:

USGS Field Activities 2017-005-FA, 2017-008-FA,2017-010-FA, 2017-014-FA, 2017-029-FA, 2017-050-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:

The zip file contains 6 text files of transect points from the 2017 surveys (2017-01-09_SandwichTNB_trans.txt, 2017-01-25_SandwichTNB_trans.txt, 2017-02-14_SandwichTNB_trans.txt, 2017-03-16_SandwichTNB_trans.txt, 2017-05-04_SandwichTNB_trans.txt, 2017-09-18_SandwichTNB_trans.txt).

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_Information_Content:

The zipped file contains text files of surveyed transect 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: 0.021

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/5a871acae4b00f54eb3a2d5f

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/5a871acae4b00f54eb3a2d5f

Network_Resource_Name: https://doi.org/10.5066/F7QC02RM

Access_Instructions:

The first link is to the page containing the data. The second is a direct link to download all data available from the page as a zip file. The final 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_F7QC02RM/2017SandwichTNB_transects_meta.html>