Ground control and transect points collected during unmanned aerial systems (UAS) flights: Plum Island Estuary and Parker River NWR (PIEPR), February 27th, 2018

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

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

Ground control and transect points collected during unmanned aerial systems (UAS) flights: Plum Island Estuary and Parker River NWR (PIEPR), February 27th, 2018

Edition: 1.0
Geospatial_Data_Presentation_Form: digital text files
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9O9NSRK

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/P9O9NSRK
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5c98d30ce4b0b8a7f6288b7c

Larger_Work_Citation:

Citation_Information:

Originator: Neil K. Ganju
Originator: Sandra M. Brosnahan
Originator: Emily J. Sturdivant
Originator: Elizabeth A. Pendleton
Originator: Seth D. Ackerman
Publication_Date: 2018
Title:

Aerial imagery from unmanned aerial systems (UAS) flights and ground control points: Plum Island Estuary and Parker River NWR (PIEPR), February 27th, 2018

Edition: 1.0
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9O9NSRK

Publication_Information:

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

Other_Citation_Details:

Ganju, N.K., Brosnahan, S.M., Sturdivant, E.J., Pendleton, E.A., and Ackerman, S.D., 2019, Aerial imagery from unmanned aerial systems (UAS) flights—Plum Island Estuary and Parker River NWR (PIEPR), February 27th, 2018: U.S. Geological Survey data release, https://doi.org/10.5066/P9O9NSRK.

Online_Linkage: https://doi.org/10.5066/P9O9NSRK
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5c0fe16de4b0c53ecb2d1bc3

Description:

Abstract:

Low-altitude (80 and 100 meters above ground level) digital images were taken over an area of the Plum Island Estuary and Parker River National Wildlife Refuge (NWR) in Massachusetts using 3DR Solo unmanned aircraft systems (UAS) on February 27, 2018. These images were collected as part of an effort to document marsh stability over time and quantify sediment movement using UAS technology. Each UAS was equipped with either a Ricoh GRII digital camera for natural color photos, used to produce digital elevation models and ortho images, or a MicaSense RedEdge multi-spectral camera that captures five specific bands of the visible spectrum (blue, green, red, red edge, and near-infrared), which can be used to classify vegetation. The MicaSense camera covered a smaller subsection of the same polygonal area of the marsh that the Ricoh imaged. Some photographs contain black and white targets used as ground control points (GCPs), which were surveyed by a field crew with a high-precision Real Time Kinematic Global Position System. This data release includes the original images from both cameras, as well as a csv file containing the latitude and longitude coordinates, in Universal Transverse Mercator Zone 19 referenced to the North American Datum of 1983, of the ground control points needed to complete any photogrammetry projects using the original photographs, and GPS transect points used to evaluate the photogrammetry products created.

Purpose:

The objective of obtaining these ground control points was to constrain the photogrammetric products constructed from the aerial images taken, by providing survey-quality ground validation, which far exceeds the accuracy that can be provided from the photo geolocations alone. Transect points are used to validate the final accuracy of the products, and ground control points are used to geolocate the products as accurately as possible.

Supplemental_Information:

These data were collected by the USGS Coastal/Marine Hazards and Resources Program under USGS field activity number 2018-015-FA. The field activity webpage (https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-015-FA) contains additional information regarding the field activity.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20180227

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: Not planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.821671
East_Bounding_Coordinate: -70.805726
North_Bounding_Coordinate: 42.777831
South_Bounding_Coordinate: 42.769101

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5c98d30ce4b0b8a7f6288b7c

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal/Marine Harzards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: navigation
Theme_Keyword: transect points
Theme_Keyword: ground control points
Theme_Keyword: Global Positioning System
Theme_Keyword: Spectra Precision SP80
Theme_Keyword: Carlson SurvCE
Theme_Keyword: GPS

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: navigational data

Theme:

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

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: USA
Place_Keyword: Massachusetts
Place_Keyword: Parker River
Place_Keyword: Plum Island
Place_Keyword: Parker River National Wildlife Refuge

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_Organization_Primary:

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

Contact_Position: Physical Scientist
Contact_Address:

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

Contact_Voice_Telephone: 508-548-8700 x2265
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sbrosnahan@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/5c98d30ce4b0b8a7f6288b7c?name=2018015FA_gcptrans_browse.jpg

Browse_Graphic_File_Description:

Browse graphic showing the locations of the ground control points and the transect points.

Browse_Graphic_File_Type: JPEG

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Spectra Precision SP80 GNSS receivers were used to collect the ground control points and transect coordinates.

Logical_Consistency_Report:

The CSV file lists the locations for all ground control and transect points. The columns contain, in order, original ID, northing, easting, elevation, date collected, and whether it's a target or transect. The target names (ORIGINAL_ID) are uniquely named (e.g P1, T20, T31); each transect (consisting of several GPS fixes along a survey line) has a unique location, however the points for that transect are all named similarly. Targets included 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). The commercial targets were designated Tnn and the plywood targets were designated Pnn, where nn is the one or two digit target number. GPS rover instruments were used by field crews to map targets for ground control points.

Completeness_Report:

Locations for all of the ground control points and transect points collected are listed in the CSV text file.

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 temporary benchmark. The base station was a Spectra model SP80 GNSS receiver with UHF radio and external antenna mounted on a tripod. The antenna height was 2.25 m. The coordinates of the reference point were determined from an ultra-rapid precise orbit On-line Positioning User Service (OPUS) solution. Spectra Precision model SP80 GNSS receivers were also used as rovers, which linked via Bluetooth to a data collector (Carlson CHC LT30 Handheld Terminal running Carlson SurvCE v. 4.06 software under Windows Mobile v. 6.1 Professional operating system). Rover antennas were mounted on 2-m survey rods with bubble levels and 5-cm (2-inch) sand feet. Conversions from satellite coordinates to NAD83(2011) UTM zone 19N (EPSG::6348) and NAVD88 were made by Carlson SurvCE software in the data collector. Horizontal accuracy based on the reoccupation of a stake locations was 1.5 cm. The uncertainty of OPUS fixes for the RTK-GPS base stations adds another .26 cm of uncertainty, therefore, the theoretical horizontal accuracy of the GCP and transect points is + or - 1.76 cm.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Vertical positions were determined with the GNSS rovers receiving real-time differential corrections from a GNSS base station established over a temporary benchmark. The combined vertical uncertainty of OPUS fixes for the RTK-GPS base stations, and the ground control and transect locations is 0.54 cm.

Lineage:

Process_Step:

Process_Description:

Ground control points and transect points, are listed in the CSV file 2018015FA_PlumIsland_GCP.csv. Targets and transect measurements were exported from the data collectors as text file in the RW5 format and then processed (referenced to the base OPUS rapid static solution) and exported to comma-separated values (CSV) files using the Carlson Report Generator for a SurvCE RW5 Report (https://www.carlsonemea.com/cwa/report ). Rover datasets were combined and manually edited to filter by transect point or ground control point and extraneous columns were removed. The target data are used as an input to the Agisoft Photoscan or Pix4D software to control the data horizontally and vertically. The transect points collected within the study area are used to ground truth data products (Point Cloud, DEM and Orthomosaic) created in Agisoft Photoscan, and Pix4D.

Process_Date: 20181008
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, Woods Hole Coastal and Marine Science Center

Contact_Person: Sandra Brosnahan

Contact_Position: Physical Scientist
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543
Country: U.S.A.

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: 20200806
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
Point_and_Vector_Object_Count: 81

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: -75.00000
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 (2011)
Ellipsoid_Name: Geodetic Reference System 80
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 (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: 2018015FA_PlumIsland_GCP.csv
Entity_Type_Definition:

Target points and transect points collected using surveying techniques. These points are used in post-processing to improve the quality of the positioning in the final photogrammetric products (ground control points) and it assessing the vertical accuracy of the final products (transects)

Entity_Type_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: ORIGINAL_ID
Attribute_Definition:

Provides the unique name for each target or the transect identifier to which the point belongs. Transects consists of several records - and in this case the only transect has the unique identifier ROAD.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: Northing
Attribute_Definition: Northing coordinate in UTM Zone 19 meters, NAD83 (2011)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4736783.095
Range_Domain_Maximum: 4737725.293
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: Easting
Attribute_Definition: Easting coordinate in UTM Zone 19 meters, NAD83 (2011)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 350982.1411
Range_Domain_Maximum: 352266.9748
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: Elevation
Attribute_Definition: Orthometric elevation relative to NAVD88 (geoid12b)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.3501
Range_Domain_Maximum: 2.7804
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: DATE_Collected
Attribute_Definition: Date of point collection in mm/dd/yy format
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: character set to represent calendar date of collection

Attribute:

Attribute_Label: Description
Attribute_Definition:

simple descriptor used to distinguish between ground control points (Target) and transect points (TRANS)

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: character set

Overview_Description:

Entity_and_Attribute_Overview:

The text file 2018015FA_PlumIsland_GCP.csv lists the locations of all ground control points and transect points. The text contains one header record, and data records with six columns of comma-separated values defined by the attribute labels. The columns contain, in order, the name, northing, easting, elevation, date collected, and whether it's a target or transect. The target names (ORIGINAL_ID) are uniquely named (e.g T20, H351); the transect (consisting of several GPS fixes along a survey line) has a unique name (ROAD).

Entity_and_Attribute_Detail_Citation: USGS Field Activity 2018-015-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 dataset contains the CSV file of ground control and transect points (2018015FA_GCP_PlumIsland.csv), a browse graphic showing the location of the points (2018015FA_gcptrans_browse.jpg), and CSDGM metadata in XML format.

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 downloaded data consists of the CSV file of ground control points and transect, browse graphic, and the CSDGM metadata.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/5c98d30ce4b0b8a7f6288b7c

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/5c98d30ce4b0b8a7f6288b7c

Network_Resource_Name: https://doi.org/10.5066/P9O9NSRK

Access_Instructions:

The first link downloads all the information on the dataset landing page, the second link is to the dataset landing page, and the third link is to the main landing page of the data release.

Fees: none

Technical_Prerequisites:

Adequate computer capability is the only technical prerequisite for viewing data in digital form.

Metadata_Reference_Information:

Metadata_Date: 20240319
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

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

Contact_Position: Physical Scientist
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 x2265
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 person is no longer with USGS. (updated on 20240319)

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P9O9NSRK/2018015FA_GCP_PlumIsland.html>