Ground-Based XYZ Point Elevation Data Collected in May 2015 From Fire Island, New York

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20170424
Title:
Ground-Based XYZ Point Elevation Data Collected in May 2015 From Fire Island, New York
Geospatial_Data_Presentation_Form: Tabular digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: DS 1049
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: St. Petersburg Coastal and Marine Science Center
Online_Linkage:
https://pubs.usgs.gov/ds/1049/downloads/201505_Ground_Based_XYZ.zip
Larger_Work_Citation:
Citation_Information:
Originator: Timothy R. Nelson
Originator: Jennifer L. Miselis
Originator: Cheryl J. Hapke
Originator: Owen T. Brenner
Originator: Rachel E. Henderson
Originator: Billy J. Reynolds
Originator: Kathleen E. Wilson
Publication_Date: 20170424
Title:
Coastal bathymetry data collected in May 2015 from Fire Island, New York: The wilderness breach and shoreface
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: DS 1049
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: St. Petersburg Coastal and Marine Science Center
Online_Linkage: https://doi.org/10.3133/ds1049
Description:
Abstract:
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida, conducted a bathymetric survey of Fire Island, New York, from May 6 to 20, 2015. The U.S. Geological Survey is involved in a post-Hurricane Sandy effort to map and monitor the morphologic evolution of the wilderness breach as a part of the Hurricane Sandy Supplemental Project GS2-2B. During this study, bathymetry data were collected with single-beam echosounders and Global Positioning Systems, which were mounted to personal watercraft, along the Fire Island shoreface and within the wilderness breach. Additional bathymetry and elevation data were collected using backpack Global Positioning Systems on flood shoals and in shallow channels within the wilderness breach.
Purpose:
To determine the change Hurricane Sandy caused to the shoreface morphology and breach evolution at Fire Island, New York, USA, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a bathymetric survey of Fire Island from May 6 to 20, 2015. The objectives of the data collection were to map the morphology of the shoreface and the wilderness breach as part of the USGS Hurricane Sandy Supplemental Project GS2-2B. This dataset, 201505_Ground_Based_XYZ.zip, consists of elevation data collected with a backpack GPS system from subaerial and shallow flood shoals.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20150506
Ending_Date: 20150520
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.90793139
East_Bounding_Coordinate: -72.88394551
North_Bounding_Coordinate: 40.73824263
South_Bounding_Coordinate: 40.72281912
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:03ef7af6-8b72-4a08-9f9a-c73776236db1
Theme:
Theme_Keyword_Thesaurus: Global Change Master Science Directory (GCMD)
Theme_Keyword: OCEAN > COASTAL PROCESSES > BARRIER ISLANDS
Theme_Keyword: OCEAN > COASTAL PROCESSES > BEACHES
Theme_Keyword:
DOI/USGS/CMG > COASTAL AND MARINE GEOLOGY, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF INTERIOR
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: marine geology
Theme_Keyword: bathymetry
Theme_Keyword: shoals
Theme_Keyword: interferometry
Theme_Keyword: single-beam echosounder
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Hurricane Sandy Supplemental: Fire Island
Theme_Keyword: Hurricane Sandy
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificinformation
Theme_Keyword: elevation
Theme_Keyword: oceans
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Fire Island
Place_Keyword: Fire Island National Seashore
Place_Keyword: Long Island
Place_Keyword: New York
Place_Keyword: United States
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2015
Access_Constraints:
The U.S. Geological Survey requests that it be referenced as the originator of this dataset in any future products or research derived from these data.
Use_Constraints: These data should not be used for navigational purposes.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Timothy R. Nelson
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701-4846
Country: USA
Contact_Voice_Telephone: 727-502-8098
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: trnelson@usgs.gov
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The accuracy of the data is determined during data collection. This dataset is derived from a single field survey using identical equipment, set-ups, and staff; therefore, the dataset is internally consistent. Methods are employed to maintain data collection consistency aboard the platform. During mobilization, each piece of equipment was isolated to obtain internal- and external-offset measurements with respect to the survey platform. All the critical measurements were recorded manually and then digitally entered into their respective programs. For ground-based measurements, elevation between the ground and antenna was measured for each surveyor in a walking stride and accounted for during postprocessing. For the GPS base stations, the Ashtech ProFlex 500 system has a long static horizontal accuracy of 0.3 centimeters (cm) and 0.6 cm vertical accuracy. For the rovers, the postprocessed kinematic horizontal instrument accuracy is 1 cm and vertical accuracy is 2 cm. The Echotrac CV100 Digital Hydrographic Echo Sounder has a vertical accuracy of 0.01 m +/- 0.1 percent depth.
Logical_Consistency_Report:
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center collected shallow water bathymetric data of the shoreface and the wilderness breach on Fire Island, New York, in May 2015.
Completeness_Report:
This zip archive contains postprocessed horizontal position and vertical elevation point data (x,y,z) acquired with a backpack mounted GPS along the shoreface of Fire Island and the wilderness breach. This dataset is considered complete for the information presented, as described in the abstract section. Users are advised to read the online Data Series and the rest of the metadata record carefully for additional details.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The GPS antenna and receiver acquisition configuration used at the reference station was duplicated on the survey backpack (rover). The base receiver and the rover receiver recorded their positions concurrently at 10Hz recording intervals throughout the survey. All processed measurements are referenced to the base-station coordinates. All static base station GPS sessions were submitted for processing to the National Oceanographic and Atmospheric Administration (NOAA) and National Geodetic Survey (NGS) On-Line Positioning User Service (OPUS) software. OPUS results provided an error measurement for each daily solution with a horizontal accuracy estimated as 0.5 cm root mean squared (RMS). Rover kinematic (rover) GPS data were processed with GrafNav v8.50 software by Novatel. The combined horizontal error for the rover was assumed to be, at most, half of the calculated vertical uncertainty.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 4.3 cm
Horizontal_Positional_Accuracy_Explanation:
Static GPS data were processed using NOAA/NGS OPUS software and kinematic GPS data were processed with GrafNav v8.50 software by Novatel. Uncertainty was determined using Matlab (2015b).
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The GPS antenna and receiver acquisition configuration used at the reference station was duplicated on the mount. The base receiver and the rover receiver recorded the positions concurrently at 10 Hertz (Hz) recording intervals throughout the survey. All processed measurements are referenced to the base-station coordinates. OPUS results provided an error measurement for each daily solution. Applying these error measurements, the vertical accuracy of the base station was estimated to be 0.3 cm root mean squared (RMS). The kinematic (rover) trajectories were processed using GrafNav version 8.50 software by Novatel, Inc. An RMS of the elevation differences at backpack GPS trackline crossings were evaluated to determine vertical uncertainty. The combined vertical error from the base station coordinate solutions and the rover trajectories was 8.5 cm.
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: 8.5 cm
Vertical_Positional_Accuracy_Explanation:
Static GPS data were processed using NOAA/NGS OPUS software and kinematic GPS data were processed with GrafNav v8.50 software by Novatel. Trackline crossing elevation uncertainty were determined using Matlab (2015b).
Lineage:
Process_Step:
Process_Description:
Process Description: GPS Acquisition: GPS base stations were erected at benchmarks REST (near the town of Robins Rest) and U374 (NGS benchmark Permanent Identification number (PID#) KU0206) located on Fire Island. The base stations were equipped with Ashtech ProFlex 500 Global Navigation Satellite System (GNSS) receivers. The survey personal watercraft (PWC) (rovers) were equipped with ProFlex 500 GNSS receivers. The base and rover receivers recorded their positions concurrently at 10 Hertz (Hz) throughout the survey. Reference station coordinates were verified with Continuously Operating Reference Station (CORS) sites using the Online Positioning User Service (OPUS), available at http://www.ngs.noaa.gov/OPUS/. U374 used reference stations ZNY1, NYRH, CTDA;, REST used stations NYCI, NYRH, and MOR6, and the VC base used MOR6, CTGU, AND NYRH. OPUS- computed reference stations had horizontal errors of 0.4 cm for REST, 0.5 cm for U374, and 0.3 cm for VC. Vertical errors were 0.2 cm for REST, 0.3 cm for U374, and 1.5 cm for VC.
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Contact_Person: Billy J. Reynolds
Contact_Position: Engineering Technician
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th St. S
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8067
Contact_Facsimile_Telephone: 727-502-8181
Contact_Electronic_Mail_Address: breynolds@usgs.gov
Process_Step:
Process_Description:
Ground-Based Mapping: Elevation data were collected using two Ashtech Z-Xtreme GPS receivers mounted in SECO backpacks with Ashtech Marine antennas attached to a pole extending above the head of the surveyor. The elevation of the antennas relative to the ground was measured for each surveyor in a walking stride position (varying between 2.07 and 2.10 m). The surveyors did not follow a pre-defined path but collected data over as much of the subaerial and shallow shoals and beach as possible during low tide.
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Contact_Person: Owen T. Brenner
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th St. S
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8085
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: obrenner@usgs.gov
Process_Step:
Process_Description:
Ground-Based Differentially Corrected Navigation Processing: Locations associated with backpack position were postprocessed using a differential correction derived from the base/rover setup. The base-station coordinates were imported into GrafNav version 8.5 (Waypoint Product Group) and the GPS data from the backpack surveys were processed to the concurrent GPS session data at the base stations. The horizontal and vertical coordinates of the backpack data points were saved in NAD83 and NAVD88 and exported as ASCII files.
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Contact_Person: Billy J. Reynolds
Contact_Position: Engineering Technician
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th St. S
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8067
Contact_Facsimile_Telephone: 727-502-8181
Contact_Electronic_Mail_Address: breynolds@usgs.gov
Process_Step:
Process_Description:
Ground-Based Data Processing: Using ArcGIS, erroneous ground-based horizontal and vertical positions, such as those that occurred when the surveyor took off the backpack and was transported between shoals, were removed. Once all extraneous data points were removed, the remaining data were saved as an ASCII file.
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Contact_Person: Owen T. Brenner
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th St. S
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8085
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: obrenner@usgs.gov
Process_Step:
Process_Description:
Ground-Based Error Analysis: Using Matlab (2015b), ground-based GPS elevation errors were calculated by segmenting temporally sequential elevations into 10-minute segments and identifying crossings between segments where an elevation was within at least 0.25 m. The calculated RMS of those intersections is 8.5 cm. Elevation differences between the ground-based and single-beam data points indicated the ground-based elevations were 1.8 cm higher than elevations recorded using PWCs. Given the high degree of uncertainty arising from variations in the stride of the backpack surveyor over a subaqueous surface, the data were adjusted to the single-beam elevation at the crossings. The adjusted positions, elevation, and time of sampling were saved as an ASCII file.
Source_Used_Citation_Abbreviation: 201505_Ground_Based_XYZ.csv
Process_Date: 2016
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Contact_Person: Timothy R. Nelson
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th St. S
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8098
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: trnelson@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20201013
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: 69,557
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: 0.6096
Ordinate_Resolution: 0.6096
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum 1983
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 1988
Altitude_Resolution: 0.001 m
Altitude_Distance_Units: meter
Altitude_Encoding_Method: Attribute values
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 201505_Ground_Based_XYZ.csv
Entity_Type_Definition:
Comma-delimited x,y,z file containing location, elevation, and date information collected with backpack GPS systems
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Easting_m
Attribute_Definition: NAD83 UTM x-axis coordinate (Zone 18)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 676685
Range_Domain_Maximum: 678673
Attribute_Units_of_Measure: Meter
Attribute:
Attribute_Label: Northing_m
Attribute_Definition: NAD83 UTM y-axis coordinate (Zone 18N)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4510140
Range_Domain_Maximum: 4511806
Attribute_Units_of_Measure: Meter
Attribute:
Attribute_Label: elevation
Attribute_Definition: z-value (elevation) in NAVD88
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -5.678
Range_Domain_Maximum: 2.089
Attribute_Units_of_Measure: Meter
Attribute:
Attribute_Label: Date
Attribute_Definition: Coordinated Universal Time (UTC) date of sample collection
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 05/17/2015
Range_Domain_Maximum: 05/19/2015
Overview_Description:
Entity_and_Attribute_Overview:
Comma-delimited x,y,z file containing UTM X, UTM Y locations and corresponding Z-elevation values, all in meters, as well as date of sample collection.
Entity_and_Attribute_Detail_Citation:
Nelson, T.R., Miselis, J.L., Hapke, C.J., Brenner, O.T., Henderson, R.E., Reynolds, B.J., Wilson, K.E., 20175, Coastal Bbathymetry Ddata Ccollected in May 2015 from Fire Island, New York—: tThe Wwilderness Bbreach and Sshoreface: U.S. Geological Survey Data Series ###, https://dx.doi.org/10.3133/ds###.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Contact_Person: Timothy R. Nelson
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8098
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: trnelson@usgs.gov
Resource_Description: 201505_Ground_Based_XYZ.csv
Distribution_Liability:
This digital publication was prepared by an agency of the United States Government. Although these data were processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII
File_Decompression_Technique: ZIP
Transfer_Size: 0.657
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://pubs.usgs.gov/ds/1049/downloads/201505_Ground_Based_XYZ.zip
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20210923
Metadata_Review_Date: 20160824
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
Contact_Person: Kathleen E. Wilson
Contact_Position: Researcher
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8099
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: kwilson@usgs.gov
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/spcmsc/201505_Ground_Based_XYZ.html>
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