Terrestrial-Based Lidar Beach Topography of Fire Island, New York, May 2015 - DEM data

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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: 2016
Title:

Terrestrial-Based Lidar Beach Topography of Fire Island, New York, May 2015 - DEM data

Geospatial_Data_Presentation_Form: Raster digital data
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7862DKH

Publication_Information:

Publication_Place: St. Petersburg, FL
Publisher: St. Petersburg Coastal and Marine Science Center

Online_Linkage: https://doi.org/10.5066/F7862DKH
Larger_Work_Citation:

Citation_Information:

Originator: Owen Brenner
Originator: Cheryl J. Hapke
Originator: Katie G. Lee
Originator: Dustin R. Kimbrow
Publication_Date: 2016
Title:

Terrestrial-Based Lidar Beach Topography of Fire Island, New York, June 2014

Geospatial_Data_Presentation_Form:Series_Information:

Series_Name: U.S. Geological Survey Data Series
Issue_Identification: Data Series 980

Publication_Information:

Publication_Place: St. Petersburg, FL
Publisher: St. Petersburg Coastal and Marine Science Center

Online_Linkage: https://doi.org/10.3133/ds980

Description:

Abstract:

The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) and the USGS Lower Mississippi-Gulf Water Science Center (LMG WSC) in Montgomery, Alabama, collected terrestrial-based light detection and ranging (T-lidar) elevation data at Fire Island, New York. The data were collected on May 18, 2015 as part of the ongoing beach monitoring within Hurricane Sandy Supplemental Project GS2-2B, and will be used to document and assess the morphological storm response and post-storm beach recovery. The survey extended along 30 kilometers(km) of the Fire Island National Seashore, from the eastern boundary of Robert Moses State Park to the western boundary of Smith Point County Park. This USGS Data Release includes the resulting processed elevation point data (xyz) and an interpolated digital elevation model (DEM). For further information regarding data collection and/or processing methods, refer to previously published USGS Data Series 980 (https://doi.org/10.3133/ds980).

Purpose:

To collect, process, and disseminate beach topography data collected along 30 kilometers (km) of Fire Island, New York, from the eastern boundary of Robert Moses State Park to the western boundary of Smith Point County Park. To ensure that St. Petersburg Coastal and Marine Science Center (SPCMSC) data management protocols were followed, this survey was assigned a USGS field activity number (FAN), 2015-312-FA. Additional survey and data details are available at http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-312-FA.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20150518

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -73.2057
East_Bounding_Coordinate: -72.8662
North_Bounding_Coordinate: 40.7376
South_Bounding_Coordinate: 40.6266

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:65c15dee-af80-4c85-a05f-279400e11913

Theme:

Theme_Keyword_Thesaurus: General
Theme_Keyword: elevation data
Theme_Keyword: topography
Theme_Keyword: ground-based lidar
Theme_Keyword: terrestrial light detection and ranging system (T-lidar)
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Hurricane Sandy Supplemental: Fire Island

Theme:

Theme_Keyword_Thesaurus: Global Change Master Science Directory (GCMD)
Theme_Keyword: LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
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: GCMD Instrument
Theme_Keyword: LIDAR > LIGHT DETECTION AND RANGING

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: distributions
Theme_Keyword: bathymetry and elevation

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords
Theme_Keyword: altimetry
Theme_Keyword: topographic mapping

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: LIDAR
Theme_Keyword: topography
Theme_Keyword: digital elevation models

Place:

Place_Keyword_Thesaurus: General
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: General
Temporal_Keyword: 2015

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, St. Petersburg Coastal and Marine Science Center as the originator of these data in future products or derivative research.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Owen Brenner

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: 727-502-8068
Contact_Facsimile_Telephone: 727-502-8085
Contact_Electronic_Mail_Address: obrenner@usgs.gov

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The errors associated with the collection of elevation data can be classified as systematic or random. Systematic errors are those that can be measured or modeled through calibration (Byrnes and others, 2002). Random errors are a result of the limitations of the measuring device and an inability to perfectly model the systematic errors. Applanix's POSPac MMS software creates a positional accuracy file which is compared to 38 control points occupied prior to the T-lidar survey, using a real-time kinematic global positioning system (RTK-GPS) unit to evaluate the accuracy of the post-processed Smoothed Best Estimate of Trajectory (SBET) solution. The horizontal accuracy of the post-processed file has a minimum and maximum root mean square error (RMSE) of 0.5 and 1.8 centimeters (cm), respectively. The RMSE of the vertical accuracy ranged from 0.8 and 2.6 cm. Stated accuracies are based on peak-to-peak errors.

Logical_Consistency_Report:

Beach morphology data of Fire Island, New York, were collected by USGS Lower Mississippi-Gulf Water Science Center (LMG WSC) using a truck-mounted mobile T-lidar. The T-lidar instrument was mounted on top of a truck, and covered 30 km of Fire Island beach at speeds of less than 16 km per hour. Data were collected May 18, 2015. This system is composed of an Optech ILRIS HD-ER-MC high frequency laser scanner in conjunction with an Applanix POSMV inertial measurement unit (IMU). A global positioning system (GPS) base station was set up on a nearby benchmark and logged vertical and horizontal position information during the survey for post-processing. During post-processing, the POSPac MMS software uses differential correction algorithms to compute a SBET file. The SBET file is then applied to the raw T-lidar data along with the boresight parameter file using Optech Parser software to produce a geo-referenced point-cloud dataset. Thirty-eight additional topographic data points were collected for survey control using a RTK-GPS unit, which was used to assess system accuracy and variability. Point Cloud data is filtered and edited within Innovmetric Polyworks software to remove vegetation and any problematic or outlier point values.

Completeness_Report:

This dataset is considered complete for the information presented, as described in the abstract section. Missing areas are represented by a "NoData" value and are a result of the survey not covering a particular region. Users are advised to read the rest of the metadata record carefully for additional details.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The horizontal accuracy of the post-processed file has a minimum and maximum root mean square error (RMSE) of 0.5 and 1.8 cm, respectively.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

The RMSE of the vertical accuracy ranged from 0.8 to 2.6 cm. Stated accuracies are based on peak-to-peak errors.

Lineage:

Process_Step:

Process_Description:

Pre-Survey Calibration: The mobile T-lidar system requires a rigorous calibration procedure before accurate datasets can be generated. All instrumentation must first be surveyed, and their relative positions (lever arms) must be resolved with respect to the origin point of the IMU. Next, a boresight procedure is performed in order to determine the angular differences (that is, roll, pitch, and heading) between the IMU and the T-lidar instrument. USGS Lower Mississippi-Gulf Water Science Center (LMG WSC)

Process_Date: 2015
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS Lower Mississippi-Gulf Water Science Center (LMG WSC)
Contact_Person: Katie G. Lee

Contact_Position: Hydraulic Engineer
Contact_Address:

Address_Type: mailing and physical address
Address: 75 Technacenter Drive
City: Montgomery
State_or_Province: AL
Postal_Code: 36117
Country: USA

Contact_Voice_Telephone: 334-395-4120
Contact_Facsimile_Telephone: 334-395-4168
Contact_Electronic_Mail_Address: kmlee@usgs.gov

Process_Step:

Process_Description:

SBET and Point Cloud Creation: The POSMV system collected attitude and trajectory information during the survey, and these data were later post-processed using Applanix POSPac MMS (2013) software with GPS data, collected at a nearby benchmark. The POSPac MMS software uses differential correction algorithms to compute a smoothed best estimate of trajectory (SBET) file and associated positional accuracy report of the processed SBET. The SBET file is then applied to the raw T-lidar data along with the boresight parameter file using Optech Parser software to produce a geo-referenced point-cloud dataset.

Process_Date: 2015
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS Lower Mississippi-Gulf Water Science Center (LMG WSC)
Contact_Person: Katie G. Lee

Contact_Position: Hydraulic Engineer
Contact_Address:

Address_Type: mailing and physical address
Address: 75 Technacenter Drive
City: Montgomery
State_or_Province: AL
Postal_Code: 36117
Country: USA

Contact_Voice_Telephone: 334-395-4120
Contact_Facsimile_Telephone: 334-395-4168
Contact_Electronic_Mail_Address: kmlee@usgs.gov

Process_Step:

Process_Description:

Using Innovmetric Polyworks software, the point clouds were filtered using several methods: (1) intensity, (2) height above a digital elevation model (DEM) surface, and (3) visual inspection. A preliminary DEM surface was created using a 0.25-meter (m) grid, and points that were 0.1 m higher than the generated surface were removed. Vegetation was removed by selecting points above a DEM surface. Each point within the point cloud has an intensity value (ranges from 0 to 255) associated with it that represents the amount of near-infrared reflectance received by the T-lidar instrument. The points with relatively low intensity values were examined and removed, if necessary. Once the data were filtered, an updated DEM surface was generated and manually edited to remove any remaining outliers. Additionally, the data were edited to smooth out any differences caused by temporal data collection. The final ASCII text file containing xyz point-cloud data is then created at 1-m horizontal resolution.

Process_Date: 2015
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS Lower Mississippi-Gulf Water Science Center (LMG WSC)
Contact_Person: Katie G. Lee

Contact_Position: Hydraulic Engineer
Contact_Address:

Address_Type: mailing and physical address
Address: 75 Technacenter Drive
City: Montgomery
State_or_Province: AL
Postal_Code: 36117
Country: USA

Contact_Voice_Telephone: 334-395-4120
Contact_Facsimile_Telephone: 334-395-4168
Contact_Electronic_Mail_Address: kmlee@usgs.gov

Process_Step:

Process_Description:

Within Esri's ArcCatalog, the ASCII xyz point cloud file was converted to an ArcGIS multipoint feature using the ASCII 3D To Feature Class tool. An ArcGIS Digital Terrain Model was built from the xyz feature class using Create Terrain tool. A 1-m raster DEM was exported as a GeoTIFF from the terrain surface using the Terrain to Raster tool.

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: Owen Brenner

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: 33701-4846
Country: USA

Contact_Voice_Telephone: 727-502-8085
Contact_Facsimile_Telephone: 727-502-8001
Contact_Electronic_Mail_Address: obrenner@usgs.gov

Process_Step:

Process_Description:

Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.

Process_Date: 20170124
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Alan O. Allwardt

Contact_Position: Contractor -- Information Specialist
Contact_Address:

Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-460-7551
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aallwardt@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: Raster
Raster_Object_Information:

Raster_Object_Type: pixel

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: 1.000000
Ordinate_Resolution: 1.000000

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: 0.0001 cm
Altitude_Distance_Units: meters
Altitude_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: 20150518_FI_USGS_DEM.tif
Entity_Type_Definition: Elevation DEM
Entity_Type_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: Elevation
Attribute_Definition: Elevation value
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.7967
Range_Domain_Maximum: 6.2504
Attribute_Units_of_Measure: meters

Overview_Description:

Entity_and_Attribute_Overview: Elevation DEM raster created with 1-m cell size resolution.
Entity_and_Attribute_Detail_Citation:

Beach topography DEM for Fire Island, New York, created from data collected during a ground-based lidar survey conducted on May 18, 2015. DEM raster was interpolated from a ArcGIS terrain file using linear interpolation and 1-meter cell size. XY location data is projected in NAD83 UTM zone 18N and corresponding vertical values are in NAVD88.

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: Owen Brenner

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: 727-502-8085
Contact_Facsimile_Telephone: 727-502-8001

Resource_Description: 20150518_FI_USGS_DEM.tif
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 USGS 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: GeoTIFF and Esri World File
Format_Version_Number: 9.20
Format_Specification: TIFF elevation raster
Format_Information_Content: Zip file containing .tif DEM and .twf
File_Decompression_Technique: Use WinZip or 7-Zip
Transfer_Size: 9.1

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-F7862DKH/data/20150518_FI_USGS_DEM.zip

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20231103
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Person: Owen Brenner

Contact_Position: Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Country: U.S.

Contact_Voice_Telephone: 727-502-8085
Contact_Facsimile_Telephone: 727-502-8085
Contact_Electronic_Mail_Address: obrenner@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/20150518_FI_USGS_DEM_metadata.html>