ASIS2015_HRJQ_BE_z18_n88g12B_classified_metadata: Lidar-Derived Classified Bare-Earth Point-Cloud for Coastal Topography—Assateague Island, Maryland and Virginia, Post-Hurricane Joaquin, 26 November 2015

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 20160506
Title:

ASIS2015_HRJQ_BE_z18_n88g12B_classified_metadata: Lidar-Derived Classified Bare-Earth Point-Cloud for Coastal Topography—Assateague Island, Maryland and Virginia, Post-Hurricane Joaquin, 26 November 2015

Edition: first
Geospatial_Data_Presentation_Form: binary point cloud
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F70P0X4G

Publication_Information:

Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F70P0X4G

Description:

Abstract:

Binary point-cloud data were produced for Assateague Island, Maryland and Virginia, post-Hurricane Joaquin, from remotely sensed, geographically referenced elevation measurements collected by Quantum Spatial using a Leica ALS70 (1064-nm wavelength) lidar sensor.

Purpose:

The purpose of this project was to produce a highly detailed and accurate digital elevation map for Assateague Island, Maryland and Virginia for use as a management tool and to make these data available to natural-resource managers and research scientists. To ensure that SPCMSC data management protocols were followed, this survey was assigned a USGS field activity number (FAN), 2015-344-FA. Additional survey and data details are available at http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-344-FA. USGS Contract: G10PC00026 Task Order Number: G16PD00038

Supplemental_Information:

Processed data products are used by the U.S. Geological Survey (USGS) CMGP's National Assessment of Coastal Change Hazards project to quantify the vulnerability of shorelines to coastal change hazards such as severe storms, sea-level rise, and shoreline erosion and retreat.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20151126

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -75.4295
East_Bounding_Coordinate: -75.0739
North_Bounding_Coordinate: 38.3396
South_Bounding_Coordinate: 37.8387

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:f3055d6c-a8ad-477e-b979-a21cc09ed112

Theme:

Theme_Keyword_Thesaurus: General
Theme_Keyword: Digital Elevation Model
Theme_Keyword: DEM
Theme_Keyword: extratropical cyclone
Theme_Keyword: laser altimetry
Theme_Keyword: lidar
Theme_Keyword: Piper Navajo
Theme_Keyword: remote sensing
Theme_Keyword: shoreline
Theme_Keyword: topography

Theme:

Theme_Keyword_Thesaurus: Global Change Master Science Directory
Theme_Keyword: LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
Theme_Keyword: OCEAN > COASTAL PROCESSES > BARRIER ISLANDS
Theme_Keyword: OCEAN > COASTAL PROCESSES > BEACHES
Theme_Keyword: OCEAN > COASTAL PROCESSES > SHORELINE DISPLACEMENT
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: Geographic Names Information System
Place_Keyword: Assateague Island
Place_Keyword: Maryland
Place_Keyword: Virginia
Place_Keyword: Delmarva Peninsula
Place_Keyword: United States

Stratum:

Stratum_Keyword_Thesaurus: General
Stratum_Keyword: Bare Earth

Temporal:

Temporal_Keyword_Thesaurus: General
Temporal_Keyword: 2015
Temporal_Keyword: Post-Hurricane Joaquin

Access_Constraints: None
Use_Constraints:

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of these data in future products or derivative research.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Xan Fredericks
Contact_Organization:

Cherokee Nation Technologies, U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL

Contact_Position: Lidar Validation and Processing Analyst
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: 727 502-8086
Contact_Facsimile_Telephone: 727 502-8182
Contact_Electronic_Mail_Address: afredericks@usgs.gov

Data_Set_Credit:

Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other periods may be inaccurate because of inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.

Security_Information:

Security_Classification_System: Unclassified
Security_Classification: Unclassified
Security_Handling_Description: None

Native_Data_Set_Environment:

Microsoft Windows 7 Enterprise Service Pack 1; Esri ArcCatalog 10.2.2.3552

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Logical_Consistency_Report:

Quantum Spatial reports that data cover the entire area specified for this project.

Completeness_Report:

Quantum Spatial reports that these raw LAS data files include all data points collected and that no points have been removed or excluded. Quantum Spatial performed a visual qualitative assessment to ensure data completeness and reported no void areas or missing data exist. Quantum Spatial reports that the raw point cloud is of good quality and data passes Nonvegetated Vertical Accuracy specifications.

Positional_Accuracy:

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Quantum Spatial reports that the contract specifications required that only Nonvegetated Vertical Accuracy (NVA) were computed for raw lidar point cloud swath files. The vertical accuracy was tested with 13 independent surveys located in open terrain. These check points were not used in the calibration or post-processing of the lidar point cloud data. The survey check points were distributed throughout the project area. The independent check points were surveyed using the closed level loop technique. Elevations from the unclassified lidar surface were measured for the x,y location of each check point. Elevations interpolated from the lidar surface were then compared to the elevation values of the surveyed control. The RMSE was computed to be 0.042. AccuracyZ has been tested as 0.082 meters AccuracyZ at 95 percent Confidence Interval, meeting 19.6 cm NVA at 95 percent confidence level using (RMSEz * 1.9600) as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/American Society of Photogrammetry and Remote Sensing (ASPRS) Guidelines.

Lineage:

Process_Step:

Process_Description:

Classified LAS Creation: The bare-earth surface is then manually reviewed to ensure correct classification on the Class 2 (Ground) points. After the bare-earth surface is finalized, it is then used to generate all hydro-breaklines through heads-up digitization. All ground (ASPRS Class 2) LiDAR data inside of the lake/pond and double-line drain hydro-flattening breaklines were then classified to water (ASPRS Class 9) using TerraScan macro functionality. A buffer of 1 meter was also used around each hydro-flattened feature to classify these ground (ASPRS Class 2) points to ignored ground (ASPRS Class 10). All lake/pond island and double-line drain island features were checked to ensure that the ground (ASPRS Class 2) points were reclassified to the correct classification after the automated classification was completed. All bridge decks were classified to Class 17. All overlap data were processed through automated functionality provided by TerraScan to classify the overlapping flight line data to approved classes by USGS. The overlap data were identified using the Overlap Flag, per LAS 1.4 specifications. All data were manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler. Global Mapper was used as a final check of the bare-earth dataset. GeoCue was then used to create the deliverable industry-standard LAS files for both the unclassified point-cloud data and the bare-earth data. Quantum Spatial proprietary software was used to perform final statistical analysis of the classes in the LAS files, on a per-tile level to verify final classification metrics and full LAS header information.

Process_Date: 2015
Source_Produced_Citation_Abbreviation: Classified LAS
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Quantum Spatial

Contact_Address:

Address_Type: mailing and physical
Address: 523 Wellington Way
City: Lexington
State_or_Province: KY
Postal_Code: 40503
Country: USA

Contact_Voice_Telephone: 859-277-8700
Contact_Facsimile_Telephone: 859-277-8901

Process_Step:

Process_Description:

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

Process_Date: 20170104
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:

Indirect_Spatial_Reference: Tile
Direct_Spatial_Reference_Method: Point

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
False_Easting: 500000.000000
False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 0.01
Ordinate_Resolution: 0.01

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.25722210100002

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988 (GEOID12B)
Altitude_Resolution: 0.15
Altitude_Distance_Units: meters
Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Xan Fredericks

Contact_Position:

Lidar Validation and Processing Analyst, Cherokee Nation Technologies

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: 727 502-8086

Resource_Description: ASIS2015_HRJQ_BE_z18_n88g12B_classified.laz
Distribution_Liability:

Although these data 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 on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, firm, or product 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: Compressed LAS (LAZ)
Format_Version_Number: 1.4
Format_Specification: Compressed LAS (LAZ)

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-F70P0X4G/data/ASIS2015_HRJQ_BE_z18_n88g12B_classified.laz

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20230927
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Xan Fredericks
Contact_Organization:

Cherokee Nation Technology Solutions, U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL

Contact_Position: Lidar Validation and Processing Analyst
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: 727 803-8747 (x3086)
Contact_Electronic_Mail_Address: afredericks@usgs.gov

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

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