Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2016 Title: Lidar-Derived Classified Bare-Earth Point-Cloud for Coastal Topography—Fire Island, New York, 07 May 2012 Edition: first Geospatial_Data_Presentation_Form: binary point cloud Series_Information: Series_Name: U.S. Geological Survey Data Release Issue_Identification: doi:10.5066/F7513WBW Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F7513WBW Description: Abstract: Binary point-cloud data were produced for Fire Island, New York, from remotely sensed, geographically referenced elevation measurements collected by Photo Science, Inc. using an Optech Gemini lidar sensor flown on a Cessna 206 aircraft. Purpose: The purpose of this project was to produce a highly detailed and accurate digital elevation map for Fire Island, New York, 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 retroactively assigned a USGS field activity number (FAN), 12CNT09. Additional survey and data details are available at http://cmgds.marine.usgs.gov/fan_info.php?fan=12CNT09. USGS Contract: G10PC00026 Task Order Number: G10PD00588 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. Photo Science, Inc. reports that project specifications are based on the USGS-National Geospatial Program Base Lidar Specification, version 13 and that data are provided in LAS version 1.2 and include ASPRS Class 1: Processed, but unclassified; Class 2: Bare-earth ground; Class 7: Noise; Class 11: Water; Class 14: Bare Water Ocean Surface; Class 17: USGS Overlap Default; Class 18: USGS Overlap Ground. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20120507 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -73.32130619 East_Bounding_Coordinate: -72.74966140 North_Bounding_Coordinate: 40.78366938 South_Bounding_Coordinate: 40.60639852 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:2fcad62b-7cfa-450c-bb6c-63829b6e093a Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: Cessna 206 Theme_Keyword: laser altimetry Theme_Keyword: lidar Theme_Keyword: Optech Gemini 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: Fire Island Place_Keyword: Long Island Place_Keyword: New York Place_Keyword: United States Stratum: Stratum_Keyword_Thesaurus: General Stratum_Keyword: Bare Earth Temporal: Temporal_Keyword_Thesaurus: General Temporal_Keyword: 2012 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: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL Contact_Position: Cartographer/Lidar Coordinator 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 Hours_of_Service: M-F, 8:00-4:00 ET 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; MicroStation Version 8; TerraScan Version 12; TerraModeler Version 12; GeoCue Version 2011.1.20.3; ESRI ArcGIS 10.0; Global Mapper 13; Optech DashMAP 5.2000 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Photo Science, Inc. reports that the project area required LiDAR to be collected on 0.5 meter GSD or better and processed to meet a bare earth vertical accuracy of 12.5 centimeters RMSEz or better. Logical_Consistency_Report: Photo Science, Inc. reports that the Classified LAS files were tested by Photo Science for both vertical and horizontal accuracy and that all data is seamless from one tile to the next, no gaps or no data areas. Completeness_Report: Photo Science, Inc. reports that all deliverables meet specifications in contract and that the LAS Files meet ASPRS and USGS Classification Standards at the time of data delivery, including ASPRS classes 1, 2, 7, 11, 14, 17, and 18. Positional_Accuracy: Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Photo Science, Inc. reports that the Classified LAS files were tested for both vertical and horizontal accuracy and that all data is seamless from one tile to the next, no gaps or no data areas. They also report that the vertical unit of the data file is in decimal meters with 2-decimal point precision and that the reported RMSEz value was determined using the calibration control points, and not the Blind Control. Photo Science, Inc. reports that the calibration control points are the same points that were used to remove any bias in the dataset before bare earth editing and that the listed RMSEz value shown below was calculated from the ground (ASPRS Class 2) data in the final Classified LAS file. Lineage: Process_Step: Process_Description: Photo Science, Inc. reported that Applanix software was used in the post processing of the airborne GPS and inertial data that is critical to the positioning and orientation of the sensor during all flights and that POSPac MMS provides the smoothed best estimate of trajectory (SBET) that is necessary for Optech's post processor to develop the point cloud from the LiDAR missions. They also reported that the point cloud is the mathematical three dimensional collection of all returns from all laser pulses as determined from the aerial mission and at this point this data is ready for analysis, classification, and filtering to generate a bare earth surface model in which the above ground features are removed from the data set. Photo Science, Inc. reported that the point cloud was manipulated within the Optech software; GeoCue, TerraScan, and TerraModeler software was used for the automated data classification, manual cleanup, and bare earth generation from this data and that project specific macros were used to classify the ground and to remove the side overlap between parallel flight lines; also that all data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler. They also reported that a new class has been added to the dataset to represent the bare water of the ocean areas collected throughout the project area; ASPRS Class 14 is being used to represent the bare water ocean surface and while attempts were made to remove all extraneous features above the surface of the water, there may be above surface features classified to this class. Photo Science, Inc. reported that some islands below the required collection specifications have been classified to this class as well and that this class was also used during the creation of the ERDAS Imagine Raster DEM files. They also reported that the Ocean Shoreline and Ocean Island breaklines were used to complete the automated classification of these classes within the final LAS files and that all overlap data was processed through automated functionality provided by TerraScan to classify the overlapping flight line data to approved classes by USGS; the overlap data was classified to Class 17 (USGS Overlap Default), and Class 18 (USGS Overlap Ground). Photo Science, Inc. reported that these classes were created through automated processes only and were not verified for classification accuracy and that due to software limitations within TerraScan, these classes were used to trip the Withheld bit within various software packages; these processes were reviewed and accepted by USGS through multiple conference calls and pilot study areas for the LIDAR for the Northeast project (USGS Task Order: G10PD02143 and G10PD01027). They also reported that data were then run through additional macros to ensure deliverable classification levels matching the ASPRS LAS Version 1.2 Classification structure and that GeoCue functionality was then used to ensure correct LAS versioning. Photo Science, Inc. reported that in-house software was used as a final QA/QC check to provide LAS Analysis of the delivered tiles and that QA/QC checks were performed on a per tile level to verify final classification metrics and full LAS header information. Process_Date: 2012 Source_Produced_Citation_Abbreviation: Classified LAS Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Photo Science, Inc. 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 Hours_of_Service: Monday through Friday 8:00 AM to 5:00 PM (Eastern Time) 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: 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: 0.5 Ordinate_Resolution: 0.5 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 (2007) 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 (GEOID09) 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: Cartographer/Lidar Coordinator 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 Hours_of_Service: M-F, 8:00-4:00 ET Resource_Description: FIIS2012_BE_z18_n88g09_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: 1.2 Format_Specification: Compressed LAS (LAZ) ASPRS Classes 1,2,7,11,14,17,18 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-F7513WBW/data/FIIS2012_BE_z18_n88g09_classified.laz Fees: None Custom_Order_Process: Contact U.S. Geological Survey for details. Metadata_Reference_Information: Metadata_Date: 20201102 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Xan Fredericks Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL Contact_Position: Cartographer/Lidar Coordinator 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_Electronic_Mail_Address: afredericks@usgs.gov Hours_of_Service: M-F, 8:00-4:00 ET Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time