U.S. Geological Survey
2016
Lidar-Derived Bare-Earth Digital Elevation Model (DEM) Mosaic for Coastal Topography—Fire Island, New York, 07 May 2012
first
raster digital data
U.S. Geological Survey Data Release
doi:10.5066/F7513WBW
St. Petersburg, FL
U.S. Geological Survey
https://doi.org/10.5066/F7513WBW
A digital elevation model (DEM) mosaic was 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
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 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
Processed data products are used by the U.S. Geological Survey 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.
20120507
ground condition
None planned
-73.32130073
-72.74971703
40.78366308
40.60638627
USGS Metadata Identifier
USGS:0fa0460a-e4ce-4bd0-a8ae-8c36f1754dca
ISO 19115 Topic Category
elevation
General
Digital Elevation Model
DEM
laser altimetry
lidar
Cessna 206
Optech Gemini
remote sensing
shoreline
topography
Global Change Master Science Directory
LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
OCEAN > COASTAL PROCESSES > BARRIER ISLANDS
OCEAN > COASTAL PROCESSES > BEACHES
OCEAN > COASTAL PROCESSES > SHORELINE DISPLACEMENT
DOI/USGS/CMG > COASTAL AND MARINE GEOLOGY, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF INTERIOR
GCMD Instrument
LIDAR > LIGHT DETECTION AND RANGING
Data Categories for Marine Planning
distributions
bathymetry and elevation
Marine Realms Information Bank (MRIB) Keywords
altimetry
topographic mapping
USGS Thesaurus
LIDAR
topography
digital elevation models
Geographic Names Information System
Fire Island
Long Island
New York
United States
General
Bare Earth
General
2012
None
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.
Xan Fredericks
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Cartographer/Lidar Coordinator
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8086
727 502-8182
afredericks@usgs.gov
M-F, 8:00-4:00 ET
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.
Unclassified
Unclassified
None
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
Photo Science, Inc. reports that data contain complete coverage of tiles and that "NoData" values, if present, correspond with values outside of the project area and are represented with a value of -9999.
These data cover Fire Island, New York.
Photo Science, Inc. reports that the Raster DEMs were tested for both vertical and horizontal accuracy and that all data are seamless from one tile to the next, without 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 of 0.041 was determined using the calibration control points, and not the Blind Control; and that the calibration control points are the same points that were used to remove any bias in the dataset before bare earth editing. The listed RMSEz value of 0.041 was calculated from the ground (ASPRS Class 2) data in the final Classified LAS file.
Photo Science, Inc. reports 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. 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. The point cloud is the mathematical three dimensional collection of all returns from all laser pulses as determined from the aerial mission. 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. 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. Project specific macros were used to classify the ground and to remove the side overlap between parallel flight lines. All data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler. Using automated scripting routines within ArcMap, the ground (ASPRS Class 2) and bare water (USGS Class 14) were used to create the 1 meter DEM. Final DEM tiles were clipped to the project tile boundary to provide a seamless dataset. ERDAS IMG files were then created as the project deliverable. A manual QA review of the tiles was completed in ArcMap and Global Mapper to ensure full coverage with no gaps or slivers within the project area.
2012
Bare-Earth Raster DEMs
Photo Science, Inc.
mailing and physical
523 Wellington Way
Lexington
KY
40503
USA
859-277-8700
859-277-8901
Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)
The provided DEM .IMG files were mosaicked using Global Mapper 16 (20160808) and exported as a GeoTIFF.
20160808
Xan Fredericks
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Cartographer/Lidar Coordinator
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8086
afredericks@usgs.gov
M-F, 8:00-4:00 ET
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
20170124
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Added keywords section with USGS persistent identifier as theme keyword.
20201013
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Tiling Index
Raster
Pixel
Universal Transverse Mercator
18
0.999600
-75.000000
0
500000.000000
0
row and column
1.00000
1.00000
meters
North American Datum of 1983 (2007)
Geodetic Reference System 80
6378137.000000
298.25722210100002
North American Vertical Datum of 1988 (GEOID09)
0.15
meters
Explicit elevation coordinate included with horizontal coordinates
U.S. Geological Survey
Xan Fredericks
Cartographer/Lidar Coordinator
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8086
M-F, 8:00-4:00 ET
FIIS2012_BE_z18_n88g09_mosaic.tif
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.
GeoTIFF
2
GeoTIFF
https://coastal.er.usgs.gov/data-release/doi-F7513WBW/data/FIIS2012_BE_z18_n88g09_mosaic.tif
None
Contact U.S. Geological Survey.
Vary
Contact U.S. Geological Survey for details.
20201102
Xan Fredericks
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Cartographer/Lidar Coordinator
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8086
afredericks@usgs.gov
M-F, 8:00-4:00 ET
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time