2010 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) Lidar: New York (Topo)
This kmz file shows the extent of coverage for the 2010 USACE New York lidar data set.
These files contain topographic lidar data classified as ground (2) and unclassified (1) in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards. These data were collected by the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system along the coast of New York. CHARTS integrates topographic and bathymetric lidar sensors, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Data coverage generally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction (bathymetry). Native lidar data is not generally in a format accessible to most Geographic Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). Vertical positions are referenced to the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID03 model is used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). The 3-D position data are sub-divided into a series of LAS files, each covering approximately 5 kilometers of shoreline. The file index is provided by the shape file, "ny_boxes.shp", and the numbers used to identify files are in the "Box" field of the shape file. The LAS file naming convention is based on the year, project, area name, "Box," and the product type. An example file name is "2010_NCMP_NY_24_GeoClassified.las", where 2010 is the year of data collection, NCMP is the project under which data were collected, NY is the area of data collection, 24 is the "Box" number and "GeoClassified" is the product type. The format of the file is LAS version 1.1.
|Distributor||DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National
Oceanic and Atmospheric Administration, U.S. Department of Commerce
|Dataset Point of Contact||Data Production Manager
US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX)
Documentation links not available.
|Data Presentation Form:||
|Dataset Progress Status||Complete|
|Data Update Frequency:||As needed|
There was significant coastal change in the survey area of project 2010_NCMP_NY. During data product production it was not possible to combine topographic (red laser) data coverage obtained August 13, 2010 in boxes 09 to 23 w/ the bulk data coverage collected before and after. It would have resulted in change-induced artifacts (e.g. double beach berms) in the data products. Where possible, bathymetric (green laser) data was used to fill gaps resulting from exclusion of the August 13, 2010 data. However, there still remains an approximately 2 km long data gap in 2010_NCMP_NY Box 11. Data obtained on the 13th was delivered as products in the project 2010_NCMP_NY_A, which is available by request from the NOAA Coastal Services Center.
|Purpose:||These data were collected as a part of the NCMP to depict the elevations above the water in the New York coastal zone.|
|Time Period:||2010-08-19 to 2010-08-27|
|Spatial Reference System:||urn:ogc:def:crs:EPSG::4269 Ellipsoid in Meters|
|Spatial Bounding Box Coordinates:||
|Spatial Coverage Map:|
|Use Constraints||No constraint information available|
|Fees||Fee information not available.|
Last Modified: 2013-01-22
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