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USACE ERDC Topobathy Lidar: Allegheny River, [Pennsylvania] {2020}

United States Army Corps of Engineers USACE · 2020 Full Details

Full Details

Title
USACE ERDC Topobathy Lidar: Allegheny River, [Pennsylvania] {2020}
Description
Area of Interest: Allegheny River, 15 miles, north of Clarion County, in Forest and Warren counties These files contain rasterized topobathy lidar elevations generated from data collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system and topographic lidar elevations generated from data collected using a Teledyne ALTM Galaxy PRIME sensor. CZMIL integrates a lidar sensor with simultaneous topographic and bathymetric capabilities, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. 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 National Adjustment of 2011 (NAD83 (2011). Vertical positions are referenced to the NAD83 (2011) ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID12B 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, which are tiled into 1-km by 1-km boxes defined by the Military Grid Reference System. The LAS file index is provided by the shape files, "MGRS_1km_17T.shp ", and the numbers used to identify files are in the "Box" field of the shape file. The data file naming convention is based on the year, effort, area, "Box" number and data product type. An example file name is "2020_ERDC_PA_17TPF2793_1mGrid.tif", where 2020 is the year of data collection, ERDC is the effort under which data were collected, PA is the area of data collection, 17TPF2793 is the "Box" number and 1mGrid is the data product type
Creator
United States Army Corps of Engineers USACE
Date Issued
2020
Access Rights
Public
Format
File
Language
English
Date Added
December 05, 2023

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Cite and Reference

  • Citation
    United States Army Corps of Engineers USACE (2020). USACE ERDC Topobathy Lidar: Allegheny River, [Pennsylvania] {2020}. . https://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=2419 (dataset)
  • BTAA Geoportal Link

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