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2000 Cayuga County New York Lidar

These data were collected in April of 2000 for the Cayuga County New York Department of Planning and Economic Development. Elevation points were sampled at densities necessary to support the generation of contours that meet or exceed United States National Map Accuracy Standards applicable to the map scales that County tax maps are published and for the following intervals of contour lines to be depicted: four feet for the entire county, two feet for the City of Auburn and adjacent area and two feet for six floodplain areas. This is a bare earth data set, the points, however, are classified as "Never Classified". There are points returned from water surfaces. Point spacing is approximately 5 m. Also, there are areas in the county where the data have been regularized, i.e. gridded points.

Cite this dataset when used as a source.

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    Distribution Formats
    • LAZ
    Distributor DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
    Point of Contact Nick Colas
    Cayuga County Department of Planning and Economic Development
    315-253-1276
    planning@co.cayuga.ny.us
    Documentation links not available.
    Originator
    • Cayuga County New York Department of Planning and Economic Development
    Publisher
    • DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
    Date(s)
    • publication: 2000-01-01
    Data Presentation Form: Digital image
    Dataset Progress Status Complete
    Data Update Frequency: As needed
    Purpose: To support the preparation of contour maps and to provide digital data for GIS-based topographic analyses.
    Use Limitations
    • These data depict the elevations at the time of the survey and are only accurate for that time. Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Any conclusions drawn from analysis of this information are not the responsibility of NOAA or any of its partners. These data are NOT to be used for navigational purposes.
    Time Period: 2000-04-01  to  2000-04-01
    Spatial Reference System: urn:ogc:def:crs:EPSG::4269 Ellipsoid in Meters
    Spatial Bounding Box Coordinates:
    N: 43.417704
    S: 42.611301
    E: -76.261512
    W: -76.738775
    Spatial Coverage Map:
    Themes
    • Bathymetry/Topography
    • LiDAR
    • Terrain
    • Model
    • Elevation
    • Surface
    • Laser
    Places
    • US
    • New York
    • Cayuga County
    • Lake Ontario
    Use Constraints No constraint information available
    Fees Fee information not available.
    Lineage Statement Lineage statement not available.
    Processor
    • DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Processing Steps
    • The LiDAR data were collected in April 2000 for Cayuga County Department of Planning and Economic Development by EagleScan/3Di LLC For the City of Auburn and adjacent areas, the data was acquired at an altitude of 1000m (3000 ft) Above Ground Level (AGL). For the remaining area of the county, the altitude was 2000m (6000 ft) AGL.
    • The NOAA Coastal Services Center (CSC) received the files in ESRI shapefile format. The data were in New York State Plane coordinates, Central Zone, NAD 83, NAVD88 vertical datum and the vertical units of measure were feet. CSC performed the following processing to the data to make it available within Digital Coast: 1. The data were converted from ESRI Shapefile format to las format using LASEdit. 2. The data were converted from New York State Plane Central coordinates to geographic coordinates. 3. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid99. 4. The vertical unit of measure for the data was converted from feet to meters. 5. The LAS data were sorted by latitude and the headers were updated. 6. The data were filtered to remove outliers.
    • The NOAA National Geophysical Data Center (NGDC) received lidar data files via ftp transfer from the NOAA Coastal Services Center. The data are currently being served via NOAA CSC Digital Coast at http://www.csc.noaa.gov/digitalcoast/. The data can be used to re-populate the system. The data are archived in LAS or LAZ format. The LAS format is an industry standard for LiDAR data developed by the American Society of Photogrammetry and Remote Sensing (ASPRS); LAZ is a loseless compressed version of LAS developed by Martin Isenburg (http://www.laszip.org/). The data are exclusively in geographic coordinates (either NAD83 or ITRF94). The data are referenced vertically to the ellipsoid (either GRS80 or ITRF94), allowing for the ability to apply the most up to date geoid model when transforming to orthometric heights.

    Metadata Last Modified: 2013-05-07

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