• 2011 U.S. Army Corps of Engineers (USACE) Topographic LiDAR: Alabama, Mississippi and Louisiana

    Updated: Dec 31, 2013

    These files contain classified topographic and bathymetric lidar data as unclassified valid topographic data (1), valid topographic data classified as ground (2), Invalid topographic data classified as lowpoints (7), valid topographic data acquired with the bathymetric sensor (14), invalid topographic and bathymetric data (17). Classes 1 and 2 are defined in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards, while classes 14 and 17 are classes specific to NOAA CSC. These data were collected by the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system along the coast of Mississippi. 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 format of the file is LAS version 1.2. Data for Louisiana was collected on May 31st, 2011. Data for Alabama was collected from June 2nd, 2011 to June 4th, 2011. Data for Mississippi was collected from June 1st, 2011 to June 3rd, 2011.

    Data and Resources

    Metadata Source

    Harvested from NCDDC-NOS-CSC

    About this Dataset

    Resource Type Dataset
    Metadata Date Dec 24, 2013
    Metadata Created Date Dec 31, 2013
    Metadata Updated Date Dec 31, 2013
    Reference Date(s) Dec 01, 2013 (publication)
    Responsible Party NOAA Coastal Services Center (Point of Contact)
    Contact Email
    Access Constraints Use Constraints: 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.These data depict the heights at the time of the survey and are only accurate for that time. Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products., Access Constraints: None
    Bbox East Long -88.074195
    Bbox North Lat 30.282304
    Bbox South Lat 29.760477
    Bbox West Long -89.151305
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description This graphic shows the lidar coverage for barrier islands along the coasts of Alabama, Mississippi and Louisiana.
    Graphic Preview File ftp://csc.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/2610/supplemental/se2011_ncmp_almsla.KMZ
    Graphic Preview Type kmz
    Harvest Object Id ed665602-f93c-4c94-9bae-6ced254e03f1
    Harvest Source Id 108fdd59-5081-4392-989d-809f0bb74b7d
    Harvest Source Title NCDDC-NOS-CSC
    Licence Any conclusions drawn from the analysis of this information are not the responsibility of JALBTCX, USACE, NOAA, the Coastal Services Center or its partners.
    Metadata Language
    Metadata Type geospatial
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2011-05-31
    Temporal Extent End 2011-06-04

    Didn't find what you're looking for? Suggest a dataset here.