2011 NOAA National Geodetic Survey (NGS) LIDAR of North Carolina: Hurricane Irene Emergency Response Mapping Product

These data were collected by the National Oceanic Atmospheric Administration National Geodetic Survey Remote Sensing Division using

a Riegl Q680i-D system. The data were collected August 28 and 29, 2011 after landfall of Hurricane Irene in Dare and Carteret counties

in North Carolina. The data includes topographic data in an LAS 1.2 format file classified as unclassified (1), ground (2),

and water (9) in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards.

This data set also includes lidar intensity values and encoded RGB image values.

Original contact information:

Contact Org:

National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Geodetic Survey (NGS),

Remote Sensing Division

Title: Chief, Remote Sensing Division

Phone: 301-713-2663

This lidar was acquired by the NOAA Remote Sensing Division to support NOAA's Emergency Response Program. It is not intended for mapping,

charting, or navigation. In addition, it will be used for ongoing research efforts for testing and developing standards for airborne lidar.

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Data include all lidar returns. Outliers or false returns (e.g., returns from birds, atmospheric particles, and/or system noise) may be

present in the data. An automated ground classification algorithm was used to determine bare earth point classification. It should be noted

that not all water returns were correctly classified; therefore the ground classification could proceed into water bodies, and should be

removed by the user.

Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the National

Geodetic Survey, the Office for Coastal Management, or its partners.

This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer;

None

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this data may no longer represent actual surface conditions.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.

OS Independent

The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than plus or minus 1.0 m.; Quantitative Value: 1.0 meters, Test that produced the value: 2 Sigma

The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than plus or minus 0.30 m.; Quantitative Value: 0.30 meters, Test that produced the value: 2 Sigma

Not applicable

Not applicable