EAARL Coastal Topography--Pearl River Delta 2008: First Surface

Metadata Updated: November 12, 2020

A first surface elevation map (also known as a Digital Elevation Model, or DEM) of the Pearl River Delta in Louisiana and Mississippi was produced from remotely sensed, geographically referenced elevation measurements cooperatively by the U.S. Geological Survey (USGS), the University of New Orleans (UNO), and the National Aeronautics and Space Administration (NASA). Elevation measurements were collected over the area using the NASA Experimental Advanced Airborne Research Lidar (EAARL), a pulsed-laser ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography. The system uses high-frequency laser beams directed at the Earth's surface through an opening in the bottom of the aircraft's fuselage. The laser system records the time difference between emission of the laser beam and the reception of the reflected laser signal in the aircraft. The plane travels over the target area at approximately 50 meters per second at an elevation of approximately 300 meters. The EAARL, developed by NASA at Wallops Flight Facility in Virginia, measures ground elevation with a vertical resolution of 15 centimeters. A sampling rate of 3 kilohertz or higher results in an extremely dense spatial elevation dataset. Over 100 kilometers of coastline can be easily surveyed within a 3- to 4-hour mission. When subsequent elevation maps for an area are analyzed, they provide resource managers with a useful tool regarding land development. For more information on Lidar science and the Experimental Advanced Airborne Research Lidar (EAARL) system and surveys, see http://ngom.usgs.gov/dsp/overview/index.php and http://ngom.usgs.gov/dsp/tech/eaarl/index.php .

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date April 17, 2018
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) January 1, 2009 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from DOI Open Data

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EAARL Coastal Topography–Pearl River Delta 2008: First Surface

Additional Metadata

Resource Type Dataset
Metadata Date April 17, 2018
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) January 1, 2009 (publication)
Responsible Party Jacobs Technology, U.S. Geological Survey, FISC, St. Petersburg, FL (Point of Contact)
Contact Email
Guid
Access Constraints Use Constraints: The U.S. Geological Survey, University of New Orleans, and National Aeronautics and Space Administration request to be acknowledged as originators of this dataset in future products or derivative research., Access Constraints: None
Bbox East Long -89.4
Bbox North Lat 30.266667
Bbox South Lat 30.03333
Bbox West Long -89.85
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description EAARL Coastal Topography–Pearl River Delta 2008: First Surface
Graphic Preview File http://pubs.usgs.gov/ds/417/html/images/Pearl_River.jpg
Graphic Preview Type JPG
Licence This DVD publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herin to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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