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Topographic Lidar Survey of the Chandeleur Islands, Louisiana, February 6, 2012 -- Bare Earth DEMs
Entry ID: USGS_DS-840_DEM

Abstract: A topographic Lidar survey was conducted on February 6, 2012, over the Chandeleur Islands, Louisiana. The data were collected at a nominal pulse space of 0.5-meter (m) and processed to identify bare earth elevations. Bare earth digital elevation models (DEMs) were generated based on these data. Digital Aerial Solutions, LLC, was contracted by the U.S. Geological Survey (USGS) to collect and ... View entire text

Purpose: This lidar survey was acquired to document the short- and long-term changes of several different barrier island systems. Specifically, this survey supports detailed studies of the Chandeleur Islands that resolve annual changes in beaches, berms and dunes associated with processes driven by storms, sea-level rise, and human restoration activities.


Lidar ... View entire text
Geographic Coverage
Spatial coordinates   
  N: 30.5   S: 29.19   E: -87.9   W: -89.49

Data Set Citation
Dataset Originator/Creator: Guy, Kristy K.; Plant, Nathaniel G.; Bonisteel-Cormier, Jamie M.
Dataset Title: Topographic Lidar Survey of the Chandeleur Islands, Louisiana, February 6, 2012 -- Bare Earth DEMs
Dataset Release Date: 2014-01-01T00:00:00.000Z
Dataset Release Place: Reston, VA
Dataset Publisher: U.S. Geological Survey
Version: Not provided
Issue Identification: DS-840
Online Resource:
Parent DIF
This description is a member of a collection. The collection is described in

Temporal Coverage
Start Date: 2012-02-06
Stop Date: 2012-02-06
Quality Logical_Consistency_Report: Bare-earth processed data for this acquisition block comply with the following accuracy requirements for Artifact/Feature removal: artifacts - 90 percent; outliers - 95 percent; vegetation - 95 percent; buildings - 98 percent. All LAS formatted Lidar data are validated using commercial GIS software to ensure proper formatting and loading before delivery. This ... View entire text
Access Constraints No restrictions apply to these data.
Use Constraints None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.
Data Set Progress
Data Center
Digital Data Series, Publications Warehouse, Eastern Region, Publications, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 1-888-275-8747
Email: ask at
Contact Address:
U.S. Geological Survey
12201 Sunrise Valley Drive
City: Reston
Province or State: Virginia
Postal Code: 20192
Country: USA
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Phone: 727-803-8747
Fax: 727-803-2031
Email: nplant at
Contact Address:
600 Fourth Street South
City: St. Petersburg
Province or State: Florida
Postal Code: 33701
Country: USA
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2014-06-05
Last DIF Revision Date: 2018-07-02