Lidar Point Cloud - USGS National Map 3DEP Downloadable Data Collection

Metadata Updated: August 25, 2017

This data collection consists of Lidar Point Cloud (LPC) projects as provided to the USGS. These point cloud files contain all the original lidar points collected, with the original spatial reference and units preserved. These data may have been used as the source of updates to the National Elevation Dataset (NED), which serves as the elevation layer of the National Map. Lidar (Light detection and ranging) discrete-return point cloud data are available in the American Society for Photogrammetry and Remote Sensing (ASPRS) LAS format. The LAS format is a standardized binary format for storing 3-dimensional point cloud data and point attributes along with header information and variable length records specific to the data. Millions of data points are stored as a 3-dimensional data cloud as a series of geo-referenced x, y coordiniates and z (elevation), as well as other attributes for each point. A few older projects in this collection are in ASCII format. Please refer to http://www.asprs.org/Committee-General/LASer-LAS-File-Format-Exchange-Activities.html for additional information on the .LAS file format.

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Dates

Metadata Date December 7, 2016
Metadata Created Date September 18, 2014
Metadata Updated Date August 25, 2017
Reference Date(s) January 1, 2016 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from USGS Lidar Point Cloud LAS Harvest Source

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Thumbnail JPG image

Additional Metadata

Resource Type Dataset
Metadata Date December 7, 2016
Metadata Created Date September 18, 2014
Metadata Updated Date August 25, 2017
Reference Date(s) January 1, 2016 (publication)
Responsible Party U.S. Geological Survey (Point of Contact)
Contact Email
Access Constraints Use Constraints: There is no guarantee or warranty concerning the accuracy of the data. Users should be aware that temporal changes may have occurred since these data were collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Any user who modifies the data is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data, nor to imply that changes made were approved or endorsed by the USGS. Please refer to https://www.usgs.gov/privacy.html for the USGS disclaimer., Access Constraints: None. Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the USGS Standard Disclaimer. Ensure all portions of metadata are read and clearly understood before using these data in order to protect both user and USGS interests.
Bbox East Long -60
Bbox North Lat 72
Bbox South Lat 13
Bbox West Long -180
Collection Metadata true
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Thumbnail JPG image
Graphic Preview File https://thor-f5.er.usgs.gov/ngtoc/metadata/waf/collections/ned_opr_col_thumbnail.jpg
Graphic Preview Type JPEG
Guid
Harvest Object Id b6b87fa4-a707-4067-9bf0-e0f290fd0cf4
Harvest Source Id a2562cf8-3758-4dfd-bd42-746fc62be645
Harvest Source Title USGS Lidar Point Cloud LAS Harvest Source
Licence Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied, is made by either regarding the utility of the data on any system, nor shall the act of distribution constitute any such warranty. The USGS will warranty the delivery of this product in computer-readable format and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustments of credit must be made within 90 days from the date of this shipment from the ordering site.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2004-01-01

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