USGS Western Region Geography

Western Region Map
 Our Science 

 Publications 

 Geography  

 Who We Are 

 In The News 

 Web Sites 

 Feedback  




Our Science:  Application Tools

 

Lidar Canopy Maps



Current methods of quantifying biomass for regional studies are often at a coarse scale and ineffective for ecological decision makers attempting to address policy decisions. Lidar data provides a new opportunity to reduce field collection and data interpretation for quantifying vegetation at a scale appropriate for land use managers to improve the health and resilience of regions.

This study will investigate the new technology of Lidar (Light Detection and Ranging) active sensing, for the quantification of vegetation at a high-resolution. Vegetation maps derived from Lidar, of the Puget Sound, will enable local and regional decision-makers to mitigate adverse environmental factors (Nowak, 2001), and improve regional resilience.

Presence of vegetation will be quantified through lidar data through vegetation surface models producing ecoregion vegetation maps.

  1. Structures will be excluded from lidar vegetation surface models through imagery merged with lidar points.
  2. Vegetation surface models will be differenced from bare-Earth surface models to determine percent of vegetation in ecoregion.

Image of a Lidar canopy map Example of a Lidar canopy map


Point of Contact: Vivian R. Queija


 

Accessibility FOIA Privacy Policies and Notices

Take Pride in America home page. USA.gov  logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://geography.wr.usgs.gov/science/lidarMapping.html
Page Contact Information: WRG Web Team
Page Last Modified: Monday, 11-Sep-2006 14:02:16 EDT (mg)