EOL Seminar: New methods to Invert Backscatter and Extinction from Photon-Limited Lidar Observations

Date: 
Tuesday, June 6, 2017 - 15:30 to 16:45
Location: 
FL2-1022 Large Auditorium
Contact Name: 
Holger Voemel
Contact Email: 
Contact Phone: 
8837

New methods to Invert Backscatter and Extinction from Photon-Limited Lidar Observations
Willem Marais, PhD ECE graduate student at the University of Wisconsin-Madison

Atmospheric lidar observations provide a unique capability to directly observe the vertical column of cloud and aerosol
scattering properties. Detector and solar-background noise, however, hinder the ability of lidar systems to
provide reliable backscatter and extinction cross-section estimates. In my talk, I will describe novel methods that have been developed for solving lidar inverse problems with high- resolution, lower signal-to-noise ratio observations that are effective in non- uniform scenes. In comparison, standard methods for solving atmospheric lidar inverse problem are
most effective with high signal-to-noise ratio observations that are only available at low resolution in uniform
scenes. I will present recent inverted backscatter and extinction cross-section results of the new method, estimated from observations of the UW-Madison HSRL, and I will juxtapose the results against the estimates obtained via the standard inversion method.

Webcast at: http://www.fin.ucar.edu/it/mms/fl-live.htm

Tuesday, 06 June, 3:30 PM
NCAR-Foothills Laboratory
3450 Mitchell Lane
Bldg 2 Large Auditorium (Rm1022)