Optical extinction from Raman lidar measurements

Michael D. O'Brien; Tim D. Stevens; Franz Balsiger; C. Russell Philbrick

doi:10.1117/12.258885

21 November 1996 Optical extinction from Raman lidar measurements

Michael D. O'Brien, Tim D. Stevens, Franz Balsiger, C. Russell Philbrick

Author Affiliations +

Proceedings Volume 2832, Optical Instruments for Weather Forecasting; (1996) https://doi.org/10.1117/12.258885
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Lidar can be an effective tool for measuring the optical extinction along atmospheric paths. The Penn State University LAMP lidar recently participated in a series of atmospheric measurements at NASA's Wallops Island test facility in September 1995. The LAMP lidar was operated with the beam pointed along horizontal and vertical paths. This paper discusses the determination of atmospheric extinction coefficients with Raman lidar measurements. Lidar measurements show the presence of aerosol layers in the atmosphere as a marked departure from the expected molecular profile for a Raman lidar signal. The horizontal extinction coefficient can be determined directly from the range corrected slope of a horizontal Raman profile. The vertical extinction coefficient can be determined directly from the range corrected slope of a horizontal Raman profile. The vertical extinction coefficient can be determined by comparing the gradient of the Raman lidar profile with the gradient of the molecular atmosphere. The LAMP lidar has also been used with a bistatic receiver to measure the scattering phase function which can then be used to calculate the aerosol particle size distribution and the optical extinction coefficient. This paper will discuss the experimental method and present several representative examples from Raman lidar measurements. The extinction coefficients determined form the Raman lidar data will then be compared with the extinction coefficients determined from the bistatic receiver data.

Citation Download Citation

Michael D. O'Brien, Tim D. Stevens, Franz Balsiger, and C. Russell Philbrick "Optical extinction from Raman lidar measurements", Proc. SPIE 2832, Optical Instruments for Weather Forecasting, (21 November 1996); https://doi.org/10.1117/12.258885

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE