Altitude profile of the effective radius of atmospheric boundary layer aerosols retrieved from simultaneous two-wavelength lidar measurement

Maria Cecelia D. Galvez; Edgar A. Vallar

doi:10.1117/12.417043

13 February 2001 Altitude profile of the effective radius of atmospheric boundary layer aerosols retrieved from simultaneous two-wavelength lidar measurement

Maria Cecelia D. Galvez, Edgar A. Vallar

Author Affiliations +

Proceedings Volume 4153, Lidar Remote Sensing for Industry and Environment Monitoring; (2001) https://doi.org/10.1117/12.417043
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

The altitude profile of the effective radius, reff, of atmospheric boundary layer aerosols was retrieved from simultaneous twowavelength lidar measurement near Manila Bay. The effective radius was retrieved using a simple method that makes use of the angstrom coefficient, ?, obtained from the extinction coefficients at the two wavelengths. The altitude profiles of the extinction coefficients at 532-nm and 1064-nm lidar wavelengths were obtained using Femald's inversion algorithm combined with Klett's boundary value algoritlun. used to obtain the aerosol extinction coefficient at the reference height. Assuming a lognonnal size distribution. with a geometric standard deviation of 1 .54, for atmospheric boundary layer aerosols. and a constant refractive index of 1.45 - Oi, the angstrom coefficient is determined at different mode radius, rg, using Mie Scattering Theory. A curve fitting analysis using the method-of-least-squares is done on the theoretical value of ? to obtain a sixth-order polynomial equation that gives the dependence of ? with rg. The altitude profile of reff is retrieved by using the measured value of ? into the equation. This method was applied to actual lidar experiments and the effective radius of the atmospheric boundary layer aerosols was observed to vary between 0.26 ?m to 0.29 ?m within the layer.

Citation Download Citation

Maria Cecelia D. Galvez and Edgar A. Vallar "Altitude profile of the effective radius of atmospheric boundary layer aerosols retrieved from simultaneous two-wavelength lidar measurement", Proc. SPIE 4153, Lidar Remote Sensing for Industry and Environment Monitoring, (13 February 2001); https://doi.org/10.1117/12.417043

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

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

LIDAR

Aerosols

Atmospheric particles

Refractive index

Mie scattering

Signal attenuation

Roentgenium

Show All Keywords

Keywords/Phrases

Search In:

Publication Years