Aerosol size distribution derived from 355-nm and 532-nm Mie lidar signals

Authors

Edgar A. Vallar, De La Salle University, Manila
Mannelyn Dela Cruz Bagtasa, De La Salle University, Manila
Gerry Bagtasa, De La Salle University, Manila
Ernest P. Macalalad, De La Salle University, Manila
Eric B. Bangsal, De La Salle University, Manila
Maria Cecilia D. Galvez, De La Salle University, Manila

College

College of Science

Department/Unit

Physics

Document Type

Conference Proceeding

Source Title

23rd international Laser Radar Conference

First Page

751

Last Page

752

Publication Date

7-2006

Abstract

A Lookup Table (LUT) was generated using eleven aerosol size distributions (ASD) (from urban to maritime with 9 logarithmic increments in between them). In the computations, aerosol size ranged from 0.001-10μm with 1.40 to 1.60 real and 0.000-0.030 imaginary refractive indices for the 355-nm and 532-nm LIDAR wavelengths. The extinction coefficients (õ)EXPT were calculated for the LIDAR data using Fernald’s inversion method. The ASD in the De La Salle University area was determined by comparing (õ532/õ355)EXPT to (õ532/õ355)THEO values found in the LUT. Results show that the ASD is affected by local meteorological conditions and by man’s activities (e.g., fireworks during New Year’s eve).

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Recommended Citation

Vallar, E. A., Bagtasa, M. D., Bagtasa, G., Macalalad, E. P., Bangsal, E. B., & Galvez, M. D. (2006). Aerosol size distribution derived from 355-nm and 532-nm Mie lidar signals. 23rd international Laser Radar Conference, 751-752. Retrieved from https://animorepository.dlsu.edu.ph/faculty_research/11230

Disciplines

Physics

Keywords

Atmospheric aerosols—Measurement

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