LUT-based aerosol size distribution from wavelet de-noised 355-nm and 532-nm Mie LIDAR signals

Authors

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

Abstract

Eleven Aerosol Size Distributions (ASD) (from Urban to Maritime with 9 logarithmic increments in between them) was simulated in this study to generate a Lookup Table (LUT). In the simulations, 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 (σ) were calculated using Fernald’s inversion method on the LIDAR data denoised using the Haar wavelet. The ASD in the De La Salle University area was determined by comparing (σ₅₃₂/σ₃₅₅)_EXPT to (σ₅₃₂/σ₃₅₅)_THEO values found in the LUT. The ASD of the data analyzed falls on the two extreme ASD models considered. Results have also shown that the ASD, and consequently the type of aerosols interacting with the LIDAR, is affected by the local meteorological conditions and man’s activities (e.g., fireworks during New Year's eve).

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Issue

2005: Proceedings of the 23rd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2005-PB-56

Section

Poster Session PB

Published

2005-10-26

How to Cite

[1]

MJ Dela Cruz, G Bagtasa, EA Vallar, EP Macalalad, EB Bangsal, and MCD Galvez, LUT-based aerosol size distribution from wavelet de-noised 355-nm and 532-nm Mie LIDAR signals, Proceedings of the Samahang Pisika ng Pilipinas 23, SPP-2005-PB-56 (2005). URL: https://proceedings.spp-online.org/article/view/SPP-2005-PB-56.