Aerosol size distribution derived from 2010 New Year’s spectrometric data in Manila Observatory, Philippines

Rafael Chu1*, Nofel Lagrosas1,2, “Aerosol size distribution derived from 2010 New Year’s spectrometric data in Manila Observatory, Philippines,” SPP 2011-174.

A parametric approach was used to compute the volume size distribution from aerosol optical depth values measurements during the 2010 New Year celebration. A fine mode (<0.1 um) was observed after midnight, corresponding to the onset of the firework activity. The appearance of a coarser mode (>0.1 um) at around 3am is attributed to high relative humidity values and low difference between ambient and dew point temperatures, both facilitating condensation and thus an increase in particulate radius.

(national conference)