Preliminary results of aerosols measurements with sun photometer at Camag?ey, Cuba

摘要

Preliminary results from sun photometer CIMEL CE‐318 measurements over Camagüey, Cuba, arereported. The instrument belongs to the Iberian Network for Aerosol Measurements (RIMA). Thedataset, at the 1.5 level of Aerosol Robotic Network (AERONET), covers the period betweenOctober 7th, 2008 and March 29th, 2009. Obtained results, considered as background conditions,allow characterizing the aerosols over Camagüey as Maritime Mixed. Main results showed theaverage value of the aerosol optical thickness: τa(500 nm)=0.11 and its mode value at τam(500nm)=0.11 while for the ?ngstr?m exponent the average was α=0.87 with mode value of αm=0.70.Relatively high values in both parameters for marine aerosols, agree with reported values by otherstudies for maritime environments in the Atlantic ocean. A preliminary characterization aboutaerosol particles size distribution over Camagüey has been conducted. Arrival of Saharan dustlayers to our territory, is evident in several episodes that have taken place during the month of July2009, with an aerosol optical thickness maximum value of τa(500)=0.70 on July 6th.