TITLE: Aerosol properties of the Grimsvötn ash derived from sun photometer over Timisoara, Romania
KEYWORDS: volcanic ash, aerosol, sun photometer, AOD, Angstrom parameter, Angstrom turbidity
ABSTRACT: The study is done in the end of May 2011, when Grímsvötn volcano erupted in Iceland. This paper gives the aerosol columnar properties above Timisoara, Romania. The sun photometer observations: aerosol optical depth (AOD), Angstrom coefficients, fine and coarse mode concentration and size distribution allow identifying the volcanic aerosols. The single scattering albedo was between 0.75 and 0.85 at 440 nm. Fine mod aerosol optical depth is between 0.16 – 0.60, with a spherical particles (10 – 95 %).
