Application of Brewer data to obtain information about the Pinatubo aerosol over Greenland

Morten Wagner; Thorvald Pedersen; Niels Wessel Larsen; Paul Eriksen

doi:10.1117/12.163496

2 November 1993 Application of Brewer data to obtain information about the Pinatubo aerosol over Greenland

Morten Wagner, Thorvald Pedersen, Niels Wessel Larsen, Paul Eriksen

Proceedings Volume 2047, Atmospheric Ozone; (1993) https://doi.org/10.1117/12.163496
Event: High Latitude Optics, 1993, Tromso, Norway

Abstract

The Brewer Instrument in Søndre Strømfjord in Greenland (66.0 °N, 54.0 °W) operated by the Danish Met. Office, has been measuring ozone and UV-radiation since spring 1991 —before the Mt. Pinatubo eruption. Six wavelengths are involved in the ozone measurements: (302.2 nm), 306.3 nm, 310.0 nm, 313.5 nm, 316.8 nm and 320.0 nm 302.2 nm is used for calibration purposes. It occurred to us that the redundant information might be used to obtain information about the aerosol optical depth defined through the relations: I = Ioexp(—trn) t = tqg + tsg + tp I and Io denote solar irradiances at Earth' surface and outside the atmosphere respectively. m denotes total airmass (1/ cos 0 or Chapman Function). tag is optical depth due to absorption in gasses — mainly ozone, but sometimes also SO2. t is the Rayleigh scattering term and t, is the aerosol optical depth, which we aim at determining

Citation Download Citation

Morten Wagner, Thorvald Pedersen, Niels Wessel Larsen, and Paul Eriksen "Application of Brewer data to obtain information about the Pinatubo aerosol over Greenland", Proc. SPIE 2047, Atmospheric Ozone, (2 November 1993); https://doi.org/10.1117/12.163496

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