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Proceedings Paper

Comparison of a marine aerosol model predictions with extinction and size distribution measurements
Author(s): Daniel L. Hutt; Denis Dion; Jean Gilbert
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Paper Abstract

We compare measurements of marine aerosol size distributions and measurements of visible and infrared aerosol extinction coefficient to predictions made with a marine aerosol model. The measurements were made in the North sea near the Dutch coast in 1993 during the MAPTIP trial and in the Mediterranean near Crete in 1996 during the LAPTEX trial. Measurements ofaerosol size distributions were made with aerosol spectrometers and extinction was measured at wavelengths of O.55, 3.8 and 10.6 im with forward scatter sensors. The model calculates vertical profiles of aerosol size distributions and infrared extinction coefficients in the marine boundary layer. The size distributions are represented as the sum of four log-normal distributions having amplitudes that depend on local meteorological conditions. The model uses a set of aerosol types distinguished by different mode radii that are representative of different ocean regions. Results show that the model performs reasonably well compared to the measurements.

Paper Details

Date Published: 23 September 1997
PDF: 10 pages
Proc. SPIE 3125, Propagation and Imaging through the Atmosphere, (23 September 1997); doi: 10.1117/12.283894
Show Author Affiliations
Daniel L. Hutt, Defence Research Establishment Valcartier (Canada)
Denis Dion, Defence Research Establishment Valcartier (Canada)
Jean Gilbert, Groupe Informission Inc. (Canada)


Published in SPIE Proceedings Vol. 3125:
Propagation and Imaging through the Atmosphere
Luc R. Bissonnette; Christopher Dainty, Editor(s)

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