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This study presents a detailed stratigraphic analysis of snow accumulation at a site located 300 m southeast of FTX, following significant snowfall on February 3rd and prevailing hard winds. We discuss the implications of depth hoar formation and irradiance spectra on atmospheric chemistry, specifically focusing on the persistence of acetone in the gas phase. Additionally, we provide insights into the total gaseous mercury levels recorded in 1995 at Alert, Canada, contributing to our understanding of long-lived pollutants and their effects on environmental systems.
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Figure 1. Stratigraphy of site A, 300 m SE of FTX 7 february snowfall 3 february snowfall hard wind blown snow 25 cm Depth hoar ground F. Domine, LGGE
Irradiance spectra W. Simpson, UAF
Acetone is too long lived for gas phase chemistry, even involving Cl, to have an impact on its conc., on these time scales. A. Grannas, Purdue U
Figure 2. C. Guimbaud, Purdue U
Total gaseous mercury during 1995 at Alert, Canada 9 April – 29 May, 1995 From: Schroeder et al., Nature 394: 331-332, 1998