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Measurements of UV irradiance were collected near Davis Station (68.58o S, 77.97o E), East Antarctica during November/December 1997 in order to examine the effect of inhomogeneous surface albedo on UV irradiance. Measurements were taken in transects perpendicular to an ice/water boundary…
Recent time-series measurements of atmospheric O2 show that the land biosphere and world oceans annually sequestered 1.4 ± 0.8 and 2.0 ± 0.6 gigatons of carbon, respectively between mid-1991 and mid-1997. The rapid storage of carbon by the Land biosphere from 1991 to 1997 contrasts with the 1980s…
Slant column amounts of NO2 have been measured at twilight at MacQuarie Island using differential absorption spectroscopy. The data show a large seasonal cycle and diurnal variations. These changes are dominated by photochemistry.