Analysis of Measurement Data on Carbon Dioxide Concentration in the Near-ice Surface Atmosphere at North Pole-35 Drifting Ice Station (2007-2008)

摘要

Significant CO_2 concentration disturbances with an amplitude of 150 ppm are observed in October-November in the region of North Pole-35 drifting ice station over the continental slope of the Arctic Ocean. A local maximum of the CO_2 concentration disturbances is observed in April; it is connected with a change in the regime of the sea ice deformation at that time of the year in the western Arctic basin. Changes in the CO_2 concentration have oscillations at the frequency of oceanic tides. Several episodes of the initial phase of CO_2 release into the near-ice surface atmosphere in October 2007 are recorded. The CO_2 amount released into the atmosphere as a result of ice formation in the Arctic Ocean is a significant quantity in the total balance of the CO_2 release on the global scale and accounts for approximately 30% of the anthropogenic release of CO_2 per year.