Solar activity and nitrate deposition in South Pole snow

Details Solar activity and nitrate deposition in South Pole snow Solar activity and nitrate deposition in South Pole snow

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9.1195l&link_type=abstract

Geophysical Research Letters, vol. 9, Oct. 1982, p. 1195-1198.

Physics

19

Antarctic Regions, Atmospheric Chemistry, Nitrates, Snow Cover, Solar Activity Effects, Solar Terrestrial Interactions, Climatology, Deposition, Geomagnetism, Nitrogen Oxides, Sunspots

Scientific paper

Recent studies have demonstrated that nitrate ion accumulation in Antarctic firn and ice cores varies with the long-term record of solar activity. In particular, nitrate concentrations in smoothed, time equivalent portions of cores from the South Pole and Vostok Stations extending back over 1200 years appear to show the major features of the curve of carbon-14 production derived from tree rings. The present investigation is concerned with a comparison of available solar and geomagnetic data with recent nitrate deposition in polar snow. Both firn core data and shorter-term, higher-resolution snow pit records are found to indicate that solar processes influence nitrate accumulation at the South Pole. Atmospheric NO(x) production, the precursor of NO3(-), is determined by a number of factors which can be related to the solar cycle.

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