Black carbon concentration in Byrd Station ice core - From 13,000 to 700 years before present

Details Black carbon concentration in Byrd Station ice core - From 13,000 to 700 years before present Black carbon concentration in Byrd Station ice core - From 13,000 to 700 years before present

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992angeo..10..625c&link_type=abstract

Annales Geophysicae (ISSN 0992-7689), vol. 10, no. 8, Aug. 1992, p. 625-629.

Physics

6

Antarctic Regions, Biomass, Carbon, Climate Change, Ice Environments, Air Land Interactions, Carbon Dioxide, Methane, Oxygen 18

Scientific paper

The concentration of black carbon in 22 ice core samples from Byrd Station (West Antarctica) covering the time period from about 13,000 to 700 years before present has been determined. For the first time, black carbon concentrations were obtained in an ice core which included a part of the last climatic transition. An average black carbon concentration of 0.1 micrograms/kg during the Wisconsin-Holocene climatic transition. After the transition the black carbon concentration in the ice core oscillated between 0.1 and 0.95 micrograms/kg, with an average concentration of 0.5 micrograms/kg. The increase in black carbon concentration occurred several hundred years after changes in delta-O-18, CO2 and CH4 characterizing the end of the last (Wisconsin) ice age. Expansion of the land biomass during the early Holocene was responsible for the observed increase of black carbon concentration in the Byrd Station ice core.

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