Ice Core Records of Atmospheric CO 2 Around the Last Three Glacial Terminations

Autor:	B. L. Deck, Martin Wahlen, Jesse Smith, Hubertus Fischer, Derek Mastroianni
Rok vydání:	1999
Předmět:	geography Multidisciplinary geography.geographical_feature_category Meteorology Antarctic sea ice Atmospheric sciences Arctic ice pack Ice-sheet model Ice core Ice age Cryosphere Environmental science Glacial period Ice sheet
Zdroj:	Science. 283:1712-1714
ISSN:	1095-9203 0036-8075
DOI:	10.1126/science.283.5408.1712
Popis:	Air trapped in bubbles in polar ice cores constitutes an archive for the reconstruction of the global carbon cycle and the relation between greenhouse gases and climate in the past. High-resolution records from Antarctic ice cores show that carbon dioxide concentrations increased by 80 to 100 parts per million by volume 600 ± 400 years after the warming of the last three deglaciations. Despite strongly decreasing temperatures, high carbon dioxide concentrations can be sustained for thousands of years during glaciations; the size of this phase lag is probably connected to the duration of the preceding warm period, which controls the change in land ice coverage and the buildup of the terrestrial biosphere.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8916741f0f0a59ec93b520491b222ae1 https://doi.org/10.1126/science.283.5408.1712 Zobrazit plný text záznamu Plný text ve formátu PDF