Cristiano M Chiessi et al 2010 IOP Conf. Ser.: Earth Environ. Sci. 9 012007 doi:10.1088/1755-1315/9/1/012007
Cristiano M Chiessi1,2, Stefan Mulitza1, Jürgen Pätzold1 and Gerold Wefer1
Show affiliationsDetrending natural and anthropogenic components of climate variability is arguably an issue of utmost importance to society. To accomplish this issue, one must rely on a comprehensive understanding of the natural variability of the climate system on a regional level. Here we explore how different proxies (e.g., stalagmite oxygen isotopic composition, pollen percentages, bulk sediment elemental ratios) record Holocene precipitation variability over southeastern South America. We found a general good agreement between the different records both on orbital and centennial time-scales. Dry mid Holocene, and wet late Holocene, Younger Dryas and a period between ~9.4 and 8.12 cal kyr BP seem to be pervasive features. Moreover, we show that proxy-specific sensitivity can greatly improve past precipitation reconstructions.
92.60.Jq Water in the atmosphere (humidity, clouds, evaporation, precipitation)
Issue 1 (2010)
Cristiano M Chiessi et al 2010 IOP Conf. Ser.: Earth Environ. Sci. 9 012007