By Florence Sylvestre (auth.), Francoise Vimeux, Florence Sylvestre, Myriam Khodri (eds.)
This publication teams jointly overviews and unique learn papers facing South American weather variability from the final Glacial greatest to the Holocene. The contributions take care of tropical, temperate and excessive latitudes weather variability in South the US and in surrounding areas (including Pacific and Atlantic Oceans and Antarctica). It deals effects got from either typical weather data and up to date simulations from coupled weather versions. the target is to suggest a cutting-edge approximately our wisdom of previous weather variability in South the USA. particularly, this booklet goals at featuring the entire to be had observations and at discussing weather mechanisms, in particular the low to excessive range teleconnections on that continent which spreads out from the equator to Patagonia. it truly is written by means of a professional workforce of weather swap scientists, and offers an perception into dynamics of the previous and offers weather modellers with paintings of reference for data-model comparability. The publication is a sophisticated yet very readable textual content crucial for all scholars and scientists attracted to international environmental change.
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Extra info for Past Climate Variability in South America and Surrounding Regions: From the Last Glacial Maximum to the Holocene
3). This is indicated by significant perturbations in the dripwater composition that occur approximately one month after periods of heavy rainfall at the Santana cave site (Cruz et al. 2005b). These δ18 O variations are possibly linked to more enriched rain waters from winter and early spring that are stored in soils and epikarst and later washed down at the peak of the summer rainy season. 0 0 100 200 300 400 500 600 700 800 Date (days after 03/01/2000) Fig. 3 Top: Daily and Monthly rainfall amount.
Furthermore the high–low latitude phase-relationship and the exact timing of abrupt climate events in the southern hemisphere need to be assessed. Finally, it is also essential to document the relative geographic importance of the various forcings, as both summer insolation and millennial-scale events are thought to impact moisture transport and precipitation over the Amazon Basin 2 Long-Term Changes in Precipitation in Brazil from Speleothem Records 31 and the tropical Andes (Seltzer et al. 2000; Baker et al.
2003a). Much of the spatial variability of this slope can be attributed to the different geographic locations, with high-elevation inland locations having much steeper slopes, while slopes at coastal lowland stations are weak. This dependence of δ18 O on the precipitation amount has been exploited to use 18 δ O from meteoric waters to study interannual climate variability over the South American domain, including the influence of El Niño-Southern Oscillation (ENSO) and the South American Summer Monsoon (SASM).