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Simulated sensitivity of the tropical climate to extratropical thermal forcing: tropical SSTs and African land surface
(Springer, 2016)
This study investigates the Intertropical Con- vergence Zone (ITCZ) response to extratropical ther- mal forcing applied to an atmospheric general circulation model coupled to slab ocean and land models. We focus on ...
A late Holocene paleoclimate reconstruction from Boqueirão Lake sediments, northeastern Brazil
(Brasil, 2014)
Lake level fluctuations and environmental changes during the late Holocene were inferred from changes in sedimentology, bulk and isotope organic geochemistry, and a diatom based transfer function in a sediment core from ...
Mid- to late-Holocene paleoceanographic changes on the southeastern Brazilian shelf based on grain size records
(SAGE PUBLICATIONS LTD, 2010)
; High-resolution grain size analyses of three AMS (14)C-dated cores from the Southeastern Brazilian shelf provide a detailed record of mid- to late-Holocene environmental changes in the Southwestern Atlantic Margin. The ...
Astronomical forcing of contrasting rainfall changes in tropical South America between 12,400 and 8800 cal yr BP
(1997)
Today, precipitation over tropical South America is largely controlled by the seasonal movements of the Inter-Tropical Convergence Zone (ITCZ). During the summer, the ITCZ is shifted southward due to the warming of the ...
Quantifying changes in spatial patterns of surface air temperature dynamics over several decades
(European Geosciences Union, 2018)
We study daily surface air temperature (SAT) reanalysis in a grid over the Earth’s surface to iden-
tify and quantify changes in SAT dynamics during the period 1979–2016. By analysing the Hilbert amplitude
and frequency ...
Impact of increased horizontal resolution in coupled and atmosphere-only models of the HadGEM1 family upon the climate patterns of South America
(Springer, 2017-05-01)
This study investigates the impact of increased horizontal resolution in coupled and atmosphere-only global climate models on the simulation of climate patterns in South America (SA). We analyze simulations of the HadGEM1 ...
Impacts of interruption of the Agulhas leakage on the tropical Atlantic in coupled ocean-atmosphere simulations
(SPRINGER, 2011)
In this paper we use a coupled ocean-atmosphere model to investigate the impact of the interruption of Agulhas leakage of Indian ocean water on the tropical Atlantic, a region where strong coupled ocean-atmosphere interactions ...
Sedimentary metal ratios in the Colombia Basin as indicators for water balance change in northern South America during the past 400,000 years
(AMER GEOPHYSICAL UNION, 2005-11-15)
Recent paleoclimate reconstructions for northern South America suggest changes in moisture balance interpreted to result from shifts in the mean latitudinal position of the Intertropical Convergence Zone (ITCZ). Because ...
Response of the tropical convergence zones to extratropical thermal forcing
(Udelar.FI., 2016)
Paleoclimatic data, 20th century observations and numerical simulations have all suggested the
capability of the extratropics to trigger global teleconnection patterns and drive changes in the
distant tropical regions ...
Timing and extent of late pleistocene glaciation in the arid central andes of Argentina and Chile (22°-41°s)
(Universidad de La Rioja, 2017-07)
The arid Central Andes are a key site to study changes in intensity and movement of the three main atmospheric circulation systems over South America: the South American Summer Monsoon (SASM), the Westerlies and the El ...