CV Lattes
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Universidade de São Paulo (USP). Escola de Artes, Ciências e Humanidades (EACH) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Cristiano M. Chiessi holds a BSc (2001) in Geology from the Institute of Geosciences (IGc), University of São Paulo (USP), Brazil, a MSc (2004) in Geosciences (emphasis on Sedimentary Geology) from the IGc USP, and a PhD (2008) in Natural Sciences (emphasis on Paleoceanography and Paleoclimatology) from the University of Bremen, Germany. Between 2008 and 2009, he developed a post-doc research project in the fields of Paleoceanography and Paleoclimatology at the National Institute for Space Research (INPE). He is currently Associate Professor (3) at the School of Arts, Sciences and Humanities (EACH) from USP. Additionally, he is the leader of the the Paleoceanography and Paleoclimatology Laboratory (P2L) from EACH, holds a research productivity scholarship (1C) from the National Council for Scientific and Technological Development (CNPq), and is a member of the Water Resources Working Group da iniciativa Safe Landing Climates do World Climate Research Programme (WCRP). He was a member of the Scientific Steering Committee of the Past Global Changes (PAGES) and of the Science Framework Working Group of the 2050 Scientific Ocean Drilling (International Ocean Discovery Program (IODP)). He was a member of the Science Evaluation Panel of IODP and of the Working Group 1 (Scientific basis of climate change) from the Brazilian Panel on Climate Change (PBMC). He is an expert in Geosciences, with special focus on Paleoceanography, Paleoclimatology and Climate Change, and the main research topics addressed by him are: abrupt climate change, meridional overturning circulation, multidecadal climate variability, South American monsoon system, carbonate and bulk sediment geochemistry, Late Quaternary, South America, and South Atlantic. During his career, he interacted with more than 400 researchers through co-authorships in scientific manuscripts. (Source: Lattes Curriculum)
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Climate change affects life at all levels, from genetic structure of animal and plant populations to socio-economic organization of human communities. For Amazonia, current models project warmer and drier climates, which could make large areas unsuitable for species adapted to moist rainforest conditions and increase the susceptibility of vegetation to wildfires, thereby promoting savanni…
Negative synergies between climate change and deforestation may force the Amazon rainforest to cross a tipping point, resulting in large-scale substitution of rainforest by non-forest ecosystems. However, this possible dieback of the Amazon rainforest remains highly uncertain at least in part due to another similarly uncertain tipping element of the climate system, namely the Atlantic mer…
The Atlantic meridional overturning circulation (AMOC) plays a fundamental role in the oceanography and climate of the Atlantic realm. Atmosphere-ocean general circulation models have predicted a weakening in AMOC strength for the coming decades. Thus, a comprehensive understanding of the response of the western Atlantic Ocean to changes in AMOC on different time scales is a key issue. He…
(Only some records are available in English at this moment)
During the last glacial period, abrupt and cold millennial-scale events in the Northern Hemisphere weakened the Atlantic Meridional Overturning Circulation (AMOC) due to freshwater input from ice melting in regions of North Atlantic Deep Water (NADW) formation. These AMOC changes are commonly reconstructed using stable carbon isotope (¿13C) analyses in epibenthic foraminifera, which indic…
The Atlantic Meridional Overturning Circulation (AMOC) plays a crucial role in global oceanic circulation, influencing heat distribution in the Atlantic Ocean and impacting climate patterns worldwide. Several studies show the intricate relationship between AMOC and precipitation in the Amazon Basin, a vital aspect for the ecological and climatic sustainability of the Amazon Forest. Projec…
The understanding climate variability and extreme weather events in the western South Atlantic over the past 200 years presents numerous knowledge gaps. Important features of the climate system such as the Atlantic Meridional Overturning Circulation (AMOC), the Intertropical Convergence Zone (ITCZ), and the South Atlantic Convergence Zone (SACZ) lack a comprehensive understanding in this …
(Only some records are available in English at this moment)
The Atlantic Meridional Overturning Circulation (AMOC) changes play an important role in the global carbon cycle. During millennial events (referred as Heinrich Stadials) that occurred in the last glacial-interglacial cycle, a reduction in ventilation and an increase in CO2 storage at mid-depths of the Atlantic occurred due to the weakening of the AMOC. These circulation changes, commonly…
Archives like marine sediment cores register environmental conditions through proxies in an indirect way. Thus, the appropriate reconstruction of paleoenvironmental changes rely on understanding the relationship between the aimed original environmental signal and the analyzed proxy. Here we will (i) determine how environmental signals are recorded in modern fluvial sediments, and (ii) ass…
Precipitation is arguably one of the main controlling factors of life on Earth. From foodproduction to water availability, changes in precipitation patterns can lead to social disruption and massive economic loss. Recent findings point to a possible human-driven collapse of the Atlantic Meridional Overturning Circulation. Knowing the effects of such a collapse on precipitation is crucial …
(Only some records are available in English at this moment)
The Amazonian drainage system is responsible for creating highly dynamic landscapes as sediments from several sources are transported to distant sinks, playing a crucial role in shaping the biodiversity of this region. Precipitation changes in the headwaters of Amazonian rivers influence the flow of water and sediments in the drainage basin, that in turn can change the distribution and co…
Precipitation is arguably one of the main controlling factors of life on Earth, changes in its patterns can lead to social disruption and massive economic loss. Recent findings point to a possible human-driven collapse of the Atlantic Meridional Overturning Circulation (AMOC). Knowing the effects of such a collapse is crucial for decision-makers to build an efficient adaptation strategy. …
Terminations (i.e., transitions from glacial to interglacial periods) and interglacial periods are key intervals to understand climate dynamics under increasing and high atmospheric CO2 concentrations, such as Earth's present and future climates. Due to its intrinsic relationship with the Atlantic Meridional Overturning Circulation and its prominent role in controlling energy distribution…
(Only some records are available in English at this moment)
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