PP51C:
Assessing Regional Climate Signals from Southern South America: Modern and Paleo Efforts Posters


Submit an Abstract to this Session


Session ID#: 46805

Session Description:
The influence of the Southern Hemisphere Westerly Winds (SWW) on the modern climate of Southern South America [SSA] (south of 30°S) is well known. The SWW, in combination with the N-S orientation of the Andes, are responsible for vegetation gradients with latitude and elevation, which likely varied in the past as a function of the strength and location of the SWW. Models project a poleward shift and intensification of the SWW as a result of global warming, superimposed on natural climate variability that is less well understood in this vast area with sparce meteorological data. Thus, we need to turn to paleoclimate proxy records to gather data on climate variability and help validate future climate projections in the region. This session invites researchers in diverse fields, including proxy development and modeling, to examine modern and past climate in SSA.
Primary Convener:  Sergio Contreras, Universidad Catolica de la Santisima Concepcion, Departamento de Química Ambiental & Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Concepci�n, Chile
Convener:  Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States
Primary Liaison:  Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States
Chairs:  Sergio Contreras, Universidad Católica de la Santísima Concepción, Departamento de Quimica Ambiental, Concepción, Chile and Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States
OSPA Liaison:  Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States
Index Terms:

0458 Limnology [BIOGEOSCIENCES]
0473 Paleoclimatology and paleoceanography [BIOGEOSCIENCES]
1854 Precipitation [HYDROLOGY]
1855 Remote sensing [HYDROLOGY]

Abstracts Submitted to this Session:

Late Quaternary dynamics of the Southern Westerlies over southern South America and link to paleoceanographic changes in the South Pacific (411413)
Frank Lamy1, Helge W Arz2, John C H Chiang3, Rolf Kilian4, Gerhard Kuhn5, Fabrice Lambert6, Carina Lange7, Lester Lembke-Jene8, Ralf Tiedemann9, Marc Wengler1, Gisela Winckler10 and Shuzhuang Wu11, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (2)Leibniz Institute for Baltic Sea Research, Rostock, Germany, (3)Univ California, Berkeley, CA, United States, (4)University of Trier, Trier, Germany, (5)Alfred Wegner Inst, Bremerhaven, Germany, (6)University of Chile, Santiago, Chile, (7)University of Concepcion, Concepcion, Chile, (8)AWI, Bremerhaven, Germany, (9)Alfred-Wegener-Institute, Bremerhaven, Germany, (10)Columbia University, Department of Earth and Environmental Sciences, New York, United States, (11)Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (AWI), Marine Geology, 27568 Bremerhaven, Germany
Hydroclimate variability of northern Patagonia during the last 20 kyr inferred from the bulk organic geochemistry of Lago Castor sediments (Chile, 45°S) (435321)
Sebastien Bertrand1, Géraldine Fiers2, Maarten E Van Daele1, Emma Granon3, Brian Reid4, Willem Vandoorne2 and Marc A O De Batist5, (1)Ghent University, Department of Geology, Gent, Belgium, (2)Ghent University, Gent, Belgium, (3)Lille University of Science and Technology, Lille, France, (4)Centro de Investigación en Ecosistemas de la Patagonia, Coyhaique, Chile, (5)Ghent University, Geology, Gent, Belgium
Abundance, Distribution and Stable Carbon Isotope Composition of Leaf-waxes (n-alkanes) From Surface Lake Sediments Along a Climatological Gradient on the Western Side of the Southern Andes (382409)
Sergio Contreras, Universidad Catolica de la Santisima Concepcion, Departamento de Química Ambiental & Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Concepci�n, Chile, Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States, Alberto Araneda, Universidad de Concepción, Grupo de Estudios Paleolimnológicos (GEP), Facultad de Ciencias Ambientales, Concepción, Chile, Eduardo Tejos, Universidad Catolica de la Santisima Concepcion, Departamento de química ambiental, Concepción, Chile and Julio Moscoso, Ecogestión Ambiental Ltda., Chiguayante, Chile
Hydrogen isotope compositions of plant leaf wax n-alkanoic acids across a latitudinal transect in southern South America (467293)
Wesley Phillip Scott, University of Pittsburgh, Pittsburgh, PA, United States, Sergio Contreras, Universidad Católica de la Santísima Concepción, Departamento de Quimica Ambiental, Concepción, Chile, Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States and Thomas Elliott Arnold, University of Pittsburgh, Geology and Environmental Science, Pittsburgh, PA, United States
Finding the expression of MCA and LIA along a sediment core from northern Patagonia using fatty acids from leaf waxes (459714)
Patricia Jana, Universidad de Concepción, Grupo de Estudios Paleolimnológicos (GEP), Facultad de Ciencias Ambientales, Concepcion, Chile, Alberto Araneda, Universidad de Concepción, Grupo de Estudios Paleolimnológicos (GEP), Facultad de Ciencias Ambientales, Concepción, Chile, Eduardo Tejos, Universidad Catolica de la Santisima Concepcion, Departamento de química ambiental, Concepción, Chile, Nathalie Fagel, University of Liege, Department of Geology, Liege, Belgium and Sergio Contreras, Universidad Católica de la Santísima Concepción, Departamento de Quimica Ambiental, Concepción, Chile
Insolation and Southern Annular Mode-like Climate Variability as Modulator and Pacemaker of Patagonian Glacier Variability During the Holocene (395082)
Scott Reynhout1, Esteban A Sagredo2, Juan C Aravena3, Michael R Kaplan4, Rodrigo León Soteres2, Paola S Araya2, Roseanne Schwartz5, Moreno I Patricio6 and Joerg M Schaefer4, (1)University of Chile, Santiago, Chile, (2)Pontifical Catholic University of Chile, Santiago, Chile, (3)Universidad de Magallanes, Gaia Antártica, Punta Arenas, Chile, (4)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (5)Lamont-Doherty Earth Observatory, Earth and Environmental Sciences, Palisades, NY, United States, (6)Instituto de Ecología y Biodiversidad (IEB), Centro Fondap (CR)2, Nucleo Milenio en Paleoclima Hemisferio Sur., Santiago de Chile, Chile
Archaeological shell middens from the coastal Atacama Desert as regional proxies for Holocene upwelling and environmental history (432972)
Claudio Latorre, Pontifical Catholic University of Chile, Departamento de Ecologia, Santiago, Chile; Institute of Ecology & Biodiversity, Santiago, Chile, Ricardo De Pol-Holz, Universidad de Magallanes, GAIA-Antartica, Punta Arenas, Chile, Mariana Yilales, P. Universidad Catolica de Chile, Departamento de Ecología, Santiago, Chile, Claudio L Pozo-Millán, P. Universidad Católica de Chile, Departamento de Ecología, Santiago, Chile, Eugenia Gayo, Center for Climate and Resilience Research, Santiago, Chile and Calogero Santoro, Universidad de Tarapacá, Instituto de Alta Investigacion, Arica, Chile

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