GC018
Changes and impacts of climate variability in South America

Session ID#: 159189

Session Description:
Documenting climate variability in South America is important to better discern natural changes from external forcing due to global warming. The scarcity of observational climate data is a challenge to evaluate climate dynamics of the region and its connection to the global climate system. This session welcomes studies based on paleoclimate reconstructions and simulations of temperature and hydroclimatic variability over South America, as well as the assessment of climate change impacts on ecosystems and human populations. Increases in the frequency and intensity of extreme events, changes in the duration and spatial extent of the South American Monsoon, the Hadley Cell expansion, climate sensitivity of tropical trees, forest dieback, changes in the carbon cycle and reconstructions of El Niño Southern Oscillation, the Interdecadal Pacific Oscillation and past volcanic eruptions are just some examples of relevant topics. Presentations of new datasets, multidisciplinary methodological advances and novel educational outreach approaches are also welcome.
Co-Organized:
  • B - Biogeosciences
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0473 Paleoclimatology and paleoceanography [BIOGEOSCIENCES]
1616 Climate variability [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
4922 El Nino [PALEOCEANOGRAPHY]

Primary Convener:  Laia Andreu-Hayles, Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, United States
Conveners:  Clara Rodríguez-Morata, Columbia University of New York, Lamont-Doherty Earth Observatory, New York, United States and Mathias F Vuille, University at Albany, State University of New York, Department of Atmospheric and Environmental Sciences, Albany, NY, United States
Student/Early Career Convener:  Rebecca Orrison, University at Albany, State University of New York, Department of Atmospheric and Environmental Sciences, Albany, NY, United States
 
The Role of ENSO on Tropical South American Precipitation During the Mid-Holocene. (1070928)
Minn Lin Wong, Earth Observatory of Singapore, Singapore, Singapore, David Battisti, University of Washington, Dept. of Atmospheric Sciences, Seattle, WA, United States, Qinghua Ding, University of California Santa Barbara, Santa Barbara, United States, Xiaojuan Liu, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States and Xianfeng Wang, Asian School of the Environment, Nanyang Technological University, Singapore, Singapore; Nanyang Technological University, School of the Environment, Singapore, Singapore
 
Mass Balance Modeling and Sediment Records of the Last Glacial Cycle in the Tropical Central Andes of Peru (1088646)
Nathan Stansell1, Bryan G Mark2, Joseph M Licciardi3, Donald T Rodbell4 and Tal Shutkin2, (1)Northern Illinois University, DeKalb, IL, United States, (2)The Ohio State University, Byrd Polar and Climate Research Center, Columbus, OH, United States, (3)University of New Hampshire, Earth Sciences, Durham, NH, United States, (4)Union College, Geosciences, Schenectady, United States
 
Investigating the Accuracy of Global Climate Models in Calculating Freezing Level Height in the Tropical Andes (1098250)
Shelby Turner, University at Albany State University of New York, Albany, NY, United States and Mathias F Vuille, University at Albany, State University of New York, Department of Atmospheric and Environmental Sciences, Albany, NY, United States
 
Paleoclimate and Paleoenvironmental Changes Across the South Border of the Amazon Basin During the Late-Holocene (1113680)
Marcela Edaurda Della Libera de Godoy, Johannes Gutenberg University of Mainz, Mainz, Germany, Denis Scholz, Institute for Geosciences, Johannes Gutenberg-Universität, Mainz, Germany, Hubert Vonhof, Max Planck Institute for Chemistry, Mainz, Germany, Valdir Felipe Novello, University of Tübingen, Department of Geosciences, Tübingen, Germany, Francisco William Cruz Sr., Universidade de São Paulo, Instituto de Geociências, São Paulo, Brazil and Julio Cauhy Rodrigues, Johannes Gutenberg University of Mainz, Institute for Geoscience, Mainz, Germany
 
Holocene Extreme Precipitation Frequency and Paleoclimate Reconstruction Based on High-Resolution Multi-Proxy Records from Speleothems from South-East Brazil (1113992)
Hubert Vonhof, Max Planck Institute for Chemistry, Mainz, Germany, Denis Scholz, Institute for Geosciences, Johannes Gutenberg-Universität, Mainz, Germany, Marcela Edaurda Della Libera de Godoy, Johannes Gutenberg University of Mainz, Mainz, Germany, Nicolas M Strikis, Universidade Federal Fluminense, Geochemestry Department, Niteroi, Brazil, Francisco William Cruz Sr., Universidade de São Paulo, Instituto de Geociências, São Paulo, Brazil and Julio Cauhy Rodrigues, Johannes Gutenberg University of Mainz, Institute for Geoscience, Mainz, Germany
 
Drought and Inca rituals in the summits of the Atacama Andes (1115338)
Duncan Christie1, Jose Berenguer2, Ricardo De Pol-Holz3, Claudio Alvarez1, Felipe Flores4, Santiago Ancapichun5, Mariano S Morales6, Diego Aliste1, Guaciara M Santos7, Ricardo Villalba8 and Sebastian Ibacache9, (1)Instituto de Conservación-Biodiversidad y Territorio, Universidad Austral de Chile, Facultad de Ciencias Forestales y Recursos Naturales, Valdivia, Chile, (2)Museo Chileno de Arte Precolombino, Santiago, Chile, (3)Universidad de Magallanes, GAIA-Antartica, Punta Arenas, Chile, (4)Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación Biodiversidad y Territorio, Universidad Austral de Chile, Campus Isla Teja, Valdivia 5110566, Los Ríos, Chile, Chile, (5)Universidad de Concepcion, Concepcion, Chile, (6)Instituto Argentino Nivologia, Glaciología y Ciencias Ambientales (IANIGLA), CCT-CONICET, C.C. 330, 5500 Mendoza, Argentina, Mendoza, Argentina, (7)University of California Irvine, Earth System Science, Irvine, CA, United States, (8)Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales, Mendoza, Argentina, (9)Museo de Arte Precolombino, Santiago, Chile
 
A tree ring oxygen isotope chronology from the Eastern Amazon is related to precipitation, streamflow, and ENSO variability (1120233)
Lucas Pereira1, Ana Carolina Maioli Compos Barbosa2, David W Stahle3, Daniela Granato Souza4, Camila Lais Farrapo1, Arnoud Boom5 and Roel Brienen6, (1)Federal University of Lavras, Department of Forest Science, Lavras, Brazil, (2)Federal University of Lavras, Lavras, Brazil, (3)University of Arkansas, Geosciences, Fayetteville, AR, United States, (4)University of Arkansas, Fayetteville, AR, United States, (5)University of Leicester, School of Geography, Geology and the Environment, Leicester, United Kingdom, (6)University of Leeds, School of Geography, Leeds, United Kingdom
 
Comparing the characteristics of mid-Holocene hydroclimate to that of the historical period in South America using variable resolution CESM simulations (1125089)
Asiya Badarunnisa Sainudeen1, Marcus Lofverstrom2 and Diane Thompson2, (1)University of Arizona, Tucson, AZ, United States, (2)University of Arizona, Department of Geosciences, Tucson, United States
 
Recent Increase in Water Deficit in Central Brazil is Recorded in the Oxygen Isotopes of Dry-forest Tree Species (1146979)
Milena Godoy-Veiga1, Gabriel de Assis Pereira2, Ana Carolina Maioli Compos Barbosa3, Bruno Barcante Ladvocat Cintra4, Francisco William Cruz Sr.5, Nicolas M Strikis6, Gregório Ceccantini1, Mário Tomazello-Filho2, Veronica Angyalossy1 and Giuliano Locosselli7, (1)University of Sao Paulo, Department of Botany, Sao Paulo, Brazil, (2)Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Departamento de Ciências Florestais, Piracicaba, Brazil, (3)Federal University of Lavras, Lavras, Brazil, (4)University of Birmingham, Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (5)Universidade de São Paulo, Instituto de Geociências, São Paulo, Brazil, (6)Universidade Federal Fluminense, Geochemestry Department, Niteroi, Brazil, (7)Centro de Energia Nuclear na Agricultura - USP, Divisão de Funcionamento de Ecossistemas Tropicais, Piracicaba, Brazil
 
Systemic view of trees' responses to climate change, a case study with a Neotropical tree species. (Invited) (1147605)
Giuliano Locosselli1, Bernardo Macieira2, Marcos Buckeridge3, Vinícios Jardim3, Stefan Krottenthaler4, Dieter Anhuf4, Gehard Helle5, Geraldo Cuzzuol2 and Gregório Ceccantini6, (1)Universidade de São Paulo, Piracicaba, Brazil, (2)Universidade Federal do Espírito Santo, Vitória, Brazil, (3)Universidade de São Paulo, São Paulo, Brazil, (4)University of Passau, Passau, Germany, (5)GFZ, Potsdam, Germany, (6)University of Sao Paulo, Department of Botany, Sao Paulo, Brazil
 
Temperature and precipitation changes in Equatorial South America (1160955)
Rasa Zalakeviciute, Organization Not Listed, Washington, DC, United States; Universidad de Las Americas, Facultad de Ingenierias y Ciencias Aplicadas, Quito, Ecuador and Francisco Cuesta, Universidad de Las Americas, DGIV, Quito, Ecuador
 
Internal and External Drivers of South American Summer Monsoon Variability During the Current Warm Period. (1163301)
Rebecca Orrison, University at Albany State University of New York, Albany, NY, United States and Mathias F Vuille, University at Albany, State University of New York, Department of Atmospheric and Environmental Sciences, Albany, NY, United States
 
Understanding Glacial Patterns Within Lake Sediments of The Peruvian Andes (1168245)
Lena N Campisi, University at Albany State University of New York, Atmospheric Sciences, Albany, NY, United States, Aubrey L Hillman, University at Albany State University of New York, Albany, NY, United States, Jamie Vornlocher, University of Pittsburgh, Pittsburgh, PA, United States and Benjamin R. Vining, University of Arkansas-Fayetteville, Anthropology, Fayetteville, United States
 
Development of the South American Monsoon System and its Impact on Grasslands (1170263)
Nadja Insel, Northeastern Illinois University, Earth Science, Chicago, IL, United States, Ethan Hyland, North Carolina State University Raleigh, Department of Marine, Earth & Atmospheric Sciences, Raleigh, NC, United States, Jennifer M Cotton, California State University, Northridge, Los Angeles, CA, United States and David B Rowley, Univ Chicago, Chicago, IL, United States
 
The first soil moisture reconstruction inferred by tree and shrub rings is revealing unprecedented dry conditions in Mediterranean Chile (30°-37°S) since 1616 (1188746)
Alvaro Gonzalez-Reyes, Universidad Mayor, Centro de Observación de la Tierra Hémera, Santiago, Chile, Duncan Christie, Instituto de Conservación-Biodiversidad y Territorio, Universidad Austral de Chile, Facultad de Ciencias Forestales y Recursos Naturales, Valdivia, Chile, Martin Hadad, CIGEOBIO (CONICET-UNSJ), San Juan, Argentina, Ariel Muñoz, Universidad Católica de Valparaíso, Institute of Geography, Valparaíso, Chile, Alejandro Venegas-Gonzalez, Centro de Observación de la tierra Hémera, Universidad Mayor, Chile, Santiago, Chile, Isadora Schneider, Pontificia Universidad Católica de Valparaíso, Chile, Valparaiso, Chile, Stephanie Gibson-Carpintero, Centro de observación de la Tierra Hémera, Universidad Mayor, Chile, Santiago, Chile, Valeria Tapia, Pontificia Universidad Catolica de Valparaiso, Chile, Valparaiso, Chile and Carlos LeQuesne, Universidad Austral, Valdivia, Chile
 
Multidisciplinary Methodological Approach for Flash Flood Risk Assessment in Rural Communities from the Peruvian Andes. (1189434)
Clara Rodriguez, Lamont Doherty Earth Observatory (Columbia University), New York, United States, Andrew Kruczkiewicz, Columbia University, International Research Institute for Climate and Society, Palisades, NY, United States, Humberto J Vergara, Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States and Laia Andreu-Hayles, Columbia University, Lamont-Doherty Earth Observatory, New York, NY, United States
 
New insights in quantitative wood anatomy and radiocarbon dating as complementary methodologies to study tree species from the Central tropical Andes. (1193272)
Arturo Pacheco-Solana, Columbia University, Lamont-Doherty Earth Observatory, New York, United States, Rose Oelkers, Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Milagros Rodriguez Caton, nstituto Argentino Nivologia, Glaciología y Ciencias Ambientales (IANIGLA), CCT-CONICET, Mendoza, Argentina, Guaciara M Santos, University of California Irvine, Earth System Science, Irvine, CA, United States, Ernesto Tejedor Vargas, University at Albany State University of New York, Albany, NY, United States, Alfredo F. Fuentes Claros, Herbario Nacional de Bolivia. La Paz, Bolivia, La Paz, Bolivia, Eugenia Ferrero, Instituto Argentino Nivologia, Glaciología y Ciencias Ambientales (IANIGLA), CCT-CONICET, C.C. 330, 5500 Mendoza, Argentina, Mendoza, Argentina, Troy Nixon, Lamont-Doherty Earth Observatory of Columbia University, New York, United States, Carla Maldonado, Herbario Nacional de Bolivia, La Paz, Bolivia and Laia Andreu-Hayles, Columbia University, Lamont-Doherty Earth Observatory, New York, NY, United States
 
Climate Impacts on the Radial Growth of Tree Species in the Bolivian Amazon (1195068)
Rose Oelkers1, Laia Andreu-Hayles2, Milagros Rodríguez-Catón2, Eugenia Ferrero3, Arturo Pacheco-Solana4, Guaciara M Santos5, Ernesto Tejedor Vargas6, Rosanne D’Arrigo7, Carla Maldonado8 and Troy Nixon9, (1)Lamont -Doherty Earth Observatory, Environmental Science, Palisades, NY, United States, (2)Columbia University, Lamont-Doherty Earth Observatory, New York, NY, United States, (3)Instituto Argentino Nivologia, Glaciología y Ciencias Ambientales (IANIGLA), CCT-CONICET, C.C. 330, 5500 Mendoza, Argentina, Mendoza, Argentina, (4)Columbia University, Lamont-Doherty Earth Observatory, New York, United States, (5)University of California Irvine, Earth System Science, Irvine, CA, United States, (6)University at Albany State University of New York, Albany, NY, United States, (7)Lamont Doherty Earth Observatory, Palisades, NY, United States, (8)Herbario Nacional de Bolivia, La Paz, Bolivia, (9)Lamont-Doherty Earth Observatory of Columbia University, New York, United States
 
The Contribution of Tree-Ring Isotopes to Reconstruct Regional Climate and Atmospheric Patterns in South America (Invited) (1203041)
Valerie Daux, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France
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