A high-resolution history of the South American Monsoon from Last Glacial Maximum to the Holocene

Author(s):Show less -

Novello, Valdir F. ; Cruz, Francisco W. ; Vuille, Mathias ; Strikis, Nicolas M. ; Edwards, R. Lawrence ; Cheng, Hai ; Emerick, Suellyn ; De Paula, Marcos S. ; Li, Xianglei ; Barreto, Eline de S. ; Karmann, Ivo ; Santos, Roberto V.

• Document type: Journal article
• Source: SCIENTIFIC REPORTS; v. 7, MAR 10 2017.
• Web of Science Citations: 28

Abstract

The exact extent, by which the hydrologic cycle in the Neotropics was affected by external forcing during the last deglaciation, remains poorly understood. Here we present a new paleo-rainfall reconstruction based on high-resolution speleothem delta O-18 records from the core region of the South American Monsoon System (SAMS), documenting the changing hydrological conditions over tropical South America (SA), in particular during abrupt millennial-scale events. This new record provides the best-resolved and most accurately constrained geochronology of any proxy from South America for this time period, spanning from the Last Glacial Maximum (LGM) to the mid-Holocene. (AU)

• FAPESP's process: 12/03942-4 - South America Monsoon System activity in certer-west of Brazil based in spelothem records associated with other paleoclimate records from South America
• Grantee: Valdir Felipe Novello
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 16/15807-5 - Paleoclimate and paleoenvironmental reconstructions over the last glacial period in the mid-west Brazil
• Grantee: Valdir Felipe Novello
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 14/10095-1 - South America monsoon system activity in certer-west of Brazil based in spelothem records associated with other paleoclimate records from South America
• Grantee: Valdir Felipe Novello
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 15/08351-2 - South America monsoon system activity in mid-west Brazil based in speleothems records associated with climate models
• Grantee: Valdir Felipe Novello
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 09/12902-3 - Variability of Summer Monsoon System over the Central-West Brazil during Holocene, based on paleoclimate records from speleothems.
• Grantee: Marcos Saito de Paula
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 12/50260-6 - Structure and evolution of the Amazonian biota and its environment: an integrative approach
• Grantee: Lúcia Garcez Lohmann
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 16/00299-4 - Geochemistry of vadose percolation in karst systems: implications for paleoclimatic interpretations os speleothem records
• Grantee: Ivo Karmann
• Support Opportunities: Regular Research Grants
• FAPESP's process: 12/01187-4 - A calibration study in Central Brazil caves: implications for the paleoclimate inferences from speleothem records
• Grantee: Ivo Karmann
• Support Opportunities: Regular Research Grants