Southern Amazon Basin 200 Year Precipitation Reconstruction Lopez, L.; Stahle, D.W.; Villalba, R.; Torbenson, M.A.C.; Feng, S.; Cook, E.R. Lopez, L. Stahle, D.W. Villalba, R. Torbenson, M.A.C. Feng, S. Cook, E.R. Precipitation Reconstruction CEMC Centrolobium microchaete (Benth.) H.C. Lima Canary wood earth science/paleoclimate/climate reconstructions|tree ring (age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/instrumental (precipitation,null,null,millimeter,monthly,instrumental,null,null,N,CRU Southern Amazon) earth science/paleoclimate/instrumental (precipitation,null,null,millimeter,Oct-Mar,instrumental,null,null,N,CRU Southern Amazon) earth science/paleoclimate/climate reconstructions|tree ring (precipitation,null,null,millimeter,Oct-Mar,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/reconstructions (Southern Amazon Basin>LATITUDE >LONGITUDE ) Moisture sensitive tree ring chronologies of Centrolobium microchaete have been developed from seasonally dry forests in the southern Amazon Basin and used to reconstruct wet season rainfall totals from 1799 to 2012, adding over 150 years of rainfall estimates to the short instrumental record for the region. The reconstruction is correlated with the same atmospheric variables that influence the instrumental measurements of wet season rainfall. Anticyclonic circulation over midlatitude South America promotes equatorward surges of cold and relatively dry extratropical air that converge with warm moist air to form deep convection and heavy rainfall over this sector of the southern Amazon Basin. Interesting droughts and pluvials are reconstructed during the preinstrumental nineteenth and early twentieth centuries, but the tree ring reconstruction suggests that the strong multidecadal variability in instrumental and reconstructed wet season rainfall after 1950 may have been unmatched since 1799. STUDY NOTES: Rainfall reconstruction for the southern Amazon Basin rainy season (October-March) over the past 200 years, based on Centrolobium microchaete tree-ring chronologies from southeastern Bolivia. Tree-ring chronologies are archived in the International Tree-Ring Data Bank, site codes BOL001-BOL004. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Lopez, L. Investigator : Stahle, D.W. Investigator : Villalba, R. Investigator : Torbenson, M.A.C. Investigator : Feng, S. Investigator : Cook, E.R. 2017-07-29 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/22433 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/southamerica/amazon2017precip.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/southamerica/amazon2017precip.txt English https://www.ncdc.noaa.gov/paleo/study/22433 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/southamerica/amazon2017precip.txt Lidio Lopez, David Stahle, Ricardo Villalba, Max Torbenson, Song Feng, Edward Cook2017Tree ring reconstructed rainfall over the southern Amazon BasinGeophysical Research Letters10.1002/2017GL073363http://onlinelibrary.wiley.com/doi/10.1002/2017GL073363/full START YEAR: 1799 AD * END YEAR: 2012 AD -63.25 -17.25 -61.25 -13.75