Oxygen isotope ratios in tree rings (delta O-18(TR)) from northern Bolivia record local precipitation delta O-18 and correlate strongly with Amazon basin-wide rainfall. While this is encouraging evidence that delta O-18(TR) can be used for paleoclimate reconstructions, it remains unclear whether variation in delta O-18(TR) is truly driven by within-basin processes, thus recording Amazon climate directly, or if the isotope signal may already be imprinted on incoming vapor, perhaps reflecting a pan-tropical climate signal. We use atmospheric back trajectories combined with satellite observations of precipitation, together with water vapor transport analysis to show that delta O-18(TR) in Bolivia are indeed controlled by basin-intrinsic processes, with rainout over the basin the most important factor. Furthermore, interannual variation in basin-wide precipitation and atmospheric circulation are both shown to affect delta O-18(TR). These findings suggest delta O-18(TR) can be reliably used to reconstruct Amazon precipitation and have implications for the interpretation of other paleoproxy records from the Amazon basin.
机构:
Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USAColumbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Baker, Jessica C. A.
Hunt, Sarah F. P.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Hunt, Sarah F. P.
Clerici, Santiago J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Clerici, Santiago J.
Newton, Robert J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Newton, Robert J.
Bottrell, Simon H.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Bottrell, Simon H.
Leng, Melanie J.
论文数: 0引用数: 0
h-index: 0
机构:
British Geol Survey, NERC Isotope Geosci Facil, Keyworth NG12 5GG, Notts, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Leng, Melanie J.
Heaton, Timothy H. E.
论文数: 0引用数: 0
h-index: 0
机构:
British Geol Survey, NERC Isotope Geosci Facil, Keyworth NG12 5GG, Notts, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Heaton, Timothy H. E.
Helle, Gerhard
论文数: 0引用数: 0
h-index: 0
机构:
GFZ German Res Ctr Geosci, Sect Climate Dynam & Landscape Evolut 5 2, D-14473 Potsdam, GermanyUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Helle, Gerhard
Argollo, Jaime
论文数: 0引用数: 0
h-index: 0
机构:
Univ Mayor de San Andres, Lab Dendrocronol & Hist Ambiental, Inst Invest Geol & Medio Ambiente, Cotacota La Paz, BoliviaUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Argollo, Jaime
Gloor, Manuel
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Gloor, Manuel
Brienen, Roel J. W.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
机构:
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USAUniv Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
Brown, Derek
Worden, John
论文数: 0引用数: 0
h-index: 0
机构:
CALTECH, Jet Prop Lab, Pasadena, CA 91109 USAUniv Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
Worden, John
Noone, David
论文数: 0引用数: 0
h-index: 0
机构:
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USAUniv Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
机构:
Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USAColumbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Baker, Jessica C. A.
Hunt, Sarah F. P.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Hunt, Sarah F. P.
Clerici, Santiago J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Clerici, Santiago J.
Newton, Robert J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Newton, Robert J.
Bottrell, Simon H.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Bottrell, Simon H.
Leng, Melanie J.
论文数: 0引用数: 0
h-index: 0
机构:
British Geol Survey, NERC Isotope Geosci Facil, Keyworth NG12 5GG, Notts, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Leng, Melanie J.
Heaton, Timothy H. E.
论文数: 0引用数: 0
h-index: 0
机构:
British Geol Survey, NERC Isotope Geosci Facil, Keyworth NG12 5GG, Notts, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Heaton, Timothy H. E.
Helle, Gerhard
论文数: 0引用数: 0
h-index: 0
机构:
GFZ German Res Ctr Geosci, Sect Climate Dynam & Landscape Evolut 5 2, D-14473 Potsdam, GermanyUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Helle, Gerhard
Argollo, Jaime
论文数: 0引用数: 0
h-index: 0
机构:
Univ Mayor de San Andres, Lab Dendrocronol & Hist Ambiental, Inst Invest Geol & Medio Ambiente, Cotacota La Paz, BoliviaUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Argollo, Jaime
Gloor, Manuel
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
Gloor, Manuel
Brienen, Roel J. W.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Geog, Dept Ecol & Global Change, Leeds LS2 9JT, W Yorkshire, England
机构:
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USAUniv Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
Brown, Derek
Worden, John
论文数: 0引用数: 0
h-index: 0
机构:
CALTECH, Jet Prop Lab, Pasadena, CA 91109 USAUniv Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
Worden, John
Noone, David
论文数: 0引用数: 0
h-index: 0
机构:
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USAUniv Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA