noaa-cave-13836
Northern Peru 250KYr Stalagmite Stable Isotope Data
Cheng, H.; Sinha, A.; Cruz, F.W.; Wang, X.; Edwards, R.L.; d'Horta, F.M.; Ribas, C.C.; Vuille, M.; Stott, L.D.; Auler, A.S.
Northern Peru 250KYr Stalagmite Stable Isotope Data
2013-02-14
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/13836
Investigator
H.
Cheng
Investigator
A.
Sinha
Investigator
F.W.
Cruz
Investigator
X.
Wang
Investigator
R.L.
Edwards
Investigator
F.M.
d'Horta
Investigator
C.C.
Ribas
Investigator
M.
Vuille
Investigator
L.D.
Stott
Investigator
A.S.
Auler
earth science
paleoclimate
speleothems
depth,null,null,millimeter,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
speleothems
age,null,null,calendar kiloyear before present,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
delta 13C,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
speleothems
carbon isotopes
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
hydrology
246360 cal yr BP
290 cal yr BP
Complete
-5.93
-5.73
-77.5
-77.3
860
960
Continent
South America
Peru
Cueva del Diamante>LATITUDE -5.73>LONGITUDE -77.5
Continent
South America
Peru
El Condor Cave>LATITUDE -5.93>LONGITUDE -77.3
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Hai Cheng, Ashish Sinha, Francisco W. Cruz, Xianfeng Wang, R. Lawrence Edwards, Fernando M. d'Horta, Camila C. Ribas, Mathias Vuille, Lowell D. Stott, and Augusto S. Auler. 2013.
Climate change patterns in Amazonia and biodiversity.
Nature Communications, Vol. 4, 1411.
DOI: 10.1038/ncomms2415
Precise characterization of hydroclimate variability in Amazonia on various timescales is critical to understanding the link between climate change and biodiversity. Here we present absolute-dated speleothem oxygen isotope records that characterize hydroclimate variation in western and eastern Amazonia over the past 250 and 20 ka, respectively. Although our records demonstrate the coherent millennial-scale precipitation variability across tropical-subtropical South America, the orbital-scale precipitation variability between western and eastern Amazonia exhibits a quasi-dipole pattern. During the last glacial period, our records imply a modest increase in precipitation amount in western Amazonia but a significant drying in eastern Amazonia, suggesting that higher biodiversity in western Amazonia, contrary to 'Refugia Hypothesis', is maintained under relatively stable climatic conditions. In contrast, the glacial-interglacial climatic perturbations might have been instances of loss rather than gain in biodiversity in eastern Amazonia, where forests may have been more susceptible to fragmentation in response to larger swings in hydroclimate.
STUDY NOTES: Stable isotope data (d13C and d18O) data from 7 stalagmites collected in 2 caves in northern Peru
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/diamante2013nar-f.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/condor2013elc-b.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/diamante2013nar-d.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/diamante2013nar-c.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/condor2013elc-a.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/diamante2013nar-c-d.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/diamante2013nar-c-f.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11