noaa-cave-5430
Lachniet et al. 2004 Chilibrillo Cave, Panama Speleothem Stable Isotope Data
Lachniet, M.S.
Lachniet et al. 2004 Chilibrillo Cave, Panama Speleothem Stable Isotope Data
2004-07-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/5430
Investigator
M.S.
Lachniet
earth science
paleoclimate
speleothems
depth,null,null,millimeter,null,speleothems,null,null,N,depth measured relative to bottom of core
earth science
paleoclimate
speleothems
age,null,null,calendar year before present,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
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
-230 AD
1260 AD
2180 cal yr BP
690 cal yr BP
Complete
9.2
9.2
-79.7
-79.7
60
60
Continent
North America
Central America
Panama
Chilibrillo Cave>LATITUDE 9.2>LONGITUDE -79.7
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
Lachniet, M.S. 2004. A 1500-year El Niņo/Southern Oscillation and rainfall history for the Isthmus of Panama from speleothem calcite. Journal of Geophysical Research, Atmospheres Vol. 109, D20117
The effect of the El Niņo/Southern Oscillation (ENSO) on tropical rainfall variations of the past two millennia is largely unknown. High-resolution monsoon records are sparse, despite the role of ENSO in generating global hydrologic anomalies in modern climate. To investigate the relationship between ENSO and the Central American Monsoon, we generated a high-resolution (~2.9 yr/sample) oxygen-isotope monsoon rainfall record from a U/Th-dated stalagmite (180 B.C. to 1310 A.D.) from the Isthmus of Panama. We present evidence for a weakened monsoon during the ""High Medieval"" (1100 - 1200 A.D.) and the Classic Maya Collapse (750 - 950 A.D.). Rainfall decreased and was more variable after 550 A.D., and the period 900 - 1310 A.D. was drier than the preceding millennium. A weaker monsoon corresponds with increased El Niņo variability, and our data display statistical variance in the ENSO band. We conclude that ENSO variation has forced isthmian rainfall and may have contributed to hemispheric climatic anomalies at this time.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/panama/chilibrillo2004.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11