Coherent isotope history of Andean ice cores over the last century

Details Coherent isotope history of Andean ice cores over the last century Coherent isotope history of Andean ice cores over the last century

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30d..28h&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 4, pp. 28-1, CiteID 1179, DOI 10.1029/2002GL014870

Mathematics

Logic

20

Meteorology And Atmospheric Dynamics: Paleoclimatology, Meteorology And Atmospheric Dynamics: General Circulation, Hydrology: Glaciology (1863), Hydrology: Precipitation (3354)

Scientific paper

Isotope records from Andean ice cores provide detailed and high-resolution climate information on various time scales. However, the relationship between these valuable isotope records and local or regional climate remains poorly understood. Here we present results from two new drillings in Bolivia, from the Illimani and the Sajama ice caps. All four high altitude isotope signals in the Andes now available (Huascarán, Quelccaya, Illimani and Sajama) show near identical decadal variability in the 20th century. Comparison with general circulation model results and meteorological data suggest that the Andean high altitude records are primarily controlled by precipitation variability over the Amazon basin.

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