Environmental records from temperate glacier ice on Nevado Coropuna saddle, southern Peru

J. Herreros, I. Moreno, J. D. Taupin, P. Ginot, N. Patris, M. De Angelis, M. P. Ledru, F. Delachaux, U. Schotterer

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

19 Citas (Scopus)

Resumen

We investigated past climate variability and the zonal short and long-range transport of air masses in tropical South America using chemical, isotopic and palynological signals from a 42m-long ice core recovered in 2003 from the saddle of the Nevado Coropuna, southern Peru (72°39′W; 15°32′ S; 6080ma.s.l.). We found that precipitation at this site depends mainly on the easterly circulation of air masses originated from the tropical Atlantic Ocean. Nevertheless, sporadic Pacific air masses arrivals, and strong cold waves coming from southern South America reach this altitude site.In spite of post-depositional effects, we were able to identify two strong ENSO (El Niño-Southern Oscillation) event signatures (1982-1983 and 1992) and the eruptive activity of the nearby Sabancaya volcano (1994).

Idioma originalInglés
Páginas (desde-hasta)27-34
Número de páginas8
PublicaciónAdvances in Geosciences
Volumen22
DOI
EstadoPublicada - 2009
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'Environmental records from temperate glacier ice on Nevado Coropuna saddle, southern Peru'. En conjunto forman una huella única.

Citar esto