Atmospheric circulation over Patagonia from the Jurassic to present: A review through proxy data and climatic modelling scenarios

This paper discusses the general atmospheric circulation over Patagonia on the basis of the principal palaeoclimate forcings: continental drift, orography, variations in the greenhouse gases in the Earth's atmosphere, evolution of the atmosphere and the oceans, changes in the orbit of the Earth...

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Detalles Bibliográficos
Autor: Compagnucci, R.H.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:Argentina
Institución:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
Repositorio:Biblioteca Digital (UBA-FCEN)
Idioma:inglés
OAI Identifier:paperaa:paper_00244066_v103_n2_p229_Compagnucci
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00244066_v103_n2_p229_Compagnucci
Access Level:acceso abierto
Palabra clave:Palaeo-winds
Palaeoclimate
Palaeoclimate forcings
Westerlies
albedo
atmospheric circulation
climate forcing
climate modeling
continental drift
Cretaceous
greenhouse gas
Hypsithermal
Jurassic
Last Glacial Maximum
Oligocene
orbital forcing
orography
paleoatmosphere
paleoclimate
Pliocene
proxy climate record
Tortonian
Patagonia
Descripción
Sumario:This paper discusses the general atmospheric circulation over Patagonia on the basis of the principal palaeoclimate forcings: continental drift, orography, variations in the greenhouse gases in the Earth's atmosphere, evolution of the atmosphere and the oceans, changes in the orbit of the Earth, albedo feedbacks, and the land surface. These processes affect climate on time scales of millions to hundreds of thousands of years. Additionally, orbital forcing has had a major influence on climate during the Quaternary. The palaeo-atmospheric circulation of Patagonia is analyzed for the Early to Late Jurassic, the Cretaceous, the Late Palaeocene-Eocene Thermal Maximum, the Tortonian-Oligocene cooling, the Pliocene, the Quaternary including the Last Glacial Maximum, the Holocene Optimum, and the last millennium changes. Alternative palaeo-atmospheric circulations from climatic modelling scenarios through the ages are reviewed and compared with proxy data. Detailed and updated reference information on the topics analyzed is also provided. © 2011 The Linnean Society of London.