Autores
Raphael Neukom, Jürg Luterbacher, Ricardo Villalba, Marcel Küttel, David Frank, Phil D Jones, Martin Grosjean, Heinz Wanner, J-C Aravena, David E Black, Duncan A Christie, Rosanne D’Arrigo, Antonio Lara, Mariano Morales, C Soliz-Gamboa, Ana Srur, Roberto Urrutia, Lucien von Gunten
Fecha de publicación
2011/7/1
Revista
Climate Dynamics
Volumen
37
Número
1-2
Páginas
35-51
Editor
Springer-Verlag
Descripción
We statistically reconstruct austral summer (winter) surface air temperature fields back to ad 900 (1706) using 22 (20) annually resolved predictors from natural and human archives from southern South America (SSA). This represents the first regional-scale climate field reconstruction for parts of the Southern Hemisphere at this high temporal resolution. We apply three different reconstruction techniques: multivariate principal component regression, composite plus scaling, and regularized expectation maximization. There is generally good agreement between the results of the three methods on interannual and decadal timescales. The field reconstructions allow us to describe differences and similarities in the temperature evolution of different sub-regions of SSA. The reconstructed SSA mean summer temperatures between 900 and 1350 are mostly above the 1901–1995 climatology. After 1350, we …
Artículos de Google Académico
R Neukom, J Luterbacher, R Villalba, M Küttel, D Frank… - Climate Dynamics, 2011
