Towards high-resolution climate reconstruction using an off-line data assimilation and COSMO-CLM 5.00 model

• Published in: Climate of the past Vol. 14; no. 9; pp. 1345 - 1360
• Main Authors: Fallah, Bijan, Russo, Emmanuele, Acevedo, Walter, Mauri, Achille, Becker, Nico, Cubasch, Ulrich
• Format: Journal Article
• Language: English
• Published: Katlenburg-Lindau Copernicus GmbH 24.09.2018; Copernicus Publications
• Subjects: Boundary conditions; Climate; Climate models; Computer simulation; Correlation; Correlation analysis; Data assimilation; Data collection; Error detection; Estimation errors; High resolution; Holocene; Initial conditions; Meteorological research; Methods; Noise levels; Noise sensitivity; Paleoclimate; Pollen; Reconstruction; Records; Regional climate models; Regional climates; Resolution; Sensitivity; Sensitivity analysis; Simulation; State estimation

Data assimilation (DA) methods have been used recently to constrain the climate model forecasts by paleo-proxy records. Both DA and climate models are computationally very expensive. Moreover, in paleo-DA, the time step of consequence for observations is usually too long for a dynamical model to fol...