Abstract. The Indian Ocean exhibits multiple modes of interannual climate variability, whose future behaviour is uncertain. Recent analysis glacial climates has uncovered an additional El Niño-like equatorial mode in the Ocean, which could also emerge warm states. Here we explore changes tropical simulated by Paleoclimate Model Intercomparison Project (PMIP4). These simulations are performed en...

Abstract. Holocene climate reconstructions are useful for understanding the diverse features and spatial heterogeneity of past future change. Here we present a database western North American paleoclimate records. The gathers time series from 184 terrestrial marine sites, including 381 individual proxy records span at least 4000 last 12 000 years (median duration 10 725 years) have been screene...

This paper considers methods for testing directions of causation in the paleoclimate series for temperature and CO2 concentration derived from Antarctic ice cores from 800,000 years BP. These series are well-known to move together in the transitions between glacial and interglacial periods, but the dynamic relationship between the series is open to dispute. Bivariate models are constructed, in ...

We investigate the consistency of various ensembles of climate model simulations with the Multiproxy Approach for the Reconstruction of the Glacial Ocean Surface (MARGO) sea surface temperature data synthesis. We discover that while two multi-model ensembles, created through the Paleoclimate Model Intercomparison Projects (PMIP and PMIP2), pass our simple tests of reliability, an ensemble based...

[1] Signal matching is a powerful tool frequently used in paleoclimate research, but it is enormously timeconsuming when performed by hand. Previously proposed automatic correlation techniques require very good initial fits to find the correct alignment of two records. A new technique presented in this paper utilizes dynamic programming to find the globally optimal alignment of two records. Geo...