TY - JOUR T1 - Historical SAM Variability. Part II: Twentieth-Century Variability and Trends from Reconstructions, Observations, and the IPCC AR4 Models JO - J CLIMATE PY - 2009/10/15 AU - Fogt RL AU - Perlwitz J AU - Monaghan AJ AU - Bromwich DH AU - Jones JM AU - Marshall GJ ED - DO - DOI: 10.1175/2009JCLI2786.1 VL - 22 IS - 20 SP - 5346 EP - 5365 Y2 - 2024/10/23 ER -