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RISAtmospheric Circulation Trends, 1950–2000: The Relative Roles of Sea Surface Temperature Forcing and Direct Atmospheric Radiative Forcing
Publisher: American Meteorological Society
Abstract: The relative roles of direct atmospheric radiative forcing (due to observed changes in well-mixed greenhouse gases, tropospheric and stratospheric ozone, sulfate and volcanic aerosols, and solar output) and observed sea ...
Simulation of the 1976/77 Climate Transition over the North Pacific: Sensitivity to Tropical Forcing
Publisher: American Meteorological Society
Abstract: This study examines the contribution of tropical sea surface temperature (SST) forcing to the 1976/77 climate transition of the winter atmospheric circulation over the North Pacific using a combined observational and ...
Tropical Atlantic Influence on European Heat Waves
Publisher: American Meteorological Society
Abstract: Diagnostics combining atmospheric reanalysis and station-based temperature data for 1950?2003 indicate that European heat waves can be associated with the occurrence of two specific summertime atmospheric circulation ...
Forced and Internal Components of Winter Air Temperature Trends over North America during the past 50 Years: Mechanisms and Implications
Publisher: American Meteorological Society
Abstract: his study elucidates the physical mechanisms underlying internal and forced components of winter surface air temperature (SAT) trends over North America during the past 50 years (1963?2012) using a combined observational ...
Pacific Interdecadal Climate Variability: Linkages between the Tropics and the North Pacific during Boreal Winter since 1900
Publisher: American Meteorological Society
Abstract: This study examines the tropical linkages to interdecadal climate fluctuations over the North Pacific during boreal winter through a comprehensive and physically based analysis of a wide variety of observational datasets ...
Tropical Pacific and Atlantic Climate Variability in CCSM3
Publisher: American Meteorological Society
Abstract: Simulations of the El Niño?Southern Oscillation (ENSO) phenomenon and tropical Atlantic climate variability in the newest version of the Community Climate System Model [version 3 (CCSM3)] are examined in comparison with ...
The Northern Hemisphere Extratropical Atmospheric Circulation Response to ENSO: How Well Do We Know It and How Do We Evaluate Models Accordingly?
Publisher: American Meteorological Society
Abstract: AbstractApplication of random sampling techniques to composite differences between 18 El Niño and 14 La Niña events observed since 1920 reveals considerable uncertainty in both the pattern and amplitude of the Northern ...
Projecting North American Climate over the Next 50 Years: Uncertainty due to Internal Variability
Publisher: American Meteorological Society
Abstract: his study highlights the relative importance of internally generated versus externally forced climate trends over the next 50 yr (2010?60) at local and regional scales over North America in two global coupled model ensembles. ...
The Dynamical Simulation of the Community Atmosphere Model Version 3 (CAM3)
Publisher: American Meteorological Society
Abstract: The dynamical simulation of the latest version of the Community Atmosphere Model (CAM3) is examined, including the seasonal variation of its mean state and its interannual variability. An ensemble of integrations forced ...
Extreme Cold Outbreaks in the United States and Europe, 1948–99
Publisher: American Meteorological Society
Abstract: Reanalysis output for 1948?99 is used to evaluate the temporal distributions, the geographical origins, and the atmospheric teleconnections associated with major cold outbreaks affecting heavily populated areas of middle ...