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Time-Mean Response over the Tropical Pacific to Increased C02 in a Coupled Ocean-Atmosphere Model
Publisher: American Meteorological Society
Abstract: The time-mean response over the tropical Pacific region to a quadrupling Of CO2 is investigated using a global coupled ocean-atmosphere general circulation model. Tropical Pacific sea surface temperatures (SSTs) rise by ...
Model Assessment of Decadal Variability and Trends in the Tropical Pacific Ocean
Publisher: American Meteorological Society
Abstract: In this report, global coupled ocean?atmosphere models are used to explore possible mechanisms for observed decadal variability and trends in Pacific Ocean SSTs over the past century. The leading mode of internally generated ...
Sea Level Pressure Trends: Model-Based Assessment of Detection, Attribution, and Consistency with CMIP5 Historical Simulations
Publisher: American Meteorological Society
Model Assessment of Observed Precipitation Trends over Land Regions: Detectable Human Influences and Possible Low Bias in Model Trends
Publisher: American Meteorological Society
Abstract: AbstractPrecipitation trends for 1901?2010, 1951?2010, and 1981?2010 over relatively well-observed global land regions are assessed for detectable anthropogenic influences and for consistency with historical simulations ...
On Estimates of Historical North Atlantic Tropical Cyclone Activity
Publisher: American Meteorological Society
Abstract: In this study, an estimate of the expected number of Atlantic tropical cyclones (TCs) that were missed by the observing system in the presatellite era (between 1878 and 1965) is developed. The significance of trends in ...
Impact of CO2-Induced Warming on Simulated Hurricane Intensity and Precipitation: Sensitivity to the Choice of Climate Model and Convective Parameterization
Publisher: American Meteorological Society
Abstract: Previous studies have found that idealized hurricanes, simulated under warmer, high-CO2 conditions, are more intense and have higher precipitation rates than under present-day conditions. The present study explores the ...
Reply
Publisher: American Meteorological Society
Abstract: A response is made to the comments of Michaels et al. concerning a recent study by the authors. Even after considering Michaels et al.?s comments, the authors stand behind the conclusions of the original study. In contrast ...
30–60 Day Atmospheric Oscillations: Composite Life Cycles of Convection and Circulation Anomalies
Publisher: American Meteorological Society
Abstract: Life cycles of the 30?60 day atmospheric oscillation were examined by compositing 30?60 day filtered NMC global wind analyses (250 mb and 850 mb) and outgoing longwave radiation (OLR) for the years 1979?84. Separate composite ...
Estimating Annual Numbers of Atlantic Hurricanes Missing from the HURDAT Database (1878–1965) Using Ship Track Density
Publisher: American Meteorological Society
Abstract: This study assesses the impact of imperfect sampling in the presatellite era (between 1878 and 1965) on North Atlantic hurricane activity measures and on the long-term trends in those measures. The results indicate that a ...
Simulated ENSO in a Global Coupled Ocean–Atmosphere Model: Multidecadal Amplitude Modulation and CO2 Sensitivity
Publisher: American Meteorological Society
Abstract: An analysis is presented of simulated ENSO phenomena occurring in three 1000-yr experiments with a low-resolution (R15) global coupled ocean?atmosphere GCM. Although the model ENSO is much weaker than the observed one, the ...