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RISTransient Growth of Thermodynamically Coupled Variations in the Tropics under an Equatorially Symmetric Mean State
Publisher: American Meteorological Society
Abstract: The dynamics of thermodynamically coupled disturbances in the tropics that bear a strong resemblance to observed meridional mode variations are investigated using two simple linear coupled models. Both models involve an ...
Analysis of the Atlantic Meridional Mode Using Linear Inverse Modeling: Seasonality and Regional Influences
Publisher: American Meteorological Society
Abstract: redictability and variability of the tropical Atlantic Meridional Mode (AMM) is investigated using linear inverse modeling (LIM). Analysis of the LIM using an ?energy? norm identifies two optimal structures that experience ...
The Contribution of the Interannual ENSO Cycle to the Spatial Pattern of Decadal ENSO-Like Variability
Publisher: American Meteorological Society
Abstract: A defining feature of Pacific decadal ENSO-like variability is the similarity between its spatial expression in sea surface temperature (SST) and the spatial structure of interannual ENSO variability. This similarity may ...
Extratropical Forcing of Tropical Atlantic Variability during Boreal Summer and Fall
Publisher: American Meteorological Society
Abstract: he connection between midlatitude Atlantic sea surface temperature (SST) anomalies and tropical SST variations during boreal summer and fall are investigated using a coupled general circulation model (GCM). This research ...
Variability of the Atlantic Meridional Mode during the Atlantic Hurricane Season
Publisher: American Meteorological Society
Abstract: An observational and modeling study is conducted to investigate the structure of the Atlantic Meridional Mode (AMM) during the Atlantic hurricane season, and the relationship between AMM-related SST anomalies and environmental ...
An Analytical Framework for Understanding Tropical Meridional Modes
Publisher: American Meteorological Society
Abstract: AbstractA theoretical framework is developed for understanding the transient growth and propagation characteristics of thermodynamically coupled, meridional mode?like structures in the tropics. The model consists of a ...
Midlatitude Excitation of Tropical Variability in the Pacific: The Role of Thermodynamic Coupling and Seasonality
Publisher: American Meteorological Society
Abstract: A set of ensemble model experiments using the National Center for Atmospheric Research Community Atmospheric Model version 3.0 (CAM3) is run to investigate the tropical Pacific response to midlatitude atmospheric variability ...
A More General Framework for Understanding Atlantic Hurricane Variability and Trends
Publisher: American Meteorological Society
Abstract: Atlantic hurricane variability on decadal and interannual time scales is reconsidered in a framework based on a leading mode of coupled ocean?atmosphere variability known as the Atlantic meridional mode (AMM). It is shown ...
Analogous Pacific and Atlantic Meridional Modes of Tropical Atmosphere–Ocean Variability
Publisher: American Meteorological Society
Abstract: From observational analysis a Pacific mode of variability in the intertropical convergence zone (ITCZ)/cold tongue region is identified that possesses characteristics and interpretation similar to the dominant ?meridional? ...
Statistical Downscaling of Daily Wind Speed Variations
Publisher: American Meteorological Society
Abstract: his study presents the development of a method to statistically downscale daily wind speed variations in an extended Great Lakes region. A probabilistic approach is used, predicting a daily-varying probability density ...