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RISSensitivity of Climate Drift to Atmospheric Physical Parameterizations in a Coupled Ocean–Atmosphere General Circulation Model
Publisher: American Meteorological Society
Abstract: Sensitivity of climate drift to selected convection and cloudiness parameters is investigated with a coupled ocean?atmosphere general circulation model. The dependence of the coupled model climatology upon parameterizations ...
Oceanic Forcing of the Wintertime Low-Frequency Atmospheric Variability in the North Atlantic European Sector: A Study with the ARPEGE Model
Publisher: American Meteorological Society
Abstract: The relationship between global sea surface temperatures (SSTs) and the North Atlantic?Europe (NAE) atmospheric circulation is investigated using an ensemble of eight simulations with the ARPEGE atmospheric global circulation ...
Toward a New Estimate of “Time of Emergence” of Anthropogenic Warming: Insights from Dynamical Adjustment and a Large Initial-Condition Model Ensemble
Publisher: American Meteorological Society
Abstract: AbstractTime of emergence of anthropogenic climate change is a crucial metric in risk assessments surrounding future climate predictions. However, internal climate variability impairs the ability to make accurate statements ...
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 ...
North Atlantic Winter Climate Regimes: Spatial Asymmetry, Stationarity with Time, and Oceanic Forcing
Publisher: American Meteorological Society
Abstract: The observed low-frequency winter atmospheric variability of the North Atlantic?European region and its relationship with global surface oceanic conditions is investigated based on the climate and weather regimes paradigm. ...
Near-Surface Salinity as Nature’s Rain Gauge to Detect Human Influence on the Tropical Water Cycle
Publisher: American Meteorological Society
Abstract: hanges in the global water cycle are expected as a result of anthropogenic climate change, but large uncertainties exist in how these changes will be manifest regionally. This is especially the case over the tropical oceans, ...
Summer Sea Surface Temperature Conditions in the North Atlantic and Their Impact upon the Atmospheric Circulation in Early Winter
Publisher: American Meteorological Society
Abstract: The origin of the so-called summer North Atlantic ?Horseshoe? (HS) sea surface temperature (SST) mode of variability, which is statistically linked to the next winter's North Atlantic Oscillation (NAO), is investigated ...
Simulation of Late-Twenty-First-Century Changes in Wintertime Atmospheric Circulation over Europe Due to Anthropogenic Causes
Publisher: American Meteorological Society
Abstract: Evidence is presented, based on an ensemble of climate change scenarios performed with a global general circulation model of the atmosphere with high horizontal resolution over Europe, to suggest that the end-of-century ...
Interaction between Near-Annual and ENSO Modes in a CGCM Simulation: Role of the Equatorial Background Mean State
Publisher: American Meteorological Society
Abstract: A 260-yr-long coupled general circulation model (CGCM) simulation is used to investigate the interaction between ENSO mode and near-annual variability and its sensitivity to the equatorial background mean stratification ...