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RISMechanism of Interdecadal Thermohaline Circulation Variability in a Coupled Ocean–Atmosphere GCM
Publisher: American Meteorological Society
Abstract: Interdecadal variability of the Atlantic thermohaline circulation (THC) is studied in the third version of the Hadley Centre global coupled atmosphere?ocean sea-ice general circulation model (HadCM3). A diagnostic approach ...
Enhancement of ENSO Variability by a Weakened Atlantic Thermohaline Circulation in a Coupled GCM
Publisher: American Meteorological Society
Abstract: A coupled ocean?atmosphere general circulation model is used to investigate the modulation of El Niño?Southern Oscillation (ENSO) variability due to a weakened Atlantic thermohaline circulation (THC). The THC weakening is ...
Recent Trends in Summer Atmospheric Circulation in the North Atlantic/European Region: Is There a Role for Anthropogenic Aerosols?
Publisher: American Meteorological Society
Climate Response to Basin-Scale Warming and Cooling of the North Atlantic Ocean
Publisher: American Meteorological Society
Abstract: Using experiments with an atmospheric general circulation model, the climate impacts of a basin-scale warming or cooling of the North Atlantic Ocean are investigated. Multidecadal fluctuations with this pattern were observed ...
Understanding Land–Sea Warming Contrast in Response to Increasing Greenhouse Gases. Part I: Transient Adjustment
Publisher: American Meteorological Society
Abstract: Climate model simulations consistently show that surface temperature over land increases more rapidly than over sea in response to greenhouse gas forcing. The enhanced warming over land is not simply a transient effect ...
Mechanisms Linking Volcanic Aerosols to the Atlantic Meridional Overturning Circulation
Publisher: American Meteorological Society
Abstract: his study examines the sensitivity of the climate system to volcanic aerosol forcing in the third climate configuration of the Met Office Unified Model (HadCM3). The main test case was based on the 1880s when there were ...
The Impacts of European and Asian Anthropogenic Sulfur Dioxide Emissions on Sahel Rainfall
Publisher: American Meteorological Society
Abstract: n this study, the atmospheric component of a state-of-the-art climate model [the Hadley Centre Global Environment Model, version 2?Earth System (HadGEM2-ES)] has been used to investigate the impacts of regional anthropogenic ...
An Anatomy of the Cooling of the North Atlantic Ocean in the 1960s and 1970s
Publisher: American Meteorological Society
Abstract: n the 1960s and early 1970s, sea surface temperatures in the North Atlantic Ocean cooled rapidly. There is still considerable uncertainty about the causes of this event, although various mechanisms have been proposed. In ...
Atmospheric Impact of Arctic Sea Ice Loss in a Coupled Ocean–Atmosphere Simulation
Publisher: American Meteorological Society
Abstract: he atmospheric response to an idealized decline in Arctic sea ice is investigated in a novel fully coupled climate model experiment. In this experiment two ensembles of single-year model integrations are performed starting ...
High-Resolution Stratospheric Tracer Fields Estimated from Satellite Observations Using Lagrangian Trajectory Calculations
Publisher: American Meteorological Society
Abstract: A technique is introduced by which high-resolution tracer fields may be constructed from low-resolution satellite observations. The technique relies upon the continual cascade of tracer variance from large to small scales ...