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RISCarbon Dioxide and Climate: Mechanisms of Changes in Cloud
Publisher: American Meteorological Society
Abstract: Changes in cloud distribution may provide a major feedback on climate change. General circulation model simulations show an upward shift of high cloud and a general reduction of free-tropospheric cloud when climate warms. ...
On Modification of Global Warming by Sulfate Aerosols
Publisher: American Meteorological Society
Abstract: There is increasing evidence that the response of climate to increasing greenhouse gases may be modified by accompanying increases in sulfate aerosols. In this study, the patterns of response in the surface climatology of ...
GCM Simulations of the Climate of 6 kyr BP: Mean Changes and Interdecadal Variability
Publisher: American Meteorological Society
Abstract: A simulation of the climate for 6 kyr BP, using the Hadley Centre's atmospheric GCM with prescribed SSTs is described. The control simulation successfully reproduces the large-scale features of the present-day climate and ...
Carbon Dioxide and Climate. The Impact of Cloud Parameterization
Publisher: American Meteorological Society
Abstract: The importance of the representation of cloud in a general circulation model is investigated by utilizing four different parameterization schemes for layer cloud in a low-resolution version of the general circulation model ...
Transient Response of the Hadley Centre Coupled Ocean-Atmosphere Model to Increasing Carbon Dioxide. Part II: Spatial and Temporal Structure of Response
Publisher: American Meteorological Society
Abstract: A high-resolution (2.75° lat ? ° 3.75° long) coupled ocean-atmosphere model has been used to simulate the transient response of climate to a gradual increase in atmospheric carbon dioxide concentrations. Although the ...
Simulated Diurnal Range and Variability of Surface Temperature in a Global Climate Model for Present and Doubled C02 Climates
Publisher: American Meteorological Society
Abstract: The variability of surface temperature simulated by a global climate model with a simple mixed-layer ocean is analyzed. The simulated diurnal and seasonal ranges of temperature are compared with observation, as is the ...
Summer Drought in Northern Midlatitudes in a Time-Dependent CO2 Climate Experiment
Publisher: American Meteorological Society
Abstract: A time-dependent climate-change experiment with a coupled ocean?atmosphere general circulation model has been used to study changes in the occurrence of drought in summer in southern Europe and central North America. In ...
Transient Climate Change in the Hadley Centre Models: The Role of Physical Processes
Publisher: American Meteorological Society
Abstract: A comparison of the response to increasing greenhouse gas concentrations of two versions of the Met Office's (Hadley Centre) coupled atmosphere?ocean model reveals differences that result in large local variations in the ...
On Surface Temperature, Greenhouse Gases, and Aerosols: Models and Observations
Publisher: American Meteorological Society
Abstract: The effect of changes in atmospheric carbon dioxide concentrations and sulphate aerosols on near-surface temperature is investigated using a version of the Hadley Centre atmospheric model coupled to a mixed layer ocean. ...
Mechanisms Determining the Atlantic Thermohaline Circulation Response to Greenhouse Gas Forcing in a Non-Flux-Adjusted Coupled Climate Model
Publisher: American Meteorological Society
Abstract: Models of the North Atlantic thermohaline circulation (THC) show a range of responses to the high-latitude warming and freshening characteristic of global warming scenarios. Most simulate a weakening of the THC, with some ...