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RISOn the Cause of the Relative Greenhouse Strength of Gases such as the Halocarbons
Publisher: American Meteorological Society
Abstract: This note examines some of the factors important in determining the large radiative impact, relative to carbon dioxide, of increased concentrations of gases in the optically thin limit (such as the halocarbons at their ...
Comments on “Contrails, Cirrus Trends, and Climate”
Publisher: American Meteorological Society
A One-Dimensional Study of Possible Cirrus Cloud Feedbacks
Publisher: American Meteorological Society
Abstract: Feedbacks involving cirrus clouds may Play an important role in modulating the response of the climate system to external forcing. A standard radiative-convective model with high vertical resolution (10-mb grid spacing in ...
The Effects of Changes in HITRAN and Uncertainties in the Spectroscopy on Infrared Irradiance Calculations
Publisher: American Meteorological Society
Abstract: Atmospheric radiative transfer calculations are susceptible to a number of uncertainties, such as in the assumed atmospheric composition, cloudiness, and spectroscopy. Using both line-by-line and narrowband schemes the ...
Parameterization of Ice Cloud Radiative Properties and Its Application to the Potential Climatic Importance of Mixed-Phase Clouds
Publisher: American Meteorological Society
Abstract: It is often assumed, in modeling and radiation budget simulation, that clouds below the cirrus level are entirely in the liquid phase. There is substantive evidence from observations that low and middle clouds are often ...
A GCM Study of Volcanic Eruptions as a Cause of Increased Stratospheric Water Vapor
Publisher: American Meteorological Society
Abstract: Recent general circulation model (GCM) experiments have shown that idealized climatic perturbations that increase the temperature of the tropical tropopause region can cause larger than expected surface temperature increases. ...
The Climate Impact of Past Changes in Halocarbons and CO2 in the Tropical UTLS Region
Publisher: American Meteorological Society
Abstract: chemistry?climate model coupled to an ocean model is used to compare the climate impact of past (1960?2010) changes in concentrations of halocarbons with those of CO2 in the tropical upper troposphere and lower stratosphere ...
The Circulation Response to Idealized Changes in Stratospheric Water Vapor
Publisher: American Meteorological Society
Abstract: bservations show that stratospheric water vapor (SWV) concentrations increased by ~30% between 1980 and 2000. SWV has also been projected to increase by up to a factor of 2 over the twenty-first century. Trends in SWV ...
Design and Analysis of Climate Model Experiments for the Efficient Estimation of Anthropogenic Signals
Publisher: American Meteorological Society
Abstract: Presented herein is an experimental design that allows the effects of several radiative forcing factors on climate to be estimated as precisely as possible from a limited suite of atmosphere-only general circulation model ...
Design and Analysis of Climate Model Experiments for the Efficient Estimation of Anthropogenic Signals
Publisher: American Meteorological Society
Abstract: Presented herein is an experimental design that allows the effects of several radiative forcing factors on climate to be estimated as precisely as possible from a limited suite of atmosphere-only general circulation model ...