Search
Now showing items 1-8 of 8
Climate Sensitivity of the CSIRO GCM: Effect of Cloud Modeling Assumptions
Publisher: American Meteorological Society
Abstract: The climate sensitivity of the CSIRO Global Climate Model is investigated using uniform sea surface temperature perturbation experiments. One experiment (denoted DIAG) uses a diagnostic treatment of clouds, with fixed cloud ...
Sensitivity of the First Indirect Aerosol Effect to an Increase of Cloud Droplet Spectral Dispersion with Droplet Number Concentration
Publisher: American Meteorological Society
Abstract: Observations show that an increase in anthropogenic aerosols leads to concurrent increases in the cloud droplet concentration and the relative dispersion of the cloud droplet spectrum, other factors being equal. It has ...
Tropical Rainfall Trends and the Indirect Aerosol Effect
Publisher: American Meteorological Society
Abstract: An atmospheric global climate model coupled to a mixed layer ocean model is used to study changes in tropical rainfall due to the indirect effects of anthropogenic sulfate aerosol. The model is run to equilibrium for ...
Indirect Aerosol Forcing, Quasi Forcing, and Climate Response
Publisher: American Meteorological Society
Abstract: The component of the indirect aerosol effect related to changes in precipitation efficiency (the second indirect or Albrecht effect) is presently evaluated in climate models by taking the difference in net irradiance between ...
A Scheme for Calculation of the Liquid Fraction in Mixed-Phase Stratiform Clouds in Large-Scale Models
Publisher: American Meteorological Society
Abstract: A scheme for calculation of the liquid fraction fl in mixed-phase stratiform clouds has been developed for use in large-scale models. An advantage of the scheme, compared to the interpolation in temperature that is typically ...
Variability and Trend of North West Australia Rainfall: Observations and Coupled Climate Modeling
Publisher: American Meteorological Society
Abstract: Since 1950, there has been an increase in rainfall over North West Australia (NWA), occurring mainly during the Southern Hemisphere (SH) summer season. A recent study using twentieth-century multimember ensemble simulations ...
Why Does Aerosol Forcing Control Historical Global-Mean Surface Temperature Change in CMIP5 Models?
Publisher: American Meteorological Society
Abstract: inear regression is used to examine the relationship between simulated changes in historical global-mean surface temperature (GMST) and global-mean aerosol effective radiative forcing (ERF) in 14 climate models from CMIP5. ...
Declining Aerosols in CMIP5 Projections: Effects on Atmospheric Temperature Structure and Midlatitude Jets
Publisher: American Meteorological Society
Abstract: he effects of declining anthropogenic aerosols in representative concentration pathway 4.5 (RCP4.5) are assessed in four models from phase 5 the Coupled Model Intercomparison Project (CMIP5), with a focus on annual, ...