Search
CSV
RISPossible Aerosol Effects on Ice Clouds via Contact Nucleation
Publisher: American Meteorological Society
Abstract: The indirect effect of aerosols on water clouds, whereby aerosol particles change cloud optical properties, is caused by aerosol-induced changes of the size and number of cloud droplets. This affects the lifetime of the ...
Constraining Precipitation Susceptibility of Warm-, Ice-, and Mixed-Phase Clouds with Microphysical Equations
Publisher: American Meteorological Society
Abstract: he strength of the effective anthropogenic climate forcing from aerosol?cloud interactions is related to the susceptibility of precipitation to aerosol effects. Precipitation susceptibility d lnP/d lnN has been proposed ...
Sensitivity Studies of Aerosol–Cloud Interactions in Mixed-Phase Orographic Precipitation
Publisher: American Meteorological Society
Abstract: Anthropogenic aerosols serve as a source of both cloud condensation nuclei (CCN) and ice nuclei (IN) and affect microphysical properties of clouds. Increasing aerosol number concentration is assumed to retard the cloud ...
Using MODIS and AERONET to Determine GCM Aerosol Size
Publisher: American Meteorological Society
Abstract: Aerosol size is still a poorly constrained quantity in general circulation models (GCMs). By using the modal radii of the coarse and fine mode retrieved from 103 stations in the Aerosol Robotic Network (AERONET) and the ...
GCM Aerosol Radiative Effects Using Geographically Varying Aerosol Sizes Deduced from AERONET Measurements
Publisher: American Meteorological Society
Abstract: Aerosol optical properties, and hence the direct radiative effects, are largely determined by the assumed aerosol size distribution. In order to relax the fixed aerosol size constraint commonly used in general circulation ...
Sensitivity Studies of the Role of Aerosols in Warm-Phase Orographic Precipitation in Different Dynamical Flow Regimes
Publisher: American Meteorological Society
Abstract: Aerosols serve as a source of cloud condensation nuclei (CCN) and influence the microphysical properties of clouds. In the case of orographic clouds, it is suspected that aerosol?cloud interactions reduce the amount of ...
Precipitation Susceptibility and Aerosol Buffering of Warm- and Mixed-Phase Orographic Clouds in Idealized Simulations
Publisher: American Meteorological Society
Abstract: AbstractThe sensitivity of warm- and mixed-phase orographic precipitation to the aerosol background with simultaneous changes in the abundance of cloud condensation nuclei and ice nucleating particles is explored in an ...
A Comparison of Surface Observations and ECHAM4-GCM Experiments and Its Relevance to the Indirect Aerosol Effect
Publisher: American Meteorological Society
Abstract: The observations of solar irradiance at the surface, total cloud cover, and precipitation rates have been used to evaluate aerosol?cloud interactions in a GCM. Records from Germany and the United States were available for ...
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 ...
Formation and Development of Orographic Mixed-Phase Clouds
Publisher: American Meteorological Society
Abstract: AbstractOrographic forcing can stabilize mixed-phase clouds (MPCs), which are thermodynamically unstable owing to the different saturation vapor pressure over liquid water and ice. This study presents simulations of MPCs ...