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A New Two-Moment Bulk Stratiform Cloud Microphysics Scheme in the Community Atmosphere Model, Version 3 (CAM3). Part II: Single-Column and Global Results
Publisher: American Meteorological Society
Abstract: The global performance of a new two-moment cloud microphysics scheme for a general circulation model (GCM) is presented and evaluated relative to observations. The scheme produces reasonable representations of cloud particle ...
Parameterizing Subgrid Orographic Precipitation and Surface Cover in Climate Models
Publisher: American Meteorological Society
Abstract: Previous development of the Pacific Northwest National Laboratory?s regional climate model has focused on representing orographic precipitation using a subgrid parameterization where subgrid variations of surface elevation ...
Pacific Northwest Climate Sensitivity Simulated by a Regional Climate Model Driven by a GCM. Part II: 2×CO2 Simulations
Publisher: American Meteorological Society
Abstract: Global climate change due to increasing concentrations of greenhouse gases has stimulated numerous studies and discussions about its possible impacts on water resources. Climate scenarios generated by climate models at ...
Pacific Northwest Climate Sensitivity Simulated by a Regional Climate Model Driven by a GCM. Part I: Control Simulations
Publisher: American Meteorological Society
Abstract: A model nesting approach has been used to simulate the regional climate over the Pacific Northwest. The present-day global climatology is first simulated using the NCAR Community Climate Model (CCM3) driven by observed sea ...
Influence of Subgrid Variability on Surface Hydrology
Publisher: American Meteorological Society
Abstract: A 6.25-km resolution dataset of meteorology, vegetation type, and soil type for a domain covering a typical global climate model grid cell is used to drive a land surface physics model for a period of 6 months. Additional ...
Toward a Minimal Representation of Aerosols in Climate Models: Comparative Decomposition of Aerosol Direct, Semidirect, and Indirect Radiative Forcing
Publisher: American Meteorological Society
Abstract: he authors have decomposed the anthropogenic aerosol radiative forcing into direct contributions from each aerosol species to the planetary energy balance through absorption and scattering of solar radiation, indirect ...