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Development and testing of an aerosol-stratus cloud parameterization scheme for middle and high latitudes

Conference ·
OSTI ID:263544
; ; ;  [1]
  1. Colorado State Univ., Fort Collins, CO (United States)
The aim of this new project is to develop an aerosol/cloud microphysics parameterization of mixed-phase stratus and boundary layer clouds. Our approach is to create, test, and implement a bulk-microphysics/aerosol model using data from Atmospheric Radiation Measurement (ARM) Cloud and Radiation Testbed (CART) sites and large-eddy simulation (LES) explicit bin-resolving aerosol/microphysics models. The primary objectives of this work are twofold. First, we need the prediction of number concentrations of activated aerosol which are transferred to the droplet spectrum, so that the aerosol population directly affects the cloud formation and microphysics. Second, we plan to couple the aerosol model to the gas and aqueous-chemistry module that will drive the aerosol formation and growth. We begin by exploring the feasibility of performing cloud-resolving simulations of Arctic stratus clouds over the North Slope CART site. These simulations using Colorado State University`s regional atmospheric modeling system (RAMS) will be useful in designing the structure of the cloud-resolving model and in interpreting data acquired at the North Slope site.
Research Organization:
USDOE Office of Energy Research, Washington, DC (United States). Environmental Sciences Div.
OSTI ID:
263544
Report Number(s):
CONF-9503140--; ON: DE96010942
Country of Publication:
United States
Language:
English