Simple model of stratified precipitation for scavenging studies
Conference
·
OSTI ID:6845399
2BPUFF (Crawford, 1966) is a 2-D, axisymmetric Lagrangian model used for calculating scale-dependent diffusion in a frame of reference moving with the center of the cloud of released material. ADPIC (Lange, 1978) is a 3-D particle-in-cell diffusion model which uses measured winds interpolated mass-consistently to calculate trajectories. Both of these models have been very successful in calculating pollutant concentrations up to several days downwind when compared with measured concentrations. These long-range transport and diffusion models currently have crude capabilities to include precipitation scavenging based on input information on rain location and rate. The goal is to develop techniques for specifying the scavenging rate used in these models in a manner that considers more of the physical variations in the atmosphere and yet is consistent in complexity with the assumptions used in the transport and diffusion models.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6845399
- Report Number(s):
- UCRL-87553; CONF-821114-1; ON: DE82020378
- Country of Publication:
- United States
- Language:
- English
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