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Title: MESOI: an interactive Lagrangian trajectory puff diffusion model

Technical Report ·
DOI:https://doi.org/10.2172/5181329· OSTI ID:5181329

MESOI is an interactive Lagrangian trajectory puff diffusion model based on an earlier model by Start and Wendell at the Air Resources Laboratory Field Office at Idaho Falls, Idaho. Puff trajectories are determined using spatially and temporally varying wind fields. Diffusion in the puffs is computed as a function of distance traveled and atmospheric stability. Exposures are computed at nodes of a 31 by 31 grid. There is also provision for interpolation of short term exposures at off-grid locations. This report discusses: the theoretical bases of the model, the numerical approach used in the model, and the sensitivity and accuracy of the model. It contains a description of the computer program and a listing of the code. MESOI is written in FORTRAN. A companion report (Athey, Allwine and Ramsdell, 1981) contains a user's guide to MESOI and documents utility programs that maintain the data files needed by the model.

Research Organization:
Battelle Pacific Northwest Labs., Richland, WA (United States)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
5181329
Report Number(s):
PNL-3998; ON: DE82007371
Resource Relation:
Other Information: Portions of this report are illegible
Country of Publication:
United States
Language:
English