User's Guide to the Complex Terrain Dispersion Model Plus Algorithms for UnstableSituations (CTDMPLUS): Volume 2. The Screening Mode (CTSCREEN)

摘要

The EPA's Technology-Transfer Workgroup has developed a screening version(denoted as CTSCREEN) of the Complex Terrain Dispersion Model, CTDMPLUS. CTSCREEN uses an array of predetermined meteorological conditions to model the user supplied source-terrain configuration. CTSCREEN yields estimates of maximum 1-h, 3-h, 24-h, and annual impacts that are conservative with respect to CTDMPLUS estimates using a full year of on-site data. In comparison with other complex terrain screening models, CTSCREEN provides estimates that most consistently reflect those of CTDMPLUS.