BEU, C.2021-09-062021-09-06BEU, C. Atmospheric dispersion comparative study between a typical and a disturbed PBL using a doppler lidar. In: SP SCHOOL OF ADVANCED SCIENCE ON ATMOSPHERIC AEROSOLS, July 22 - August 2, 2019, São Paulo, SP. <b>Abstract...</b> São Paulo, SP: Instituto de Física - USP, 2019. p. 73-73. Disponível em: http://repositorio.ipen.br/handle/123456789/32214.http://repositorio.ipen.br/handle/123456789/32214An atmospheric dispersion study was conducted for 2 different synoptical conditions for a hypotetical nuclear accident: the first is a pre-frontal condition with a typical Planetary Boundary Layer (PBL) and the second is a disturbed PBL due to a synoptic though. The site is a complex terrain area (Ipero - Brazil), where the topography modulates the circulation and the Low Level Jet (LLJ) is a common feature of the PBL. For one year a doppler lidar retrieved the wind vertical profile at Ipero, allowing to evaluate datasets that can be used as input data for the Atmospheric Transport and Dispersion Models (ATDM). Of the 3 datasets evaluated, only GDAS reproduced the LLJ and was chosen for running the HYSPLIT4 ATDM experiments.73-73openAccessResumo de eventos científicos