Ariel Stein


NOAA’s HYSPLIT atmospheric transport and dispersion modeling system: history, applications, and new developments.

What Meteo Colloquium GR UG Homepage
When Oct 25, 2017
from 03:30 pm to 04:30 pm
Where 112 Walker Building
Contact Name David Stensrud
Contact email
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Ariel Stein NOAA ARL

HYSPLIT, developed by NOAA’s Air Resources Laboratory, is one of the most widely used models for atmospheric trajectory and dispersion calculations. We present the model’s historical evolution over the last 30 years from simple hand drawn back trajectories to very sophisticated computations of transport, mixing, chemical transformation, and deposition of pollutants and hazardous materials. We highlight applications of the HYSPLIT modeling system, including the simulation of atmospheric tracer release experiments, radionuclides, smoke originated from wild fires, volcanic ash, mercury, and wind-blown dust. In addition, we present the most recent model updates including in-line coupling with the WRF meteorological model, dispersion ensembles, and source attribution using minimization of a cost function.