The forecast shows contoured areas which represent the smoke concentration level relative to the initial emission value. The across-wind thickness of the plume gives an indication of wind speed. The current smoke dispersion forecasts are produced twice daily. After the city based ACCESS-C (Australian Community Climate and Earth-System Simulator) and the Australia wide ACCESS-A models are run, producing data valid for up to 48 hours into the future, HYSPLIT (Hybrid Single-Particle Lagrangian Integrated Trajectory) smoke dispersion forecasts for each state are created for burns on the following day. The forecasts are currently run from fixed source locations provided by users in each state.
Metadata ConstraintsThe authoritative (Point of truth) full version of this metadata record is under copyright, and available from [ http://www.bom.gov.au/metadata/19115/ANZCW0503900205 ]. Licence details about harvesting and derivative versions of the metadata are included there.
PurposeTo show the smoke concentration levels based on the dispersion model, Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT).
Output from HYSPLIT (ARCINFO Generate) is converted to a polygon shapefile using gen2shp. Additional information is added to the dbf using the txt2dbf utility