The Use of Small Uncrewed Aircraft System Observations in Meteorological and Dispersion Modeling

Abstract A series of meteorological measurements with a small uncrewed aircraft system (sUAS) was collected at Oliver Springs Airport in Tennessee. The sUAS provides unique observing capable obtaining vertical profiles data within the lowest few hundred meters boundary layer. benefit simulated plume predictions by providing more accurate to dispersion model. can be used directly drive HYSPLIT simulations. When using covering domain near release and model fields larger domain, pollutants may artificially increased or decreased because inconsistencies wind between two inputs. Numerical experiments Weather Research Forecasting (WRF) Model observational nudging reveal that incorporating improves significantly affect mixing characteristics layer, especially during morning transition period planetary We conducted simulations for hypothetical releases three case study periods WRF without assimilating measurements. comparison results on 15 16 December 2021 shows is significant under weak synoptic conditions than strong influences from regional weather. Very different were introduced used. produced not just an sUAS-nudged flow but also adjusted further impacted calculation HYSPLIT.