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An Overview of the HYSPLIT_4 Modelling System for Trajectories, Dispersion, and Deposition
The HYSPLIT_4 (HYbrid Single-Particle Lagrangian Integrated Trajectory) model is designed for quick response to atmospheric emergencies, diagnostic case studies, or climatological analyses using
NOAA’s HYSPLIT Atmospheric Transport and Dispersion Modeling System
AbstractThe Hybrid Single-Particle Lagrangian Integrated Trajectory model (HYSPLIT), developed by NOAA’s Air Resources Laboratory, is one of the most widely used models for atmospheric trajectory and
Root mean square error (RMSE) or mean absolute error (MAE)? – Arguments against avoiding RMSE in the literature
Abstract. Both the root mean square error (RMSE) and the mean absolute error (MAE) are regularly employed in model evaluation studies. Willmott and Matsuura (2005) have suggested that the RMSE is not
NOAA Technical Memorandum ERL ARL-224 DESCRIPTION OF THE HYSPLIT_4 MODELING SYSTEM
The HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) model is a complete system for computing simple trajectories to complex dispersion and deposition simulations using either puff
TrajStat: GIS-based software that uses various trajectory statistical analysis methods to identify potential sources from long-term air pollution measurement data
TLDR
Using these methods, the geographic information system (GIS) based software, TrajStat, was developed to view, query, and cluster the trajectories and compute the potential source contribution function (PSCF) and concentration weighted trajectory (CWT) analyses when measurement data are included.
Root mean square error (RMSE) or mean absolute error (MAE)
TLDR
It is demonstrated that the RMSE is not ambiguous in its meaning, contrary to what was claimed by Willmott et al. (2009), and is more appropriate to represent model performance than the MAE when the error distribution is expected to be Gaussian.
Estimating PM10 air concentrations from dust storms in Iraq, Kuwait and Saudi Arabia
Abstract A model for the emission of PM10 dust has been constructed using the concept of a threshold friction velocity which is dependent on surface roughness. Surface roughness in turn was
Evaluation of an ensemble dispersion calculation
Abstract A Lagrangian transport and dispersion model was modified to generate multiple simulations from a single meteorological dataset. Each member of the simulation was computed by assuming a
Detailed source term estimation of the atmospheric release for the Fukushima Daiichi Nuclear Power Station accident by coupling simulations of an atmospheric dispersion model with an improved
Abstract. Temporal variations in the amount of radionuclides released into the atmosphere during the Fukushima Daiichi Nuclear Power Station (FNPS1) accident and their atmospheric and marine
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