Formulation of the Lagrangian particle model LAPMOD and its evaluation against Kincaid SF6 and SO2 datasets

Incorporation of Numerical Plume Rise Algorithms in the Lagrangian Particle Model LAPMOD and Validation against the Indianapolis and Kincaid Datasets

“…Since computational particles represent the pollutants as gas or particulate, deposition and gravitational settling can also be taken into account.Lagrangian particle models often require: (1) a large number of particles to obtain satisfactory resolution and statistically-sound results; and (2) a short time interval to numerically integrate the equation of motion of the particles. The computational resources commonly available nowadays make these models suitable for implementations oriented both to real time applications (e.g., 24-h forecasting), and to simulate long periods (e.g., months or years of emission from a source).One of the available, peer-reviewed Lagrangian particle models is LAPMOD [4]. LAPMOD is a freely-available open-source model that is interfaced to the CALMET meteorological preprocessor [5] of the CALPUFF modeling system [2].…”

“…LAPMOD is also capable of using the AERMOD meteorological input files via its LAPMET preprocessor. The theoretical formulation of the LAPMOD model and its validation in rural environment against the Kincaid SF 6 and SO 2 datasets [6,7] have been described in a previous paper [4].A correct description of the plume rise is fundamental in atmospheric dispersion models. Once a plume is emitted by a stack into the atmosphere, three different phases may be individuated while it rises in the atmosphere (e.g., [8]).…”

“…They do not require simplification assumptions but need more computational resources than the analytical and semi-empirical solutions. These algorithms do not require constant meteorological variables; both wind and temperature may vary.This paper describes the incorporation of two numerical plume rise algorithms [12,13] in the Lagrangian particle model LAPMOD [4]. The plume rise algorithms are validated against the Indianapolis field experiment carried out in an urban environment [14].…”

“…One of the available, peer-reviewed Lagrangian particle models is LAPMOD [4]. LAPMOD is a freely-available open-source model that is interfaced to the CALMET meteorological preprocessor [5] of the CALPUFF modeling system [2].…”

“…LAPMOD is also capable of using the AERMOD meteorological input files via its LAPMET preprocessor. The theoretical formulation of the LAPMOD model and its validation in rural environment against the Kincaid SF 6 and SO 2 datasets [6,7] have been described in a previous paper [4].…”