Comparison of RIMPUFF, HYSPLIT, ADMS atmospheric dispersion model outputs, using emergency response procedures, with 85Kr measurements made in the vicinity of nuclear reprocessing plant

An Agglomerative Hierarchical Clustering with Association Rules for Discovering Climate Change Patterns

“…Other researchers have attempted to identify characteristics of ground-level ozone such as [13] who proposed a Hybrid Single Particle Lagrangian Integrated Trajectory (HySPLIT) Model in order to characterize the ground ozone concentration in the gulf of Texas. In their study they figured out that the lowest ozone concentrations are associated with trajectories that remained over the central Gulf for at least 48 hours.…”

Development toward a double focusing isotopic separator for noble gas isotope enrichment

“…Radioactive isotopes of noble gases are considered as powerful and sensitive tracers for environmental studies. In particular, 85 Kr (half‐life 10.76 years), 39 Ar (269 years) and 81 Kr (229,000 years) have been used for age dating of groundwaters and polar ice sheets, for studying transport processes in the oceans, and the atmosphere, for monitoring nuclear fuel reprocessing activities and for checking 85 Kr radioactivity in solar neutrino detector systems …”

“…Radioactive isotopes of noble gases are considered as powerful and sensitive tracers for environmental studies. In particular, 85 Kr (half-life 10.76 years), 39 Ar (269 years) and 81 Kr (229,000 years) have been used for age dating of groundwaters [1][2][3][4][5][6][7][8] and polar ice sheets, [9] for studying transport processes in the oceans, [10,11] and the atmosphere, for monitoring nuclear fuel reprocessing activities [12][13][14] and for checking 85 Kr radioactivity in solar neutrino detector systems. [15,16] Because of their chemical inertness, noble gases have the great advantage to be easily extracted with high efficiency from a large quantity of environmental samples (atmosphere, water, ice).…”

Optimizing the calculation grid for atmospheric dispersion modelling

“…ARGOS has also the RIMPUFF model as its main dispersion model. Recent intercomparisons of various ADM outputs (including RIMPUFF) with measured concentrations of radioactive noble gases reveal that they do well under steady wind conditions, but at mesoscale (several ten kilometres) distances, can underestimate peak concentrations especially also in varying wind conditions (Connan et al, 2013). RIMPUFF (the RIsø-Mesoscale-PUFF) model (Mikkelsen et al, 1984) computes how a series of puffs (with Gaussian profiles) gets advected, diffused and deposited according to local weather conditions, in a Lagrangian fashion.…”