Experience in using Models of Pollutant Dispersal in an Urban Environment

Autor:	M. N. Katkova, D. A. Pripachkin, A. I. Kryshev, S. V. Panchenko
Rok vydání:	2020
Předmět:	Pollutant Rose (mathematics) Atmospheric sciences Set (abstract data type) symbols.namesake Nuclear Energy and Engineering symbols Biological dispersal Environmental science Point (geometry) Gaussian network model Physics::Atmospheric and Oceanic Physics Order of magnitude Urban environment
Zdroj:	Atomic Energy. 128:305-311
ISSN:	1573-8205 1063-4258
DOI:	10.1007/s10512-020-00692-6
Popis:	The experience gained in validating calculations of the ground-surface concentration of a pollutant injected into an urban environment from a stationary high-altitude source is presented. A Gaussian model using the average annual emission, the characteristic parameters of the source, and a real annual wind rose, as well as a Lagrangian-type model, in which the input parameters were the average daily emission and hourly meteorological parameters, are examined. The computational results were compared with the measured values of the concentration of 131I. It is shown that when using average annual data the uncertainty of the estimates at a particular point located 4–6 km from the source сan reach 4-fold. For emissions which are not protracted (up to one day), even given a full-fledge set of data on the meteorological parameters, the uncertainty of the estimated average daily concentration at the same point can reach one order of magnitude.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0afd6683971c8d2cf1e2cf003a6fefcf https://doi.org/10.1007/s10512-020-00692-6 Zobrazit plný text záznamu Full text from SpringerLink