A new formulation of the probability density function in random walk models for atmospheric dispersion

Anne Katrine Vinther Falk; Sven-Erik Gryning

A new formulation of the probability density function in random walk models for atmospheric dispersion

Anne Katrine Vinther Falk
, Sven-Erik Gryning

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

In this model for atmospheric dispersion particles are simulated by the Langevin Equation, which is a stochastic differential equation. It uses the probability density function (PDF) of the vertical velocity fluctuations as input. The PDF is constructed as an expansion after Hermite polynomials. In several previous works where the PDF was expressed this way, further use was hampered by the fact that the PDF takes negative values for a range of velocities. This problem is overcome in the present formulation

Original language	English
Title of host publication	preprints of the 22nd NATO/CCMS International Technical Meeting on Air Pollution Modelling and its Application
Place of Publication	Clermont-Ferrand
Publisher	UFR Sciences
Publication date	1997
Pages	300-307
Publication status	Published - 1997
Event	22nd NATO/CCMS International Technical Meeting - Clermont-Ferrand, France Duration: 2 Jun 1997 → 6 Jun 1997

Conference

Conference	22nd NATO/CCMS International Technical Meeting
Country/Territory	France
City	Clermont-Ferrand
Period	02/06/1997 → 06/06/1997

OpenUrl availability

Check availability in DTU Findit

Cite this

@inproceedings{f2c38de3addf4054b0e51ea88c07f9f3,

title = "A new formulation of the probability density function in random walk models for atmospheric dispersion",

abstract = "In this model for atmospheric dispersion particles are simulated by the Langevin Equation, which is a stochastic differential equation. It uses the probability density function (PDF) of the vertical velocity fluctuations as input. The PDF is constructed as an expansion after Hermite polynomials. In several previous works where the PDF was expressed this way, further use was hampered by the fact that the PDF takes negative values for a range of velocities. This problem is overcome in the present formulation",

keywords = "Vindenergi og atmosf{\ae}riske processer",

author = "Falk, \{Anne Katrine Vinther\} and Sven-Erik Gryning",

year = "1997",

language = "English",

pages = "300--307",

booktitle = "preprints of the 22nd NATO/CCMS International Technical Meeting on Air Pollution Modelling and its Application",

publisher = "UFR Sciences",

note = "22nd NATO/CCMS International Technical Meeting ; Conference date: 02-06-1997 Through 06-06-1997",

}

Falk, AKV & Gryning, S-E 1997, A new formulation of the probability density function in random walk models for atmospheric dispersion. in preprints of the 22nd NATO/CCMS International Technical Meeting on Air Pollution Modelling and its Application. UFR Sciences, Clermont-Ferrand, pp. 300-307, 22nd NATO/CCMS International Technical Meeting, Clermont-Ferrand, France, 02/06/1997.

A new formulation of the probability density function in random walk models for atmospheric dispersion. / Falk, Anne Katrine Vinther; Gryning, Sven-Erik.
preprints of the 22nd NATO/CCMS International Technical Meeting on Air Pollution Modelling and its Application. Clermont-Ferrand: UFR Sciences, 1997. p. 300-307.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - A new formulation of the probability density function in random walk models for atmospheric dispersion

AU - Falk, Anne Katrine Vinther

AU - Gryning, Sven-Erik

PY - 1997

Y1 - 1997

N2 - In this model for atmospheric dispersion particles are simulated by the Langevin Equation, which is a stochastic differential equation. It uses the probability density function (PDF) of the vertical velocity fluctuations as input. The PDF is constructed as an expansion after Hermite polynomials. In several previous works where the PDF was expressed this way, further use was hampered by the fact that the PDF takes negative values for a range of velocities. This problem is overcome in the present formulation

AB - In this model for atmospheric dispersion particles are simulated by the Langevin Equation, which is a stochastic differential equation. It uses the probability density function (PDF) of the vertical velocity fluctuations as input. The PDF is constructed as an expansion after Hermite polynomials. In several previous works where the PDF was expressed this way, further use was hampered by the fact that the PDF takes negative values for a range of velocities. This problem is overcome in the present formulation

KW - Vindenergi og atmosfæriske processer

M3 - Article in proceedings

SP - 300

EP - 307

BT - preprints of the 22nd NATO/CCMS International Technical Meeting on Air Pollution Modelling and its Application

PB - UFR Sciences

CY - Clermont-Ferrand

T2 - 22nd NATO/CCMS International Technical Meeting

Y2 - 2 June 1997 through 6 June 1997

ER -

A new formulation of the probability density function in random walk models for atmospheric dispersion

Abstract

Conference

OpenUrl availability

Fingerprint

Cite this