Details
| Original language | English |
|---|---|
| Pages (from-to) | 307-314 |
| Number of pages | 8 |
| Journal | Meteorologische Zeitschrift |
| Volume | 10 |
| Issue number | 4 |
| Publication status | Published - 15 Oct 2001 |
Abstract
A coupled meteorology-dispersion model system is used to study the dispersion of air pollutants over one continuous year. While wind and turbulence are calculated with a one-dimensional time dependent model, the time evolution of air pollutants is calculated three-dimensional. The results of the long term run of the meteorological model have been verified against surface observations and show a very good agreement in the frequency distributions as well as in time evolution. Several dispersion calculations over one year with different source characteristics and model assumptions have been carried out with the following main findings. For a realistic simulation of limit values and alert thresholds the knowledge of the time dependency of the emission is essential. Steady state dispersion calculations for specific times instead of the one year continuous run results in large differences in concentration patterns especially for elevated sources.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Atmospheric Science
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In: Meteorologische Zeitschrift, Vol. 10, No. 4, 15.10.2001, p. 307-314.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - On the applicability of a numerical model system for calculating new European air pollution measures
AU - Gross, Günter
PY - 2001/10/15
Y1 - 2001/10/15
N2 - A coupled meteorology-dispersion model system is used to study the dispersion of air pollutants over one continuous year. While wind and turbulence are calculated with a one-dimensional time dependent model, the time evolution of air pollutants is calculated three-dimensional. The results of the long term run of the meteorological model have been verified against surface observations and show a very good agreement in the frequency distributions as well as in time evolution. Several dispersion calculations over one year with different source characteristics and model assumptions have been carried out with the following main findings. For a realistic simulation of limit values and alert thresholds the knowledge of the time dependency of the emission is essential. Steady state dispersion calculations for specific times instead of the one year continuous run results in large differences in concentration patterns especially for elevated sources.
AB - A coupled meteorology-dispersion model system is used to study the dispersion of air pollutants over one continuous year. While wind and turbulence are calculated with a one-dimensional time dependent model, the time evolution of air pollutants is calculated three-dimensional. The results of the long term run of the meteorological model have been verified against surface observations and show a very good agreement in the frequency distributions as well as in time evolution. Several dispersion calculations over one year with different source characteristics and model assumptions have been carried out with the following main findings. For a realistic simulation of limit values and alert thresholds the knowledge of the time dependency of the emission is essential. Steady state dispersion calculations for specific times instead of the one year continuous run results in large differences in concentration patterns especially for elevated sources.
UR - http://www.scopus.com/inward/record.url?scp=0034783361&partnerID=8YFLogxK
U2 - 10.1127/0941-2948/2001/0010-0307
DO - 10.1127/0941-2948/2001/0010-0307
M3 - Article
AN - SCOPUS:0034783361
VL - 10
SP - 307
EP - 314
JO - Meteorologische Zeitschrift
JF - Meteorologische Zeitschrift
SN - 0941-2948
IS - 4
ER -