Analysis of the impact of inhomogeneous emissions in the Operational Street Pollution Model (OSPM)

Ottosen, T.-B.; Kakosimos, K. E.; Johansson, C.; Hertel, O.; Brandt, J.; Skov, H.; Berkowicz, R.; Ellermann, T.; Jensen, S. S.; Ketzel, M.

doi:10.5194/gmd-8-3231-2015

Articles | Volume 8, issue 10

https://doi.org/10.5194/gmd-8-3231-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/gmd-8-3231-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 10

Development and technical paper

|

13 Oct 2015

Development and technical paper |

| 13 Oct 2015

Analysis of the impact of inhomogeneous emissions in the Operational Street Pollution Model (OSPM)

T.-B. Ottosen, K. E. Kakosimos, C. Johansson, O. Hertel, J. Brandt, H. Skov, R. Berkowicz, T. Ellermann, S. S. Jensen, and M. Ketzel

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May 2015	11	6	0	17
Jun 2015	21	15	0	36
Jul 2015	15	10	1	26
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Oct 2015	87	42	9	138
Nov 2015	24	19	0	43
Dec 2015	11	11	0	22
Jan 2016	31	10	1	42
Feb 2016	21	4	1	26
Mar 2016	17	6	0	23
Apr 2016	4	3	0	7
May 2016	14	12	1	27
Jun 2016	13	7	6	26
Jul 2016	11	5	5	21
Aug 2016	11	7	1	19
Sep 2016	10	4	2	16
Oct 2016	17	6	4	27
Nov 2016	12	7	3	22
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Jan 2017	24	9	3	36
Feb 2017	21	7	1	29
Mar 2017	26	11	4	41
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May 2017	41	17	8	66
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Jul 2017	21	7	1	29
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Dec 2023	49	10	2	61
Jan 2024	41	4	2	47
Feb 2024	35	7	0	42
Mar 2024	49	15	1	65
Apr 2024	52	11	6	69
May 2024	10	8	1	19
Jun 2024	43	8	2	53
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Aug 2024	23	3	2	28
Sep 2024	14	7	0	21
Oct 2024	12	10	1	23
Nov 2024	10	7	3	20
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Jan 2025	20	12	0	32
Feb 2025	35	10	1	46
Mar 2025	14	8	0	22
Apr 2025	18	14	0	32
May 2025	21	8	1	30
Jun 2025	30	12	1	43
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Aug 2025	17	23	1	41
Sep 2025	28	13	2	43
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Dec 2025	3	0	3

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Mar 2015	24	10	0	34
Apr 2015	36	21	4	61
May 2015	11	6	0	17
Jun 2015	21	15	0	36
Jul 2015	15	10	1	26
Aug 2015	6	5	0	11
Sep 2015	20	6	1	27
Oct 2015	87	42	9	138
Nov 2015	24	19	0	43
Dec 2015	11	11	0	22
Jan 2016	31	10	1	42
Feb 2016	21	4	1	26
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Apr 2016	4	3	0	7
May 2016	14	12	1	27
Jun 2016	13	7	6	26
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Nov 2016	12	7	3	22
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Feb 2017	21	7	1	29
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Sep 2025	28	13	2	43
Oct 2025	19	16	2	37
Nov 2025	31	26	4	61
Dec 2025	3	0	3

Latest update: 06 Dec 2025

Short summary

Semi-parameterised street canyon models are popular due to their speed and low input requirements. One often-used assumption is that emissions are homogeneously distributed in the entire length and width of the street. It is thus the aim of the present study to analyse the impact of this assumption by implementing an inhomogeneous emission geometry scheme and validating it. The results show an improved performance, however, confounded by challenges in estimating the emissions accurately.