Operational chemical weather forecasting with the ECCC  online Regional Air Quality Deterministic Prediction  System version 023 (RAQDPS023) – Part 2: Multi-year  prospective and retrospective performance evaluation

Moran, Michael D.; Lupu, Alexandru; Savic-Jovcic, Verica; Zhang, Junhua; Zheng, Qiong; Boutzis, Elisa I.; Mashayekhi, Rabab; Stroud, Craig A.; Ménard, Sylvain; Chen, Jack; Menelaou, Konstantinos; Munoz-Alpizar, Rodrigo; Kornic, Dragana; Manseau, Patrick M.

doi:10.5194/gmd-19-4205-2026

Articles | Volume 19, issue 10

https://doi.org/10.5194/gmd-19-4205-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-19-4205-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 10

Model evaluation paper

|

20 May 2026

Model evaluation paper |

| 20 May 2026

Operational chemical weather forecasting with the ECCC online Regional Air Quality Deterministic Prediction System version 023 (RAQDPS023) – Part 2: Multi-year prospective and retrospective performance evaluation

Michael D. Moran, Alexandru Lupu, Verica Savic-Jovcic, Junhua Zhang, Qiong Zheng, Elisa I. Boutzis, Rabab Mashayekhi, Craig A. Stroud, Sylvain Ménard, Jack Chen, Konstantinos Menelaou, Rodrigo Munoz-Alpizar, Dragana Kornic, and Patrick M. Manseau

Viewed

Total article views: 3,442 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
1,978	1,294	170	3,442	273	319

HTML: 1,978
PDF: 1,294
XML: 170
Total: 3,442
BibTeX: 273
EndNote: 319

Views and downloads (calculated since 23 Dec 2025)

Month	HTML	PDF	XML	Total
Dec 2025	430	190	45	665
Jan 2026	491	345	30	866
Feb 2026	265	279	15	559
Mar 2026	432	332	59	823
Apr 2026	108	59	6	173
May 2026	221	85	12	318
Jun 2026	31	4	3	38

Cumulative views and downloads (calculated since 23 Dec 2025)

Month	HTML	PDF	XML	Total
Dec 2025	430	190	45	665
Jan 2026	491	345	30	866
Feb 2026	265	279	15	559
Mar 2026	432	332	59	823
Apr 2026	108	59	6	173
May 2026	221	85	12	318
Jun 2026	31	4	3	38

Viewed (geographical distribution)

Total article views: 3,442 (including HTML, PDF, and XML) Thereof 3,442 with geography defined and 0 with unknown origin.

Country	#	Views	%

1

1

Cited

Saved (final revised paper)

Latest update: 08 Jun 2026

Short summary

We present an evaluation of 6 annual runs made with the Regional Air Quality Deterministic Prediction System, an operational chemical weather forecast system for North America. Measurements used included NO₂, O₃, and PM_2.5, 8 other gas-phase species, 7 PM_2.5 species, and 3 ions in precipitation. Routine scores were augmented by many stratified analyses, and the results pointed to some model components where improvements are desirable. A companion paper provides a full description of the system.