Evolutionary Optimization of the Reduced Gas‐Phase Isoprene Oxidation Mechanism DOI Creative Commons
Arijit Chakraborty, Forwood Wiser, Siddhartha Sen

et al.

Journal of Advances in Modeling Earth Systems, Journal Year: 2025, Volume and Issue: 17(5)

Published: May 1, 2025

Abstract Atmospheric chemistry is highly complex, and significant reductions in the size of chemical mechanism are required to simulate atmosphere. One bottlenecks creating reduced models identifying optimal numerical parameters. This process has been difficult automate, often relies on manual testing. In this work, we present application particle swarm optimization (PSO) toward optimizing stoichiometric coefficients rate constants a isoprene atmospheric oxidation mechanism. Using PSO, able achieve up 28.8% improvement our error metric when compared manually tuned mechanism, leading significantly optimized final work demonstrates PSO as promising thus far underutilized tool for development.

Language: Английский

Useful Hourly Measurements of Formaldehyde at PAMS Stations in New York DOI
Oliver V. Rattigan,

P. Furdyna,

Matthew J. Hirsch

et al.

Atmospheric Pollution Research, Journal Year: 2025, Volume and Issue: unknown, P. 102568 - 102568

Published: May 1, 2025

Language: Английский

Citations

0
Insights Into Summertime Surface Ozone Formation From Diurnal Variations in Formaldehyde and Nitrogen Dioxide Along a Transect Through New York City DOI Creative Commons
Madankui Tao, Arlene M. Fiore, Alexandra Karambelas

et al.

Journal of Geophysical Research Atmospheres, Journal Year: 2025, Volume and Issue: 130(9)

Published: May 12, 2025

Abstract Estimating tropospheric ozone (O 3 ) production from observations is challenging but possible given the close coupling of O with formaldehyde (HCHO) and nitrogen dioxide (NO 2 ), two remotely sensed air pollutants. The previous reliance on once‐daily satellite overpasses highlights need to study diurnal changes surface‐column relationships. Using surface observations, Pandora spectrometer retrievals, a high‐resolution (1.33 km) quality model (WRF‐CMAQ), we characterize patterns HCHO NO at seven locations along an upwind‐downwind pathway through New York City during June–August 2018. Diurnal limited measurements suggest biogenic emission influence, while bimodal pattern indicates impact local anthropogenic oxides emissions. Details these vary by site: afternoon spike Haven (CT) traffic emissions, delayed daily peak Westport relative other sites likely reflects sea breeze dynamics. Peak column concentrations generally lag peaks about four hours, occurring 9–10 a.m. for morning (from WRF‐CMAQ) around 4 p.m. midday WRF‐CMAQ). TROPOMI overpass time 1:30 misses concentrations. A box (F0AM) constrained site‐level WRF‐CMAQ fields 1–9 ppb hr −1 higher noontime rates three sets paired high‐ versus mid‐to‐low‐O days. F0AM sensitivity analyses six days predominantly transitional formation regime urban downwind sites, differing some x ‐saturated diagnosed summertime average conditions via weekday‐weekend effect.

Language: Английский

Citations

0
Evolutionary Optimization of the Reduced Gas‐Phase Isoprene Oxidation Mechanism DOI Creative Commons
Arijit Chakraborty, Forwood Wiser, Siddhartha Sen

et al.

Journal of Advances in Modeling Earth Systems, Journal Year: 2025, Volume and Issue: 17(5)

Published: May 1, 2025

Abstract Atmospheric chemistry is highly complex, and significant reductions in the size of chemical mechanism are required to simulate atmosphere. One bottlenecks creating reduced models identifying optimal numerical parameters. This process has been difficult automate, often relies on manual testing. In this work, we present application particle swarm optimization (PSO) toward optimizing stoichiometric coefficients rate constants a isoprene atmospheric oxidation mechanism. Using PSO, able achieve up 28.8% improvement our error metric when compared manually tuned mechanism, leading significantly optimized final work demonstrates PSO as promising thus far underutilized tool for development.

Language: Английский

Citations

0