Supplementary material to "NO x Emissions Constraints from GEMS NO 2 Retrievals: Inversion Methodology and Air Quality Model Evaluation in Bangkok using ASIA-AQ Multi-Platform Observations"

2026 Open access

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Authors: Julianna Christopoulos, Pablo E. Saide, Manas Ranjan Mohanty, Nattamon Maneenoi, Jhoon Kim, Laura Judd, Katherine R. Travis, Savitri Garivait, Agapol Junpen, Kazuyuki Miyazaki, Jinkyul Choi, Takashi Sekiya
+11 more David Peterson, Theodore M. McHardy, Nicholas J. Gapp, Jason M. St. Clair, Erin R. Delaria, Glenn M. Wolfe, Abby E. Sebol, Alessandro Franchin, ChangMin Cho, Morgan L. Silverman, James H. Crawford
DOI: 10.5194/egusphere-2026-472-supplement
Cited by: 0

Abstract

Methods S1.1 Gaussian Plume (GP) Inversion MethodWe apply a Gaussian plume model method to estimate NOx emissions over Bangkok as outlined in Kuhlmann et al., 2024.This approach fits a vertically integrated Gaussian plume model to GEMS-observed NO2 column densities, accounting for wind advection, plume dispersion, and chemical loss.The Gaussian plume model for a point source is expressed as:

Fields of Study & Subjects

Atmospheric chemistry and aerosols Atmospheric Ozone and Climate Atmospheric and Environmental Gas Dynamics

Publication details

Publication date
10 February 2026
Language
EN