Articles | Volume 16, issue 21
Model description paper
01 Nov 2023
Model description paper |  | 01 Nov 2023

A simplified non-linear chemistry transport model for analyzing NO2 column observations: STILT–NOx

Dien Wu, Joshua L. Laughner, Junjie Liu, Paul I. Palmer, John C. Lin, and Paul O. Wennberg


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-876', Anonymous Referee #1, 13 Jun 2023
    • AC3: 'Reply on RC1', Dien Wu, 19 Aug 2023
  • RC2: 'Comment on egusphere-2023-876', Anonymous Referee #2, 16 Jun 2023
    • AC4: 'Reply on RC2', Dien Wu, 19 Aug 2023
  • CEC1: 'Comment on egusphere-2023-876', Juan Antonio Añel, 19 Jun 2023
    • AC1: 'Reply on CEC1', Dien Wu, 20 Jun 2023
      • CEC2: 'Reply on AC1', Juan Antonio Añel, 20 Jun 2023
  • AC2: 'Comment on egusphere-2023-876', Dien Wu, 19 Aug 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Dien Wu on behalf of the Authors (19 Aug 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (22 Aug 2023) by Jason Williams
RR by Anonymous Referee #1 (30 Aug 2023)
RR by Anonymous Referee #2 (04 Sep 2023)
ED: Publish as is (04 Sep 2023) by Jason Williams
AR by Dien Wu on behalf of the Authors (11 Sep 2023)  Manuscript 
Short summary
To balance computational expenses and chemical complexity in extracting emission signals from tropospheric NO2 columns, we propose a simplified non-linear Lagrangian chemistry transport model and assess its performance against TROPOMI v2 over power plants and cities. Using this model, we then discuss how NOx chemistry affects the relationship between NOx and CO2 emissions and how studying NO2 columns helps quantify modeled biases in wind directions and prior emissions.