Preprints
https://doi.org/10.5194/egusphere-2022-873
https://doi.org/10.5194/egusphere-2022-873
20 Sep 2022
 | 20 Sep 2022

Global Nitrogen and Sulfur Budgets Using a Measurement-Model Fusion Approach

Hannah J. Rubin, Joshua S. Fu, Frank Dentener, Rui Li, Kan Huang, and Hongbo Fu

Abstract. Global reactive nitrogen (N) deposition has more than tripled since 1860 and is expected to remain high due to land use changes and fossil fuel consumption. We update the 2010 global deposition budget for nitrogen and sulfur with new regional wet deposition measurements from Asia, improving the ensemble results of eleven global chemistry transport models from the second phase of the United Nation’s Task Force on Hemispheric Transport of Air Pollution (HTAP-II). The observationally adjusted global N deposition budget is 130 Tg-N, representing a 10 % increase and the adjusted global sulfur deposition budget is 80 Tg-S, representing no change. Our study demonstrates that a global measurement-model fusion approach can substantially improve N and S deposition model estimates at a regional scale and represents a step forward toward the World Meteorological Organization’s goal of global fusion products for accurately mapping harmful air pollution.

Hannah J. Rubin et al.

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-873', Anonymous Referee #1, 26 Sep 2022
    • AC1: 'Reply on RC1', Joshua Fu, 21 Mar 2023
  • RC2: 'Comment on egusphere-2022-873', Anonymous Referee #2, 30 Sep 2022
    • AC2: 'Reply on RC2', Joshua Fu, 21 Mar 2023
  • RC3: 'Comment on egusphere-2022-873', Anonymous Referee #3, 12 Oct 2022
    • AC3: 'Reply on RC3', Joshua Fu, 21 Mar 2023

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-873', Anonymous Referee #1, 26 Sep 2022
    • AC1: 'Reply on RC1', Joshua Fu, 21 Mar 2023
  • RC2: 'Comment on egusphere-2022-873', Anonymous Referee #2, 30 Sep 2022
    • AC2: 'Reply on RC2', Joshua Fu, 21 Mar 2023
  • RC3: 'Comment on egusphere-2022-873', Anonymous Referee #3, 12 Oct 2022
    • AC3: 'Reply on RC3', Joshua Fu, 21 Mar 2023

Hannah J. Rubin et al.

Hannah J. Rubin et al.

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Short summary
We update the 2010 global deposition budget for nitrogen and sulfur with new regional wet deposition measurements, improving the ensemble results of eleven global chemistry transport models from HTAP-II. Our study demonstrates that a global measurement-model fusion approach can substantially improve N and S deposition model estimates at a regional scale and represents a step forward toward the WMO’s goal of global fusion products for accurately mapping harmful air pollution.