Detection of dilution due to turbulent mixing vs. precipitation scavenging effects on biomass burning aerosol concentrations using stable water isotope ratios during ORACLES

Henze, Dean; Noone, David; Toohey, Darin

doi:https://doi.org/10.5194/acp-23-15269-2023

Articles | Volume 23, issue 24

https://doi.org/10.5194/acp-23-15269-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-15269-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 24

Research article

|

14 Dec 2023

Research article |

| 14 Dec 2023

Detection of dilution due to turbulent mixing vs. precipitation scavenging effects on biomass burning aerosol concentrations using stable water isotope ratios during ORACLES

Dean Henze, David Noone, and Darin Toohey

Data sets

MERRA-2 instU_3d_ana_Np: 3d,diurnal,Instantaneous,Pressure-Level,Analysis,Analyzed Meteorological Fields V5.12.4 Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/TRD91YO9S6E7

MERRA-2 instM_2d_gas_Nx: 2d,Monthly mean,Instantaneous,Single-Level,Assimilation,Aerosol Optical Depth Analysis V5.12.4 Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/XOGNBQEPLUC5

GPM DPR and GMI (Combined Precipitation) L3 1 month 0.25 degree x 0.25 degree V07 W. Olson https://doi.org/10.5067/GPM/DPRGMI/CMB/3B-MONTH/07

Suite of Aerosol, Cloud, and Related Data Acquired Aboard P3 During ORACLES 2016 ORACLES Science Team https://doi.org/10.5067/Suborbital/ORACLES/P3/2016_V3

Suite of Aerosol, Cloud, and Related Data Acquired Aboard P3 During ORACLES 2017 ORACLES Science Team https://doi.org/10.5067/Suborbital/ORACLES/P3/2017_V3

Suite of Aerosol, Cloud, and Related Data Acquired Aboard P3 During ORACLES 2018 ORACLES Science Team https://doi.org/10.5067/Suborbital/ORACLES/P3/2018_V3

MOD16A2 MODIS/Terra Net Evapotranspiration 8-Day L4 Global 500m SIN Grid V006 S. Running, Q. Mu, and M. Zhao https://doi.org/10.5067/MODIS/MOD16A2.006

Model code and software

Processing Code for Henze et al., ACP 2023 Dean Henze https://doi.org/10.5281/zenodo.10252985

Short summary

The interaction between biomass burning aerosols and clouds remains challenging to accurately determine from observations. This is in part because of difficulties distinguishing aerosol differences due to precipitation versus dilution processes from the observations. This study addresses the challenge by utilizing atmospheric heavy water isotope ratios to constrain mixing versus precipitation processes during a field campaign (ORACLES) and in turn explain observed aerosol concentrations.