A new look into the impacts of dust radiative effects on the energetics of tropical easterly waves

Hosseinpour, Farnaz; Wilcox, Eric M.

doi:https://doi.org/10.5194/acp-24-707-2024

Articles | Volume 24, issue 1

https://doi.org/10.5194/acp-24-707-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Dust aerosol measurements, modeling and multidisciplinary...

https://doi.org/10.5194/acp-24-707-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 1

Research article

|

18 Jan 2024

Research article |

| 18 Jan 2024

A new look into the impacts of dust radiative effects on the energetics of tropical easterly waves

Farnaz Hosseinpour and Eric M. Wilcox

Supplement

https://doi.org/10.5194/acp-24-707-2024-supplement

Data sets

Global Modeling and Assimilation Office (GMAO) MERRA-2 inst6_3d_ana_Np: 3d,6-Hourly,Instantaneous,Pressure-Level,Analysis,Analyzed Meteorological Fields V5.12.4, Greenbelt, MD, USA https://doi.org/10.5067/A7S6XP56VZWS

Global Modeling and Assimilation Office (GMAO) MERRA-2 tavg1_2d_rad_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Radiation Diagnostics V5.12.4, Greenbelt, MD, USA https://doi.org/10.5067/Q9QMY5PBNV1T

Global Modeling and Assimilation Office (GMAO) MERRA-2 inst3_3d_asm_Np: 3d,3-Hourly,Instantaneous,Pressure-Level,Assimilation,Assimilated Meteorological Fields V5.12.4, Greenbelt, MD, USA https://doi.org/10.5067/QBZ6MG944HW0

MODIS Atmosphere L3 Daily Product, NASA MODIS Adaptive Processing System S. Platnick et al. https://doi.org/10.5067/MODIS/MOD08_D3.061

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Short summary

This study shows mechanistic relationships between the radiative effect of dust aerosols in the Saharan air layer and the kinetic energy of the African easterly waves across the tropical Atlantic Ocean using 22 years of daily satellite observations and reanalysis data based on satellite assimilation. Our findings suggest that dust aerosols not merely are transported by these waves but also contribute to the growth of waves through the enhancement of diabatic heating induced by dust.