Articles | Volume 21, issue 22
Atmos. Chem. Phys., 21, 16689–16707, 2021
https://doi.org/10.5194/acp-21-16689-2021

Special issue: New observations and related modelling studies of the aerosol–cloud–climate...

Atmos. Chem. Phys., 21, 16689–16707, 2021
https://doi.org/10.5194/acp-21-16689-2021

Research article 16 Nov 2021

Research article | 16 Nov 2021

A meteorological overview of the ORACLES (ObseRvations of Aerosols above CLouds and their intEractionS) campaign over the southeastern Atlantic during 2016–2018: Part 1 – Climatology

Ju-Mee Ryoo et al.

Data sets

MODIS Atmosphere L3 Monthly Product (08_L3). NASA MODIS Adaptive Processing System (Aqua) S. Platnick, P. Hubanks, K. Meyer, and M. D. King https://doi.org/10.5067/MODIS/MYD08_M3.006

MODIS Atmosphere L3 Monthly Product (08_L3). NASA MODIS Adaptive Processing System (Terra) S. Platnick, P. Hubanks, K. Meyer, and M. D. King https://doi.org/10.5067/MODIS/MYD08_M3.006

JRA-55: Japanese 55-year Reanalysis, Monthly Means and Variances Japan Meteorological Agency/Japan https://doi.org/10.5065/D60G3H5B

Moffett Field ORACLES Science Team https://doi.org/10.5067/Suborbital/ORACLES/P3/2016_V2

Moffett Field ORACLES Science Team https://doi.org/10.5067/Suborbital/ORACLES/P3/2017_V2

Moffett Field ORACLES Science Team https://doi.org/10.5067/Suborbital/ORACLES/P3/2018_V2

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Short summary
Part 1 of the meteorological overview paper highlights the anomalous meteorological characteristics during the ORACLES deployment compared to the climatological mean at monthly timescales. The upper-level wave disturbance and the associated anomalous circulation explain the weakening of AEJ-S through the reduction of the strength of the heat low over the land during August 2017. This may also help explain the anomalously low aerosol optical depth observed in the August 2017 ORACLES deployment.
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