Satellite observations of smoke–cloud–radiation interactions over the Amazon rainforest

Herbert, Ross; Stier, Philip

doi:https://doi.org/10.5194/acp-23-4595-2023

Articles | Volume 23, issue 7

https://doi.org/10.5194/acp-23-4595-2023

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

https://doi.org/10.5194/acp-23-4595-2023

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

Articles | Volume 23, issue 7

Research article

|

17 Apr 2023

Research article |

| 17 Apr 2023

Satellite observations of smoke–cloud–radiation interactions over the Amazon rainforest

Ross Herbert and Philip Stier

Supplement

https://doi.org/10.5194/acp-23-4595-2023-supplement

Data sets

Dataset for manuscript "Satellite Observations of Smoke-Cloud-Radiation Interactions Over the Amazon Rainforest" Ross Herbert https://doi.org/10.5281/zenodo.7664442

Level-1 and Atmosphere Archive & Distribution System Distributed Active Archive Center NASA https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/61/

NASA GESDISC data archive NASA https://gpm1.gesdisc.eosdis.nasa.gov/data/

ECMWF Re-Analysis 5 (ERA5) model data European Centre for Medium-Range Weather Forecasts https://data.ceda.ac.uk/badc/ecmwf-era5/

Model code and software

ECRAD - ECMWF atmospheric radiation scheme European Centre for Medium-Range Weather Forecasts https://github.com/ecmwf-ifs/ecrad

HYSPLIT-WEB trajectory model NOAA https://www.ready.noaa.gov/HYSPLIT.php

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Short summary

We provide robust evidence from multiple sources showing that smoke from fires in the Amazon rainforest significantly modifies the diurnal cycle of convection and cools the climate. Low to moderate amounts of smoke increase deep convective clouds and rain, whilst beyond a threshold amount, the smoke starts to suppress the convection and rain. We are currently at this threshold, suggesting increases in fires from agricultural practices or droughts will reduce cloudiness and rain over the region.