Measurement-based climatology of aerosol direct radiative effect, its sensitivities, and uncertainties from a background southeast US site

Sherman, James P.; McComiskey, Allison

doi:https://doi.org/10.5194/acp-18-4131-2018

Articles | Volume 18, issue 6

https://doi.org/10.5194/acp-18-4131-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-18-4131-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 18, issue 6

Research article

|

26 Mar 2018

Research article |

| 26 Mar 2018

Measurement-based climatology of aerosol direct radiative effect, its sensitivities, and uncertainties from a background southeast US site

James P. Sherman and Allison McComiskey

Supplement

https://doi.org/10.5194/acp-18-4131-2018-supplement

Data sets

Aerosol measurements EMEP http://ebas.nilu.no/Default.aspx

AERONET Level 2 aerosol optical depth data GSFC https://aeronet.gsfc.nasa.gov/cgi-bin/webtool_opera_v2_new

APP Statistical Summary Plot Page, NOAA https://www.esrl.noaa.gov/gmd/aero/net/status_plot.php?sta=app

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Short summary

This paper highlights the first multi-year ground-based climatology of aerosol direct radiative effect (DRE) in the southeastern US Aerosol DRE at the co-located NOAA and NASA aerosol monitoring sites at Appalachian State University is approximately five times more negative during summer than winter. Aerosol DRE is most sensitive to aerosol optical depth (AOD). Use of MODIS-measured increases DRE uncertainty by a factor of 2.5 to 5.