Measurement-Based Climatology Of Aerosol Direct Radiative Effect, Its Sensitivities, And Uncertainties From A Background Southeast US Site

ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
James P. Sherman PhD, Professor (Creator)
Appalachian State University (ASU )
Web Site:

Abstract: Aerosol optical properties measured at Appalachian State University’s co-located NASA AERONET and NOAA ESRL aerosol network monitoring sites over a nearly four-year period (June 2012–Feb 2016) are used, along with satellite-based surface reflectance measurements, to study the seasonal variability of diurnally averaged clear sky aerosol direct radiative effect (DRE) and radiative efficiency (RE) at the top-of-atmosphere (TOA) and at the surface. Aerosol chemistry and loading at the Appalachian State site are likely representative of the background southeast US (SE US), home to high summertime aerosol loading and one of only a few regions not to have warmed during the 20th century. This study is the first multi-year “ground truth” DRE study in the SE US, using aerosol network data products that are often used to validate satellite-based aerosol retrievals. The study is also the first in the SE US to quantify DRE uncertainties and sensitivities to aerosol optical properties and surface reflectance, including their seasonal dependence.

Additional Information

Sherman, J. P. and A. McComiskey (2018). "Measurement-based climatology of aerosol direct radiative effect, its sensitivities, and uncertainties from a background southeast US site." Atmos. Chem. Phys. 18(6): 4131-4152. Publisher version of record available at:
Language: English
Date: 2018
Aerosol, Aerosol chemistry, direct radiative effect (DRE), aerosol network monitoring, Clear sky aerosol DRE uncertainty

Email this document to