Atmospheric effect on the ground-based measurements of broadband surface albedo

Ground-based pyranometer measurements of the (clear-sky) broadband surface albedo are affected by the atmospheric conditions (mainly by aerosol particles, water vapour and ozone). A new semi-empirical method for estimating the magnitude of the effect of atmospheric conditions on surface albedo measu...

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Main Authors: T. Manninen, A. Riihelä, G. de Leeuw
Format: Article
Language:English
Published: Copernicus Publications 2012-11-01
Series:Atmospheric Measurement Techniques
Online Access:http://www.atmos-meas-tech.net/5/2675/2012/amt-5-2675-2012.pdf
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author T. Manninen
A. Riihelä
G. de Leeuw
author_facet T. Manninen
A. Riihelä
G. de Leeuw
author_sort T. Manninen
collection DOAJ
description Ground-based pyranometer measurements of the (clear-sky) broadband surface albedo are affected by the atmospheric conditions (mainly by aerosol particles, water vapour and ozone). A new semi-empirical method for estimating the magnitude of the effect of atmospheric conditions on surface albedo measurements in clear-sky conditions is presented. Global and reflected radiation and/or aerosol optical depth (AOD) at two wavelengths are needed to apply the method. Depending on the aerosol optical depth and the solar zenith angle values, the effect can be as large as 20%. For the cases we tested using data from the Cabauw atmospheric test site in the Netherlands, the atmosphere caused typically up to 5% overestimation of surface albedo with respect to corresponding black-sky surface albedo values.
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spelling doaj.art-40303a5e1e934fce9b938ac4585e67fb2022-12-22T01:38:34ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482012-11-015112675268810.5194/amt-5-2675-2012Atmospheric effect on the ground-based measurements of broadband surface albedoT. ManninenA. RiiheläG. de LeeuwGround-based pyranometer measurements of the (clear-sky) broadband surface albedo are affected by the atmospheric conditions (mainly by aerosol particles, water vapour and ozone). A new semi-empirical method for estimating the magnitude of the effect of atmospheric conditions on surface albedo measurements in clear-sky conditions is presented. Global and reflected radiation and/or aerosol optical depth (AOD) at two wavelengths are needed to apply the method. Depending on the aerosol optical depth and the solar zenith angle values, the effect can be as large as 20%. For the cases we tested using data from the Cabauw atmospheric test site in the Netherlands, the atmosphere caused typically up to 5% overestimation of surface albedo with respect to corresponding black-sky surface albedo values.http://www.atmos-meas-tech.net/5/2675/2012/amt-5-2675-2012.pdf
spellingShingle T. Manninen
A. Riihelä
G. de Leeuw
Atmospheric effect on the ground-based measurements of broadband surface albedo
Atmospheric Measurement Techniques
title Atmospheric effect on the ground-based measurements of broadband surface albedo
title_full Atmospheric effect on the ground-based measurements of broadband surface albedo
title_fullStr Atmospheric effect on the ground-based measurements of broadband surface albedo
title_full_unstemmed Atmospheric effect on the ground-based measurements of broadband surface albedo
title_short Atmospheric effect on the ground-based measurements of broadband surface albedo
title_sort atmospheric effect on the ground based measurements of broadband surface albedo
url http://www.atmos-meas-tech.net/5/2675/2012/amt-5-2675-2012.pdf
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AT gdeleeuw atmosphericeffectonthegroundbasedmeasurementsofbroadbandsurfacealbedo