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| Titel |
Atmospheric effect on the ground-based measurements of broadband surface albedo |
| VerfasserIn |
T. Manninen, A. Riihelä, G. Leeuw |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 5, no. 11 ; Nr. 5, no. 11 (2012-11-12), S.2675-2688 |
| Datensatznummer |
250003167
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| Publikation (Nr.) |
 copernicus.org/amt-5-2675-2012.pdf |
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| Zusammenfassung |
| 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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