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| Titel |
Mixing height determination by ceilometer |
| VerfasserIn |
N. Eresmaa, A. Karppinen, S. M. Joffre, Jorma Räsänen, H. Talvitie |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 6, no. 6 ; Nr. 6, no. 6 (2006-05-08), S.1485-1493 |
| Datensatznummer |
250003818
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| Publikation (Nr.) |
 copernicus.org/acp-6-1485-2006.pdf |
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| Zusammenfassung |
| A novel method for estimating the mixing height based on ceilometer
measurements is described and tested against commonly used methods for
determining mixing height. In this method an idealised backscatter profile
is fitted to the observed backscatter profile. The mixing height is one of
the idealised backscatter profile parameters.
An extensive amount of ceilometer data and vertical soundings data from the
Helsinki area in 2002 is utilized to test the applicability of the
ceilometer for mixing height determination. The results, including 71
convective and 38 stable cases, show that in clear sky conditions the mixing
heights determined from ceilometer based aerosol profiles and BL-height
estimates based on sounding data are in a good agreement. Rejected outlier
cases corresponded to very low aerosol concentrations in the mixed layer
leading to a very weak aerosol backscatter signal in the lowest layer. |
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