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Fog water flux at a canopy top : direct measurement versus one-dimensional model

Title data

Klemm, Otto ; Wrzesinsky, Thomas ; Scheer, Clemens:
Fog water flux at a canopy top : direct measurement versus one-dimensional model.
In: Atmospheric Environment. Vol. 39 (September 2005) Issue 29 . - pp. 5375-5386.
ISSN 1873-2844
DOI: https://doi.org/10.1016/j.atmosenv.2005.05.041

Abstract in another language

A one-dimensional model [Lovett, 1984. Rates and mechanisms of cloud water deposition to a subalpine balsam fir forest. Atmospheric Environment 18, 361–371] to quantify fog water deposition was compared with results of long term (13 months) measurements of turbulent exchange with the eddy covariance method at a mountainous site in Central Europe. Turbulent exchange is mainly deposition and dominates over sedimentation at that site, therefore eddy covariance is a suitable tool in quantifying fog water deposition. The model can be operated with use of the measured droplet size distribution (DSD), with a DSD as parameterized from liquid water content (LWC) data, or with the measured visibility (VIS) as a quantitative indicator for fog. The latter is the easier measurement and therefore preferable for long-term applications. We compared the fog water deposition on a monthly basis. If VIS data are used as model input, the overall underestimate of the measurement is −23% as compared to the measurements. Using LWC and the parameterized DSD as input, the deviation is +37%. All deviations are highly significant.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER32166
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Professorship Micrometeorology - Univ.-Prof. Dr. Thomas Foken
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 11 Sep 2015 06:33
Last Modified: 11 Sep 2015 06:33
URI: https://eref.uni-bayreuth.de/id/eprint/19186