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The Sensible Heat Flux in the Course of the Year at Ny-Ålesund, Svalbard: Characteristics of Eddy Covariance Data and Corresponding Model Results

Title data

Jocher, Georg ; Schulz, Alexander ; Ritter, Christoph ; Neuber, Roland ; Dethloff, Klaus ; Foken, Thomas:
The Sensible Heat Flux in the Course of the Year at Ny-Ålesund, Svalbard: Characteristics of Eddy Covariance Data and Corresponding Model Results.
In: Advances in Meteorology. Vol. 2015 (2015) . - Article ID 852108.
ISSN 1687-9317
DOI: https://doi.org/10.1155/2015/852108

Abstract in another language

In this paper we present one year of meteorological and flux measurements obtained near Ny- ˚ Alesund, Spitsbergen. Fluxes arederived by the eddy covariance method and by a hydrodynamic model approach (HMA) as well. Both methods are compared andanalyzed with respect to season and mean wind direction. Concerning thewind field we find a clear distinction between 3 prevailingregimes (which have influence on the flux behavior) mainly caused by the topography at the measurement site. Concerning thefluxes we find a good agreement between the HMA and the eddy covariance method in cases of turbulent mixing in summer butdeviations at stable conditions, when the HMA almost always shows negative fluxes. Part of the deviation is based on a dependenceof HMA fluxes on friction velocity and the influence of the molecular boundary layer. Moreover, the flagging system of the eddycovariance software package TK3 is briefly revised. A new quality criterion for the use of fluxes obtained by the eddy covariancemethod, which is based on integral turbulence characteristics, is proposed.

Further data

Item Type: Article in a journal
Refereed: No
Additional notes: BAYCEER126531
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Micrometeorology
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: 18 May 2015 09:01
Last Modified: 18 May 2015 09:01
URI: https://eref.uni-bayreuth.de/id/eprint/13831