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Turbulent flux and meteorological measurements during ARCTEX-2006 campaign

Title data

Lüers, Johannes ; Bareiss, Jörg:
Turbulent flux and meteorological measurements during ARCTEX-2006 campaign.
Bremerhaven : PANGAEA , 2013
DOI: https://doi.org/10.1594/PANGAEA.811066

Abstract in another language

This dataset present result from the DFG- funded Arctic-Turbulence-Experiment (ARCTEX-2006) performed by the University of Bayreuth on the island of Svalbard, Norway, during the winter/spring transition 2006. From May 5 to May 19, 2006 turbulent flux and meteorological measurements were performed on the monitoring field near Ny-Ålesund, at 78°55'24'' N, 11°55'15'' E Kongsfjord, Svalbard (Spitsbergen), Norway. The ARCTEX-2006 campaign site was located about 200 m southeast of the settlement on flat snow covered tundra, 11 m to 14 m above sea level.The permanent sites used for this study consisted of the 10 m meteorological tower of the Alfred Wegener Institute for Polar- and Marine Research (AWI), the international standardized radiation measurement site of the Baseline Surface Radiation Network (BSRN), the radiosonde launch site and the AWI tethered balloon launch sites.The temporary sites - set up by the University of Bayreuth - were a 6 m meteorological gradient tower, an eddy-flux measurement complex (EF), and a laser-scintillometer section (SLS). A quality assessment and data correction was applied to detect and eliminate specific measurement errors common at a high arctic landscape. In addition, the quality checked sensible heat flux measurements are compared with bulk aerodynamic formulas that are widely used in atmosphere-ocean/land-ice models for polar regions as described in Ebert and Curry (1993, doi:10.1029/93JC00656) and Launiainen and Cheng (1995). These parameterization approaches easily allow estimation of the turbulent surface fluxes from routine meteorological measurements.The data show: - the role of the intermittency of the turbulent atmospheric fluctuation of momentum and scalars, - the existence of a disturbed vertical temperature profile (sharp inversion layer) close to the surface, - the relevance of possible free convection events for the snow or ice melt in the Arctic spring at Svalbard, and - the relevance of meso-scale atmospheric circulation pattern and air-mass advection for the near-surface turbulent heat exchange in the Arctic spring at Svalbard. Recommendations and improvements regarding the interpretation of eddy-flux and laser-scintillometer data as well as the arrangement of the instrumentation under polar distinct exchange conditions and (extreme) weather situations could be derived.Related to: Lüers, Johannes; Bareiss, Jörg (2011): Direct near-surface measurements of sensible heat fluxes in the Arctic tundra applying eddy covariance and laser scintillometry-the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006). Theoretical and Applied Climatology, 105(3-4), 387-402, doi:10.1007/s00704-011-0400-5Lüers, Johannes; Bareiss, Jörg (2010): The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site - the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006). Atmospheric Chemistry and Physics, 10(1), 157-168, doi:10.5194/acp-10-157-2010

Further data

Item Type: Other (Research data)
Additional notes: BAYCEER115634
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Micrometeorology
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
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/13856