caa a22 4500 445800798 CHVBK 20180317145140.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s00704-011-0400-5 doi (NATIONALLICENCE)springer-10.1007/s00704-011-0400-5 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) [Elektronische Daten] [J. Lüers, J. Bareiss] Recent climate warming in the Arctic requires improvements in permafrost and carbon cycle monitoring, accomplished here by setting up long-term observation sites with high-quality in situ measurements of turbulent atmospheric energy fluxes applying the eddy covariance method and/or laser scintillometry in Arctic landscapes. Accurate quantification and well-adapted parameterizations of turbulent energy fluxes, e.g., during neutral to stable stratified conditions, are a fundamental problem in soil-snow-ice-vegetation-atmosphere interaction studies. We present results from the Arctic Turbulence Experiment (ARCTEX-2006) performed on the island of Svalbard, Norway, during the winter/spring transition 2006 that focus on data correction and quality assessment, on synoptic weather conditions, as well as site-specific micrometeorological features. A quality assessment and data correction adapted to the environmental conditions of polar regions demonstrates that specific measurement errors common at a high Arctic landscape could be minimized. We discuss 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, and the relevance of possible free convection events for the snow or ice melt in the Arctic spring at Svalbard. Recommendations and improvements regarding the interpretation of eddy flux data as well as the arrangement of the instrumentation under polar distinct exchange conditions and (extreme) weather situations are presented. Springer-Verlag, 2011 Lüers J. Department of Micrometeorology, University of Bayreuth, 95440, Bayreuth, Germany aut Bareiss J. Department of Micrometeorology, University of Bayreuth, 95440, Bayreuth, Germany aut Theoretical and Applied Climatology Springer Vienna 105/3-4(2011-10-01), 387-402 0177-798X 105:3-4<387 2011 105 704 https://doi.org/10.1007/s00704-011-0400-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00704-011-0400-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lüers J. Department of Micrometeorology, University of Bayreuth, 95440, Bayreuth, Germany aut NATIONALLICENCE 700 1- Bareiss J. Department of Micrometeorology, University of Bayreuth, 95440, Bayreuth, Germany aut NATIONALLICENCE 773 0- Theoretical and Applied Climatology Springer Vienna 105/3-4(2011-10-01), 387-402 0177-798X 105:3-4<387 2011 105 704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer