The SCALEX Campaign: Scale-Crossing Land Surface and Boundary Layer Processes in the TERENO-preAlpine Observatory

Wolf, B. ; Chwala, C. ; Fersch, B. ; Garvelmann, J. ; Junkermann, W. ; Zeeman, M. J. ; Angerer, A. ; Adler, B. ; Beck, C. ; Brosy, C. ; Brugger, P. ; Emeis, S. ; Dannenmann, M. ; De Roo, F. ; Diaz-Pines, E. ; Haas, E. ; Hagen, M. ; Hajnsek, I. ; Jacobeit, J. ; Jagdhuber, T. ; Kalthoff, N. ; Kiese, R. ; Kunstmann, H. ; Kosak, O. ; Krieg, R. ; Malchow, C. ; Mauder, M. ; Merz, R. ; Notarnicola, C. ; Philipp, A. ; Reif, W. ; Reineke, S. ; Rödiger, T. ; Ruehr, N. ; Schäfer, K. ; Schrön, M. ; Senatore, A. ; Shupe, H. ; Völksch, I. ; Wanninger, C. ; Zacharias, S. ; Schmid, H. P.

Année de publication
ScaleX is a collaborative measurement campaign, collocated with a long-term environmental observatory of the German Terrestrial Environmental Observatories (TERENO) network in the mountainous terrain of the Bavarian Prealps, Germany. The aims of both TERENO and ScaleX include the measurement and modeling of land surface-atmosphere interactions of energy, water, and greenhouse gases. ScaleX is motivated by the recognition that long-term intensive observational research over years or decades must be based on well-proven, mostly automated measurement systems, concentrated in a small number of locations. In contrast, short-term intensive campaigns offer the opportunity to assess spatial distributions and gradients by concentrated instrument deployments, and by mobile sensors (ground and/or airborne) to obtain transects and three-dimensional patterns of atmospheric, surface, or soil variables and processes. Moreover, intensive campaigns are ideal proving grounds for innovative instruments, methods, and techniques to measure quantities that cannot (yet) be automated or deployed over long time periods. ScaleX is distinctive in its design, which combines the benefits of a long-term environmental-monitoring approach (TERENO) with the versatility and innovative power of a series of intensive campaigns, to bridge across a wide span of spatial and temporal scales. This contribution presents the concept and first data products of ScaleX-2015, which occurred in June?July 2015. The second installment of ScaleX took place in summer 2016 and periodic further ScaleX campaigns are planned throughout the lifetime of TERENO. This paper calls for collaboration in future ScaleX campaigns or to use our data in modelling studies. It is also an invitation to emulate the ScaleX concept at other long-term observatories.

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