Search Results - "Rotach, M. W."

A simple two-dimensional parameterisation for Flux Footprint Prediction (FFP) by Kljun, N, Calanca, P, Rotach, M. W, Schmid, H. P

“…Flux footprint models are often used for interpretation of flux tower measurements, to estimate position and size of surface source areas, and the relative…”
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The impact of valley geometry on daytime thermally driven flows and vertical transport processes by Wagner, J. S., Gohm, A., Rotach, M. W.

“…The influence of valley geometry on thermally driven flows is studied by means of high‐resolution simulations. An idealized valley–plain topography and a…”
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A simple parameterisation for flux footprint predictions by KLJUN, N, CALANCA, P, ROTACH, M. W, SCHMID, H. P

“…Flux footprint functions estimate the location and relative importance of passive scalar sources influencing flux measurements at a given receptor height…”
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Foehn–cold pool interactions in the Inn Valley during PIANO IOP2 by Haid, M., Gohm, A., Umek, L., Ward, H. C., Muschinski, T., Lehner, L., Rotach, M. W.

“…A case‐study is presented of a south foehn emanating from the Wipp Valley, Austria, which encountered a cold‐air pool (CAP) in the Inn Valley near the city of…”
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Influence of along-valley terrain heterogeneity on exchange processes over idealized valleys by Wagner, J S, Gohm, A, Rotach, M W

“…Idealized numerical simulations of thermally driven flows over various valley–plain topographies are performed under daytime conditions. Valley floor…”
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Accuracy of retrieving temperature and humidity profiles by ground-based microwave radiometry in truly complex terrain by Massaro, G, Stiperski, I, Pospichal, B, Rotach, M. W

“…Within the Innsbruck Box project, a ground-based microwave radiometer (RPG-HATPRO) was operated in the Inn Valley (Austria), in very complex terrain, between…”
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EMPOL 1.0: a new parameterization of pollen emission in numerical weather prediction models by Zink, K, Pauling, A, Rotach, M. W, Vogel, H, Kaufmann, P, Clot, B

“…Simulating pollen concentrations with numerical weather prediction (NWP) systems requires a parameterization for pollen emission. We have developed a…”
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Temporal dynamics of CO2 fluxes and profiles over a Central European City by VOGT, R, CHRISTEN, A, ROTACH, M. W, ROTH, M, SATYANARAYANA, A. N. V

“…In Summer 2002 eddy covariance flux measurements of CO 2 were performed over a dense urban surface. The month-long measurements were carried out in the…”
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Simulation of Pollutant Transport in Complex Terrain with a Numerical Weather Prediction-Particle Dispersion Model Combination by Szintai, B, Kaufmann, P, Rotach, M. W

“…A new scaling approach, based on the convective velocity obtained from the sun-exposed eastern slopes and thus suited for steep and narrow Alpine valleys, is…”
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BUBBLE – an Urban Boundary Layer Meteorology Project by Rotach, M. W., Vogt, R., Bernhofer, C., Batchvarova, E., Christen, A., Clappier, A., Feddersen, B., Gryning, S.-E., Martucci, G., Mayer, H., Mitev, V., Oke, T. R., Parlow, E., Richner, H., Roth, M., Roulet, Y.-A., Ruffieux, D., Salmond, J. A., Schatzmann, M., Voogt, J. A.

“…The Basel UrBan Boundary Layer Experiment (BUBBLE) was a year-long experimental effort to investigate in detail the boundary layer structure in the City of…”
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A three-dimensional backward Lagrangian footprint model for a wide range of boundary-layer stratifications by KLJUN, N, ROTACH, M. W, SCHMID, H. P

“…We present a three-dimensional Lagrangian footprint model with the ability to predict the area of influence (footprint) of a measurement within a wide range of…”
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Meteorology applied to urban air pollution problems: concepts from COST 715 by Fisher, B., Kukkonen, J., Piringer, M., Rotach, M. W., Schatzmann, M.

“…The outcome of COST 715 is reviewed from the viewpoint of a potential user who is required to consider urban meteorology within an air pollution assessment. It…”
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Large‐eddy simulation of foehn–cold pool interactions in the Inn Valley during PIANO IOP 2 by Umek, L., Gohm, A., Haid, M., Ward, H. C., Rotach, M. W.

“…Processes of cold‐air pool (CAP) erosion in an Alpine valley during south foehn are investigated based on a real‐case large‐eddy simulation (LES). The event…”
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Uncertainty propagation for flood forecasting in the Alps: different views and impacts from MAP D-PHASE by Rotach, M. W, Arpagaus, M, Dorninger, M, Hegg, C, Montani, A, Ranzi, R

“…D-PHASE was a Forecast Demonstration Project of the World Weather Research Programme (WWRP) related to the Mesoscale Alpine Programme (MAP). Its goal was to…”
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Downscaling climate change scenarios for apple pest and disease modeling in Switzerland by Hirschi, M, Stoeckli, S, Dubrovsky, M, Spirig, C, Calanca, P, Rotach, M. W, Fischer, A. M, Duffy, B, Samietz, J

“…As a consequence of current and projected climate change in temperate regions of Europe, agricultural pests and diseases are expected to occur more frequently…”
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A wind tunnel study of organised and turbulent air motions in urban street canyons by Kastner-Klein, P., Fedorovich, E., Rotach, M.W.

“…High concentrations of car-exhaust gases in urban street canyons are typically associated with low wind velocities or situations when the wind blows…”
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Influence of grid resolution of large-eddy simulations on foehn-cold pool interaction by Umek, L, Gohm, A, Haid, M, Ward, H C, Rotach, M W

“…Numerical simulations are performed to assess the influence of horizontal and vertical model resolution on the turbulent erosion of a cold-air pool (CAP) by…”
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Evaluation of Lagrangian footprint model using data from wind tunnel convective boundary layer by Kljun, N., Kastner-Klein, P., Fedorovich, E., Rotach, M.W.

“…The Lagrangian footprint model LPDM-B was evaluated using data from SF 6 tracer release experiments in a wind tunnel with a sheared convective boundary layer…”
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Profiles of turbulence statistics in and above an urban street canyon by Rotach, M.W.

“…Results from an extensive urban climate study are presented. Eighteen months of continuous measurements of mean variables and a total of 131 runs of turbulence…”
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Surface radiation budget in an Alpine valley by Matzinger, N., Andretta, M., Gorsel, E. Van, Vogt, R., Ohmura, A., Rotach, M. W.

“…Surface radiation data were collected at seven sites in the Riviera Valley in southern Switzerland during the special observing period of the Mesoscale Alpine…”
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