A5025613199- Meteorological Phenomena and Simulations
- Wind and Air Flow Studies
- Climate variability and models
- Plant Water Relations and Carbon Dynamics
- Cryospheric studies and observations
- Fluid Dynamics and Turbulent Flows
- Urban Heat Island Mitigation
- Atmospheric and Environmental Gas Dynamics
- Air Quality and Health Impacts
- Aeolian processes and effects
- Atmospheric chemistry and aerosols
- Landslides and related hazards
- Atmospheric aerosols and clouds
- Precipitation Measurement and Analysis
- Hydrology and Watershed Management Studies
- Allergic Rhinitis and Sensitization
- Species Distribution and Climate Change
- Flood Risk Assessment and Management
- Aerodynamics and Fluid Dynamics Research
- Particle Dynamics in Fluid Flows
- Geophysics and Gravity Measurements
- Science and Climate Studies
- Probabilistic and Robust Engineering Design
- Vehicle emissions and performance
- Noise Effects and Management
Universität Innsbruck
2016-2025
ETH Zurich
1993-2020
Federal Office of Meteorology and Climatology MeteoSwiss
2005-2020
University of Virginia
2020
National Centre for Atmospheric Science
2020
Universitat de les Illes Balears
2020
University of Trento
2020
Météo-France
2020
Management Center Innsbruck
2018
Science Oxford
2016
Abstract. Flux footprint models are often used for interpretation of flux tower measurements, to estimate position and size surface source areas, the relative contribution passive scalar sources measured fluxes. Accurate knowledge footprints is crucial importance any upscaling exercises from single site measurements local or regional scale. Hence, ultimately also considerable improved greenhouse gas budgeting. With increasing numbers towers within large monitoring networks such as FluxNet,...
Abstract Within the framework of international field campaign COPS (Convective and Orographically‐induced Precipitation Study), a large suite state‐of‐the‐art meteorological instrumentation was operated, partially combined for first time. This includes networks in situ remote‐sensing systems such as Global Positioning System well synergy multi‐wavelength passive active instruments advanced radar lidar systems. The phase performed from 01 June to 31 August 2007 low‐mountain area southwestern...
The exchange of heat, momentum, and mass in the atmosphere over mountainous terrain is controlled by synoptic-scale dynamics, thermally driven mesoscale circulations, turbulence. This article reviews key challenges relevant to understanding processes mountain boundary layer outlines possible research priorities for future. review describes limitations experimental study turbulent complex terrain, impact slope valley breezes on structure convective layer, role intermittent mixing...
The Autonomous Modular Scanner, onboard the Ikhana remotely operated aircraft, captured fires over Basin Fire Complex in Monterey County, California, on 8 July 2008.The image has been overlaid onto terrain data within Google Earth to provide additional information fire managers effects of behavior.The yellow areas depict active areas, with reds and purples showing burned-over areas.
Abstract Within MAP, one of the scientific projects was devoted to ‘Boundary Layers in Complex Terrain’. In a number subprojects, boundary‐layer issues were addressed and detailed high‐resolution multi‐sensor observations combined with simulation by models allowing for adequate parametrization turbulence processes. this contribution, are briefly introduced an attempt is made summarize their key findings put them into joint perspective. Spatial variability found be large but strictly related...
Abstract This paper investigates the steps necessary to achieve accurate simulations of flow over steep, mountainous terrain. Large-eddy in Riviera Valley southern Swiss Alps are performed at horizontal resolutions as fine 150 m using Advanced Regional Prediction System. Comparisons made with surface station and radiosonde measurements from Mesoscale Alpine Programme (MAP)-Riviera project field campaign 1999. Excellent agreement between observations is obtained, but only when high-resolution...
Planetary boundary layers (PBLs) represent sensitive and changeable coupling agents that regulate the fluxes of energy, momentum, matter between atmosphere land or sea over a range scales, from local to global.Numerical weather prediction (NWP), climate, air pollution, coupled atmosphere-hydrosphere-biosphere models all include PBL schemes as submodels.With development high-resolution models, requirements for have dramatically increased, making them key element modern model suites address...
Demonstration of probabilistic hydrological and atmospheric simulation flood events in the Alpine region (D-PHASE) is made by Forecast Project connection with Mesoscale Programme (MAP). Its focus lies end-to-end forecasting a mountainous such as Alps surrounding lower ranges. scope ranges from radar observations modeling to decision making civil protection agents. More than 30 high-resolution deterministic models coupled some seven various combinations provided real-time online information....
Abstract High-resolution numerical weather prediction (NWP) models produce more detailed precipitation structures but the real benefit is probably realistic statistics gained with higher resolution and not information on specific grid point. By evaluating three model pairs, each consisting of a high-resolution NWP system resolving convection explicitly its low-resolution-driving parameterized convection, different spatial scales for thresholds, this paper addresses question whether really...
The theoretical treatment of turbulence is largely based on the assumption horizontally homogeneous and flat underlying surfaces. Correspondingly, approaches developed over years to measure statistics in order test this understanding or provide model input, are also same terrain. Here we discuss aspects measurements that require special attention mountainous We especially emphasize importance data quality (flux corrections, assessment, uncertainty estimates) address issues coordinate systems...
Coupling of the earth’s surface with atmosphere is achieved through an exchange momentum, energy, and mass in atmospheric boundary layer. In mountainous terrain, this results from a combination multiple transport processes, which act interact on different spatial temporal scales, including, for example, orographic gravity waves, thermally driven circulations, moist convection, turbulent motions. Incorporating these processes previous studies, new definition layer mountain (MBL), defined....
Pollutant dispersion processes over complex terrain are much more complicated than flat areas, as they affected by atmospheric interactions with the orography at different spatial scales. This paper reviews recent findings and progress in this field, focusing on both experimental modeling perspectives. It highlights open questions challenges to our capability for better understanding representing controlling fate of pollutants mountainous areas. In particular, attention is focused new...
Abstract Mesoscale Alpine Programme Demonstration of Probabilistic Hydrological and Atmospheric Simulation Flood Events (MAP D‐PHASE) is a forecast demonstration project aiming at demonstrating recent improvements in the operational use end‐to‐end forecasting system consisting atmospheric models, hydrological prediction systems, nowcasting tools warnings for end‐users. Both deterministic ensemble systems (EPSs) have been implemented European Alps (atmospheric models) selection mesoscale...
Global warming will lead to earlier beginnings and prolongation of growing seasons in temperate regions have pronounced effects on phenology life-history adaptation many species. These changes were not easy simulate for actual phenologies because the rudimentary temporal (season) spatial (regional) resolution climate model projections. We investigate effect change regional incidence a pest insect with nearly worldwide distribution very high potential season length temperature – Codling Moth,...
Among the processes contributing to global CO2 budget, net uptake by land surface bears largest uncertainty. Therefore, sink is often estimated as residual from other terms that are known with greater certainty. On average over last decades, difference between modeled and this negative, thus suggesting different modeling approaches miss an important part in land–atmosphere exchange. Based on experience atmospheric at high resolution, it argued discrepancy likely due missed mesoscale...