Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Manuela Lehner"'
Autor:
Manuela Lehner, Mathias W. Rotach
Publikováno v:
Atmosphere, Vol 9, Iss 7, p 276 (2018)
Coupling of the earth’s surface with the atmosphere is achieved through an exchange of momentum, energy, and mass in the atmospheric boundary layer. In mountainous terrain, this exchange results from a combination of multiple transport processes, w
Externí odkaz:
https://doaj.org/article/4591cff8bd334038bd11236f90a6e2ea
Publikováno v:
International Journal of Climatology. 43:456-479
Using WRF as a benchmark, GRAMM-SCI simulations are performed for a case study of thermally driven valley- and slope winds in the Inn Valley, Austria. A clear-sky, synoptically undisturbed day was selected when large spatial heterogeneities occur in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e503a54dee1e50b97c39ff2ee3f466a4
https://doi.org/10.21203/rs.3.rs-2529872/v1
https://doi.org/10.21203/rs.3.rs-2529872/v1
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 147:2173-2196
Autor:
Bianca Adler, Alexander Gohm, Ulrich Corsmeier, Piet Markmann, Norbert Kalthoff, George Georgoussis, Eckhard Gast, George Tsaknakis, Maren Haid, Mathias W. Rotach, Nevio Babić, Manuela Lehner
Publikováno v:
Bulletin of the American Meteorological Society. 102:E38-E60
While the exchange of mass, momentum, moisture, and energy over horizontally homogeneous, flat terrain is mostly driven by vertical turbulent mixing, thermally and dynamically driven mesoscale flows substantially contribute to the Earth–atmosphere
Autor:
Manuela Lehner, Gaspard Simonet, Mathias W. Rotach, Friedrich Obleitner, Lorenzo Giovannini, Leonardo Montagnani
Observations from six eddy-covariance stations in the Austrian Inn Valley reveal a strong spatial variability in near-surface turbulent fluxes. While the stations are located within an approximately 6.5 km long section of the valley and thus within a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::616f0e67714a27e9678510dd3561ef34
https://doi.org/10.5194/egusphere-egu22-2666
https://doi.org/10.5194/egusphere-egu22-2666
Autor:
Manuela Lehner, Mathias W. Rotach
To calculate turbulent fluxes from eddy-covariance measurements, an appropriate filter time needs to be selected to remove non-turbulent larger-scale motions from the raw time series, while retaining all of the turbulent contributions. Common choices
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4505d6d0230df2dd459f0b60dc7e57d
https://doi.org/10.5194/egusphere-egu22-2687
https://doi.org/10.5194/egusphere-egu22-2687
Presently, Limited Area or High-Resolution Mesoscale (HRM) models with grid spacing on theorder of 1 km are used for numerical weather forecasting. Mountainous terrain is, however,characterized by large surface heterogeneity since steep topography, u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04f3ffc144991e8f0ee94e1947fb69b7
https://doi.org/10.5194/egusphere-egu22-813
https://doi.org/10.5194/egusphere-egu22-813
Publikováno v:
Boundary-Layer Meteorology. 173:435-450
“Valley-wind days” are characterized by synoptically undisturbed, clear-sky conditions, which lead to the formation of thermally-driven slope- and valley-wind circulations in mountain regions. A simple method is presented to identify these condit
Autor:
Mathias W. Rotach, Manuela Lehner
The stable boundary layer is typically characterized by weak and sometimes intermittent turbulence, particularly under very stable conditions. In mountain valleys, nocturnal temperature inversions and cold-air pools form frequently under synoptically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fa32e235fdfa09d9a80d26779e62a0a
https://doi.org/10.5194/egusphere-egu21-2009
https://doi.org/10.5194/egusphere-egu21-2009