Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Josef M. Oberhuber"'
Autor:
Michael Herzog, Josef M. Oberhuber, G. G. J. Ernst, Christiane Textor, Hans-F. Graf, William I. Rose
Publikováno v:
Journal of Volcanology and Geothermal Research. 150:378-394
The goal of this paper is to determine the parameters that control the aggregation efficiency and the growth rate of volcanic particles within the eruption column. Numerical experiments are performed with the plume model ATHAM (Active Tracer High res
Autor:
William I. Rose, G. G. J. Ernst, Hans-F. Graf, Josef M. Oberhuber, Christiane Textor, Michael Herzog
Publikováno v:
Journal of Volcanology and Geothermal Research. 150:359-377
The aggregation of volcanic ash particles within the eruption column of explosive eruptions has been observed at many volcanoes. It influences the residence time of ash in the atmosphere and the radiative properties of the umbrella cloud. However, th
Publikováno v:
Journal of the Atmospheric Sciences
The presented turbulence scheme was developed for the Active Tracer High-Resolution Atmospheric Model (ATHAM) to parameterize the effect of subgrid-scale turbulence. In contrast to the commonly used assumption of local isotropy in high-resolution atm
Autor:
Josef M. Oberhuber, M. Christoph, Lennart Bengtsson, Andreas Bacher, Zeng-Zhen Hu, Erich Roeckner
Publikováno v:
ResearcherID
In this study, we investigated the impact of global warming on the variabilities of large-scale interannual and interdecadal climate modes and teleconnection patterns with two long-term integrations of the coupled general circulation model of ECHAM4/
Publikováno v:
Journal of Geophysical Research: Atmospheres
Report / Max-Planck-Institut für Meteorologie
Report / Max-Planck-Institut für Meteorologie
Sensitivity studies were performed with a complex nonhydrostatic volcano plume model that explicitly treats turbulence and microphysics. The impact of environmental conditions such as wind, temperature and humidity profiles was studied for standard o
Autor:
Axel Timmermann, Erich Roeckner, Monika Esch, Mojib Latif, Andreas Bacher, Josef M. Oberhuber
Publikováno v:
Nature
Report / Max-Planck-Institut für Meteorologie
ResearcherID
Report / Max-Planck-Institut für Meteorologie
ResearcherID
The El Niño/Southern Oscillation (ENSO) phenomenon is the strongest natural interannual climate fluctuation1. ENSO originates in the tropical Pacific Ocean and has large effects on the ecology of the region, but it also influences the entire global
Publikováno v:
Geophysical Research Letters, 25 (13). p. 2273.
Geophysical Research Letters
Report / Max-Planck-Institut für Meteorologie
Geophysical Research Letters
Report / Max-Planck-Institut für Meteorologie
A simple data assimilation technique has been applied for initializing coupled ocean-atmosphere general circulation models, which is able to generate the three-dimensional thermal state of the low-latitude oceans by forcing the model with observed an
Publikováno v:
Journal of Geophysical Research: Oceans. 102:5531-5551
A simplified form of the motional induction equation is used to calculate the dominant three-dimensional (3-D) electromagnetic (EM) fields generated by a specified steady 3-D global ocean circulation. The EM calculations require, at most, vertical in
Publikováno v:
Journal of geomagnetism and geoelectricity. 49:1351-1372
For some time, oceanographers have used measurements of the small electromagnetic fields generated by the flow of the electrically conductive oceans through the Earth's main magnetic field to infer values for the ocean flow velocities. An overview of
Publikováno v:
Climate Dynamics
Report / Max-Planck-Institut für Meteorologie
Report / Max-Planck-Institut für Meteorologie
The interannual variability associated with the El Niño/Southern Oscillation (ENSO) cycle is investigated using a relatively high-resolution (T42) coupled general circulation model (CGCM) of the atmosphere and ocean. Although the flux correction is