Browsing Geophysik, Extraterrestische Forschung by Title
Now showing items 1-20 of 963
-
1001 Rocket Launches for Space Missions and Their Infrasonic Signature
; ; ; (Geophysical Research Letters, 2021-04-28)
Infrasound array processing is applied to monitor and characterize atmospheric explosions in the context of the Comprehensive Nuclear‐Test‐Ban Treaty. Anyhow, for many infrasound sources the exact location and time are ... -
3D Active Source Seismic Imaging of the Alpine Fault Zone and the Whataroa Glacial Valley in New Zealand
; ; ; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Solid Earth, 2021-12-04)
The Alpine Fault zone in New Zealand marks a major transpressional plate boundary that is late in its typical earthquake cycle. Understanding the subsurface structures is crucial to understand the tectonic processes taking ... -
3D Classified GPR Facies Models From Multi-Frequency Data Volumes: A Synthetic Study
; (2022)
Modern GPR systems allow for acquiring densely sampled data sets also using different antenna frequencies. Here, we consider such a multi-frequency approach to image near-surface sedimentary structures at different spatial ... -
3D Local Earthquake Tomography of the Ecuadorian Margin in the Source Area of the 2016 Mw 7.8 Pedernales Earthquake
León‐Ríos, Sergio; Bie, Lidong; Agurto‐Detzel, Hans;; ; ; ; ; Font, Yvonne; ; ; Laigle, Mireille; Oregioni, Davide; ; ; (Journal of Geophysical Research: Solid Earth, 2021-03-25)
Based on manually analyzed waveforms recorded by the permanent Ecuadorian network and our large aftershock deployment installed after the Pedernales earthquake, we derive three‐dimensional Vp and Vp/Vs structures and ... -
3‐D Modeling of Vertical Gravity Gradients and the Delimitation of Tectonic Boundaries: The Caribbean Oceanic Domain as a Case Study
Gómez‐García, Ángela María;; ; ; ; ; (Geochemistry, Geophysics, Geosystems, 2019-11-28)
Geophysical data acquisition in oceanic domains is challenging, implying measurements with low and/or nonhomogeneous spatial resolution. The evolution of satellite gravimetry and altimetry techniques allows testing 3‐D ... -
4D quantification of alpine permafrost degradation in steep rock walls using a laboratory‐calibrated electrical resistivity tomography approach
Scandroglio, Riccardo;; Offer, Maike; (Near Surface Geophysics, 2021-03-09)
The warming of rock permafrost affects mechanical stability and hydro‐cryostatic pressures in rock walls. The coincident decrease in slope stability frequently affects infrastructure by creep and subsidence and promotes ... -
A 3D geoscience information system framework
(TU Freiberg, 2004) -
A Binomial Stochastic Framework for Efficiently Modeling Discrete Statistics of Convective Populations
; (Journal of Advances in Modeling Earth Systems, 2021-03-23)
Understanding the coupling between convective clouds and the general circulation, as well as addressing the gray zone problem in convective parameterization, requires insight into the genesis and maintenance of spatial ... -
A cold pool perturbation scheme to improve convective initiation in convection‐permitting models
; (Quarterly Journal of the Royal Meteorological Society, 2021-05-04)
Cold pools originate from evaporation in precipitating downdraughts and spread as density currents at the surface. Vertical motion at the leading edge of the cold pool is an important trigger for new convective cells in ... -
A Combined Neural Network‐ and Physics‐Based Approach for Modeling Plasmasphere Dynamics
; ; (Journal of Geophysical Research: Space Physics, 2021-03-16)
In recent years, feedforward neural networks (NNs) have been successfully applied to reconstruct global plasmasphere dynamics in the equatorial plane. These neural network‐based models capture the large‐scale dynamics of ... -
A comparison of Bayesian hierarchical space-time models for earthquake data
(2004)Stochastic earthquake models are often based on a marked point process approach as for instance presented in Vere-Jones (1995). This gives a fine resolution both in space and time making it possible to represent each ... -
A Comparison of Radial Diffusion Coefficients in 1‐D and 3‐D Long‐Term Radiation Belt Simulations
; ; ; ; (Journal of Geophysical Research: Space Physics, 2021-08-13)
Radial diffusion is one of the dominant physical mechanisms driving acceleration and loss of radiation belt electrons. A number of parameterizations for radial diffusion coefficients have been developed, each differing in ... -
A Comparison of the Location of the Mid‐Latitude Trough and Plasmapause Boundary
; ; (Journal of Geophysical Research: Space Physics, 2021-04-15)
Abstract: We have compared the location of the mid‐latitude trough observed in two dimensional vertical total electron content (vTEC) maps with four plasmapause boundary models, Radiation Belt Storm Probes (RBSP) observations, ... -
A concept for a regional coastal zone mission
(Univ. Berlin, 2002) -
A contribution to characterizing and calibrating the pointing control system of the SOFIA telescope
(Univ. Stuttgart, 2009)SOFIA, the Stratospheric Observatory for Infrared Astronomy, is an airborne observatory that will study the universe in the infrared spectrum. A Boeing 747-SP aircraft will carry a 2.5 m telescope designed to make sensitive ... -
A Coulomb Stress Response Model for Time‐Dependent Earthquake Forecasts
; (Journal of Geophysical Research: Solid Earth, 2022-08-31)
Seismicity models are probabilistic forecasts of earthquake rates to support seismic hazard assessment. Physics‐based models allow extrapolating previously unsampled parameter ranges and enable conclusions on underlying ... -
A Critical Evaluation of Deep Blue Algorithm Derived AVHRR Aerosol Product Over China
; ; ; ; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2019)
The Deep Blue (DB) aerosol retrieval algorithm has recently been applied to Advanced Very High Resolution Radiometer (AVHRR) data to produce a first version (V001) of a global aerosol optical thickness (AOT) data set. In ... -
A Decentralized Approach for Modeling Organized Convection Based on Thermal Populations on Microgrids
; (Journal of Advances in Modeling Earth Systems, 2022-10-26)
In this study, a spectral model for convective transport is coupled to a thermal population model on a two‐dimensional horizontal “microgrid,” covering the typical gridbox size of general circulation models. The goal is ... -
A Detailed, Multi‐Scale Assessment of an Atmospheric River Event and Its Impact on Extreme Glacier Melt in the Southern Alps of New Zealand
; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2021-05-02)
North‐westerly airflow and associated atmospheric rivers (ARs) have been found to profoundly influence New Zealand’s west coasts, by causing flooding, landslides and extreme ablation and accumulation on glaciers in the ...
