Geophysik, Extraterrestische Forschung: Recent submissions
Now showing items 1-25 of 826
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Anomalous Reconnection Layer at Earth's Dayside Magnetopause
; ; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Space Physics, 2021-09-24)
Observations by the Magnetospheric Multiscale spacecraft (MMS) of an unusual layer, located between the dayside magnetosheath and the magnetosphere, alternating with encounters with the magnetosheath during an extended ... -
Lagrangian Coherent Structures and Vortex Formation in High Spatiotemporal‐Resolution Satellite Winds of an Atmospheric Kármán Vortex Street
; ; ; ; (Journal of Geophysical Research: Atmospheres, 2021-10-06)
Recent advances in geostationary imaging have enabled the derivation of high spatiotemporal‐resolution cloud‐motion winds for the study of mesoscale unsteady flows. Due to the general absence of ground truth, the quality ... -
Observed and Simulated Variability of Droplet Spectral Dispersion in Convective Clouds Over the Amazon
; ; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2021-10-15)
In this study, the variability of the spectral dispersion of droplet size distributions (DSDs) in convective clouds is investigated. Analyses are based on aircraft measurements of growing cumuli near the Amazon basin, and ... -
Late Holocene Climate Changes in the Altai Region Based on a First High‐Resolution Biomarker Isotope Record From Lake Khar Nuur
; ; ; ; ; ; ; ; (Geophysical Research Letters, 2021-10-19)
The Late Holocene marks a substantial cultural and economic transition in the eastern Eurasian Steppe and Altai Region with the dispersal of nomadic pastoralism. So far, paleoclimate conditions during this time remain ... -
Beating 1 Sievert: Optimal Radiation Shielding of Astronauts on a Mission to Mars
; ; ; ; (Space Weather, 2021-09-03)
Space radiation is one of the main concerns in planning long‐term human space missions. There are two main types of hazardous radiation: solar energetic particles (SEP) and galactic cosmic rays (GCR). The intensity and ... -
Spatio‐Temporal Evolution of Earthquake Static Stress Drop Values in the 2016–2017 Central Italy Seismic Sequence
; ; (Journal of Geophysical Research: Solid Earth, 2021-11-11)
The static stress drop of an earthquake is an indicator of the stress state of a specific fault before rupture initiation. The stress state is primarily controlled by the ambient stress field, fault strength, fault complexity, ... -
Geological History of Southeastern Gorgonum Chaos, Mars: A Story of Water and Wind
; ; (Journal of Geophysical Research: Planets, 2021-09-10)
Gorgonum Chaos is part of the Eridania paleolake in Terra Sirenum and displays a number of prominent light‐toned morphological features that bear a record of the regional climatic conditions throughout most of Martian ... -
Three‐dimensional investigation of an open‐ and a closed‐system Pingo in northwestern Canada
; (Permafrost and Periglacial Processes, 2021-05-13)
The present study presents three‐dimensional investigations of a hydrostatic pingo in the Mackenzie Delta region and a hydraulic pingo in the Ogilvie Mountains and contributes to a better understanding about the internal ... -
Reanalysis in Earth System Science: Toward Terrestrial Ecosystem Reanalysis
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A reanalysis is a physically consistent set of optimally merged simulated model states and historical observational data, using data assimilation. High computational costs for modeled processes and assimilation algorithms ... -
Uncertainties in Kelvin Waves in ECMWF Analyses and Forecasts: Insights From Aeolus Observing System Experiments
; ; (Geophysical Research Letters, 2021-11-16)
The European Space Agency Earth Explorer mission Aeolus with the first spaceborne Doppler Wind Lidar onboard provides global coverage of wind profiles twice per day. This paper discusses the impact of assimilating Aeolus ... -
Real‐Time Monitoring of Ionosphere VTEC Using Multi‐GNSS Carrier‐Phase Observations and B‐Splines
; ; ; ; (Space Weather, 2021-10-11)
Monitoring the Vertical Total Electron Content (VTEC) of the ionosphere is important for applications ranging from navigation to detection of space weather events. Therefore, emerging efforts have been made by several ... -
The Onset of a Substorm and the Mating Instability
; (Journal of Geophysical Research: Space Physics, 2021-10-19)
The paper underlines the view that the appearance of beading and its nonlinear growth in the onset arc occurs independently from the onset of reconnection in the tail at about 20 RE. Both events follow from an extreme ... -
A nonlocal three‐dimensional turbulence parameterization (NLT3D) for numerical weather prediction models
; (Quarterly Journal of the Royal Meteorological Society, 2021-10-29)
With increasing resolution of numerical weather prediction (NWP) models, classical subgrid‐scale processes become increasingly resolved on the model grid. In particular, turbulence in the planetary boundary layer (PBL) is ... -
Characterization and Evolution of Organized Shallow Convection in the Downstream North Atlantic Trades
; ; (Journal of Geophysical Research: Atmospheres, 2021-08-26)
Four previously identified patterns of meso‐scale cloud organization in the trades — called Sugar, Gravel, Flowers, and Fish — are studied using long‐term records of ground‐based measurements, satellite observations and ... -
Variability of the precipitation over the Tianshan Mountains, Central Asia. Part I: Linear and nonlinear trends of the annual and seasonal precipitation
; ; (International Journal of Climatology, 2021-06-21)
The Tianshan Mountains, with their status as ‘water tower’, receive quantities of precipitation that are among the highest in Central Asia. There are considerable knowledge gaps regarding the understanding of spatial and ... -
A Lagrangian Perspective on Stable Water Isotopes During the West African Monsoon
; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2021-10-05)
We present a Lagrangian framework for identifying mechanisms that control the isotopic composition of mid‐tropospheric water vapor in the Sahel region during the West African Monsoon 2016. In this region mixing between ... -
Malaco temperature reconstructions and numerical simulation of environmental conditions in the southeastern Carpathian Basin during the Last Glacial Maximum
; ; ; (Journal of Quaternary Science, 2021-05-05)
We investigate the glacial climate conditions in the southeastern Carpathian Basin (Vojvodina, Serbia) based on the reconstruction of malacological palaeotemperatures and results from a high‐resolution regional climate ... -
Uncertainty in Aerosol Optical Depth From Modern Aerosol‐Climate Models, Reanalyses, and Satellite Products
; ; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2022-01-18)
Despite the implication of aerosols for the radiation budget, there are persistent differences in data for the aerosol optical depth (τ) for 1998–2019. This study presents a comprehensive evaluation of the large‐scale ... -
Global Drivers and Transport Mechanisms of Lunar Rockfalls
; ; ; (Journal of Geophysical Research: Planets, 2021-10-18)
The long‐ and short‐term drivers and transport mechanisms of lunar rockfalls are currently not well understood, but could provide valuable information about the geologic processes that still shape the surface of the Moon ... -
Investigating the Basal Shear Zone of the Submarine Tuaheni Landslide Complex, New Zealand: A Core‐Log‐Seismic Integration Study
; ; ; ; ; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Solid Earth, 2022-01-18)
Although submarine landslides have been studied for decades, a persistent challenge is the integration of diverse geoscientific datasets to characterize failure processes. We present a core‐log‐seismic integration study ... -
Simulating Linear Kinematic Features in Viscous‐Plastic Sea Ice Models on Quadrilateral and Triangular Grids With Different Variable Staggering
; ; ; ; ; ; ; ; (Journal of Advances in Modeling Earth Systems, 2021-10-28)
Observations in polar regions show that sea ice deformations are often narrow linear features. These long bands of deformations are referred to as Linear Kinematic Features (LKFs). Viscous‐plastic sea ice models have the ... -
Formation of the Thebe Extension in the Ring System of Jupiter
; (Journal of Geophysical Research: Space Physics, 2021-11-03)
Jupiter's tenuous dust ring system is embedded in the planet's inner magnetosphere, and—among other structures—contains a very tenuous protrusion called the Thebe extension. In an attempt to explain the existence of this ... -
Joint Inversion of Receiver Functions and Apparent Incidence Angles for Sparse Seismic Data
; ; ; ; (Earth and Space Science, 2021-09-28)
The estimation of crustal structure and thickness is essential in understanding the formation and evolution of terrestrial planets. Initial planetary missions with seismic instrumentation on board face the additional ... -
Impact of a large artificial lake on regional climate: A typical meteorological year Meso‐NH simulation results
; ; ; ; (International Journal of Climatology, 2021-07-29)
Large artificial lakes and reservoirs affect the meteorological regime of the shore area and the local climate takes on a number of new features that were previously absent. This work focuses on the weather impact of the ... -
Year‐round sub‐seasonal forecast skill for Atlantic–European weather regimes
; ; ; ; (Quarterly Journal of the Royal Meteorological Society, 2021-10-25)
Weather regime forecasts are a prominent use case of sub‐seasonal prediction in the midlatitudes. A systematic evaluation and understanding of year‐round sub‐seasonal regime forecast performance is still missing, however. ...