Geophysik, Extraterrestische Forschung
Recent Submissions
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Geomagnetic Detection of the Atmospheric Acoustic Resonance at 3.8 mHz During the Hunga Tonga Eruption Event on 15 January 2022
; ; (Journal of Geophysical Research: Space Physics, 2022-07-07)
Modeling studies have predicted that the acoustic resonance of the atmosphere during geophysical events such as earthquakes and volcanos can lead to an oscillation of the geomagnetic field with a frequency of about 4 mHz. ... -
Role of Poroelasticity During the Early Postseismic Deformation of the 2010 Maule Megathrust Earthquake
; ; ; ; ; ; ; (Geophysical Research Letters, 2022-05-09)
Megathrust earthquakes impose changes of differential stress and pore pressure in the lithosphere‐asthenosphere system that are transiently relaxed during the postseismic period primarily due to afterslip, viscoelastic and ... -
Stratospheric Moistening After 2000
; ; ; ; ; ; (Geophysical Research Letters, 2022-04-22)
The significant climate feedback of stratospheric water vapor (SWV) necessitates quantitative estimates of SWV budget changes. Model simulations driven by the newest European Centre for Medium‐Range Weather Forecast ... -
Lagrangian Analysis of Moisture Sources of Precipitation in the Tianshan Mountains, Central Asia
; ; (Earth and Space Science, 2022-06-30)
The moisture sources of precipitation in the Tianshan Mountains, one of the regions with the highest precipitation in Central Asia during 1979–2017 are comprehensively and quantitatively summarized by using a Lagrangian ... -
Synoptic circulation changes over Central Europe from 1900 to 2100: Reanalyses and Coupled Model Intercomparison Project phase 6
; ; ; ; (International Journal of Climatology, 2021-12-14)
While the evidence for anthropogenic climate change continues to strengthen, and concerns about severe weather events are increasing, global projections of regional climate change are still uncertain due to model‐dependent ... -
How close are we to 1.5 degC or 2 degC of global warming?
; ; (Weather, 2022-03-28)
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Antecedent lake conditions shape resistance and resilience of a shallow lake ecosystem following extreme wind storms
; ; ; ; (Limnology and Oceanography, 2021-06-20)
Extreme wind storms can strongly influence short‐term variation in lake ecosystem functioning. Climate change is affecting storms by altering their frequency, duration, and intensity, which may have consequences for lake ... -
On the evaluation of climate change impact models
; ; (Wiley Interdisciplinary Reviews: Climate Change, 2022-03-03)
In‐depth understanding of the potential implications of climate change is required to guide decision‐ and policy‐makers when developing adaptation strategies and designing infrastructure suitable for future conditions. ... -
An Energy Conserving Vlasov Solver That Tolerates Coarse Velocity Space Resolutions: Simulation of MMS Reconnection Events
; ; (Journal of Geophysical Research: Space Physics, 2022-02-11)
Vlasov solvers that operate on a phase‐space grid are highly accurate but also numerically demanding. Coarse velocity space resolutions, which are largely unproblematic in particle‐in‐cell (PIC) simulations, can lead to ... -
Melting Behavior of Rimed and Unrimed Snowflakes Investigated With Statistics of Triple‐Frequency Doppler Radar Observations
; ; ; (Journal of Geophysical Research: Atmospheres, 2022-05-04)
Comparing the reflectivity flux at the top and bottom of the melting layer (ML) reveals the overall effect of the microphysical processes occurring within the ML on the particle population. If melting is the only process ... -
A storyline attribution of the 2011/2012 drought in Southeastern South America
; (Weather, 2022-03-24)
The 2011/2012 summer drought in Southeastern South America (SESA) was a short but devastating event. What would this event have looked like under pre‐industrial conditions, or in a +2 degC world? We find that climate change ... -
The ICON Earth System Model Version 1.0
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This work documents the ICON‐Earth System Model (ICON‐ESM V1.0), the first coupled model based on the ICON (ICOsahedral Non‐hydrostatic) framework with its unstructured, icosahedral grid concept. The ICON‐A atmosphere uses ... -
The 2018–2020 Multi‐Year Drought Sets a New Benchmark in Europe
; ; ; ; ; ; ; (Earth's Future, 2022-03-24)
During the period 2018–2020, Europe experienced a series of hot and dry weather conditions with significant socioeconomic and environmental consequences. Yet, the extremity of these multi‐year dry conditions is not recognized. ... -
Generation of Reflections and PKP Precursors From a Scattering Layer in D″
; (Geophysical Research Letters, 2022-02-17)
The D″ region consists of many different structures on many length‐scales and here we test whether an inhomogeneous scattering region could potentially explain two of these seismic observables, namely PKP precursors, which ... -
Recent evidence for warmer and drier growing seasons in climate sensitive regions of Central America from multiple global datasets
; ; ; (International Journal of Climatology, 2021-08-09)
Smallholder livelihoods throughout Central America are built on rain‐fed agriculture and depend on seasonal variations in temperature and precipitation. Recent climatic shifts in this highly diverse region are not well ... -
Attribution of Observed Recent Decrease in Low Clouds Over the Northeastern Pacific to Cloud‐Controlling Factors
; ; ; (Geophysical Research Letters, 2022-01-28)
Marine low clouds cool the Earth's climate, with their coverage (LCC) being controlled by their environment. Here, an observed significant decrease of LCC in the northeastern Pacific over the past two decades is linked ... -
On Timescales and Reversibility of the Ocean's Response to Enhanced Greenland Ice Sheet Melting in Comprehensive Climate Models
; ; ; ; (Geophysical Research Letters, 2022-03-01)
Warming of the North Atlantic region in climate history often was associated with massive melting of the Greenland Ice Sheet. To identify the meltwater's impacts and isolate these from internal variability and other global ... -
Diagnosis of Model Errors With a Sliding Time‐Window Bayesian Analysis
; ; ; (Water Resources Research, 2022-02-17)
Deterministic hydrological models with uncertain, but inferred‐to‐be‐time‐invariant parameters typically show time‐dependent model errors. Such errors can occur if a hydrological process is active in certain time periods ... -
Using Clustering, Statistical Modeling, and Climate Change Projections to Analyze Recent and Future Region‐Specific Compound Ozone and Temperature Burden Over Europe
; (GeoHealth, 2022-04-16)
High ground‐level ozone concentrations and high air temperatures present two health‐relevant natural hazards. The most severe health outcomes are generally associated with concurrent elevated levels of both variables, ... -
On gravity wave parameterisation in vicinity of low‐level blocking
(Atmospheric Science Letters, 2022-03-07)
This note is framed as an open question to the community regarding parameterisation schemes using the blocking layer depth to reduce the orographic gravity wave drag. It is the purpose of this note to argue that the current ... -
Alternating Emission Features in Io's Footprint Tail: Magnetohydrodynamical Simulations of Possible Causes
; (Journal of Geophysical Research: Space Physics, 2022-04-28)
Io's movement relative to the plasma in Jupiter's magnetosphere creates Alfvén waves propagating along the magnetic field lines which are partially reflected along their path. These waves are the root cause for auroral ... -
The Height‐Dependent Delayed Ionospheric Response to Solar EUV
; ; ; (Journal of Geophysical Research: Space Physics, 2022-03-24)
Based on the analysis of electron density Ne profiles (Grahamstown ionosonde), a case study of the height‐dependent ionospheric response to two 27‐day solar rotation periods in 2019 is performed. A well‐defined sinusoidal ... -
Potential Links Between Tropospheric and Stratospheric Circulation Extremes During Early 2020
; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2022-02-07)
February‐March 2020 was marked by highly anomalous large‐scale circulations in the Northern extratropical troposphere and stratosphere. The Atlantic jet reached extreme strength, linked to some of the strongest and most ... -
Seismic Velocity Recovery in the Subsurface: Transient Damage and Groundwater Drainage Following the 2015 Gorkha Earthquake, Nepal
; ; ; ; ; ; (Journal of Geophysical Research: Solid Earth, 2022-02-01)
Shallow earthquakes frequently disturb the hydrological and mechanical state of the subsurface, with consequences for hazard and water management. Transient post‐seismic hydrological behavior has been widely reported, ... -
On‐site non‐destructive determination of the remanent magnetization of archaeological finds using field magnetometers
; ; ; ; ; ; (Archaeological Prospection, 2021-09-30)
The determination of the natural remanent magnetization (NRM) of archaeological features can be used for magnetic modelling, joining of shards, archaeomagnetic dating or the investigation of the firing–cooling–collapsing ...
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