Browsing Alle Publikationen by Issue Date
Now showing items 1-20 of 5435
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Greigite (Fe3S4) Formation in Artificial Sediments via Solid‐State Transformation of Lepidocrocite
(Geochemistry, Geophysics, Geosystems, 2022-08-12)Greigite (Fe3S4) is a ferrimagnetic iron‐sulfide mineral that forms in sediments during diagenesis. Greigite growth can occur diachronously within a stratigraphic profile, complicating or overprinting environmental and ... -
Sound Velocity Measurements of B2‐Fe‐Ni‐Si Alloy Under High Pressure by Inelastic X‐Ray Scattering: Implications for the Composition of Earth's Core
(Geophysical Research Letters, 2022-08-04)Elastic properties of B2‐Fe0.67Ni0.06Si0.27 (15 wt.% Si) alloy have been investigated by combined high‐resolution inelastic X‐ray scattering and powder X‐ray diffraction in diamond anvil cells up to 100 GPa at room ... -
New impact diagnostics for cross‐validation of different observation types
(Quarterly Journal of the Royal Meteorological Society, 2022-07-31)New cross‐validation diagnostics have been derived by further partitioning well‐established impact diagnostics. They are related to consistency relations, the most prominent of which indicates whether the first‐guess ... -
Spatio‐Temporal Level Variations of the Martian Seasonal South Polar Cap From Co‐Registration of MOLA Profiles
(Journal of Geophysical Research: Planets, 2022-07-18)The seasonal deposition and sublimation of CO2 represents a major element in the Martian volatile cycle. Here, co‐registration strategies are applied to Mars Orbiter Laser Altimeter profiles to obtain spatio‐temporal ... -
Analytical Artefacts Preclude Reliable Isotope Ratio Measurement of Internal Water in Coral Skeletons
(Geostandards and Geoanalytical Research, 2022-07-12)Internal water in cold‐water and tropical coral skeletons was extracted and measured for its oxygen and hydrogen isotope ratios. Water was extracted by crushing pieces of coral hard tissue in a percussion device connected ... -
Algorithmic Differentiation for Sensitivity Analysis in Cloud Microphysics
(Journal of Advances in Modeling Earth Systems, 2022-07-12)The role of clouds for radiative transfer, precipitation formation, and their interaction with atmospheric dynamics depends strongly on cloud microphysics. The parameterization of cloud microphysical processes in weather ... -
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. ... -
Deepening the Late Quaternary's Deep Ocean Carbon Mysteries
(Geophysical Research Letters, 2022-07-06)Changes to the carbon content of the deep ocean, the largest reservoir in the surficial carbon cycle, are capable of altering atmospheric carbon dioxide concentrations and thereby Earth's climate. While the role of the ... -
Millimetre scale aeration of the rhizosphere and drilosphere
; ; (European Journal of Soil Science, 2022-07-06)
Soil aeration is a critical factor for oxygen‐limited subsoil processes, as transport by diffusion and advection is restricted by the long distance to the free atmosphere. Oxygen transport into the soil matrix is highly ... -
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 ... -
Benthic Carbon Remineralization and Iron Cycling in Relation to Sea Ice Cover Along the Eastern Continental Shelf of the Antarctic Peninsula
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Rapid and profound climatic and environmental changes have been predicted for the Antarctic Peninsula with so far unknown impact on the biogeochemistry of the continental shelves. In this study, we investigate benthic ... -
Basin‐scale estimates of greenhouse gas emissions from the Mara River, Kenya: Importance of discharge, stream size, and land use/land cover
; ; ; ;; (Limnology and Oceanography, 2022-06-23)
Greenhouse gas fluxes (CO2, CH4, and N2O) from African streams and rivers are under‐represented in global datasets, resulting in uncertainties in their contributions to regional and global budgets. We conducted year‐long ... -
Variability in the Concentration of Lithium in the Indo‐Pacific Ocean
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Lithium has limited biological activity and can readily replace aluminium, magnesium and iron ions in aluminosilicates, making it a proxy for the inorganic silicate cycle and its potential link to the carbon cycle. Data ... -
Application of mixed‐effects modelling and rule‐based models to explain copper variation in soil profiles of southern Germany
; ; ; ; (European Journal of Soil Science, 2022-06-20)
Copper (Cu) is an essential element for plants and microorganisms and at larger concentrations a toxic pollutant. A number of factors controlling Cu dynamics have been reported, but information on quantitative relationships ... -
Mesocrystalline Architecture in Hyaline Foraminifer Shells Indicates a Non‐Classical Crystallisation Pathway
; ; ; ; ; ; ; ; ; ; (Geochemistry, Geophysics, Geosystems, 2022-06-15)
Calcareous foraminifer shells (tests) represent one of the most important archives for paleoenvironmental and paleoclimatic reconstruction. To develop a mechanistic understanding of the relationship between environmental ... -
Performance of a Rotational Sensor to Decipher Volcano Seismic Signals on Etna, Italy
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Volcano‐seismic signals such as long‐period events and tremor are important indicators for volcanic activity and unrest. However, their wavefield is complex and characterization and location using traditional seismological ... -
Tides, Stratification, and Counter Rotation: The German Bight ROFI in Comparison to Other Regions of Freshwater Influence
;; ; (Journal of Geophysical Research: Oceans, 2022-06-03)
The characteristics of tidal velocity profiles and their relation to stratification are investigated based on high‐resolution field data collected at four locations in the German Bight Region of Freshwater Influence (ROFI) ... -
Effective buoyancy and CAPE: Some implications for tropical cyclones
(Quarterly Journal of the Royal Meteorological Society, 2022-06-01)We review the widely used concepts of “buoyancy” and “convective available potential energy” (CAPE) in relation to deep convection in tropical cyclones and discuss their limitations. A fact easily forgotten in applying ... -
The Subducting Slab as a Chromatographic Column: Regimes of Sub‐Solidus Mass Transport as a Function of Lithospheric Hydration State, With Special Reference to the Fate of Carbonate
; (Journal of Geophysical Research: Solid Earth, 2022-05-31)
We investigate the chemical budget of subduction zones at sub‐solidus conditions using a thermodynamic‐numerical simulation in which all major rock components are treated as soluble and potentially mobile in aqueous fluids. ... -
Robust approaches for model‐free small‐angle scattering data analysis
(Journal of Applied Crystallography, 2022-05-28)The small‐angle neutron scattering data of nanostructured magnetic samples contain information regarding their chemical and magnetic properties. Often, the first step to access characteristic magnetic and structural length ...