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Influence of Rarely Mobile Boulders on Channel Width and Slope: Theory and Field Application
(Journal of Geophysical Research: Earth Surface, 2022-09-16)Large, rarely mobile boulders are observed globally in mountainous bedrock channels. Recent studies suggest that high concentrations of boulders could be associated with channel morphological adjustment. However, a ... -
Observational Evidence for Multivariate Drought Hazard Amplifications Across Disparate Climate Regimes
(Earth's Future, 2022-09-16)Drought poses significant challenges to global water security in a warming world. A global‐scale synthesis of the multivariate drought risk considering interdependencies between drought attributes across disparate climate ... -
Pore Space Topology Controls Ultrasonic Waveforms in Dry Volcanic Rocks
(Geophysical Research Letters, 2022-09-15)Pore space controls the mechanical and transport properties of rocks. At the laboratory scale, seismic modeling is usually performed in relatively homogeneous settings, and the influence of the pore space on the recorded ... -
Solar Activity Driven 27‐Day Signatures in Ionospheric Electron and Molecular Oxygen Densities
(Journal of Geophysical Research: Space Physics, 2022-09-13)The complex interactions in the upper atmosphere, which control the height‐dependent ionospheric response to the 27‐day solar rotation period, are investigated with the superposed epoch analysis technique. 27‐day signatures ... -
Developing a Laser Induced Liquid Beam Ion Desorption Spectral Database as Reference for Spaceborne Mass Spectrometers
(Earth and Space Science, 2022-09-13)Spaceborne impact ionization mass spectrometers, such as the Cosmic Dust Analyzer on board the past Cassini spacecraft or the SUrface Dust Analyzer being built for NASA's upcoming Europa Clipper mission, are of crucial ... -
Transformation of dissolved organic matter by two Indo‐Pacific sponges
(Limnology and Oceanography, 2022-09-12)Dissolved organic matter (DOM) is the largest organic carbon reservoir in the ocean and an integral component of biogeochemical cycles. The role of free‐living microbes in DOM transformation has been studied thoroughly, ... -
Limited Earthquake Interaction During a Geothermal Hydraulic Stimulation in Helsinki, Finland
(Journal of Geophysical Research: Solid Earth, 2022-09-12)We investigate induced seismicity associated with a hydraulic stimulation campaign performed in 2020 in the 5.8 km deep geothermal OTN‐2 well near Helsinki, Finland as part of the St1 Deep Heat project. A total of 2,875 m3 ... -
Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion
(Limnology and Oceanography, 2022-09-10)Physiological sensitivity of cold‐water corals to ocean change is far less understood than of tropical corals and very little is known about the impacts of ocean acidification and warming on degradative processes of dead ... -
Teleconnection Patterns of Different El Niño Types Revealed by Climate Network Curvature
(Geophysical Research Letters, 2022-09-09)The diversity of El Niño events is commonly described by two distinct flavors, the Eastern Pacific (EP) and Central Pacific (CP) type. While the remote impacts, that is, teleconnections, of EP and CP events have been studied ... -
Trade‐Offs for Climate‐Smart Forestry in Europe Under Uncertain Future Climate
(Earth's Future, 2022-09-09)Forests mitigate climate change by storing carbon and reducing emissions via substitution effects of wood products. Additionally, they provide many other important ecosystem services (ESs), but are vulnerable to climate ... -
Martian Atmospheric Spectral End‐Members Retrieval From ExoMars Thermal Infrared (TIRVIM) Data
(Journal of Geophysical Research: Planets, 2022-09-09)Key knowledge about planetary composition can be recovered from the study of thermal infrared spectral range datasets. This range has a huge diagnostic potential because it contains diagnostic absorptions from a planetary ... -
Episodic Venting of a Submarine Gas Seep on Geological Time Scales: Formosa Ridge, Northern South China Sea
(Journal of Geophysical Research: Solid Earth, 2022-09-09)The Formosa Ridge cold seep is among the first documented active seeps on the northern South China Sea passive margin slope. Although this system has been the focus of scientific studies for decades, the geological factors ... -
A New Method for Determining Fluid Flux at High Pressures Applied to the Dehydration of Serpentinites
(Geochemistry, Geophysics, Geosystems, 2022-09-08)A new method to determine fluid flux at high pressures and temperatures has been developed and used to study serpentinites at subduction zone conditions. Drill cores of a natural antigorite‐serpentinite with a strong ... -
Gradual warming prior to the end‐Permian mass extinction
(Palaeontology, 2022-09-06)The biggest known mass extinction in the history of animal life occurred at the Permian–Triassic boundary and has often been linked to global warming. Previous studies have suggested that a geologically rapid (<40 kyr) ... -
Site dependence of the magnetocaloric effect in Mn5−xFexSi3
(Journal of Applied Crystallography, 2022-09-06)The nuclear and magnetic structures of Mn3Fe2Si3 are investigated in the temperature range from 20 to 300 K. The magnetic properties of Mn3Fe2Si3 were measured on a single crystal. The compound undergoes a paramagnetic to ... -
Constraining Europa's Subsolar Atmosphere With a Joint Analysis of HST Spectral Images and Galileo Magnetic Field Data
(Journal of Geophysical Research: Space Physics, 2022-09-06)We constrain Europa's tenuous atmosphere on the subsolar hemisphere by combining two sets of observations: oxygen emissions at 1,304 and 1,356 Å from Hubble Space Telescope (HST) spectral images and Galileo magnetic field ... -
Upper Plate Response to a Sequential Elastic Rebound and Slab Acceleration During Laboratory‐Scale Subduction Megathrust Earthquakes
(Journal of Geophysical Research: Solid Earth, 2022-09-02)An earthquake‐induced stress drop on a megathrust instigates different responses on the upper plate and slab. We mimic homogenous and heterogeneous megathrust interfaces at the laboratory scale to monitor the strain ... -
Horizontal Wavenumber Spectra of Vertical Vorticity and Horizontal Divergence of Mesoscale Dynamics in the Mesosphere and Lower Thermosphere Using Multistatic Specular Meteor Radar Observations
(Earth and Space Science, 2022-09-02)Specular meteor radars (SMRs) have significantly contributed to the understanding of wind dynamics in the mesosphere and lower thermosphere (MLT). We present a method to estimate horizontal correlations of vertical vorticity ... -
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 ... -
Curie Temperatures and Emplacement Conditions of Pyroclastic Deposits From Popocatépetl Volcano, Mexico
(Geochemistry, Geophysics, Geosystems, 2022-08-29)Most pyroclastic deposits of Popocatépetl volcano were emplaced at high temperatures and have similar mafic to more evolved compositions, suggesting a long‐lived, interconnected magma environment. We performed a magnetic ...