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Showing 951 to 1000 of 59105 works
Evaluating Automated Seismic Event Detection Approaches: An Application to Victoria Land, East Antarctica
As seismic data collection continues to grow, advanced automated processing techniques for robust phase identification and event detection are becoming increasingly important. How…
Regional Monitoring of Hydrocarbon Levels (Grönfjord, the Greenland Sea)
This study assessed total hydrocarbon content and polycyclic aromatic hydrocarbon content in Grönfjord (the Greenland Sea, Svalbard). The field study was held in marine expedit…
Synoptic variability in the tropical oceanic moist margin
Recent research has described a ‘moist margin’ in the tropics, defined through a total column water vapor (TCWV) value of 48 kg m-2, that encloses most of the rainfall over the tr…
The Frictional-Viscous Transition in Experimentally Deformed Granitoid Fault Gouge
In crustal faults dominated by granitoid gouges, the frictional-viscous transition marks a significant change in strength constraining the lower depth limit of the seismogenic zon…
Magnetic Domain States and Critical Sizes in the Titanomagnetite Series
The minerals carrying the magnetic remanence in geological samples are commonly a solid solution series of iron-titanium spinels known as titanomagnetites. Despite the range of co…
Time evolution of dehydration-induced stick-slip behaviors of simulated bassanite gouges
Pore fluid pressure generated by dehydration of hydrous minerals can trigger deep and intermediate-depth earthquakes. To investigate its effect on frictional behaviors, we conduct…
Equation of State of White Dwarfs and Mass-Radius Estimation in the Newtonian Limit
White Dwarf stars are one of the densest form of matter following neutron star and black holes. A typical White Dwarf is as massive as our Sun has radius comparable to the Earth. …
Esprit de Corpse: Further Co-Creative ArtScience Journeys
c \cite{Beck_2021,Claudet_2020,Cunsolo_2018,Franke_2020,process,Jung_2022,Kemmis_2014} In 2021, and again in 2022, our globally scattered group of artists and scientists followed …
High resolution variability of the ocean carbon sink
Measurements of the surface ocean fugacity of carbon dioxide (fCO2) provide an important constraint on the global ocean carbon sink, yet the gap filling products developed so far …
Characterizing Precipitation Behaviors of H− in the Martian Atmosphere
Solar wind protons can charge exchange with the extensive hydrogen corona of Mars, resulting in a significant flux of energetic neutral atoms (ENAs). As these solar wind hydrogen …
Multi-frequency SuperDARN interferometer calibration
The ground-based, high-frequency radars of the Super Dual Auroral Radar Network (SuperDARN) observe backscatter from ionospheric field-aligned plasma irregularities and features o…
Unraveling the Dynamics of Moisture Transport during Atmospheric Rivers Producing Rainfall in the Southern Andes
Atmospheric rivers (ARs) are known to produce both beneficial and extreme rainfall, leading to natural hazards in Chile. Motivated to understand moisture transport during AR event…
Ultra-low velocity zone beneath the Atlantic near St. Helena
There are various hotspots in the Atlantic ocean, which are underlain by mantle plumes that likely cross the mantle and originate at the core-mantle boundary. We use teleseismic c…
Thermodynamic Modeling of Alterations During Climate Transition Reveals Evidence of Past Temperate Conditions on Venus
We modeled the thermodynamic evolution of the venusian crust in the presence of an atmosphere and paleo-ocean during a potential climate transition to its present uninhabitable st…
Historically Consistent and Geodetically Constrained Bayesian Inference of Megathrust Rheology
Understanding the buildup of stress in space and time at tectonic plate interfaces is a key component of explaining sequences of earthquakes and aseismic slip (SEAS) at plate bo…
Emergence and circulation coupling of moist layers over the tropical Atlantic
Mid-tropospheric elevated moist layers (EMLs) near the melting level have been found in various regional observational studies in the tropics. Recently, a preponderance of EMLs in…
Dependencies of Simulated Convective Cell and System Growth Biases on Atmospheric Instability and Model Resolution
This study evaluates convective cell properties and their relationships with convective and stratiform rainfall within a season-long convection-permitting simulation over central …
Reconciling the long-term growth of the Northeastern Tibetan Plateau and the upstream Yellow River profile
The growth history of the Northeastern Tibetan Plateau (NETP) is enigmatic, with debates on when and how the NETP significantly uplifted. Here, we use a numerical landscape evolut…
Combining “Deep Learning” and Physically Constrained Neural Networks to Derive Complex Glaciological Change Processes f…
The objectives of this paper are to investigate the tradeoffs between a physically constrained neural network and a deep, convolutional neural network and to design a combined ML …
Accuracy and Resolution of SWOT Altimetry: Foundation Seamounts
We assess the accuracy and spatial resolution of the Surface Water and Ocean Topography (SWOT) swath altimeter for measuring marine gravity anomalies. The analysis is performed at…
Measuring river surface velocity using UAS-borne Doppler radar
Using Unmanned Aerial Systems (UAS) equipped with optical RGB cameras and Doppler radar, surface velocity can be efficiently measured at high spatial resolution. UAS-borne Doppler…
GEOS Constituent Data Assimilation Beyond Aura MLS: Assimilating NASA SAGE III/ISS profiles of stratospheric water vapo…
Stratospheric water vapor (SWV) is a greenhouse gas that has a significant, yet uncertain, impact on the Earth’s climate through its radiative effect and feedback. As the climate …
Seismic Image of the Central to Southern Andean Subduction Zone Through Finite-Frequency Tomography
This study presents new seismic imaging of the Andean subduction zone through P-wave hybrid finite-frequency and ray-theoretical tomography. We measured both differential and abso…
Analysis of Electron Distribution Functions using the Gaussian Mixture Model
Velocity distribution functions (VDFs) measured by the Magnetospheric Multiscale (MMS) mission are complex 3D datasets that can be represented as a superposition of multiple beams…
How extreme apparitions of the volcanic and anthropogenic south east Asian aerosol plume simultaneously trigger and sus…
Volcanic aerosol plumes over south east Asia (SEAsia), and only over SEAsia, have always been the trigger and sustaining cause of: El Niño Southern Oscillation (ENSO) events which…
WindSightNet: the inter-annual variability of Martian winds retrieved from InSight’s seismic data with machine learning
Wind measurements from landed missions on Mars are vital to characterise the near surface atmospheric behaviour on Mars and improve atmospheric models. These winds are responsible…
Isotopic Fractionation During Sublimation of Low Porosity Ice
The isotopic effects of sublimating ice is poorly understood and disagreement from diverging results from studies spans decades. The core question is whether sublimation occurs la…
Towards Semi-Autonomous Robotic Arm Manipulation: Operator Intention Detection from Forces Feedback
In harsh environments such as those found in nuclear facilities, the use of robotic systems is crucial for performing tasks that would otherwise require human intervention. This i…
Effects of chemical alteration on frictional properties in a deep, granitic, geothermal system in Cornwall: Direct shea…
Geochemical alteration of host rocks might affect the productivity and the potential for induced seismicity of geothermal systems. In addition to natural alteration, following pro…
Unfrozen Water Content Estimation: A Comparison between Ensemble and Non-ensemble Machine Learning Models
Unfrozen water content (UWC) is a key parameter affecting a variety of soil physical-mechanical properties and processes in frozen soil systems. However, traditional estimation mo…
Global warming amplifies outdoor extreme moist heat during the Indian Summer Monsoon
Because of the climatological prevalence of hot, humid conditions, moist heat extremes are a significant challenge to the health and wellbeing of the people in India. While resear…
Hydrodynamics Matters: Unravelling the Gas Transfer Law for the Energy Dissipation Process in a High-energy Stream
Accurately quantifying air-water gas transfer is pivotal for understanding carbon cycles and assessing aquatic hypoxia prevalence. In the energy dissipation process of high-energy…
Critical Size of Silver Iodide Containing Glaciogenic Cloud Seeding Particles
Cloud seeding is considered a practical but unproved method to enhance precipitation or suppress hail, due to the insufficient knowledge of ice formation and evolution after seedi…
UCIS4EQ applied to the M7.1 2017 earthquake in Puebla (México)
The Urgent Computing Integrated Services for Earthquakes (UCIS4EQ) is proposed as a novel Urgent Computing (UC) seismic workflow that focuses on short-time reports of synthetic es…
Dynamic component of the asthenosphere: lateral viscosity variations due to dislocation creep at the base of oceanic pl…
The asthenosphere is commonly defined as an upper mantle zone with low velocities and high attenuation of seismic waves, and high electrical conductivity. These observations are u…
To exascale and beyond – The Simple Cloud-Resolving E3SM Atmosphere Model (SCREAM), a performance portable global atmos…
The new generation of heterogeneous CPU/GPU computer systems offer much greater computational performance but are not yet widely used for climate modeling. One reason for this is …
An investigation on causes of the detected surface solar radiation brightening in Europe using satellite data
Surface solar radiation is fundamental for terrestrial life. It provides warmth to make our planet habitable, drives atmospheric circulation, the hydrological cycle and photosynth…
Rapid geomagnetic variations during HSS/SIR, ICME sheath and magnetic cloud-driven geomagnetic storms
The most detrimental geomagnetically induced currents (GICs) documented to date have all taken place during geomagnetic storms. Yet, the probability of GICs throughout geomagnetic…
3D simulation of an extreme SAID flow channel
Space-based observations of the signatures associated with STEVE show how this phenomenon might be closely related to an extreme version of a SAID channel. Measurements show high …
Deciphering the Drivers Favorable for Summer Monsoon Precipitation Extremes over the Indian Himalayas
This study investigates the physical processes behind extreme precipitation events (EPEs) in the Himalayas, notorious for causing frequent floods and significant loss of life and …
Wave-Convection Interactions Amplify Convective Parameterization Biases in the South Pacific Convergence Zone
Climate models have long-standing difficulties simulating the South Pacific Convergence Zone (SPCZ) and its variability. For example, the default Zhang-McFarlane (ZM) convection s…
Frictional Properties of Feldspar-chlorite Altered Gouges and Implications for Fault Reactivation in Hydrothermal Syste…
As a particularly common minerals in granites, the presence of feldspar and altered feldspar-chlorite gouges at hydrothermal conditions have important implications in fault streng…
Astronomical calibration of the Ocean Anoxic Event 1b and its implications for the cause of mid-Cretaceous events: a mu…
Cyclostratigraphic analyses were performed on magnetic susceptibility (MS), and elemental Ti and Fe series along the upper Aptian-lower Albian interval of the Poggio le Guaine (PL…
The Spread of the Hunga Tonga H2O Plume in the Middle Atmosphere Over the First Two Years Since Eruption
The eruption of Hunga Tonga in January 2022 injected a large amount of water into the stratosphere. Satellite measurements from Aura Microwave Limb Sounder (MLS) show that this wa…
Simulating mixed-phase open cellular clouds observed during COMBLE: Evaluation of parameterized turbulence closure
Marine cold-air outbreaks, or CAOs, are airmass transformations whereby relatively cold boundary layer (BL) air is transported over relatively warm water. Such convectively-driven…
Impact of momentum perturbation on convective boundary layer turbulence
Mesoscale-to-microscale coupling is an important tool to conduct turbulence-resolving multiscale simulations of realistic atmospheric flows, which are crucial for applications ran…
Aspect Differences in Vegetation Type Drive Higher Evapotranspiration on a Pole-facing Slope in a California Oak Savanna
Quantifying evapotranspiration is critical to accurately predict vegetation health, groundwater recharge, and streamflow generation. Hillslope aspect, the direction a hillslope fa…
Sensitivity of the Shallow-to-Deep Convective Transition to Moisture and Wind Shear in the Amazon
Deep convection is the primary influence on weather and climate in tropical regions. However, understanding and simulating the shallow-to-deep (STD) convective transition has long…
Stratigraphic reconstruction and analysis of the delta remnant Kodiak in Jezero Crater, Mars
We analyze Kodiak, an eroded delta remnant in Jezero Crater, Mars, using several hundred images from the Mastcam-Z and SuperCam instruments on the Mars 2020 Perseverance Rover. We…
Accelerating Seafloor Uplift of Submarine Caldera near Sofugan Volcano, Japan, Resolved by Distant Tsunami Recordings
On 8 October 2023 UTC, significant tsunamis were observed around Japan without any major tsunamigenic earthquake, associated with a series of 14 successive minor earthquakes (mb =…
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