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Showing 2901 to 2950 of 59105 works
The morphology and scaling of tidal dunes with respect to depth: insights into the form roughness associated with chann…
The deposits of subaqueous dunes are a fundamental building block of verticallystacked alluvium in river to tidal settings and are responsible for producing the largest componen…
Subduction initiation at the corner of small oceanic basin
In Southeast Asia, emerging subduction zones often appear to begin at the corners of small oceanic basins, which have a triangular-indenter continent–ocean boundary geometry. To i…
Testing Mantle Convection Simulations with Paleobiology and Other Stratigraphic Observations: Examples from Western Nor…
Mantle convection plays a fundamental role in driving evolution of oceanic and continental lithosphere. In turn it impacts a broad suite of processes operating at or close to Eart…
Quantifying magma overpressure beneath a submarine caldera: A mechanical modeling approach to tsunamigenic trapdoor fau…
Submarine volcano monitoring is vital for assessing volcanic hazards but challenging in remote and inaccessible environments. In the vicinity of Kita-Ioto Island, south of Japan, …
Bayesian estimation of past astronomical frequencies, lunar distance, and length of day from sediment cycles
Astronomical cycles recorded in stratigraphic sequences offer a powerful data source to estimate Earth’s axial precession frequency k, as well as the frequency of rotation of the …
Physics-Informed Neural Networks for fault slip monitoring: simulation, frictional parameter estimation, and prediction…
The episodic transient fault slips called slow slip events (SSEs) have been observed in many subduction zones. These slips often occur in regions adjacent to the seismogenic zo…
Gas seepage and pockmark formation from subsurface reservoirs: Insights from table-top experiments
Pockmarks are morphological depressions commonly observed in ocean and lake floors. Pockmarks form by fluid (typically gas) seepage thorough a sealing sedimentary layer, deforming…
Statistical studies of plasma structuring in the auroral ionosphere by the Swarm satellites
This study uses over two years of 16 Hz density measurements, 50 Hz magnetic field data and ROTI data from the Swarm mission to perform long term statistics of plasma structuring …
Understanding the fate of H2S injected in basalts by means of time-domain induced polarization geophysical logging
To help meet emission standards, hydrogen sulfide (H2S) from geothermal production may be injected back into the subsurface, where basalt offers, in theory, the capacity to minera…
Improving signal-to-noise ratios of ambient noise cross-correlation functions using local attributes
For seismographic stations with short acquisition duration, the signal-to-noise ratios (SNRs) of ambient noise cross-correlation functions (CCFs) are typically low, preventing us …
Prolonged multi-phase magmatism due to plume lithosphere interaction as applied to the High Arctic Large Igneous Provin…
The widespread High Arctic Large Igneous Province (HALIP) exhibits prolonged melting over more than 50 Myr, an observation that is difficult to reconcile with the classic view of …
Genes and genetic mechanisms contributing to fall armyworm resistance in maize
Maize (Zea mays L.) is a crop of major economic and food security importance globally. The fall armyworm (FAW), Spodoptera frugiperda, can devastate entire maize crops, especially…
An empirical model of the occurrence rate of low latitude post-sunset plasma irregularities derived from CHAMP and Swar…
The prediction of post-sunset equatorial plasma depletions (EPDs), often called ionospheric plasma bubbles, has remained a challenge for decades. In this study, we introduce the I…
Evaluation of the Empirical Scaling Factor of Joule Heating Rates in TIE-GCM with EISCAT Measurements
Joule heating is one of the main energy inputs into the thermosphere-ionosphere system. Precise modeling of this process is essential for any space weather application. Existing i…
Passive source reverse time migration based on the spectral element method
Increasing deployment of dense arrays has facilitated detailed structure imaging for tectonic investigation, hazard assessment and resource exploration. Strong velocity heterogene…
Structure of the bottom boundary current South of Iceland and spreading of deep waters by submesoscale processes
The northeastern part of the North Atlantic subpolar gyre is a key passage for the Atlantic Meridional Overturning Circulation upper cell. To this day, the precise pathway and int…
A composite seismic source model for the first major event during the 2022 Hunga (Tonga) volcanic eruption
The violent eruption of the Hunga (Tonga) submarine volcano on 15 January 2022 caused a 58 km-heigh ash plume, catastrophic tsunami, and significant global seismic and infrasound …
Redox potential as a soil health indicator -- how does it compare to existing methods?
Soil health is the capability of soil to provide ecosystem services. These can be quantified through multiple separate indicators (N-mineralization, water infiltration, aggregate …
COVER CROP COMPOSITION IN LONG-TERM NO-TILL SOILS IN SEMI-ARID ENVIRONMENTS DO NOT INFLUENCE SOIL HEALTH MEASUREMENTS
Evaluating the influence of grass or broadleaf cover crops on soil health measurements is common in the U.S Midwest. However, the comparison among different cover crop mixtures, i…
Haplotyping interspecific hybrids by dual alignment to both parental genomes
Sequencing-based genotyping of heterozygous diploids requires sufficient depth to accurately call heterozygous genotypes. In interspecific hybrids, alignment of reads to both pare…
Long-wave isentropic ocean-atmosphere dynamics: providing faster-than-real-time, predictive modelling of the 2022 Hung…
Starting from the fully-compressible Euler equations, a two-way-coupled system governing the long-wave behaviour of thin layers (with respect to the radius of Earth) representing …
Drip irrigation soil-adapted sector design and optimal location of moisture sensors in vineyard plots: a proposed actio…
To optimise sector design in drip irrigation systems, a protocol based on the use of soil apparent electrical conductivity (ECa) data is presented and applied in a commercial vine…
Development of 3-D topometric imaging and 2-D photogrammetry methods for high-throughput phenotyping of perennial ryegr…
Advances in technology have increased adoption of high-throughput phenotyping (HTP) methodologies, potentially replacing laborious and time-consuming measurements and data recordi…
Genomic approaches to enhance adaptive plasticity to cope with soil constraints amidst climate change in wheat
Climate influences on below-ground plant traits seldom receive due attention. Climate change is varying the availability of resources, soil physical properties, rainfall events, s…
From Disorder to Order: Inheritance of Magnetic Remanence in Tetrataenite-Bearing Meteorites From Multi-Phase Micromagn…
Iron meteorites are believed to be fragments of mantle-stripped planetary cores ejected during catastrophic collisions. They are, therefore, a unique class of material, as they co…
Effect of particulate matter on biofilm stability in water supply network
The safety of water supply network has always been a concern. The biofilm attached on the pipes will fall into pipe-water under the disturbance, which becomes a potential threat t…
Harnessing AOS Observations for Advanced Understanding of Cloud Radiative Fluxes Introduction
Understanding the complexities of cloud-sky radiative fluxes is crucial for improving numerical predictions of climate change. NASA's upcoming Atmosphere Observing System (AOS) mi…
Weather whiplash in a terrestrial polar ecosystem following the March 2022 Antarctic weather anomaly
Record high temperatures were documented in the McMurdo Dry Valleys, Antarctica, on March 18, 2022, exceeding average temperatures for that day by nearly 30°C. Satellite imagery a…
Genome-wide association analysis for emergence of deeply sown rice ( Oryza sativa ) reveals novel aus-specific phytohor…
Dry direct-seeded rice (dry-DSR) is typically sown deeply to circumvent the need for irrigation, and thus seedling emergence is a crucial trait affecting plant stand and yield. To…
Unveiling the Dynamics of Mantle Plumes Initiated by Rayleigh-Taylor Instabilities: Impact of Layer-Parallel Global Flo…
Mantle plumes arising from deep sources in the Earth are thought to have played a critical role in determining the planetary geodynamics. The plumes originate mostly from gravit…
Genomic prediction with machine learning in sugarcane, a complex highly polyploid clonally propagated crop with substan…
Sugarcane has a complex, highly polyploid genome with multi-species ancestry. Additive models for genomic prediction of clonal performance might not capture interactions between g…
Active K-12 Pedagogies for Geosciences: Improving Student Learning about Topographic Maps and Landscapes using Hands-on…
Hands-on activities and geospatial technologies have been shown to support students’ learning of basic geography and geoscience concepts (i.e. topographic map reading and 3D visua…
A Novel Machine Learning Approach for Cotton Yield Prediction
Cotton production in the United States has reduced since 1950. The U.S. cotton industry is committed to sustainable cotton production practices that reduce water, land, and ener…
Assessment of diurnal urban heat island (UHI) intensity in microclimatic urban environment using Local climate zone c…
Urban Heat Island (UHI) effects have significant implications on the microclimatic conditions in urban environments, impacting human health, energy consumption, and overall urba…
Crustal Structure Beneath the Cameroon Volcanic Line and Surrounding Area: Insights from Markov Chain Monte Carlo and E…
The Cameroon Volcanic Line (CVL) and other tectonic features in Cameroon remain enigmatic, prompting ongoing debates about their detailed structure, composition, and geodynamic ev…
Ice Floe Tracker: An Open-Source Tool Enabling Novel Observations of Sea Ice Motion from Visual Remote Sensing Imagery
Ice Floe Tracker is an open-source tool designed to retrieve floe-scale sea ice motion in the Arctic marginal ice zone during spring and summer. Ice Floe Tracker enables observat…
An Optimized and Focused Lithospheric Deformation Model for Reconstructing the Mesozoic Evolution of the Gulf of Mexico…
The Gulf of Mexico (GoM) is a passive rift margin that is shrouded in thick sedimentary layers, making it challenging to trace its Mesozoic evolution. Traditionally, plate tectoni…
Complex Fluid Analysis method for Subsurface CO2 Monitoring (H51X-1443 - 2023 AGU Fall Meeting)
CO2-foams show significant potential for improving mobility control in CO2 Enhanced Oil Recovery (EOR) processes and for the geological carbon sequestration. The addition of nanop…
Bayesian History Matching applied to the calibration of a gravity wave parameterization
Breaking atmospheric gravity waves in the tropical stratosphere are essential in driving the roughly two year oscillation of zonal winds in this region known as the Quasi-Biennial…
Mapping dynamic mass loss by fully decomposing glacier elevation change
Glaciers and ice sheets lose their mass by ablation (the output term of their surface mass balance) and discharging into a water body (dynamic loss). The latter is associated with…
Characterizing Deformation and Ridging in Shorefast Ice using Remote Sensing Techniques
Sea ice ridges are an important morphological feature that stabilize shorefast ice across the Northern Alaskan coastline. This stability is important to local communities and ecos…
Plausible hybrid-infrastructure alternatives for enhancing climate resilience of coastal communities -a case of megacit…
Number: 1424249 Marginalized vulnerable coastal communities living along the urban coasts are continuously under the dual threat of natural hazards and the adverse impact of infra…
Evaluation of PRISMA products over snow in the Alps and Antarctica
PRISMA is a hyperspectral satellite mission launched by the Italian Space Agency (ASI) in April 2019. The mission is designed to collect data at global scale for a variety of appl…
Clay minerals and continental-scale remagnetisation: a case study of South American Neoproterozoic carbonates
Carbonate rocks frequently undergo remagnetisation events, which can partially/completely erase their primary detrital remanence and introduce a secondary component through thermo…
Data Assimilation in Chaotic Systems Using Deep Reinforcement Learning
Data assimilation (DA) plays a pivotal role in diverse applications, ranging from climate predictions and weather forecasts to trajectory planning for autonomous vehicles. A prime…
Pan-Antarctic assessment of ice shelf flexural responses to ocean waves
Ice shelves flex in response to surface ocean waves, which imposes stresses and strains on the shelves that promote iceberg calving. Previous modelling studies of ice shelf respon…
Martian atmospheric tides revealed from MAVEN and MCS Observations
Utilizing atmospheric temperature observed from Mars Years 33 to 36 by the Imaging Ultraviolet Spectrograph (IUVS) onboard the Mars Atmosphere and Volatile Evolution (MAVEN), we d…
Rapid degassing in basaltic sills as a source of Deep Long Period volcanic earthquakes
In this paper, we present numerical modeling aimed to explain Deep Long Period (DLP) events occurring in middle-to-lower crust beneath volcanoes and often observed in association …
Integration of Marine Geology of the Strait of Gibraltar with Paleo-stress History of the Tangier Peninsula, Morocco:…
Previous workers have used stratigraphic studies to identify three potential marine gateways that connected the Atlantic and Mediterranean during the Messinian salinity crisis (M…
Transmission of Rossby waves through the Philippine Archipelago
Oceanic Rossby waves play a crucial role in shaping the physical and biological dynamics of both open and coastal oceans, especially within the tropical band spanning between the …
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