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Showing 9251 to 9300 of 22070 works
The effect of water vapor on methane adsorption in the nanopores of shale
Key points: • The detrimental impact of preadsorbed water on the methane adsorption capacity and rate is more pronounced than that of water vapor • The distributions of adsorbed m…
Full-waveform Inversion by Informed-Proposal Monte Carlo
Markov Chain Monte Carlo (MCMC) sampling of solutions to large-scale inverse problems is, by many, regarded as being unfeasible due to the large number of model parameters. This s…
Interannual variation of settling particles that reflect upper-ocean circulation in the southern Chukchi Borderland, 20…
Changes in the lower-trophic marine ecosystem and biogeochemical cycles were considered with respect to the warming Arctic Ocean. The time series monitoring of the hydrography and…
The Carbonate Veins Documenting the Tectonic Evolution of the South China Sea Continental Margin from Early Cretaceous …
The transition from active to passive continental margin of the South China Sea (SCS) is usually inferred to occur in the Late Mesozoic to Early Cenozoic. However, it is less know…
Improving Understanding of Atmospheric River Water Vapor Transport using a Three-Dimensional Straightened Composite Ana…
The irregular shapes of atmospheric rivers (ARs) and the scarcity of sounding data have hampered easy AR composite analyses and understandings about AR’s moisture transport mechan…
Distribution and export of particulate organic carbon in East Antarctic coastal polynyas
Polynyas represent regions of enhanced primary production due to the low, or absent, sea-ice cover coupled with the proximity of nutrient sources. However, studies throughout the …
Orbital Context and In Situ Observations of Nili Fossae Olivine-Carbonate
Perseverance landed at the Octavia E. Butler landing site next to the Séítah dune region in Jezero crater on 18 February 2021, in close proximity to the largest exposed carbonate …
Haline Сontrol of Unusually Deep Winter Mixing in the Gulf of Maine Investigated using a Regional Data-Assimilative Mod…
An unusually large positive salinity anomaly was observed across the eastern Gulf of Maine (GoM) in winter 2017-2018. Buoy measurements in Jordan Basin found this anomaly extended…
X Marks the Spot: Seismic Signals of Silica and Hidden Hawaiian Heterogeneities
The Hawaiian Island chain in the middle of the Pacific Ocean is a well-studied example of hotspot volcanism caused by an underlying upwelling mantle plume. However, the thermal an…
Statistical and Machine Learning Methods Applied to the Prediction of Different Tropical Rainfall Types
We explore the use of three advanced statistical and machine learning methods (a generalized linear model, random forest, and neural network) to predict the occurrence and rain ra…
PHEV! The PHysically-based Extreme Value distribution of river flows
Magnitude and frequency are prominent features of river floods informing design of engineering structures, insurance premiums and adaptation strategies. Recent advances yielding a…
Advancing Local Distance Discrimination of Explosions and Earthquakes with Joint P/S and ML-MC Classification
Classification of local-distance, low-magnitude seismic events is challenging because signals can be numerous and difficult to characterize with approaches developed for larger ma…
Intrinsic Century-Scale Variability in Tropical Pacific Sea Surface Temperatures and their Influence on Southwestern US…
Hydroclimate variability of the southwest United States (SWUS) is influenced by the tropical Pacific Ocean, particularly the phase of the El Niño/Southern Oscillation (ENSO), via …
The role of clouds in coral bleaching events over the Great Barrier Reef
Thermal coral bleaching events (CBEs) over the Pacific, including those over the Great Barrier Reef (GBR), have commonly been linked to the El Niño–Southern Oscillation (ENSO), wi…
2n geometric space model of the earth's atmosphere and the periodic table of vertical changes
The earth’s atmosphere is divided into many layers. Does this divisional structure contain new laws of physics that we have not yet discovered? Here, we mainly study the structura…
Theoretical estimates of sulfoxyanion triple-oxygen equilibrium isotope effects and their implications
Triple-oxygen isotope (δ18O and Δ17O) analysis of sulfate is becoming a common tool to assess several biotic and abiotic sulfur-cycle processes, both today and in the geologic pas…
A Closer Look into Slickenlines: Deformation On and Under the Surface
Slickenlines are lineations thought to record slip motion and mechanical wear within shear fractures. Their formation mechanisms and effect on friction and fault rheology are poor…
Linking Overturning, Recirculation, and Melt in Glacial Fjords
Fjord circulation modulates the connection between marine-terminating glaciers and the ocean currents offshore. These fjords exhibit both overturning and horizontal recirculations…
Geochemistry and petrography of martian meteorite Northwest Africa 11115: A rare earth element-enriched olivine-phyric …
The shergottite family of meteorites shows a remarkable petrographic and geochemical variety, revealing information about mantle processes and basalt formation on Mars. Northwest …
Bayesian hierarchical approach to longitudinal high-throughput plant phenotyping
High-throughput plant phenotyping is increasingly implemented in a wide array of experimentation and presents challenges both logistically and analytically. Phenotype data are oft…
The role of Atmospheric rivers on monthly water availability and floods in New Zealand
This study is motivated by the potential improvement in water supply reliability and better forecasts of extreme rainfall and floods linked to Atmospheric rivers (ARs) in New Zeal…
Interplanetary Hydrogen Properties as Probes into the Heliospheric Interface
A NASA sponsored study conducted at John Hopkins University Applied Physics Lab culminated in a community-inspired heliospheric mission concept called the Interstellar Probe (ISP)…
Geomorphological analysis and Digital Elevation Model of Monad Regio, Triton
Introduction The complex geomorphology of Triton reflects its geological history [1]. The morphological heterogeneity on small scale has led to discerning three main complexes: ca…
Does Earthquake Stress Drop Increase with Depth in the Crust?
We combine earthquake spectra from multiple studies to investigate whether the increase in stress drop with depth often observed in the crust is real, or an artifact of decreasing…
Role of internal oceanic variability in the generation of South Indian Ocean Dipole
Interannual/decadal variability in the sea surface temperature at the south subtropical Indian Ocean plays a crucial modulator in the regional climate. The south Indian Ocean dipo…
High stress deformation and short-term thermal pulse preserved in exhumed lower crustal seismogenic faults (Lofoten, No…
Seismic rupture in strong, anhydrous lithologies of the lower continental crust requires high failure stress, in the absence of high pore fluid pressure. Several mechanisms propos…
Sea-ice impacts inter-annual variability in bloom phenology and carbon export
Carbon export from the ocean surface to depth is an important component of the biological carbon pump, a key regulator of the world’s climate. The Antarctic Marginal Ice Zone acco…
Possible Interior Layout of (16) Psyche Constrained by a Three-layer Model and Finite Element Model (FEM) Approach
Asteroid (16) Psyche was dominantly thought to be a remnant of a core that is a pure-metallic body because of the higher radar albedo (~0.37) detected than other main-belt asteroi…
Integrating Oyster Castles into Living Shorelines to promote coastal bays resilience to Sea Level Rise
Living shorelines are native marsh plantings that control coastal erosion and provide coastal resilience to sea level rise (SLR) by migrating upland during SLR. Living shorelines …
Organized Kinetic Energy Backscatter in the Hurricane Boundary Layer from Radar Measurements
The fluid mechanics of hurricanes strongly depends on boundary layer energetics due to the warm-core nature of the system with peak velocities located at lower levels. One barrier…
The diurnal dynamics of Gross Primary Productivity using observations from the Advanced Baseline Imager on the Geostati…
Gross Primary Productivity (GPP) is the largest flux in the global carbon cycle and satellite-based GPP estimates have long been used to study the trends and inter-annual variabil…
A STUDY ON ISOTOPE HYDROLOGY OF WARANGAL, ANDHRA PRADESH
Isotopic composition of monthly precipitation samples from Warangal, a semi arid region across Southern India was studied for a period of 12 months. During the study period, the r…
Floodplain mapping based on derived synthetic rating curves linked to simulated streamflows.
Rating curves are one of the most applied tools in hydrology for first instance flood analysis. However, there are often few of them in a watershed. One way to fill this gap is to…
Blue Flashes as Counterparts to Narrow Bipolar Events: the Optical Signal of Shallow In-Cloud Discharges
Narrow Bipolar Events (NBEs) are powerful radio emissions from thunderstorms which have been recently associated with blue optical flashes on cloud tops and attributed to extensiv…
Energetic Requirements for Dynamos in the Metallic Cores of Super-Earth and Super-Venus Exoplanets
Super-Earth and super-Venus exoplanets may have similar bulk compositions but dichotomous surface conditions and mantle dynamics. Vigorous convection within their metallic cores m…
Predicting Patagonian Landslides: Roles of Forest Cover and Wind Speed
Dense tree stands and high wind speeds characterize the dense temperate rainforests of southern Chilean Patagonia, where landslides frequently strip hillslopes of soils, rock, and…
Tsunami waveform inversion of the 2021 Loyalty Islands earthquake and implications for tsunami forecasting for New Zeal…
A tsunamigenic earthquake occurred in the Southern New Hebrides subduction zone on the 10 th of February 2021. The tsunami was observed at coastal gauges in the islands around the…
The Mantle Seismic Structure below Canada and Alaska Constrained by a New Absolute P-wavespeed Tomographic Model
Mapping absolute P-wavespeeds in the Canadian and Alaskan mantle will further our understanding of its present-day state and evolution. S-wavespeeds are relatively well constraine…
Plasma Parameters from Quasi-Thermal Noise Observed by Parker Solar Probe: A New Model for the Antenna Response
Quasi-Thermal Noise (QTN) spectroscopy is a reliable diagnostic routinely used for measuring electron density and temperature in space plasmas. The observed spectrum depends on bo…
Characteristics of Intense Current-carrying Structures in the Terrestrial Magnetosheath
We exploit novel “string-of-pearls” configuration of NASA’s Magnetospheric Multiscale mission to investigate properties of structures within the Earth’s magnetosheath that are sho…
Exploring the Potential of Long Short-Term Memory Networks for Improving Understanding of Continental- and Regional-Sca…
Accurate estimation of the spatio-temporal distribution of snow water equivalent is essential given its global importance for understanding climate dynamics and climate change, an…
Hourly air temperature forecasting by downscaling WRF simulations over complex topography: A case study of Chongli Dist…
Accurate and high-resolution air temperature prediction is important in many different applications. Hourly air temperature forecasting in mountainous areas is necessary and impor…
Degradation at the InSight Landing Site, Homestead Hollow, Mars: Constraints from Rock Heights and Shapes
Rock heights and three-dimensional shapes around the InSight lander in Homestead hollow, Mars, provide new constraints on modification of the degraded 27 m in diameter impact crat…
A case study in support of closure of bow shock current through the ionosphere utilizing multi-point observations and s…
On the bow shock in front of Earth flows current due to the curl of interplanetary magnetic field across the shock. It is uncertain whether the bow shock current closes on the mag…
Popular extreme sea level metrics can better communicate impacts
Estimates of changes in the frequency or height of contemporary extreme sea levels (ESLs) under various climate change scenarios are often used by climate and sea level scientists…
Discontinuity of diurnal temperature range along elevated regions
Low-clouds and fog moderate the diurnal temperature range (DTR) through radiative effects. Consequently, frequent foggy events make montane cloud forests (MCFs) stable and unique.…
Characterizing the Final Stage of Earthquake Nucleation
Previous experiments and modeling on the nucleation process of an earthquake reveal accelerating slip and development of a final patch of fixed or expanding length, but whether th…
Updated Radiative Transfer Model for Titan: Validation on VIMS/Cassini Observations of the Huygens Landing Site and App…
Titan is a prime target for astrobiological research. Organic materials from atmospheric chemistry precipitate on the surface and are subject to geological processes (e.g. eolian …
Coupled poroelastic modelling of hydraulic fracturing-induced seismicity: Implications for understanding the post shut-…
Post-injection seismicity associated with hydraulic stimulation has posed great challenges to hydraulic fracturing operations. This work aims to identify the causal mechanism of t…
Modeling of large wood export at a watershed scale
This study proposed a quantitative model for analyzing the mass balance of large wood and its export on an annual scale at watershed scale. The study sites were five dam reservoir…
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