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Showing 8501 to 8550 of 22070 works
Stress transfer along the western boundary of the Bayan Har Block on the Tibet Plateau from the 2008 to 2020 Yutian ear…
Eight Ml≥7.0 earthquakes have occurred around the Bayan Har block, NW Tibet, China, since 2000, resulting in a large number of casualties and countless economic loss. Near the wes…
GEOMORPHIC BOUNDARIES WITHIN RIVER NETWORKS
Author contributions: MWS and MCT contributed equally to all aspects of this research and manuscript preparation. Key Points 1. The physical character of different functional proc…
Super Dual Auroral Radar Network Expansion and its Influence on the Derived Ionospheric Convection Pattern
The Super Dual Auroral Radar Network (SuperDARN) was built to study ionospheric convection and has in recent years been expanded geographically. Alongside software developments, t…
States of in-situ stress in the Duvernay East Shale Basin and Willesden Green of Alberta, Canada: variable in-situ stre…
Fault slip is controlled by the normal and shear tractions on a fault plane. A full understanding of the factors influencing induced seismicity requires quantitative knowledge of …
Climatological Statistics of Extreme Geomagnetic Fluctuations with Periods from 1 s to 60 min
Extreme fluctuations in the horizontal geomagnetic field ( dB h /dt ) may be generated at the Earth’s surface by electrical currents in the ionosphere and magnetosphere. Using a g…
Can the magmatic conditions of the Martian nakhlites be discerned via investigation of clinopyroxene and olivine crysta…
Deformation is a near ubiquitous process that is observed within nearly all naturally forming rocks, terrestrial and extra-terrestrial. Large area electron backscatter diffraction…
Development of a mobile, high-throughput, and low-cost plant growth phenotyping system
Plant growth is the product of gene by environment (GxE) interactions during plant development. Effective characterization of plant growth under various conditions provides insigh…
Using Remote Sensing and Machine Learning to Estimate Groundwater Use in the Mississippi Alluvial Plain
In this study, we improve estimates of groundwater usage across the Mississippi Alluvial Plain (MAP) in support of an ongoing USGS effort to model the groundwater resources of the…
Deep Interactive Annotation to Support Hyperspectral Image Analysis
Annotation plays an essential and important role in the performance of machine learning approaches. However, manually labeling objects accurately is often time-consuming, especial…
Dancing Rivers in the Amazon Basin, the science behind the movement of rivers: A data visualization platform
Through time rivers move, create erosion, deposit sediments and, consequently, change their shape, however, these movements are different for each river, since each one has specif…
Determining the Sources and Transport of Brown Carbon Using Radionuclide Tracers and Modeling
The isotope tracer technique plays a key role in identifying the sources and atmospheric processes affecting pollution. The sources of brown carbon (BrC) at Guangzhou during 2017-…
On rebuilding landslide parameters from long-period seismic waveform inversion
Landslide force history inverted from long-period seismic records for a landslide has been used to extract its physical parameters. An important precondition is that the inverted …
Investigating the Effects of Land Use Change on Subsurface, Surface and Atmospheric Branches of the Hydrologic Cycle in…
Since the 1970s, agricultural production in central Argentina has shifted away from perennial crops and grasses towards annual crops, largely soy. In this work we use observations…
Air-sea interactions and water mass transformation during a katabatic storm in the Irminger Sea
We use a global 5-km resolution model to analyse the air-sea interactions during a katabatic storm in the Irminger Sea originating from the Ammassalik valleys. Katabatic storms ha…
The Seasonal Cycle of Significant Wave Height in the Ocean: Local vs Remote Forcing
Significant wave height (SWH) stems from a combination of locally generated “wind-sea” and remotely generated “swell” waves. In the Northern and Southern Hemispheres, wave heights…
Determination of Phase-Velocity Dispersion Curves of Rayleigh Surface Waves from Tidal Gravimetric Recordings of Earthq…
This study presents the novel application of tidal gravimetric data in the determination of phase-velocity dispersion curves of Rayleigh surface waves. Tidal gravimeters are capab…
Coupled Hydromechanical Modeling of Induced Seismicity from CO2 Injection in the Illinois Basin
Injection of CO2 for geologic carbon sequestration (GCS) into deep sedimentary formations involves fluid pressure increases that engage hydromechanical processes that can cause se…
Characteristics of Tropical-Cyclone Turbulence and Intensity Predictability
This study examines the characteristics of tropical cyclone (TC) turbulence and its related predictability implications. Using the Fourier-Bessel spectral decomposition for convec…
Widespread Megaripple Activity Across the North Polar Ergs of Mars
The most expansive dune fields on Mars surround the northern polar cap where various aeolian bedform classes are modified by wind and ice. The morphology and dynamics of these rip…
Mechanisms of Fast Walker Circulation Responses to CO2 Forcing
The Walker circulation (WC) responds to CO 2 forcing at both short and long timescales. The fast response accounts for a substantial portion of the total responses, but its mechan…
Arctic rift system driven by a giant stagnant slab
A detailed 3-D tomographic model of the whole mantle beneath the circum-Arctic region is obtained by applying an updated global tomography method to a large amount of P -wave arri…
Deep Ocean storage of heat and CO2 in the Fram Strait, Arctic Ocean during the last glacial period
The Fram Strait is the only deep gateway between the Arctic Ocean and the Nordic Seas and thus is a key area to study past changes in ocean circulation and the marine carbon cycle…
Impacts of Tropical Precipitation on the Uncertainty of the North Pacific Subtropical High's Response to Anthropogenic …
The variability in summer North Pacific subtropical high (NPSH) has a significant impact on the monsoon and typhoon over the East Asia and the drought over the California. However…
A global wave parameter database for geophysical applications. Part 3: improved forcing and spectral resolution
Numerical wave models are used for a wide range of applications, from the global ocean to coastal scales. Here we report on significant improvements compared to the previous hindc…
Variation of ice microphysical properties with temperature and humidity at tops of convective clouds
A better understanding of the many interacting processes governing the evaluation of ice in natural clouds is required to improve the representation of ice clouds in global circul…
Objective Identification and Climatic Characteristics of Heavy Precipitation Northeastern China Cold Vortex Events
The northeastern China cold vortex (NCCV) has an important influence on the regional rainstroms over East Asia. Using the National Centers for Environmental Prediction Final (FNL)…
Microplastic Deposition and its Response to Extreme Flood Events: A Case Study of Yangtze Estuary, China
Microplastics are ubiquitously found in the environment; however, our knowledge about their storage and mechanism in the burial record is scarce. We selected a core (CCYY1) in the…
Contributions of Transient Rheology to Geophysical Deformation: Examples from the Deep to Shallow Earth
In this talk, we first examine how microphysical models of transient deformation might manifest at the macroscale which may be summarized as a distinct frequency dependence of dis…
Comparison of a Neutral Density Model With the SET HASDM Density Database
The EXospheric TEMeratures on a PoLyhedrAl gRid (EXTEMPLAR) method predicts the neutral densities in the thermosphere. The performance of this model has been evaluated through a c…
The Mansurov Effect: Real or a statistical artefact?
The Mansurov Effect is related to the interplanetary magnetic field (IMF) and its ability to modulate the global electric circuit, which is further hypothesized to impact the pola…
Trends in Downwelling Longwave Radiance over the Southern Great Plains
Downwelling longwave radiation (DLR) is an important part of the surface energy budget. Spectral trends in the DLR provide insight into the radiative drivers of climate change. In…
PlantIT: Containerized phenotyping in the cloud
Continuous collection and analysis of high-resolution phenotype data is critical to develop crops resilient to the consequences of climate change. Though web-accessible tools for …
Avoiding More Accurate and Less Robust Models: Mistakes and Pitfalls in Training Flare Forecasting Models
In spite of more than 20 years of substantial advances, solar flare prediction remains a largely outstanding problem. This is partly because of the scarcity of major flares. Effec…
A new divergence method to quantify methane emissions using observations of Sentinel-5P TROPOMI
Key points: • A new divergence method is developed to estimate methane emissions based on satellite observations, requiring no a priori emissions. • The applicability of this meth…
A generalized marginal stability criterion for shear-induced ocean interior diapycnal turbulent mixing
Turbulent mixing induced by breaking internal waves is key to the ocean circulation and global tracer budgets. While the classic marginal shear instability of Richardson number ∼ …
Hydro-mechanical interactions of a rock slope with a retreating temperate valley glacier
Rock slope failures often result from progressive rock mass damage which accumulates over long timescales, and is driven by changing environmental boundary conditions. In deglacia…
On the role of serial correlation and field significance in detecting changes in extreme precipitation frequency
Statistical trend analyses of observed precipitation (P) time series are key to validate theoretical arguments and climate projections suggesting that extreme P will increase in a…
The Silence of Canadian Cities: The Seismology Impact of the Covid19 Lockdown
On 11 March 2020, the World Health Organization (WHO) declared Coronavirus disease (COVID-19) as a pandemic. The announcement had a cascading effect as countries around the world …
Defining and Classifying the Formation, Characterization, and Significance of Karst Hyporheic Zones in a Karst Peak-For…
Groundwater (GW)-surface water (SW) interactions in karst areas may have a strong impact on the quantity and quality of the groundwater system. Although knowledge of karst hydrolo…
Seasonal and regional signatures of ENSO in upper tropospheric jet characteristics from reanalyses
Regionally and seasonally resolved relationships of upper tropospheric jet variability to El Niño / Southern Oscillation (ENSO) in multiple reanalyses are presented, with subtropi…
Fracture network localization preceding catastrophic failure
We quantify the evolving spatial distribution of fracture networks throughout six in situ X-ray tomography triaxial compression experiments on monzonite and granite at confining s…
MODELLING M(3000)F2 AT AN AFRICAN EQUATORIAL LOCATION FOR BETTER IRI-MODEL PREDICTION
The F2-layer propagation factor M(3000)F2 is important to ionospheric studies owning to its use in HF radio communication/ionospheric modelling. This study focused on reducing the…
Variability of the Reconnection Guide Field in Solar Flares
Solar flares may be the best-known examples of the explosive conversion of magnetic energy into bulk motion, plasma heating, and particle acceleration via magnetic reconnection. T…
Atmospheric variations in summertime column integrated CO2 on synoptic and seasonal time scale over the U.S.
Past studies have demonstrated that synoptic weather events play an important role in the spatial and temporal variations of atmospheric carbon dioxide ( within and above the boun…
Ionospheric Disturbances Associated with Earthquake Precursors Investigated by GNSS
The prediction of natural disasters in general and earthquakes, in particular, is becoming increasingly critical in providing early warnings and mitigating catastrophes’ effects. …
Combined Sewer Overflow and flooding Reduction through a Safe Real-Time Control based on Multi-Reinforcement Learning, …
Real-time control (RTC) has been proved an efficient tool in assisting combined sewer systems with their response to different rainfalls and enhance the performance of combined s…
Changes to Tropical Eastern North Pacific Intraseasonal Variability under Global Warming -- Implications for Tropical C…
Changes to the eastern North Pacific tropical intraseasonal oscillation (ISO) at the end of the 21 st Century and implications for tropical cyclone (TC) genesis are examined in th…
Responses of Macroinvertebrate Assemblages to Flow Variations in the Qinghai-Tibet Plateau: Establishment and Applicati…
Anthropogenic impacts and climate change modify instream flow, altering ecosystem services and impacting on aquatic ecosystems. Alpine rivers and streams on the Qinghai-Tibet Plat…
Buoyancy-driven exhumation of lawsonite-bearing eclogites and blueschists in the Lanling area, central Qiangtang Terran…
The exhumation mechanism of the low-temperature/high-pressure (LT/HP) rocks, is critical for understanding the formation of the central Qiangtang metamorphic belt (CQMB), Tibetan …
Altered Mantle Fabric Beneath the Mid-Continent Rift
We present new, densely sampled shear-wave splitting results from southern Minnesota and adjacent areas of neighboring states, sampling the southwestern limit of the Archean Super…
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