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Showing 4501 to 4550 of 59105 works
Preliminaries for muon tracking in GEANT4 simulations
The preliminary information about the muon tracking by means of the GEANT4 simulations is summarized in accordance with the physics reference manual of GEANT4 10.7.
SPAM: Solar Spectrum Prediction for Applications and Modeling
Solar Spectrum Prediction for Applications and Modeling (SPAM) – a new empirical model of solar X-Ray, EUV and FUV radiation flux at the top of the Earth’s atmosphere. The model i…
An Analytical Model for the Clear-Sky Longwave Feedback
Estimates of Earth’s clear-sky longwave feedback from climate models and observations robustly give a value of approximately -2 W/m^2/K, suggesting that this feedback can be estim…
Moving land models towards actionable science: A novel application of the Community Terrestrial Systems Model across Al…
The Arctic hydrological system is an interconnected system that is experiencing rapid change. It is comprised of permafrost, snow, glacier, frozen soils, and inland river systems.…
Turbulence signatures in high--latitude ionospheric scintillation
Ground-based amplitude measurements of GNSS signal during ionospheric scintillation are analyzed using prevalent data analysis tools developed in the fields of fluid and plasma tu…
Something missing: Andean cryosphere research comic (version: Français)
A short watercolor comic about the broken connection between humans and mountains. Funded by Sharing Science grants of the AGU, 2021.
Improving and harmonizing El Niño recharge indices
El Niño Southern Oscillation (ENSO) is the leading mode of interannual climate variability, with large socioeconomical and environmental impacts. The main conceptual model for ENS…
CORN SKELETON RECONSTRUCTION BY UAS-BASED STRUCTURE FROM MOTION
Physiological dynamics at plant level are essential but also challenging for precision agriculture applications linked to plant phenotyping. In this study, we explore not only the…
Generation of the Southern Ocean pycnocline by sea ice-ocean interactions
The ocean’s permanent pycnocline is a layer of elevated stratification that separates the well-ventilated upper ocean from the more slowly-renewed deep ocean. Despite its pivotal …
Localization of deformation prone sites in the Himalayas using multi-temporal InSAR and Sentinel-1 images
Over the last two decades, the Himalayan region is affected by deformation events such as landslides and land subsidence, spread over different regions located within the Himalaya…
Salt transport regimes caused by tidal and subtidal processes in narrow estuaries
Tidally averaged transport of salt in estuaries is controlled by various subtidal and tidal processes. In this study we show the relative importance of various subtidal and tidal …
Evaluating Pretraining Methods for Deep Learning on Geophysical Imaging Datasets
Machine learning has the potential to automate the analysis of vast amounts of raw geophysical data, allowing scientists to monitor changes in key aspects of our climate such as c…
Modeling monthly and seasonal Michigan snowfall based on machine learning: A multiscale approach
Snowfall has important significance in water resources management and disaster prevention worldwide. Accurate prediction of both mean and extreme snowfall is challenging because o…
Correcting a coarse-grid climate model in multiple climates by machine learning from global 25-km resolution simulations
Bretherton et al. (2022, https://doi.org/10.1029/2021MS002794) demonstrated a successful approach for using machine learning (ML) to help a coarse-resolution global atmosphere mod…
Analysis of hydrological spatial and temporal characteristic scales over the Contiguous United States using GOES-16 Lan…
Land surface features such as elevation, soils, land use, and vegetation fluctuate on scales ranging from millimeters to hundreds of kilometers. The state of the land surface and …
Mantle Phase Changes Detected from Stochastic Tomography
Stochastic tomography, made possible by dense deployments of seismic sensors, is used to identify previously undetected and poorly detected changes in the composition and mineral …
Introduction to Special Collection “The Exceptional Arctic Stratospheric Polar Vortex in 2019/2020:Causes and Consequen…
This paper introduces the special collection in Geophysical Research Letters and Journal of Geophysical Research: Atmospheres on the exceptional stratospheric polar vortex in 2019…
Persistent pressure gradient as a driver of the substorm current wedge: A statistical study
The substorm current wedge (SCW) is believed to be driven by pressure gradients and vortices associated with fast flows. Therefore, it is expected that relevant observations are o…
Earthquakes as dynamic fracture phenomena
A large earthquake unlocks a fault-zone via dynamic rupture while releasing part of the elastic energy stored during the interseismic stage. As earthquakes occur at depth, the ana…
Interannual variations in nutrient supply in the East China Sea influenced by the Zhejiang coastal upwelling and Kurosh…
The East China Sea (ECS) is a marginal sea with high productivity, especially in the summer. In the Zhejiang coastal region of the ECS, the large local phytoplankton biomass in su…
A multi-task deep learning scheme using receiver functions to study crustal tectonics and its application to the middle…
We propose a novel scheme that applies a multitasking convolutional neural network to learn the back azimuthal behavior from receiver function seismograms, which can effectively p…
Comment on “Troshichev et al. 2020: The PC index variations during 23/24 solar cycles: relation to solar wind parameter…
Examination of the contribution from O.A. Troshichev, S. Dolgacheva, N.A. Stepanov, and D.A. Sormakov: “The PC index variations during 23/24 solar cycles: relation to solar wind p…
Laboratory Earthquakes Simulations - Typical Events, Fault Damage, and Gouge Production
We propose a numerical model of laboratory earthquake cycle inspired by a set of experiments performed on a triaxial apparatus on sawcut Carrara marble samples. The model couples …
Quantitative Analysis of the Upwelling Behavior of Methane Bubbles in Nature and Numerical Simulations
In this study, we conducted a quantitative analysis of the behavior of ascending methane bubbles, which were filmed at two natural gas seep sites and reproduced by numerical simul…
Temperature variations during the past 20 ka at Huguangyan Maar Lake in tropical China and dynamic link
Discrepancies exist in global temperature evolution from the Last Glacial Maximum to the present between model simulations and proxy reconstruction. This debate is critical for un…
A Spectral Rotary Analysis of Gravity Waves: An Application during one of the SOUTHTRAC Flights
To understand the main orographic and non-orographic sources of gravity waves (GWs) over South America during an Experiment (Rapp et al, 2021, https://doi.org/10.1175/BAMS-D-20-00…
Evaluation of CMIP6 GCMs over the CONUS for downscaling studies
Despite the necessity of Global Climate Models (GCMs) sub-selection in the dynamical downscaling experiments, an objective approach for their selection is currently lacking. Build…
Assessing future projections of warm-season marine heatwave characteristics with CMIP6 models
Marine heatwaves in the summertime when temperatures may exceed organisms’ thermal thresholds (“warm-season MHWs”) have huge impacts on the health and function of ecosystems like …
Inclusion of a dry surface layer and modifications to the transpiration and canopy evaporation partitioning in the Cana…
Land surface/Earth System models depend upon accurate simulation of evapotranspiration (ET) to avoid excessive biases in simulated energy, water, and carbon cycles. The Canadian L…
Upward bipolar lightning flashes originated from interaction with intracloud lightning
The present work shows high-speed videos of two upward flashes that started with positive upward leaders and, instead of being followed by negative subsequent return strokes, they…
Brewster’s Incident Angle: Extension of Asymmetric Backward Peaking Radiation Pattern from a Relativistic Particle Acce…
Previously the radiation patterns of combined parallel and perpendicular motions from the accelerated relativistic particle at low and high frequencies of the bremsstrahlung proce…
The effect of faceting on olivine wetting properties
Grain-scale pore geometry primarily controls the fluid distribution in rocks, affecting material transport and geophysical response. The dihedral angle (Θ) in the olivine–fluid sy…
Icequake-magnitude scaling relationship along a rift within the Ross Ice Shelf, Antarctica
Fractures within ice shelves are zones of weakness, which can deform on timescales from seconds to decades. Icequakes produced during the fracturing process show a higher b-value …
Satellite Gravimetry Level-2 Data De-striping Based on Signal Contrast for Small-scale Applications
As a result of uneven density of data collection, level-2 satellite gravimetry data suffer from global north-south striping. By applying various filtering methods, several studies…
Distributed Water Storage Measured by Fiber Optic Distributed Acoustic Sensing
The storage of fluids in the subsurface is critical for a broad spectrum of applications including managed aquifer recharge, storage of liquified carbon dioxide and hydrogen, geot…
A Global Survey of Rotating Convective Updrafts in the GFDL X-SHiELD 2021 Global Storm Resolving Model
We present the characteristics of rotating convective updrafts in the 2021 version of GFDL’s Experimental System for High-resolution prediction on Earth-to-Local Domains (X-SHiELD…
Observation of scintillation enhancements and large-scale structures within the equatorial ionization anomaly during a …
Total Electron Content (TEC) and L-band scintillations measured by several networks of GPS and GNSS receivers that operate in South and Central America and the Caribbean region ar…
A Short Note On The Basins In The Light Of The Tectonics In Continental Regime
Investigating basins in light of tectonics provides clues to understanding geological happenings serving a great deal to explore base metal deposits & hydrocarbon reservoirs depen…
RCS Diagnostic Imaging Using Parameter Extraction Technique of State Space Method
The signature extraction and processing are the key aspects of enhancing recognition ability for radar target characteristics. In this paper, to reveal the intrinsic property of t…
Global magnetohydrodynamic magnetosphere simulation with an adaptively embedded particle-in-cell model
We perform a geomagnetic event simulation using a newly developed magnetohydrodynamic with adaptively embedded particle-in-cell (MHD-AEPIC) model. We have developed effective crit…
Substorm Activity as a Driver of Energetic Pulsating Aurora
Pulsating aurora are common diffuse-like aurora. Studies have suggested that they contain higher energy particles than other types and are possibly linked to substorm activity. Th…
Thermal video recording while walking: A simple method for mapping groundwater discharge points along forested headwate…
Groundwater discharge along channels can affect stream runoff, chemistry, and ecological communities. Although the spatial distribution of groundwater springs can be investigated …
How have Divergent Global Emission Trends Influenced Long-range Transported Ozone to North America?
Several locations across the United States in non-compliance with the national standard for ground-level ozone (O 3 ) are thought to have sizeable influences from distant extra-re…
Theoretical investigation of the excitation of leaky modes for multi-layered models
With the advent of the array-based methods, the observations of leaky modes from earthquake records and ambient noise are frequently reported. It is urgently needed to have an eff…
Influence of Wind on Stratification and Mixing in Mobile Bay, Alabama, a Wide Microtidal Estuary
Extensive research has shown that wind has a strong influence on estuarine circulation and salt transport. However, the response to wind forcing in estuarine systems presents chal…
Oblique propagation of mountain waves to the upwind side of the Andes observed by GLORIA and ALIMA during the SouthTRAC…
Gravity waves (GW) carry energy and momentum from troposphere to the middle atmosphere and have a strong influence on the circulation there. Global atmospheric models cannot fully…
Seismogenic Inversion Layer: Depth-dependent Slow Earthquakes Controlled by Temperature Dependence of Brittle-ductile T…
The discovery of slow earthquakes illuminates the existence of a strange depth dependence of seismogenesis, which contradicts the common understanding of smooth brittle/seismic-du…
A secondary zone of uplift measured after megathrust earthquakes: caused by early downdip afterslip?
A secondary zone of surface uplift (SZU), located ~300 kilometers from the trench, has been measured after several megathrust earthquakes. The SZU reached a few centimeters hours …
Estimation of socioeconomic indicators through satellite imagery - Analysis of urban areas overlapping
The NEXUS area covers approximately 30% of the Brazilian territory. In order to assist preservation and sustainable development policies in that region, this study proposes to rep…
A Compensated Root Water Uptake Model for Crops under Stress from Water Availability
The agricultural sector is a major consumer of water for irrigation purposes. Precise quantification of irrigation water requirements will help in achieving sustainable water mana…
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