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Showing 7101 to 7150 of 59105 works
Free alternate bars in rivers: key physical mechanisms and simple formation criterion
Free alternate bars are large-scale, downstream-migrating bedforms characterized by an alternating sequence of three-dimensional depositional fronts and scour holes that frequentl…
The Energy Spectra of Electron Microbursts Between 200 keV and 1 MeV
This study investigates the energy spectrum of electron microbursts observed by the Focused Investigations of Relativistic Electron Burst Intensity, Range, and Dynamics II (FIREBI…
Exploring the Implications of Modeling Choices on Prediction of Water Savings
Improvements in irrigation technology are expected to yield water savings. Recent research highlights the need for accompanying institutional conditions (e.g., restricting irrigat…
Importance of Secondary Ice Production to Ice Formation and Phase of High-Latitude Mixed-Phase Clouds during SOCRATES a…
Measured ice number concentrations are often much higher than the number concentrations of ice nucleating particles (INPs) in moderately cold mixed-phase clouds, suggesting the po…
Shaken, Not Stirred: Lack of Magma-chamber Overturn in a Caldera Setting Recorded by Whole-pumice, Mineral, and Melt In…
Understanding the physical and chemical dynamics of caldera magma chambers prior to VEI 7+ eruptions is important for eruption forecasting and societal preparedness. The 1.26 Ma, …
An unconditionally stable semi-analytical Lagrangian stream temperature model
Stream temperature is a critical ecosystem indicator and plays an important role in river ice formation and breakup. Typically, stream temperature is simulated either using statis…
Afulilo Water Storage Outlook Module (AWSOM)
In consultation with the Samoa Electric Power Corporation (EPC) and the Samoa Meteorology Division (SMD), the Afulilo Water Storage Outlook Module (AWSOM) that was developed as a …
A Robust Ensemble-based Data Assimilation Method using Shrinkage Estimator and Adaptive Inflation
This work proposes a robust and non-gaussian version of the shrinkage-based EnKF implementation, the EnKF-KA. The proposed method is based in the robust H filter and in its ensemb…
Uncertainty in fire emission factors and the impact on modeled atmospheric CO and O3
Fire emissions are an important component of global models, which help to understand the influence of sources, transport and chemistry on atmospheric composition. Global fire emis…
DIRT/mu: Automatic root hair measurement in maize (Zea mays ssp.) from microscopy images
Improving nutrient and water uptake in crops is one of the major challenges to sustain a fast-growing population that faces increasingly nutrient-limited soils. Root hairs, which …
General Server for Rapid Publishing of OGC-Compliant Earth Science Data Products
To make timely decisions for weather -and climate-related disasters and vulnerabilities, decision makers need current information that can be readily shared and communicated to st…
Constraints on absolute chamber volume from geodetic measurements: Trapdoor faulting in the Galapagos
Magma chamber volume is critical for volcano monitoring and forecasting. Standard geodetic methods cannot constrain the total volume, only the change in volume. Here, we show that…
Short-Term Sea Ice Extent Forecasting with Deep Learning
Current predictions for the changing Arctic focus on the evolution of sea ice from perennial to seasonal cover, with sea ice thinning as the Arctic warms. Significant efforts in d…
Particulate Oxalate-to-Sulfate Ratio as an Aqueous Processing Marker: Similarity Across Field Campaigns and Limitations
Leveraging aerosol data from multiple airborne and surface-based field campaigns encompassing diverse environmental conditions, we calculate statistics of the oxalate-sulfate mass…
Quantifying Impact of Anthropogenic Disturbances on Water Availability and Water Stress in Mongolian Urban and Mining H…
In Mongolia, overuse and degradation of groundwater is a serious issue, mainly in the urban and economic hub, Ulaanbaatar, and the Southern Gobi mining hub. In order to explicitly…
A new method for parameterization of wave dissipation by sea ice
We present a method for predicting wave dissipation by sea ice that is based on the dimensional analysis of data with a scaling defined by ice thickness. Applying the method to an…
The Divergence-free Net Coriolis Force creates Vertical Geostrophic Balance and Westward tilted Atmospheric Convection
There has been increasing realization that the non-traditional Coriolis force terms may have a significant effect on convective circulation and organization in the tropics. In thi…
Raspberry Pi Reflector (RPR): a Low-cost Water-level Monitoring System based on GNSS Interferometric Reflectometry
Although reflectometry had not been considered as a primary application of GPS and similar Global Navigation Satellite Systems (GNSS), fast-growing GNSS tracking networks has led …
Acoustic constraints on semi-brittle deformation of Carrara marble
To investigate the mechanisms involved during semi-brittle flow, we deformed Carrara marble over a confining pressure (P c ) range of 10-300 MPa and room temperature to ≈10% strai…
Development of a High-Latitude Convection Model by Application of Machine Learning to SuperDARN observations
A new model of high-latitude convection derived using machine learning (ML) is presented. The ML algorithm random forests regression was applied to a database of velocity observat…
Seamless simulation of multiphase flow, poromechanics, and seismic deformation in fractured subsurface formations
A seamless numerical model of coupled multiphase flow and inertial mechanics in fractured porous media is proposed. The model develops an automatic time step size control method t…
Negative Ce Anomaly in the Banded Iron Formation and Associated Clastic Rocks of the Sirsi Shelf Region, Southern India…
Banded Iron Formations (BIFs) are archives of Precambrian seawater composition. Presence or absence of negative Ce anomaly (Ce/Ce*) in BIFs has been widely used to understand pale…
Quadtree Decomposition-based Deep Learning Method for Multiscale Coastline Extraction with High-Resolution Remote Sensi…
The coastal zone is one of the most important features on the earth’s surface; therefore, it is imperative to extract the coastline, a representative coastal zone feature with hig…
Mechanisms Forcing the Diurnal Cycle of Dust in an Arid Closed Basin
The Salton basin is an arid, sub-sea level basin located in southeastern California. Mountain ranges border the basin directly to the west and east, to the north extends a narrow …
An early-time solution of pulse-decay method for permeability measurement of tight rocks
This contribution presents an early-time solution for permeability evaluation in pulse-decay tests. A nonlinear governing equation for gas transport in the sample is derived with …
Crossing the boundary: how key advancements to headland sediment bypassing improve definition of littoral cell zones
Headland sediment bypassing relates short-term physical forcing and long-term morphological response. The contributions from King et al., 2021 are a substantial step in understand…
Climate-Change Impacts on Phytoplankton Production around Atoll Reefs
Using the method of process-oriented hydrodynamic modelling, this study explores wind-driven upwelling features around atoll reefs. The three-dimensional physical model is coupled…
Extreme hydrometeorological events, a challenge for geodesy and seismology networks
The use of seismometer and gravimeter captures complementary data and brings a new understanding of the July 2021 catastrophic floods in Belgium and Germany. A sudden increase in …
NOAA Open Data Dissemination (formerly NOAA Big Data Project / Program)
The National Oceanic and Atmospheric Administration (NOAA) research to operations (R2O) experiment called the Big Data Project (BDP) was envisioned as a scalable approach for diss…
A Platform to Quantify Phenotypic Responses to Root-Root Interactions Among Kin and Non-kin Common Beans
Quantifying phenotypes of root-root interactions would allow a greater understanding of how plants react to belowground competition through plasticity of architectural traits. Pas…
Water and carbon cycles are tightly coupled in loblolly pine (Pinus taeda L.) plantations along the coastal plains of s…
Forest water use efficiency (WUE), the ratio of gross primary productivity (GPP), and evapotranspiration (ET) is important variable to understand the coupling between water and ca…
The impact of grain size on the hydromechanical behavior of mudstones
Porosity and compression index systematically decrease and permeability systematically increases with decreasing clay fraction over vertical effective stresses ranging from 0 – 21…
The role of diffuse electron precipitation in the formation of subauroral polarization streams
The role of diffuse electron precipitation in forming subauroral polarization streams (SAPS) is investigated with the Multiscale Atmosphere-Geospace Environment (MAGE) model. Diff…
Data driven trait quantification across a maize diversity panel using hyperspectral leaf reflectance
Scoring plant phenotypes across large populations in multiple environments is a necessary precondition to both using natural genetic diversity to build genotype to phenotype model…
Seismic anisotropy in the lower mantle transition zone induced by lattice preferred orientation of akimotoite
Seismic anisotropy has been widely observed near the subducting slabs in the lower mantle transition zone (MTZ) and is often interpreted by the lattice preferred orientation (LPO)…
Combining multiple electromagnetic methods, direct aquifer measurements, and modeling to inform ecological management o…
Assessment and management of limited fresh groundwater resources on remote small islands can be complicated by heterogenous geology, natural climate cycles, and a general lack of …
Watershed storage and sequential storage thresholds in a hillslope flow system driving discharge regimes
In many streams, discharge is often anticipated to be the residual between the inputs to watersheds (precipitation, groundwater inputs), outputs (evapotranspiration, groundwater o…
Gftt: an open-source tool for evaluating remotely sensed glacier velocity products
Glacier velocity reflects the dynamics of ice flow, and its change over time serves a key role in predicting the future sea-level rise. Glacier feature tracking (also known as off…
Developing Customized NRCS Unit Hydrographs for Ungauged Watersheds in Indiana, USA
The Natural Resources Conservation Service (NRCS, formerly the Soil Conservation Service, SCS) unit hydrograph (UH) is one of the most commonly used synthetic UH methods for hydro…
Improving geomagnetic proxies for geomagnetically induced currents (GICs)
The irregular variation of geomagnetic activity, caused by the solar wind interaction with the magnetosphere/ionosphere, occurs in a wide time interval (from seconds to annual and…
Do Archean cratons impact the initiation of subduction?
Cratons are stable parts of the Earth’s continental lithosphere that have remained largely undeformed for several billion years. These consist of crustal granite-greenstone terrai…
High-dimensional flow law parameter calibration and uncertainty quantification over Antarctic ice shelves: a variationa…
The flow and deformation of glacier ice in response to stress is often described using Glen’s Flow Law, a power-law relation that compactly represents ice rheology with a prefacto…
Sources of Auroral Conductance - Balance and Impacts
Despite significant developments in global modeling, the determination of ionospheric conductance in the auroral region remains a challenge in the space science community. With ad…
The AgBioData Research Coordination Network: Ensuring FAIR agricultural data through community-based standards.
With the increasing volume of data generated in agriculture, developing guidelines for appropriate data sharing and management is essential. Founded in 2015, the AgBioData Consort…
Challenges in scaling up greenhouse gas fluxes: experience from the UK Greenhouse Gas Emissions and Feedbacks Programme
The role of greenhouse gases (GHGs) in global climate change is now well recognised and there is a clear need to measure emissions and verify the efficacy of mitigation measures. …
Observing the Structure and Effects of Terrane Accretion at Depth through Patterns of Seismicity in Colombia's Cauca Cl…
The Cauca Cluster of seismicity in western Colombia is the most extensive and persistent collection of intermediate (>60 km) depth earthquakes that cannot be easily associated wit…
A Data-driven, Probabilistic, Multiple Return Period Method of Flood Depth Estimation
Flood depth grids from U.S. Federal Emergency Management Agency (FEMA) provide model-output estimates of the depth of water that can, on average, be expected to occur at various r…
Adjoint Slip Inversion under a Constrained Optimization Framework: Revisiting the 2006 Guerrero Slow Slip Event
Understanding the interaction between tectonic plates from geodetic data is relevant to the assessment of seismic hazard. To shed light on that prevalently slow aseismic interacti…
Are there detectable common aperiodic displacements at ITRF co-location sites?
Nowadays, the time evolution of ITRF station positions is described by piece-wise linear models extended with exponential and logarithmic functions to account for post-seismic dis…
A Collection of Airborne Measurements and Analyses of Trace Gases Emitted from Multiple Fires in California
Biomass burning is an important source of trace gases and particles, and can influence air quality on local, regional, and global scales. With the threat of wildfire events increa…
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