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Showing 12201 to 12250 of 22070 works
Simulation of plasmaspheric plume impact on dayside magnetic reconnection
During periods of strong magnetic activity, cold dense plasma from the plasmasphere typically forms a plume extending towards the dayside magnetopause, eventually reaching it. In …
A Journey from Roots to Bulk Soil: Organic Matter Characterization in the Biosphere 2 Tropical Rainforest
The Biosphere 2 (B2) is a large-scale research facility owned by the University of Arizona that comprises seven enclosed biomes. Among these is the Tropical Rainforest (TRF), wher…
Earthquake cycle simulations for long-term damage evolution and healing in low velocity fault zones
Most major strike slip fault systems are surrounded by narrow zones of damaged rocks that can have a crucial effect on earthquake dynamics. Owing to the limited timescale of seism…
Machine Learning Classification and Derived Snow Metrics from Very-high-resolution Multispectral Satellite Imagery in C…
Satellite remote sensing often requires a compromise between spatial resolution and spatial coverage for timely and accurate measurements of earth-system processes. But in recent …
A Lagrangian view of moisture transport related to the heavy rainfall of July 2020 in Japan: Importance of the moisteni…
The transport and accumulation of moisture played an essential role in the extremely heavy rainfall of July 2020 in Japan. To better understand this event in terms of moisture sou…
An Expandable and Adaptable Web Platform for Supporting Public Health Risk Response to Covid-19
The scale and extent of the effects of COVID-19 on our lives is unmatched by any other recent natural disaster. Effective management of the spread and consequences of this pandemi…
Characterizing lithological, weathering, and hydrothermal alteration influences on volcanic
The geomechanical characterization of volcanic material has important implications 16 for geothermal and mineral exploration, engineering design, geophysical signals of volcano 17…
Experimental Deformation of Unconsolidated Quartz Sands, Examining the Effects of Grain Sorting on Deformation Band For…
Deformation bands are the main structural element of fault damage zones within sandstone reservoirs. The prediction of band occurrence and their petrophysical impacts is based lar…
Empirical Inverse Transform Function for Ensemble Forecast Member Selection
With the improvement in numerical weather prediction models and high-performance computing technology, ensemble modeling and probabilistic forecasts have taken on some of the most…
Diagenesis of Vera Rubin ridge, Gale crater, Mars from Mastcam multispectral images
Images from the Mars Science Laboratory (MSL) mission of lacustrine sedimentary rocks of Vera Rubin ridge on “Mt. Sharp” in Gale crater, Mars, have shown stark color variations fr…
History and future of the Martian dynamo and implications of a hypothetical solid inner core
Although Mars does not possess a magnetic field today, parts of its crust are strongly magnetized, suggesting a limited early dynamo, likely powered by rapid heat flow from the co…
Thermal Pressure in the Laser Heated Diamond Anvil Cell: A Quantitative Study and Implications for the Density vs. Mine…
We present the first quantitative measurements of the magnitude and gradient of thermal pressure in a laser heated diamond anvil cell (LHDAC). The observed thermal pressure is str…
Boreal Wetland Mapping by UAV to Upscale Greenhouse Gas Emissions
Wetlands are the largest environmental sources of methane, and interannual changes in wetland methane fluxes explain most of the variability in the global flux. Despite their impo…
An Assessment of the Capabilities of GNSS Reflectometry for Dynamic Monitoring of Wetlands and Inundations
The dynamic distribution and change of terrestrial water, manifested in wetlands that support a wide range of vegetation types and ecosystems, and also in floodplains that are pro…
The Existential Crisis of Aerosol: Irrelevance to Relative Dispersion of the Droplet Size Distribution?
The amount of aerosol is a key parameter modulating the cloud microphysics and its subsequent long-term impact on climate through Twomey (cloud albedo) effect and Albrecht (lifeti…
Impact of COVID-19 pandemic lockdown on air pollution in 20 major cities around the world
In order to fight against the spread of COVID-19, the most hard-hit countries in the spring of 2020 implemented different lockdown strategies. To assess the impact of the COVID-19…
3D printing the world: developing geophysical teaching materials and outreach packages
3D-printing techniques allow us to visualise geophysical concepts that are difficult to grasp, making them perfect for incorporation into teaching and outreach packages. Abstract …
Pollution Swapping of N 2 O and CH 4 Emissions with Dissolved Nitrogen and Phosphorus Export in Drainage Water Managed …
Excess nutrient loading to downstream waters has been a persistent environmental concern, especially in agricultural settings. Drainage water management (DWM) is a best management…
A geospatial method to assess site suitability for static vehicle-based measurements of methane plumes
Vehicle-based methane-sensing systems are gaining popularity as tools for monitoring site-level methane emissions from oil and gas (O&G) sites. To measure emissions, vehicles equi…
Dynamic development of mineral layering and crystal alignments by pulsed magmatic flow in crystal mush of an upper-crus…
Magmatic structures are well-preserved in a 201.5 Ma diabase sill (PA, USA, equivalent to the Palisades sill) formed as part of the Central Atlantic Magmatic Province during rifti…
High Latitude Climatology of the Phase and Amplitude Fluctuations in GPS Signals
Electromagnetic waves propagating through the Earth’s ionosphere are subjected to changes in group and phase velocities, refraction, dispersion, and diffraction. For systems like …
Exploring the environmental drivers of global terrestrial CO2 fluxes inferred from OCO-2 and a geostatistical inverse m…
The carbon cycle displays strong sensitivity to short term variations in environmental conditions, and it is key to understand how these variations are linked with variations in C…
Estimates for Tethys' moment of inertia, present day heat flux, and interior structure from its long-wavelength topogra…
Which outer solar system satellites have sub-surface oceans is an important geophysical and astrobiological question. We developed a technique that translates a moon’s long-wavele…
General Solution for Tidal Behavior in Confined and Semiconfined Aquifers Considering Skin and Wellbore Storage Effects
Tidal analysis provides a cost-effective way of estimating aquifer properties. Tidal response models that link aquifer properties with tidal signal characteristics, such as phase …
Flat and Sharp Earth's Inner Core Boundary Beneath Mid-Eastern China Determined by PKiKP Spectrum Fitting
The properties of the inner core boundary (ICB) carry important information about the growth of the solid inner core and solidification of the liquid outer core. In this presentat…
Chemical speciation and solubility of arsenic, cadmium and lead in contaminated soil from abandoned mine tailing in Toy…
Heavy metals such as lead, zinc, copper, arsenic, and cadmium are usually found in surface soils affected by mining or smelting activities, agricultural practices, and industrial …
Stripping back the Modern to reveal Cretaceous climate underneath
In the context of climate change, a clear understanding of the processes and factors driving global warming is a major concern. During past geological times, Earth suffered severa…
Alluvial morphodynamics of low-slope bedrock reaches transporting non-uniform bed material
Research on bedrock rivers primarily focused on bedrock incision and, to the best of our knowledge, morphodynamic models have not yet considered the variability of sediment grain …
Site effects estimation and their effects on strong ground motion at Amatrice village (Central Italy)
We present a summary of seismological and geophysical investigations at Amatrice (Central Italy), a village seated on an alluvial terrace and severely stroke by the Mw 6.0 event o…
Observing and interpreting seafloor tilt at Axial Seamount
Measurements of ground tilt are a critical geodetic tool for monitoring active volcanoes because they provide multidimensional data that can resolve complex deformation signals. W…
Water-Nexus: Benchmarking water-energy-food nexus for a global urban agglomeration, Hyderabad, India, integrated with s…
The urban population has been on the rise, and as per the European Union Joint Research Commission, by the year 2015, 75% of the total population will be in the cities. Urban impo…
EUV irradiance monitoring and forecasting of strong and extreme solar events from polar cap observations of TEC
The F-region above 270 km is sunlit at all local times and seasons at latitudes higher than 75 degrees in the polar cap. This gives a direct indication of the effect of solar EUV …
Characterization of the East India Coastal Current using a Drifter, HF Radars and Altimetry during October -- November …
This study presents the characterization of the equatorward propagating East India Coastal Current (EICC) using a drifter during October – November 2015 (source: NOAA) and the coa…
Impact of the 2018 Ambae eruption on the global stratospheric aerosol layer and climate
During an extended volcanic unrest starting in 2017, two main moderate stratospheric eruptions occurred at the Ambae volcano (15°S and 167°E), Vanuatu, in April and July 2018. Obs…
Reducing Numerical Diffusion in Dynamical Coupling between Atmosphere and Ocean in Community Earth System Model (CESM),…
Climate models contain atmospheric and oceanic components that are coupled together to simulate the thermodynamic and dynamic processes during air-sea interactions. Community Eart…
An aridity index-based formulation of streamflow components
Direct-runoff and baseflow are the two primary components of total streamflow and their accurate estimation is indispensable for a variety of hydrologic applications. While direct…
Analysis of ambient VOCs using thermal desorption gas chromatography to identify smoke influence in urban areas
Smoke influence in urban areas is relatively easy to detect at high concentrations, but more challenging to detect at low concentrations. For this reason, we have evaluated an app…
Temperature and Hydrologic Cycle Constraints on Snowball Earth Environments
Pre- and syn-glacial low-latitude carbonate sediments of the Elbobreen Formation, NE Svalbard, preserve evidence for dramatic climate changes associated with Cryogenian glaciation…
Reynolds Number Dependence of Unbounded Stratified Shear Turbulence: A New Framework for Comparing Ocean and Laboratory…
Advances in understanding of stratified-shear turbulence have been made over the last several decades through ocean measurements, which typically quantify net turbulent quantities…
Experiencing Climate Change on the Farm: How Specialty Crop Producers are Adapting in Oregon
The production of specialty crops in the Pacific Northwest is an economically important industry and one that is likely to be heavily impacted by rising temperatures and decreasin…
Sediment Suspending in Turbulence Field of a Channel Stream
The dynamic balance of sediment elevating and settling in the turbulence field of a river channel is an outcome of two aspects: one is the cycling process of the bursting and weep…
Self-adjustment Laws of Fluvial Processes
The appearance of alluvial channel networks is similar to that of trees and their roots what have self-similarity. In the process of a fluvial evolution, alluvial channels are inn…
Geodetic Coupling Models as Constraints on Stochastic Earthquake Ruptures: An Example Application to PTHA in Cascadia
Current stochastic rupture modeling techniques do not consider the influence of first order fault zone characteristics. One such key characteristic is fault slip deficit or inter-…
Ionospheric and Solar Wind Contributions to the Storm-time Near-Earth Plasma Sheet
The storm-time ring current is formed by the inward convection of the near-earth plasma sheet, so understanding the changing source of the plasma sheet is key for understanding ri…
Communicating drought: Innovating approaches through engagement with decision makers
During recent droughts in North Carolina, decision makers have articulated needs for drought information, including current or anticipated impacts, geographic extent and timing, a…
What Controls the Remobilization and Deformation of Surficial Sediment by Seismic Shaking? Linking Lacustrine Slope Str…
Remobilization and deformation of surficial subaqueous slope sediments create turbidites and soft sediment deformation structures (SSDS), which are common features in many deposit…
Inferring Florida Current volume transport from satellite altimetry
The nearly four-decades-long quasi-continuous daily measurements of the Florida Current (FC) volume transport at 27ºN represents the longest climate record of a boundary current i…
Monitoring and Modeling Drainage Network Contraction and Dry Down in Mediterranean Headwater Catchments
Enhancing an understanding of expansion/contraction dynamics of active drainage networks is fundamental for both scientific purposes and environmental planning and management. Thi…
Uncertainties in Atmospheric River Life Cycles by Detection Algorithms: Climatology and Variability
Atmospheric rivers (ARs) are long and narrow filaments of vapor transport responsible for most poleward moisture transport outside of the tropics. Many AR detection algorithms hav…
Global Changes in Secondary Atmospheric Pollutants during the 2020 COVID-19 Pandemic
We use the global Community Earth System Model to investigate the response of secondary pollutants (ozone O 3 , secondary organic aerosols SOA) in different parts of the world in …
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