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Showing 14851 to 14900 of 22070 works
Influence of Deep-Ocean Warming on Coastal Sea-Level Trends in the Gulf of Mexico
Rates of sea-level rise are increasing across the global ocean. Since $\sim 2008$, sea-level acceleration is particularly pronounced along the US Gulf of Mexico coastline. Here we…
Experimentally derived luminous efficiencies for aluminum and iron at meteoric speeds
Calculating meteoroid masses from photometric observations relies on prior knowledge of the luminous efficiency, a parameter that is not well characterized; reported values vary b…
A water isotopic modelling library for environmental studies
Isotopic composition modelling is a key aspect in many environmental studies. This work presents an open source Python library that estimates isotopic compositions through machine…
Characterization of Anthropogenic Light Pollution via Stratospheric Remote Sensing
1. Abstract The alteration of the natural nighttime environment due to artificial light at night (ALAN) can disrupt ecological systems and affect human health. Inefficiencies in l…
Development of an Epidemic-type Aftershock-sequence Model Explicitly Incorporating the Seismicity-triggering Effects of…
Slow slip events (SSEs) at subduction zone plate boundaries sometimes trigger earthquake swarms and megathrust earthquakes. The causal relationship between SSEs and seismicity has…
Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations
Rapidly shrinking Arctic sea ice has had significant impacts on the Arctic Ocean and many outer Arctic regions. It is therefore urgently needed to reliably estimate Arctic sea-ice…
Differences in methanogenic pathways and methanogenic communities in paddy soils under three typical cropping modes
Microbial methane (CH4) production varies among different cropping modes,which has important implications for how to reduce CH4 emissions from paddy fields.However,little is known…
Discontinuity in fluvial plastic transport increased by floating vegetation
Understanding plastic mobility in rivers is crucial in estimating plastic emissions into the oceans. Most studies have so far considered fluvial plastic transport as a uniform pro…
Relative contributions of anomalous heat fluxes and effective heat capacity to sea surface temperature variability
Sea surface temperatures (SSTs) vary not only due to heat exchange across the air-sea interface but also due to changes in effective heat capacity as primarily determined by mixed…
Heavy Water Isotope Precipitation in Inland East Antarctica Accompanied by Strong Southern Westerly Winds during the La…
Stable water isotope signals in inland Antarctic ice cores have provided wealth of information about past climates. This study investigated atmospheric circulation processes that …
Assessing food security disruptions in the aftermath of extreme events
Climate change can potentially drive variations in the frequency and magnitude of hydrological extremes, and in turn the impact these events have on agriculture. Agricultural dama…
Millimeter Wave Spatial Statistical Channel Model for High-altitude Military UAV Battlefield Situation Awareness
A high-altitude military UAV air-to-ground scenario model is established for the battlefield scenario without base station, the MIMO antenna array technology is used to improve th…
Irrigation quantification through backscatter data assimilation with a buddy check approach
Irrigation is an important component of the terrestrial water cycle, but it is often poorly accounted for in models. Recent studies have attempted to integrate satellite data and …
Is the Madden-Julian Oscillation a Moisture Mode?
The governing thermodynamics of the Madden-Julian Oscillation (MJO) are examined using sounding and reanalysis data. On the basis of four objective criteria, results suggest that …
FloodSafeHome: Evaluating Benefits and Savings of Freeboard for Improved Decision-Making in Flood Risk Mitigation
Freeboardelevation of a structure above the base flood elevation (BFE)is a critical component in mitigating or avoiding flood losses. However, the unrevealed benefits and savings …
Uncertain Benefits of Using Remotely Sensed Evapotranspiration for Streamflow Estimation-Insights from a Randomized, La…
Remotely sensed evapotranspiration (ET RS ) is increasingly used for streamflow estimation. Earlier reports are conflicting as to whether ET RS is useful in improving streamflow e…
A Low-Cost Radiometer for Validation of Landsat's Higher-LevelThermal Products
This research initiative utilizes established methods to ensure ongoing calibration of Landsat’s thermal instruments and to advance the development and validation of the associate…
The theory of cratering statistics: Significant improvements to existing methods for ages, slopes, and plots
Crater counts provide a rich source of information about the history of our solar system, including age estimates of many geologic terrains. In this work we present substantial im…
Comment on “Stratospheric Aerosol Composition Observed by the Atmospheric Chemistry Experiment Following the 2019 Raiko…
This is a comment on the Boone et al. (2022) article. The authors analyzed spaceborne observations of stratospheric aerosol in 2019-2020 . They concluded, the dominating aerosol t…
Benchmarking of machine learning ocean subgrid parameterizations in an idealized model
Recently, a growing number of studies have used machine learning (ML) models to parameterize computationally intensive subgrid-scale processes in ocean models. Such studies typica…
Physics-based dynamic rupture models, fault interaction and ground motion simulations for the segmented Húsavík-Flatey …
We present 3-D spontaneous dynamic rupture earthquake scenarios for the Húsavík–Flatey Fault Zone (HFFZ) in Northern Iceland. We construct three fault system models consisting of …
Muon Flux Variation in Real-time and its Correlation with Space Weather Activity
We present a comparison of the measured cosmic ray (CR) muon fluxes from two identical detectors at different geolocations and their sensitivity to space weather events in real ti…
Closing the reactive carbon flux budget: Observations from dual mass spectrometers over a coniferous forest
We use observations from dual high-resolution mass spectrometers to characterize ecosystem-atmosphere fluxes of reactive carbon across an extensive range of volatile organic compo…
A New Four-Component L*-dependent Model for Radial Diffusion based on Solar Wind and Magnetospheric Drivers of ULF Waves
Waves which couple to energetic electrons are particularly important in space weather, as they drive rapid changes in the topology and intensity of Earth’s outer radiation belt du…
Overturning Pathways Control AMOC Weakening in CMIP6 Models
Future projections indicate the AMOC will weaken and shoal in response to global warming, but models disagree widely over the amount of weakening. We analyse projected AMOC weaken…
Triple-Dip La Niña in 2020-22: Impact of Annual Cycle in Tropical Pacific SST
The triple-dip La Niña in 2020-22 is characterized by persisting easterly and southeasterly wind anomalies over the tropical central and southeastern Pacific. Our results show tha…
Balancing EC-Earth3: Improving the performance of EC-Earth CMIP6 configurations by minimizing the coupling cost
Earth System Models (ESMs) are complex systems used in weather and climate studies generally built from different independent components responsible for simulating a specific real…
A Juno-era View of Electric Currents in Jupiter's Magnetodisk
Recent observations from Juno provided a detailed view of Jupiter’s magnetodisk, including its magnetic fields, waves, plasmas and energetic particles. Here, we contribute to Juno…
Irregularities observed at the edge of a mid-latitude ionospheric trough following a geomagnetic storm
This manuscript presents the analysis of data from multiple ground- and space-based sensors in the North American region before, during, and after the 12 Oct. 2021 geomagnetic sto…
Numerical treatment of state-dependent permeability in multiphysics problems
Constitutive laws relating fluid potentials and fluxes in a nonlinear manner are common in several porous media applications, including biological and reactive flows, poromechanic…
Earthquake Early Warning using 3 seconds of records on a single station
We introduce the Ensemble Earthquake Early Warning System (E3WS), a set of Machine Learning algorithms designed to detect, locate and estimate the magnitude of an earthquake using…
Can One Predict Coronal Mass Ejection Arrival Times with Thirty-Minute Accuracy?
J. Schmidt and Cairns (2019) have recently claimed that they can predict Coronal Mass Ejection (CME) arrival times with an accuracy of 0.9+-1.9 hours for four separate events. The…
Towards Low-Latency Estimation of Atmospheric CO2 Growth Rates using Satellite Observations: Evaluating Sampling Errors…
The atmospheric CO2 growth rate is a fundamental measure of climate forcing. NOAA's growth rate estimates, derived from in situ observations at the marine boundary layer (MBL), se…
Dynamic evolution of dayside magnetopause reconnection locations and their dependence on IMF cone angle: 3-D global hyb…
We study the dynamic evolution of dayside magnetopause reconnection locations and their dependence on the interplanetary magnetic field (IMF) cone angle via 3-D global-scale hybri…
Biological uptake, water mass mixing and scavenging prevent transport of manganese-rich waters from the Antarctic shelf
Manganese (Mn) is an essential element for photosynthetic life, yet concentrations in Southern Ocean open waters are very low, resulting from biological uptake along with limited …
Continent-Ocean Transition or Boundary? Crowd-sourced seismic interpretations of the East-India Passive Margin
On the edge of our continents, oceanic crust meets continental crust. At passive margins, those where there is no active tectonics, subduction or transform faulting, these crustal…
Symmetry Constraints Enhance Long-term Stability and Accuracy in Unsupervised Learning of Geophysical Fluid Flows
Fluid dynamical systems are well described by discretized partial differential equations, but computational costs limit accuracy, duration and/or resolution in numerical integrati…
The Effect of Antecedent Topography on Complex Crater Formation
Impact craters that form on every planetary body provide a record of planetary surface evolution. On heavily-cratered surfaces, new craters that form often overlap older craters, …
Positive outcomes from U.S. lead regulations, continued challenges, and lessons learned for regulating emerging contami…
Albeit slow and not without its challenges, lead (Pb) emissions and sources in the United States (U.S.) have decreased immensely over the past several decades. Despite the prevale…
Unfrozen Water Content Estimation: A Comparison between Ensemble and Non-ensemble Machine Learning Models
Unfrozen water content (UWC) is a key parameter affecting a variety of soil physical-mechanical properties and processes in frozen soil systems. However, traditional estimation mo…
Trapped Lee-Wave Resonance Determines Antarctic Megadune Wavelength
Snow megadunes cover 5×105 km2 of the East Antarctic plateau, biasing surface mass balance estimates and overprinting ice-core signals—yet their 2–5 km wavelength has lacked a qua…
Fracture Network is the Aquifer and Rock Matrix is a Geochemical Archive
Fractured bedrock aquifers are a primary source of water supply for over a billion people worldwide, yet a foundational conceptual ambiguity exists in how these systems are charac…
Resolved Gravity Waves in High-Resolution WACCM-X: Impact on Thermospheric Mean State and Tides
Atmospheric tides are a substantial source of variability in the thermosphere and play a key role in coupling the lower and upper atmosphere. While gravity waves (GWs) are known t…
From seismometer to sediment: linking modelled ground motions to sedimentary shaking imprints in south-central Alaskan …
Subaqueous paleoseismology offers valuable insight into past earthquakes, yet quantitative links between ground motion and sedimentary shaking imprints remain limited. This study …
A Reproducible Data-to-Model Workflow for Transforming Geothermal and Magnetotelluric Observations into Georeferenced 3…
We present an open-source workflow for transforming paleogeothermal and magnetotelluric observations into georeferenced, simulation-ready three-dimensional models of the continent…
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