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Showing 2251 to 2300 of 59105 works
Linkages between mineral element composition of soils and sediments with hyporheic zone dissolved organic matter chemis…
The hyporheic zone is a hotspot for biogeochemical cycling where interactions with mineral metals preserve the release and biodegradation of organic matter (OM). A small fraction …
The Impact of Oceanic Feedbacks on Stratosphere-Troposphere Coupling in an Idealised Model
Stratospheric temperature perturbations (STPs) caused by e.g. variations in stratospheric ozone, are an important driver of changes in tropospheric dynamics, particularly pertinen…
Bayesian Inversion, Uncertainty Analysis and Interrogation using Boosting Variational Inference
Geoscientists use observed data to estimate properties of the Earth’s interior. This often requires non-linear inverse problems to be solved and uncertainties to be estimated. Bay…
The influence of lithospheric thickness variations beneath Australia on seismic anisotropy and mantle flow
Rapid plate motion, alongside pronounced variations in age and thickness of the Australian continental lithosphere, make it an excellent location to assess the relationship betwee…
A laboratory model for iron snow in planetary cores
Solidification of the cores of small planets and moons is thought to occur in the â\euro˜iron snowâ\euro™ regime, in which iron crystals form near the core-mantle boundary and fal…
Climate Change and Cleaner Emissions Decrease Methylmercury Export from a Headwater Peatland Catchment
Peatlands are sources of the bioaccumulating neurotoxin methylmercury (MeHg) and linked to adverse health outcomes, yet the impact of climate change and reductions in atmospheric …
Propagation Effects of Slanted Narrow Bipolar Events: A Rebounding-Wave Model Study
Narrow bipolar events (NBEs) are impulsive and powerful intracloud discharges. Recent observations indicate that some NBEs exhibit a slanted orientation rather than strictly verti…
Variable Stoichiometry Effects on Glacial/Interglacial Ocean Model Biogeochemical Cycles and Carbon Storage
Realistic model representation of ocean phytoplankton is important for simulating nutrient cycles and the biological carbon pump, which affects atmospheric carbon dioxide ( p CO 2…
Simulation of Large Earthquake Synchronization and Implications On North Anatolian Fault Zone
The North Anatolian Fault (NAF) has a history of large quasi-periodic large earthquake clusters. This study investigates the phenomenon with a model consisting of three strong vel…
The mechanics of static non-planar faults in linear elasticity
Fault geometry is a key factor in controling the mechanics of faulting. However, there is currently limited theoretical knowledge regarding the effect of non-planar fault geometry…
The Role of Rapid Changes in Weather on Phytoplankton Spring Bloom Dynamics Captured by an Autonomous Uncrewed Surface …
The spring phytoplankton bloom plays a major role in pelagic ecosystems; however, its dynamics is overlooked due to insufficient, highly-resolved observational data. Here we inves…
Validation of E-region Model Electron Density Profiles with AURIC utilizing High-Resolution Cross Sections
E-region models have traditionally underestimated the ionospheric electron density. We believe that this deficiency can be remedied by using high-resolution photoabsorption and ph…
Timing and provenance of volcanic fluxes around the Permian-Triassic Boundary Mass Extinction in South China: U-Pb zirc…
Anomalous mercury (Hg) contents recorded near the Permian-Triassic boundary (PTB) are often linked to Siberian Traps Large Igneous Province (STLIP) volcanism and the Permian-Tri…
Spacecraft outgassing observed by the BepiColombo ion spectrometers
During the first flyby of the BepiColombo composite spacecraft at Mercury in October 2021 ion spectrometers observed two intense spectral lines with energies between 10 and 70eV. …
Atmospheric aerosol optical properties and radiative forcing over two metros in South Africa
Aerosol Robotic Network (AERONET) measurement data is used in the validation of two prominent satellite aerosol property retrieval, Multiangle Imaging Spectroradiometer (MISR) and…
Characteristics of foreshock subsolar compressive structures
The turbulent foreshock region upstream of the quasi-parallel bow shock is dominated by waves and reflected particles that interact with each other and create a large number of di…
D-CDA:A Denoise And Change Detection Approach For Flood disaster location From SAR Images
Flood disasters are among the most devastating natural disasters worldwide. The occurrence of such disasters is often accompanied by strong precipitation and other weather factors…
Fermat's Last Theorem: A Historical and Mathematical Overview
This paper offers a comprehensive examination of Fermat's Last Theorem , a statement in number theory that captivated mathematicians for over 350 years until its proof by Andrew W…
Future hotspots of compound dry and hot summers emerge in European agricultural areas
Compound dry and hot extremes (CDHE, such as recent summers 2015, 2018 and 2022 in Europe) have wide ranging impacts: Heat exacerbates moisture shortages during dry periods wherea…
Two decades of permafrost region CO2, CH4, and N2O budgets suggest a small net greenhouse gas source to the atmosphere
The long-term net sink of carbon (C), nitrogen (N) and greenhouse gases (GHGs) in the northern permafrost region is projected to weaken or shift under climate change. But large un…
Evidence of stress relaxation caused by time-dependent deformation in the damage zone of the Chelungpu fault system
High fracture density in fault damage zones not only reduces the elastic stiffness of rocks but may also promote time-dependent bulk deformation through the sliding of fracture su…
Observations of hydrodynamic processes on atolls in the South China Sea with deep reef flats (> 10m) with implicatio…
The Nansha Islands comprise the largest atoll archipelago in the South China Sea, accommodating 15% of global atolls. In contrast to reef flats found elsewhere in the Indo-Pacific…
Breaking the Ice: Exploring the Changing Dynamics of Winter Breakup Events in the Beaufort Sea
The Beaufort Sea has experienced a significant decline in sea ice, with thinner first-year ice replacing thicker multi-year ice. This transition makes the ice cover weaker and mor…
The state-of-the-art modeling of cosmogenic Cr isotopes produced in lunar rocks compared with existing calculations and…
The distribution of Cr isotopes provides useful information to trace the source and origin of extraterrestrial samples, but it is usually influenced by high-energy cosmic rays. Si…
Differentiating Between Simultaneous Loss Drivers in Earth’s Outer Radiation Belt: Multi Dimensional Phase Space Densit…
We analyzed the contribution of electromagnetic ion cyclotron (EMIC) wave driven electron loss to a flux dropout event in September 2017. The evolution of electron phase space den…
Detection and attribution of climate change using a neural network
A new detection and attribution method is presented and applied to the global mean surface air temperature (GSAT) from 1900 to 2014. The method aims at attributing the climate cha…
Analytical Model and Experimental Testing of the Limits of Hydraulic Fracture Caging
Enhanced Geothermal Systems (EGS) are a promising concept for unlocking the great potential of Hot Dry Rock (HDR) resources for clean and sustainable energy production. It can be …
An Improved Non-local Planetary Boundary Layer Parameterization Scheme in Weather Forecasting and Research Model Based …
Planetary boundary layer (PBL) modeling is a primary contributor to uncertainties in a numerical weather prediction model due to difficulties in modeling the turbulent transport o…
Generating interpretable rainfall-runoff models automatically from data
A sudden surge of data has created new challenges in water management, spanning quality control, assimilation, and analysis. Few approaches are available to integrate growing volu…
Evaluation of Wildfire Plume Injection Heights Estimated from Operational Weather Radar Observations using Airborne Lid…
The vertical distribution of wildfire smoke aerosols is important in determining its environmental impacts but existing observations of smoke heights generally do not possess the …
Depth-partitioning of particulate organic carbon composition in the rising and falling stages of the Amazon River
The Amazon River mobilizes organic carbon across one of the world’s largest terrestrial carbon reservoirs. Quantifying the sources of particulate organic carbon (POC) to this flux…
Atmospheric Rivers in Southeast Alaska: Meteorological Conditions Associated with Extreme Precipitation
Extreme precipitation events associated with atmospheric rivers (ARs) trigger floods, landslides, and avalanches that threaten lives and livelihoods in Southeast Alaska. Six rural…
Predicting Food-Security Crises in the Horn of Africa Using Machine Learning
The Horn of Africa region has frequently been affected by severe droughts and food crises over the last several decades, and this will increase under projected global-warming and …
Reconciling Surface Deflections From Simulations of Global Mantle Convection
The modern state of the mantle and its evolution over geological timescales is of widespread importance for the Earth sciences. For instance, it is generally agreed that mantle fl…
Technical Note: Revisiting the Procedure for Quantification of the Young Water Fraction Based on Seasonal Tracer Cycles
The transit time (TT) of streamflow encapsulates information about how catchments store and release water and solutes of different ages. The young water fraction (Fyw), the fracti…
Simultaneous Precipitation of Sub-Relativistic Electron Microburst and Pulsating Aurora Electrons
We have identified for the first time an energy-time dispersion of precipitating electron flux in a pulsating aurora patch, ranging from 6.7 keV to 580 keV, through simultaneous i…
Bayesian Network-Informed Conditional Random Forests for Probabilistic Multisite Downscaling of Precipitation Occurrence
This work presents Bayesian network-informed conditional random forests (BNICRF), a novel multiresponse classification technique able to downscale the joint probability distributi…
The Irminger Gyre as a key driver of the subpolar North Atlantic overturning on monthly timescales
The lower limb of the Atlantic meridional overturning circulation (AMOC) is the equatorward flow of dense waters that have been transformed due to the cooling and freshening of th…
Simulation of temperature extremes over West Africa and the Eastern Sahel with MPAS
A large ensemble of 51 simulations with the Model for Prediction Across Scales (MPAS) has been applied to assess its ability to reproduce extreme temperatures and heat waves in th…
Shifts of the Recirculation Pathways in central Fram Strait drive Atlantic Intermediate Water Variability on Northeast …
Increased oceanic heat transport plays a key role in the accelerated mass loss of Greenland’s marine-terminating glaciers. The melt rate of major glaciers in Northeast Greenland (…
Assessing the Effectiveness of Koftu's Small-Scale Irrigation Schemes in Enhancing Water Resource Utilization in Ethiop…
This study aims to assess the effectiveness of the small-scale irrigation schemes in Koftu, Ethiopia, in enhancing water resource utilization. The research employed various method…
Effects of Anthropogenic Aerosols on the East Asian Winter Monsoon
Circulation patterns linked to the East Asian winter monsoon (EAWM) affect precipitation, surface temperature, and air quality extremes over East Asia. These circulation patterns …
Ocean biogeochemical fingerprints of fast-sinking tunicate and fish detritus
Pelagic tunicates (salps, pyrosomes) and fishes generate jelly-falls and/or fecal pellets that sink roughly 10 times faster than bulk oceanic detritus, but their impacts on biogeo…
3D crustal structure of the Jammu and Kashmir Himalaya: signatures of mid-crustal ramp and Lesser Himalayan duplex
We use teleseismic data from the Jammu and Kashmir Seismological NETwork, to perform P-wave receiver function spatial and common-conversion-point (CCP) stacks, and joint inversion…
Observations of ocean surface wave attenuation in sea ice using seafloor cables
The attenuation of ocean surface waves during seasonal ice cover is an important control on the evolution of many Arctic coastlines. The spatial and temporal variations in this pr…
Digital Twin of PR-DNS: Accelerating Dynamical Fields with Neural Operators in Particle-Resolved Direct Numerical Simul…
Particle-resolved direct numerical simulations (PR-DNS) play an increasing role in investigating aerosol-cloud-turbulence interactions at the most fundamental level of processes. …
Factors contributing to deep slab dip angles in reconstructions of past mantle flow
Individual sinking slabs present markedly different dip angles between 410 km and 660 km depths, from vertical slabs penetrating the lower mantle to slabs stagnating above the low…
Premonitory earthquakes clustering process in an equivalent dimensions space before the Mw8.2 Tehuantepec, Mexico, 2017…
A new approach to monitoring stochastic features of earthquake series was applied to track the preparatory process of the 2017 Tehuantepec, Mexico, Mw8.4 earthquake. The seismicit…
Surface Air-Pressure Measurements from Space Using Differential Absorption Radar on the right wing of the 60 GHz oxygen…
Surface Air-pressure is one of the most important parameters used in Numerical Weather Prediction (NWP) models. Although it has been measured using weather stations on the ground …
Optimal Design of a Glider Array for the Observation of Tropical Cyclones
Underwater gliders have advantages for typhoon observation. In recent years, the typhoon resistance and cluster networking capabilities of such platforms have improved greatly; th…
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