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Showing 7051 to 7100 of 59105 works
Intact Polar Lipids in Surface Sediments of The Atacama Trench Point to In Situ Dominant Sources of Labile Organic Matt…
Elevated organic matter (OM) concentrations are found in hadal surface sediments relative to the surrounding abyssal seabed. However, the origin of the biological material remains…
Rock slope temperature evolution and micrometer-scale deformation at a retreating glacier margin
In deglaciating environments, rock mass weakening and potential formation of rock slope instabilities is driven by long-term and seasonal changes in thermal- and hydraulic boundar…
Urban Green Space and Land Surface Temperature in Lucknow
Urban Green Spaces (UGSs) are proving to be most important part of urban area of a city. These green spaces not only provide psychological comfort to humans but also affect heat i…
Comparing the permeability of shale to deionized water, liquid CO2 and NaCl solution
The permeability of shale is a controlling factor in fluid migration, solute transport, and overpressure development in a sedimentary basin. However, shale permeabilities measured…
Assessment of Channel Flow Depth in a Data-Scarce Urban Catchment of Eastern India
Nowadays, many of the world cities and its peripheral areas are under constant threat of flooding due to high rainfall events. Increased rate of severe flood hazards world-wide ha…
Modelling the propagation of solar disturbances to Earth for the EU H2020 SafeSpace project
The EU H2020 SafeSpace project aims to develop a prototype pipeline that connects several tools in a modular fashion to address the physics of the Sun – Interplanetary space – Ear…
The Spatial Distribution of Charge Exchange Loss Contributions to Storm Time Ring Current Decay: Van Allen Probes Obser…
Charge exchange between hot ions and cold neutral atoms is an important effect in ring current loss processes on magnetized planets. In this letter, we investigate the spatial dis…
The Contribution of Clouds to Northern Hemisphere Surface Temperature Variability on Monthly to Decadal Timescales
Cloud radiative effects (CRE) have well documented impacts on mean climate, and have recently been found to play a key role in climate variability in the tropics. Here we probe th…
The polar cap (PC) index: PCS version based on Dome-C data
The standard Polar Cap (PC) indices, PCN (North) based on magnetic data from Qaanaaq in Greenland and PCS (South) based on data from Vostok in Antarctica, have been submitted from…
Augmenting traditional networks with data buys can support science, as well as operations
Science is fueled by data. Throughout history, scientists have operated sensors-from astronomical observatories to particle accelerators-that accumulate observations for analysis …
Surface Heat Capacity Controls the Existence of Summertime Radiative Convective Equilibrium in the Midlatitudes
Energy balance regimes (e.g., Radiative Convective Equilibrium or RCE) qualitatively characterize the low, mid, and high latitudes of Earth’s modern climate. Currently we do not h…
Solar Noise in 40-year long Total Solar Irradiance Composite Time Series
Since the late 70’s, successive satellite missions have been monitoring the sun’s activity, recording total solar irradiance observations. These measurements provide estimates of …
Sublimation origin of negative deuterium excess observed in snow and ice samples from McMurdo Dry Valleys and Allan Hil…
The oxygen and hydrogen isotopic composition in snow and ice have long been utilized to reconstruct past temperatures of polar regions, under the assumption that post-depositional…
Some discoveries about alloy reactions during the production of metallic Fe from (Mg,Fe)O at High-Pressure High-Tempera…
It is reported that metallic iron may exist under shallow lower mantle conditions (Frost et al., 2004). If metallic iron exists, it has an important chemical and physical impact o…
ASHLEY: A new empirical model for the high-latitude electron precipitation and electric field
In this study, a new high-latitude empirical model is introduced, named for Auroral energy Spectrum and High-Latitude Electric field variabilitY (ASHLEY). This model aims to impro…
Causality and Time-Lagged Dependencies at the Watershed Scale
Investigating watershed hydrology from a data-driven causal perspective is an attractive opportunity to characterize and understand relationships between water storages and fluxes…
The Spatial and Temporal Organization of Deep Convective Systems and Its Impacts on the Production of Anvil Clouds
A multi-threshold technique was used to objectively identify the space-time structure of meso-scale convective systems in the warm pool region using observations of high-resolutio…
Measuring Winds from Space to Reduce the Uncertainty in the Southern Ocean Carbon Fluxes: Science Requirements and Prop…
Strong winds in Southern Ocean storms drive air-sea carbon and heat fluxes. These fluxes are integral to the global climate system and the wind speeds that drive them are increasi…
Linking scales of motion in the atmosphere to variation in the surface below
The surface is the interface through which the bedrock interacts with the boundary-layer. Here, living organisms of various shapes, sizes, and function intermingle with the minera…
QuakeCast, an Earthquake Forecasting System Using Ionospheric Anomalies and Machine Learning
Distribution: A. Approved for public release – distribution is unlimited QuakeCast is a novel system for short-term earthquake prediction using global ionosphere Total Electron Co…
Deformation source revealed from leveling survey in Jigokudani valley, Tateyama volcano, Central Japan
To confirm whether the uplift in Jigokudani valley between 2007 and 2010 detected by Interferometric Synthetic Aperture Radar has continued to the present, we conducted leveling s…
Prioritising Sustainable Development Goals, characterising interactions, and identifying solutions for local sustainabi…
The United Nations 2030 Agenda brings a holistic and multi-sectoral view on sustainability via the Sustainable Development Goals (SDGs). However, a successful implementation of th…
Oceanic harbingers of Pacific Decadal Oscillation predictability in CESM2 detected by neural networks
Predicting Pacific Decadal Oscillation (PDO) transitions and understanding the associated mechanisms has proven a critical but challenging task in climate science. As a form of de…
Effects of Thermal Treatment on Acoustic Waves in Carrara Marble
Many physical processes in the field of rock physics are influenced by the presence of fractures and microcracks. Therefore, intact rock samples are often used for reproducible ex…
Emergent Constraints on Regional Cloud Feedbacks
Low-cloud based emergent constraints have the potential to substantially reduce uncertainty in Earth’s Equilibrium Climate Sensitivity, but recent work has shown that previously-d…
Evaluating changes in the degree of saturation in excavation disturbed zones using a stochastic differential equation
Deformation characteristics of sedimentary rocks significantly changed with the water content during drying. In tunnel construction, extremely small displacements such as geologic…
The Formation of Subtropical Phytoplankton Blooms Is Dictated by Water Column Stability During Winter and Spring in the…
Subtropical phytoplankton blooms were observed in winter and late spring (rather than in early spring, as is typical) via shipboard observations in an area south of the Kuroshio E…
An In-Situ Observational Study on the Turbulent Characteristics in the Near-surface Layer during the Landfalling Period…
The air-sea exchanges of momentum which are often parameterized by the variation of drag coefficient ( C D ) and wind speed ( u n ), is largely uncertain at typhoon-force extreme …
Using the World Wide Lightning Location Network (WWLLN) to study Very Low Frequency transmission in the Earth-Ionospher…
This is the second half of a two-part study. In the first part, we had used the World Wide Lightning Location Network’s recorded signal amplitudes to test a model of Very Low Freq…
Case Study of Camp Fire Employing Novel Metric for Time Series Analysis of Vegetation Recovery
Abstract—Wildfires are a major global issue, costing the United States 71.1 to 347.8 billion dollars annually (Graham, 2020). Rising global temperatures have increased the frequen…
Clear Air Turbulence observed across a tropopause fold 1 over the Drake Passage -A Case Study
7 4 Servicio Meteorológico Nacional, Buenos Aires, Argentina 8 Key Points: 9 • moderate to severe clear air turbulence over the Drake Passage is analyzed from 10 unique 10 Hz flig…
Morphodynamic stage threshold for confined mountain rivers can be identified using geomorphic covariance structure anal…
Does river topography have stage thresholds for maintaining fluvial landforms, and if so how can they be quantified? Geomorphic covariance structure analysis offers a novel, syste…
Lateral Heterogeneity in Compressional Mountain Belt Settings
Convergent orogens are typically linear with laterally continuous, orogen-parallel folds and thrusts. Over the years, geoscience research has revealed evidence for important ortho…
A Comprehensive Geochronology Study of the Rio Grande Rise: Evidence for Prolonged On and Off-ridge Volcanism
Expedition NBP1808 on the R/V Nathan B. Palmer completed 32 dredges between October and December, 2018 from locations across the Rio Grande Rise (RGR)—a largely unstudied oceanic …
Modeling Soil Organic Matter Under Different Brazilian Biomes Susceptible to Land Use Changes Using Daycent
The conservation of natural ecosystems is an essential component for sustainable land use (LU). One of the challenges facing society worldwide is climate change, where reduce emis…
The effect of seawater salinity on sea spray aerosol production
To improve our understanding of the impact of sea spray aerosols (SSA) on the Earth’s climate, it is critical to understand the physical mechanisms which determine the size-resolv…
Fast Segmentation of 4D Microtomography Volumes from Core-flooding Experiments in Porous Rock using Convolutional Neura…
Multiphase fluid flow in porous media has been extensively studied for its applications in carbon capture and storage, hydrocarbon recovery, aquifer contamination, soil hydrology …
Lithospheric deformation due to the 2015 M7.2 Sarez (Pamir) earthquake constrained by 5 years of space geodetic observa…
Key Points: • We present geodetic observations of coseismic and postseismic deformation due to the 2015 M w 7.2 Sarez (Pamir) earthquake. • Near-field postseismic deformation is d…
Simulating Solar Maximum Conditions Using the Alfven Wave Solar-Atmosphere Model (AWSoM)
To simulate solar Coronal Mass Ejections (CMEs), predict their time of arrival and geomagnetic impact, it is important to accurately model the background solar wind conditions in …
A Seismo-Acoustic Investigation of a Localized Crater Terrace Collapse at Stromboli Volcano
Interpreting seismo-acoustic signals is critical for assessing and characterizing changes in volcanic vents and has implications for interpreting volcanic unrest. This is especial…
Seismic Dispersion and Attenuation in Shale Oil Reservoir: Laboratory Experiments and Theoretical Analysis
Different lithofacies of shale oil reservoir invole different lithology（mineral composition）, structure(laminated and interbedded crack), pore type and permeability. One of our ob…
Slope Mass Rating (SMR) charts for onsite classification of rock slopes
The slope mass rating (SMR) method is universally used for the characterization and classification of rock slopes. SMR is calculated by reducing the value of basic rock mass ratin…
A new modeling approach for advective and dispersive pollutant transport in 3D discrete fracture network backbones of h…
In the present study, we demonstrate comprehensive three-dimensional breakthrough pollutant advection-dispersion curve predictions throughout the 3D block of a highly heterogeneou…
Representation Uncertainty in the Earth Sciences
The first Joint Workshop on Representation Uncertainty in the Earth Sciences was held in March 2021. This brought together the Earth observation, data assimilation and forecast ve…
The Influence of Climate Change on Vibriosis in the United States: Projected Health and Economic Impacts for the 21st C…
This paper represents the first national-level (United States) estimate of the economic impacts of vibriosis cases as exacerbated by climate change. Vibriosis is an illness contra…
Nutrient and Carbon Export from a Tidewater Glacier to the Coastal Ocean in the Canadian Arctic Archipelago
As glaciers melt, a range of glacier processes modify and export freshwater and sediments to the ocean. This glacial runoff may influence biological productivity in coastal ecosys…
Identifying slab-derived volatile contributions and mantle source heterogeneity beneath the Washington Cascades
Fluid-flux melting is commonly attributed as the primary driver of magmatism in arcs; however, decompression melting, mantle heterogeneity, and the amount and compositions of slab…
Applying Community Data Reporting Formats to Open-Source Water Quality Data
Data standardization can enable data reuse by streamlining the way data are collected, providing descriptive metadata, and enabling machine readability. Standardized open-source d…
Bedrock vadose zone storage dynamics under extreme drought: consequences for plant water availability, recharge, and ru…
Bedrock vadose zone water storage (i.e., rock moisture) dynamics are sparsely observed but potentially key to understanding drought responses. Exploiting a borehole network at a M…
Investigation of Pc5 pulsations effects and magnetospheric processes during intense geomagnetic storms
Giant pulsations belonging to the Pc5 frequency band were conceived by Rolf (1931). Such pulsations are influenced by magnetospheric processes produced by the solar wind. The purp…
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