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Showing 8401 to 8450 of 22070 works

A coupled geochemical-geodynamical approach for predicting mantle melting in space and time

Geodynamical simulations underpin our understanding of upper-mantle processes, but their predictions require validation against observational data. Widely used geophysical dataset…

Can We Use 1D Models to Predict 3D Physics?

Single-column models (SCMs) are often used to evaluate model physics and aid parameterization development. However, few studies have systematically compared the results obtained u…

Study and analysis of Irrigation furrow measurement, Flow rate Soil moisture distribution and Gross depth at Melka Hida…

Abstract Techniques of furrow preparation on a field are mostly traditional; farmers provide furrow shape and direction based on their experience without the concept of scientific…

Structural and thermal evolution of an infant subduction shear zone: Insights from sub-ophiolite metamorphic rocks reco…

The thermal structure of the subduction interface changes drastically within the first few million years following subduction initiation (i.e. subduction infancy ), resulting in c…

Empirical Approach to Estimate Net Ecosystem Exchange Using High Frequency Mesonet Observations across Potential Switch…

Monitoring net ecosystem carbon dioxide (CO2) exchange (NEE) using eddy covariance (EC) flux towers is quite common, but the measurements are valid at the scale of tower footprint…

Krishna River Downstream Temporal Channel Variations

All rivers undergo changes in channel geometry downstream systematically. A river adjusts its channel geometry (width,depth,cross-sectional area)within the limitations imposed by …

Low-strength lithosphere beneath the Ulleung Basin in the East Sea (Sea of Japan), inferred from buckling structure

To understand back-arc basin dynamics of the western Pacific, constraining the crustal type and rheology of the Ulleung Basin in the East Sea (Sea of Japan) is essential. We perfo…

Random Error in Space-Time Bin Averages of Sea Surface Temperature Observations from Ships

Sea surface temperature (SST) observations made at ships are distributed irregularly in space and time and are affected by systematic biases and random errors. Such observations a…

A novel spatial downscaling approach for climate change assessment in regions with sparse ground data networks

This study proposes a novel approach that expands the existing QDM (quantile delta mapping) to address spatial bias, using Kriging within a Bayesian framework to assess the impact…

Evidence of the Matuyama-Brunhes transition in cave sediment in Central Europe

In this study, we offer significant improvement over previous results that identified the Matuyama-Brunhes magnetic reversal in cave sediments from the Czech Republic in Central E…

Seasonal cycle of idealized polar clouds: large eddy simulations driven by a GCM

The uncertainty in polar cloud feedbacks calls for process understanding of the cloud response to climate warming. As an initial step toward improved process understanding, we inv…

Complex 3D Migration and Delayed Triggering of Hydraulic Fracturing-Induced Seismicity

Earthquakes resulting from hydraulic fracturing (HF) can have delayed triggering relative to injection commencement over a varied range of time scales, with many cases exhibiting …

Solar wind - magnetosphere coupling during radial IMF conditions: simultaneous multi-point observations

In situ spacecraft missions are powerful assets to study processes that occur in space plasmas. One of their main limitations, however, is extrapolating such local measurements to…

Electronic Life-detection Instrument for Enceladus/Europa (ELIE)

Habitable regions of Europa may include a subsurface ocean and transient liquid environments within its icy shell. Ocean-surface communication may occur on 1–2 million-year (My) t…

Effects of hydrogen on the phase relations in Fe--FeS at pressures of Mars-sized bodies

Hydrogen (H) and sulfur (S) are light element candidates to enter the core of planetary bodies. Although Fe-S and Fe-H systems have been studied individually, the Fe-S-H ternary s…

Cluster Curlometry Limitations in the Ring Current Region

During its ongoing mission, the Cluster II constellation has provided the first small-scale multipoint measurements of the space environment, and dramatically advanced scientific …

Synchronization of Heinrich and Dansgaard-Oeschger Events through Ice-Ocean Interactions

The cause of Heinrich events and their relationship with Dansgaard-Oeschger (DO) events are not fully understood. Previous modeling studies have argued that Heinrich events result…

Impact of coastal marsh eco-geomorphologic change on the prediction of saltwater intrusion under future sea level rise

Coastal saltwater intrusion (SWI) is one key factor affecting the hydrology, nutrient transport, and biogeochemistry of coastal marsh landscapes. Future climate change, especially…

Ecohydrology of Salt-Affected Ecosystems: From the Plant-hydraulics- to the Catchment-scale

Soil salinization represents one of the most widespread forms of land degradation worldwide, posing an enormous threat to food security, sustainable development, and ecosystem res…

Logjams and channel morphology influence sediment storage, transformation of organic matter, and carbon storage within …

The flow of organic matter (OM) along rivers and its retention within floodplains are fundamental to the function of aquatic and riparian ecosystems and are significant components…

Resolving Long-Standing E-Region Data/Model Discrepancies

Accurate photoionization rates are vital for the study and understanding of planetary ionospheres. Previous model calculations of terrestrial photoionization rates lack sufficient…

Modulation of Solar Irradiance on Geomagnetic Activity: An Idealized Experiment with WACCM5.

Interannual changes in spectral irradiance at UV wavelengths is one of sources of solar-driven decadal variability in the atmosphere and in particular in the stratosphere as most …

3D Simulations of the Early Martian Hydrological Cycle Mediated by a H2-CO2 Greenhouse

For decades the scientific community has been trying to reconcile abundant evidence for fluvial activity on Noachian and early Hesperian Mars with the faint young Sun and reasonab…

Impacts of fully coupling land surface and flood models on large wetland’s water dynamics: the case of the Inner Niger …

It is known that representing wetland dynamics in land surface modeling improves models’ capacity to reproduce fluxes and land surface boundary conditions for atmospheric modeling…

Autonomous detection of whistler-mode chorus elements in the Van Allen radiation belts using morphological signal proce…

Autonomous large-scale detection of whistler-ode chorus elements in the Van Allen radiation belts has been an open computational challenge. This is primarily due to: (i) Variabili…

UK ammonia emissions estimated with satellite observations and GEOS-Chem

Agricultural emissions of ammonia (NH3) impact air quality, human health, and the vitality of aquatic and terrestrial ecosystems. In the UK, there are few direct policies regulati…

Improved Backscattering Measurements with the CFOSAT Rotating Fan-beam Scatterometer

The China-France Oceanography Satellite (CFOSAT) was successfully launched on October 29, 2018, which carried two innovative payloads, i.e., the surface waves investigation and mo…

Snowfall Type Classification for Improving Passive Microwave Snowfall Estimates

Quantitative Precipitation Estimates from space-based observations represent an important dataset for understanding the Earth’s atmospheric, hydrological and energy cycles. Precip…

Effects of Ionospheric Inhomogeneities on Remote Sensing of the Earth by Space-borne P-band SAR

Numerical modeling of the effect of rotation of the polarization vector in the ionospheric plasma on the radio waves of the high frequency range is performed. The relevance of the…

Impacts of ionospheric plasma on magnetic reconnection and Earth's magnetosphere dynamics

Ionospheric ions (mainly H+, He+ and O+) escape from the ionosphere and populate the Earth’s magnetosphere. Their thermal energies are usually low when they first escape the ionos…

Dynamique hydroclimatique de l’Oubangui amont à Mobaye, République Centrafricaine : étude comparée du rôle de la savane…

The rainfall reduction in the 1970s, less marked in Central Africa than in West Africa, still had a major impact on the hydrological regimes of the region’s large rivers. The stud…

Simulating Miocene warmth: insights from an opportunistic Multi-Model ensemble (MioMIP1)

The Miocene epoch, spanning 23.03-5.33Ma, was a dynamic climate of sustained, polar amplified warmth. Miocene atmospheric CO2 concentrations are typically reconstructed between 30…

Phosphorus Chemistry in the Earth's Upper Atmosphere

The ablation of phosphorus from interplanetary dust particles entering the Earth’s atmosphere is a potentially significant source of this key bio-element. In this study, the atmos…

Multifractal approach to urban green spaces distribution in Est-Paris agglomeration (France) and potential benefits.

The growth of the world’s population living in urban areas has led to change from natural to highly dense and impermeable landscapes. Moreover, the intensity and frequency increas…

Recently Amplified Interannual Variability of Great Lakes ice cover and its Connection to Sea Ice over the Bering and C…

The interannual variability of the annual maximum ice cover (AMIC) of the Great Lakes is generally dominated by a dipole pattern over mid-latitude North America and Western Alaska…

Explaining the Variability in High-Frequency Nitrate Export Patterns Using Long-Term Hydrological Event Classification

Runoff events play an important role for nitrate export from catchments, but the variability of nutrient export patterns between events and catchments is high and the dominant dri…

Tsunami Squares Implementation Changes to Improve Wave Resolution and Accuracy

Tsunami Squares is a computationally lightweight tsunami and inundation simulator which utilizes a unique cellular automata technique. We make modifications to the underlying algo…

Characterizing Drought Behavior using Unsupervised Machine Learning for Improved Understanding of Future Drought in the…

Drought is a pressing issue for the Colorado River Basin (CRB) due to the social and economic value of water resources in the region and the significant uncertainty of future drou…

Generating samples of extreme winters to support climate adaptation

Recent extreme weather in the UK highlights the need to understand the potential for more extreme events in the present-day, and how such events may change with global warming. We…

More Than Just DOIs, How to Pragmatically Make 50 Years of Diverse Data Centre Holdings and Services Citable, The Persp…

The British Oceanographic Data Centre (BODC) celebrated its 50th anniversary in 2019. It holds data collected from 1773 to the present day. Holdings are multidisciplinary, heterog…

A New Copula-Bayesian Post-Processing Method for NMME Precipitation Forecasts: Extreme and Non-Extreme Values

In this study, an effective post-processing approach has been examined to improve skill of NMME precipitation forecasts. This method is based on the existence of a correlation bet…

The Compensatory CO2 Fertilization and Stomatal Closure Effects on Runoff Projection in the Western United States

Water availability in the dry Western United States (US) under a warming climate and increasing water use demand has become a serious concern. Previous studies have projected futu…

Semi-automatic Ice Rafted Debris quantification with Computed Tomography

Sedimentary Ice Rafted Debris (IRD) provides critical information about the climate sensitivity and dynamics of ice sheets. In recent decades, high-resolution investigations have …

Juno Waves high frequency antenna properties

The Waves instrument aboard Juno is a sophisticated radio astronomy observatory investigating Jupiter's auroral radio emissions and plasma wave interactions. Waves records electri…

Magnetic Signature of Basalts in the Chang’e-5 Sample Region: Implications for the Lunar Dynamo

In December 2020, Chang’e-5 returned samples from mare basalt unit Em4/P58 in northern Oceanus Procellarum. With an absolute model age of 1.21-1.53 Ga (Hiesinger et al. 2003; Qian…

Geomorphological and geological controls on storage-discharge functions of Alpine landscapes: evidence from streamflow …

Predicting the impact of changing climate and anthropogenic influences on stream discharge dynamics and baseflow conditions requires insight into the main factors that regulate st…

Oligocene/early Miocene major E/W-shortening and NW-oriented sinistral slip with associated wrench-fault assemblage in …

Field survey, satellite image interpretation, geological map interpretation, literature review, GPlates reconstruction and LA-ICP-MS U-Pb dating of synkinematic calcites demonstra…

Stratospheric Gravity Waves as a Proxy for Hurricane Intensification: a Case Study of Mesoscale Simulations for Hurrica…

We conduct a mesoscale simulation with a 4-km resolution for Hurricane Joaquin in 2015 using the Weather Research and Forecast (WRF) model. The model data are used to study strato…

Projecting future nitrogen inputs: are we making the right assumptions?

Global use of reactive nitrogen (N) has increased over the past century to meet growing food and biofuel demand, while contributing to substantial environmental impacts. To projec…

The evolution of ancient fluvial systems in Memnonia Sucli, Mars: impact crater damming, aggradation, and a large, inne…

There is conflicting evidence for an ancient ocean which occupied the northern hemispheric basin on Mars. Along different regions of the dichotomy boundary, sediment fans have bee…

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