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Showing 40601 to 40650 of 59105 works

Assessment of riverbed evolution in the Vam Nao River under the influence of sand mining using a numerical model

Riverbed sand mining is a major anthropogenic driver of sediment imbalance and riverbank erosion in the Mekong Delta. This study investigates its morphological impacts using the h…

Efficient Full-Waveform Inversion via QR-Based Data Selection

Full-waveform inversion (FWI) is computationally intensive due to the large number of data points, forward simulations, and model parameters. However, realistic acquisition geomet…

Quantifying 3D Modeling Errors in Time-Domain Electromagnetics: Implications for Deterministic and Probabilistic Invers…

Subsurface resistivity in geophysics is commonly estimated indirectly from dependent measurements. This relationship can be approximated in a forward operator using physical model…

Non-Federal Climate Leadership Can Sustain U.S. Emissions Reductions Under Federal Policy Uncertainty

Recent federal climate policy rollbacks in the United States have slowed progress toward high-ambition climate targets under the Paris Agreement. In the absence of federal climate…

Why the Cap-Ferret sand spit is collapsing

The Cap-Ferret sand spit (SW France) exhibits a pattern of coastal instability that combines chronic shoreline retreat (8.7 m·yr⁻¹ at the tip, Robinet et al. 2025), sudden vertica…

Understanding fiber-optic sensitivity to a wavefield: A framework to separate site amplification from orientation effec…

When analyzing signals from Distributed Acoustic Sensing (DAS), the recorded amplitude across the array can be difficult to interpret, as it is influenced by many parameters. …

A Report on Assumptions and Uncertainties in Modeling Nuclear Winter

A nuclear winter would be, for lack of better words, really bad. As long as the risk of nuclear war exists, so too will the catastrophic risk of a nuclear winter. Much of the mode…

Research on Real-time Detection Method of Rice Diseases and Pests Based on Improved YOLOv10s Model

As one of the world's most important food crops, rice's yield and quality are largely threatened by pests and diseases, necessitating a highly accurate, fast-responding, and adapt…

Overshoot pathways of 1.5°C: reversible biophysical change, irreversible socioeconomic impacts

Exceedance of 1.5°C in the near term is now unavoidable. Among pathways consistent with the remaining carbon budget, an overshoot pathway, in which exceedance is followed by decli…

Species specific mangrove habitat suitability and scenario dependent blue carbon modeling under uncertainty in Soc Tran…

This study develops an integrated framework for species specific mangrove habitat suitability and scenario dependent blue carbon planning in Soc Trang Province, Vietnam. The spati…

Evidence of non-additional pig manure offset projects

Each carbon offset represents the claim that one ton of CO₂ emissions has been avoided or removed from the atmosphere. For offsets to deliver real climate benefits, the emission r…

Agricultural Fallowing Drives Extreme Anthropogenic Dust and Visibility Degradation During the October 2021 Dust Event …

Anthropogenic dust aerosols from agricultural land affect regional air quality, visibility, and radiation, yet they are often ignored in atmospheric models. Here, we investigate t…

Spatial Assessment of Soil Erosion Risk Using RUSLE and GIS in Upland Agricultural Barangays of Candelaria, Quezon, Phi…

This study integrated Geographic Information System (GIS) and the Revised Universal Soil Loss Equation (RUSLE) model, A= R • K • LS • C • P, to assess soil loss and propose soil c…

Evaluation of H2O-CO2 solubility models in silicate melts: Precision and accuracy of vapor saturation pressure and comp…

Solubility models for H2O and CO2 in silicate melt are crucial in igneous petrology and volcanology, in particular for calculating the pressure of vapor saturation of melts from t…

Microphysical Evolution of Precipitation During Convective Storm Life-Cycles and Implications for Radar QPE: Combined R…

Through dedicated observations with a Joss–Waldvogel disdrometer at Dumdum (22.65°N, 88.43°E) and the S-band Doppler Weather Radar (DWR) (22.57°N, 88.35°E) over Kolkata, this stud…

Exploratory MPAS Sensitivity Experiments on Rainforest Biogenic Salt Aerosols, Tropical Rainfall, and Poleward Moisture…

Rainforest ecosystems emit biologically influenced aerosol particles, including potassium-rich and other hygroscopic components that may affect warm-rain microphysics. While tropi…

Melt-dominated mid-crust in the 575–500 Ma Damara Orogen: Field constraints on an interconnected migmatite–granite syst…

Modern thermomechanical models emphasise the role of partial melting and granite magmatism on the structural and tectonic evolution of orogenic belts. Partially molten mid-crust c…

Statistics of curvature in the submesoscale surface ocean

Ocean submesoscale (1--10\,km) variability is hypothesised to contribute substantially to upper-ocean vertical exchange and heat fluxes, but the three-dimensional turbulent nature…

Continuous Water Surface Elevation Estimates Using Deep Learning with Legacy Altimetry and Surface Water and Ocean Topo…

We present the development of a high-temporal-resolution global dataset of daily river water surface elevation (WSE), spanning January 2008 through May 2025. By utilizing a deep l…

Airborne imaging spectrometer measurements of methane releases under turbulent conditions

Methane plume detection and quantification from airborne and spaceborne platforms offers a promising approach for monitoring localized greenhouse gas emissions. Its performance mu…

The biodiversity paradox: declining conservation discourse amid ecological crisis in global urban policies

Despite escalating biodiversity crises, conservation discourse in urban environmental policies has declined, revealing a governance paradox in which ecological urgency is inversel…

Upper Crustal Control on Nearshore Subduction Mechanics in Cascadia

Along-strike upper plate heterogeneity is widely observed at subduction margins, but its direct influence on slab geometry and interseismic deformation remains debated. Here, we i…

Between extraction and protection: Public support for natural resource regulation and environmental governance across A…

Natural resource extraction is central to development strategies across Africa, yet it generates persistent conflicts over environmental costs, benefit distribution, and governanc…

From sectoral silos to climate hegemony: analysis of global urban policies (1984-2025)

Contemporary urban environmental governance faces a paradox: while international frameworks advocate integration, climate discourse appears to subsume. This study analyzed 202 urb…

‘Egg that tastes like egg’: An ethnographic and economic inquiry into the assets and challenges of the organic farming …

The development of self-sufficient organic food systems has become an important focus in the Canary Islands, where reliance on imported foods and conventional agriculture are pred…

A proposal for a horizontal vector approach in 3D electrical resistivity tomography and its associated geometric factor

Electrical resistivity tomography (ERT) is commonly implemented with collinear electrode arrays that measure only electric-field components along the survey line, neglecting horiz…

Assessing Causality in PM2.5 and NO2 Changes One Year After New York City’s Congestion Pricing Policy

On January 5, 2025, New York City implemented the Central Business District Tolling Program (CBDTP), a congestion pricing policy targeting lower Manhattan. We evaluate its air qua…

Erosion-driven changes in soil cation exchange capacity quantified using barium isotopes

Human activities have perturbed the balance between rates of soil erosion and formation, driving declines in soil quality. However, quantifying these soil imbalances remains chall…

Late Holocene tsunami hydrodynamics, sediment provenance and chronology from Dury Voe, Shetland Islands (UK)

The Shetland Islands are one of the key sites in the Atlantic Ocean to study tsunami deposits, with three major events identified during the Holocene so far. Here, we aim to (i) r…

Spaceborne imaging spectrometry of methane plumes: Quantifying the benefit of aerosol lidar

Column averaged mixing ratios of trace gases, such as methane (XCH4), from spaceborne pushbroom spectrometers can be used to detect corresponding plumes and retrieve enhancements …

Mesozoic ocean plate stratigraphy reveals a Franciscan plate separating Farallon and North America

Ocean plate stratigraphy preserved in the Franciscan Complex recorded the Mesozoic plate tectonic evolution of the North American Cordillera and eastern Pacific basin. New and pub…

First-principles theory for Earth's tropical-midlatitude climate boundary

In Earth's climate, the boundary between the tropics and midlatitudes is a key determinant of temperature and precipitation characteristics, influencing human societies through da…

Settling and Rising Dynamics of River Litter

Global assessments of river litter transport, accumulation, and export to the oceans remain constrained because the particle-scale hydrodynamic variables governing litter movement…

A Meteorological Indicator for Particulate Matter Emissions: Adapting the Hot-Dry-Windy Index to Predict Feedlot Evenin…

Particulate matter emissions from cattle feedlot operations pose significant challenges to both livestock productivity and air quality in surrounding communities. The evening dust…

Xerokampos Evidence for a localized hot desert microclimate enclave

This study investigates the spatial precipitation distribution and microclimatic characteristics of the coastal enclave of Xerokampos, Lasithi in Greece. Utilizing a local meteoro…

Before the Threshold: Deceptive Stability, Buffer Slack, and Earth System Transitions

Earth history includes episodes in which persistent biological or geophysical byproduct loads are absorbed by finite environmental sinks and buffers, preserving apparent stability…

Quantifying hydropower flexibility during extreme temperature events

Extreme weather events can impose substantial stress on the electrical grid. Hydropower offers unique operational flexibility, enhancing grid resilience and reliability. Despite t…

Regional Economic Impacts and Emission Responses under Solar Radiation Modification

Solar Radiation Modification (SRM) has been proposed as a potential tool to limit increases in global or regional temperatures caused by anthropogenic greenhouse gas emissions. Wh…

Thermo-Hydraulic Optimization of Deep Geothermal Systems: Computational Methods and Classification

Deep geothermal energy forms an important part of a sustainable energy portfolio, providing baseload power and heat. A significant global expansion of DGSs is projected for the co…

PDCD-DAT – A global database of pyroclastic density current deposit field data

Pyroclastic density currents represent one of the deadliest hazards posed by active volcanoes. Analysis of their deposits provides valuable insights into their internal dynamics a…

Storm life cycle modulates extreme hydroclimate impact risk: a Great Lakes Region case study

Extratropical cyclones (ETCs) drive hydroclimate variability in the Great Lakes, yet their impacts vary widely between events. Here, we classify ETCs into two storm types using an…

EXPLORATION OF WATER RESOURCES MANAGEMENT DECISION SUPPORT POTENTIAL IN DATA SCARCE WATERSHEDS AND ASSOCIATED DATA POLI…

Insufficient data access presents major challenges to scientific assessment of water resources, development of management plans, and attainment of water security. Hydrologic model…

Soil-informed multivariate decision support to assess urban ecosystem service potential

Metropolitan expansion across Africa requires robust soil information to support ecosystem services and urban resilience. However, digital soil mapping often prioritises predictiv…

Beyond universal access: mapping regional inequalities and spatial coldspots in India’s WaSH sector toward SDG 6

National averages can conceal significant sectoral disparities and long-standing subnational injustices, despite the fact that India’s flagship programs had significantly improved…

Meteorite Classification Using Triple Oxygen Isotopes

For decades, measurements of all three isotopes of oxygen have been made in a handful of specialized laboratories around the world. These measurements either confirm meteorite cla…

Beyond national averages: a multi-method assessment of sub-national environmental sustainability and inequality in India

India’s rapid economic growth regularly jeopardizes its environmental foundation, although important sub-national differences were typically hidden by national-level evaluations. …

Scaling Spatiotemporal Transformers for Regional Food Security: A Tri-Stream Latent-Dynamic Approach to Pre-Harvest Yie…

Pre-harvest yield forecasting and price stability prediction are critical for food security planning in climate-vulnerable regions, yet existing approaches struggle to integrate h…

Multi-Feature Fusion for Grassland Information Extraction and Temporal Change Monitoring

Grasslands, as an important terrestrial ecosystem, play a vital role in maintaining ecological security and promoting regional sustainable development. However, in complex mountai…

Prevalence and associated factors of microbial water quality from drinking water in Ethiopia: A Systematic Review and M…

Introduction Drinking water contamination is a worldwide problem and causes a major public health threat, with most water contamination prevalent in developing countries, includi…

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