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Showing 1151 to 1200 of 8313 works
On the Effect of Different Code-Based Ground Motion Selection Approaches for the Estimation of the Seismic Demand of Ma…
Building design codes recommend using nonlinear dynamic analysis for an appropriate assessment of the seismic response of several types of structures. To perform nonlinear dynamic…
Stochastic Ground Motion Simulation of the 9th of July 1998 Faial Earthquake (Azores, North Atlantic)
Earthquakes are among the most destructive natural disasters, resulting in a huge number of fatalities and economic losses all over the world. For regions with limited number of s…
Dynamic adaptive policy pathways fail under accelerating sea-level rise due to wrong-action selection: a unified decisi…
Coastal infrastructure managers face an imminent binary choice—commit to permanent hard defense or initiate managed retreat—under non-stationary sea-level rise (SLR) projections t…
Inferring Vertical Cloud Structure from Passive Top-of-Atmosphere Observations and Environmental Context with a Mixture…
Passive satellite observations provide global coverage of cloud-top properties but offer limited direct information about vertical cloud structure. Here, we evaluate the extent to…
Along-strike seismic structure of the Andreanof Aleutian Arc Segment and implications for the formation of continental …
Crust formed in volcanic arcs is accreted to continents over geologic time, serving as the source material for new continental crust in Earth’s present and recent past. Geochemica…
Distribution and recent trends of the Mixed Layer Depth around the Kerguelen Plateau
Situated in the Southern Indian Ocean, the Kerguelen plateau is known for intense phytoplankton blooms due to local iron enrichment. Any change in mixed layer depth (MLD) could im…
Excitation and decay of the auroral oval
The aurora often appears as an approximately oval shape surrounding the magnetic poles, and is a visible manifestation of the intricate coupling between the Earth’s upper atmosphe…
How Does El Niño Southern Oscillation Change Under Global Warming - A First Look at CMIP6
The latest generation of coupled models, the sixth Coupled Models Intercomparison Project (CMIP6), is used to study the changes in the El Niño Southern Oscillation (ENSO) in a war…
The new Max Planck Institute Grand Ensemble with CMIP6 forcing and high-frequency model output
Single-model initial-condition large ensembles are powerful tools to quantify the forced response, internal climate variability, and their evolution under global warming. Here, we…
Methane Plume Detection with Future Orbital Imaging Spectrometers
Despite methane’s important role as a greenhouse gas, the contribution of individual sources to rising methane concentrations in Earth’s atmosphere is poorly understood. This is i…
Improving Deep Learning Methods for Robust Methane Plume Detection using Alternative Input Representations
Methane (CH4) is a prominent greenhouse gas responsible for about 20% of all atmospheric radiative forcing. As we notice trends in increasing global temperatures, understanding an…
Deep Learning Saliency and Segmentation Methods for Robust Methane Plume Detection
Identification of global methane (CH 4 ) sources is critical for the quantification and mitigation of this potent greenhouse gas. In preparation for Carbon Mapper, a future spaceb…
Robust Multi-Campaign Imaging Spectrometer Methane Plume Detection using Deep Learning
Identification of global methane (CH4) sources is critical to the quantification and mitigation of this greenhouse gas. Future imaging spectrometer missions, such as Carbon Mapper…
The Impact of Climate Forcing Biases and the Nitrogen Cycle on Land Carbon Balance Projections
Earth System Models (ESMs) project that the terrestrial carbon sink will continue to grow as atmospheric CO$_2$ increases, but this projection is uncertain due to biases in the si…
The impact of climate change on ocean submesoscale activity
Global warming may modify submesoscale activity in the ocean through changes in the mixed layer depth and lateral buoyancy gradients. As a case study we consider a region in the N…
Quantifying Methane Fluxes from Super-Emitting Orphan Wells to Report Carbon Credits and Prioritize Remediation
Annually, ~ 3.6 million abandoned oil and gas wells in the U.S. emit a combined ~ 3.2 Tg methane (CH4), adversely affecting climate and regional air quality. However, these estima…
Joint estimation of sea ice and atmospheric state from microwave imagers in operational weather forecasting
Satellite-observed microwave radiances provide information on both surface and atmosphere. For operational weather forecasting, information on atmospheric temperature, humidity, c…
Assimilative Mapping of Geospace Observations (AMGeO): Data Science Tools for Collaborative Geospace Systems Science
The most dynamic electromagnetic energy and momentum exchange processes between the upper atmosphere and the magnetosphere take place in the polar ionosphere, as evidenced by the …
Domain Nesting in ICON and its Application to AMIP Experiments with Regional Refinement
The domain nesting of the icosahedral non-hydrostatic (ICON) model has been used operationally at Deutscher Wetterdienst for several years. Now it was also made available for the …
Combining top-down and bottom-up approaches to evaluate recent trends and seasonal patterns in U.K. N 2 O emissions
Atmospheric trace gas measurements can be used to independently assess national greenhouse gas inventories through inverse modelling. Here, atmospheric nitrous oxide (N 2 O) measu…
Comparison of Arctic and Antarctic stratospheric dynamics in chemistry versus no-chemistry climate models
Using nine chemistry-climate and eight associated no-chemistry models, we investigate the persistence and timing of cold episodes occurring in the Arctic and Antarctic stratospher…
Seasonal tracer subduction in the Subpolar North Atlantic driven by submesoscale fronts
Submesoscale flows (0.1 - 10 km) are often associated with large vertical velocities, which can have a significant impact on the transport of surface tracers, such as carbon. Howe…
Spatiotemporal variability of droughts in the Congo River Basin: The role of atmospheric moisture transport
The spatiotemporal evolution of droughts in the Congo River Basin (CRB) from 1981–2018 was investigated using the Standardised Precipitation Index (SPI) and Standardised Precipita…
Anomalous Multi-Variable Oceanographic Convergence on the 7th Arc in the Southeastern Indian Ocean Following the Disapp…
This paper reports the detection of a statistically anomalous, multi-variable oceanographic and atmospheric signal in the southeastern Indian Ocean (37°S–39°S, 89°E–94°E) using a …
A Method for Estimating the Reduction Factor Between the Maximum Sea Surface Wind Speed of a Typhoon and the Wind Speed…
To overcome the challenge of converting aircraft reconnaissance winds to near-surface typhoon winds, this paper presents a hybrid method combining physics and empirical relations.…
Bridging Event-Based and StorAge Selection Approaches to Backward Travel Time Distributions
Event-based backward travel time distributions (bTTDs) derived from tracer impulse responses provide event-scale insight into catchment transport, while StorAge Selection (SAS) fu…
The Sabne Framework V34.0: Deterministic Multi-Epoch Infrared Detection and Kinematic Tracking of Planet 9 (Candidate #…
We present a deterministic framework for the detection, long-baseline tracking, and dynamical coupling of Planet 9 (Designated Candidate #4) within the outer Solar System. Utilizi…
Nepal Terai Heatwave Projection For 2026: A Multi-Model Ensemble Assessment with Bias Correction and Extreme Value Theo…
Climate change is causing more heatwaves around the world, and their effects on highly populated agricultural areas can be devastating. This paper provides a forecast of heatwave …
A Rheological Pathway to Irreversible Planetary Dynamo Cessation: Tharsis-Scale Mantle Dewatering and the Termination o…
The global magnetic field of Mars ceased at approximately 4.1–3.7 Ga, an epoch that coincides with the principal constructional phase of the Tharsis volcanic province—the most vol…
The Saturnian Laboratory: Independent Observational Confirmation of Tidal Disruption, Equatorial Ring Bombardment, and …
The Orbital-Bioevolutionary Cycles Expanded (OBC-E) framework proposes that Earth episodically captured secondary satellites, triggering tidal disruption near the Roche limit, cir…
A Quarter Century of Wind Spacecraft Discoveries
The Wind spacecraft is a critical element in NASA’s Heliophysics System Observatory (HSO) – a fleet of spacecraft created to understand the dynamics of the sun-Earth system – owin…
Three-way coupling of compositional flow and poromechanics in porous media
Coupled reservoir flow and geomechanics receives a growing research interests for applications in unconventional oil & gas recovery and geological CO2sequestration. For CO2 seques…
Observing a Volatile Organic Compound from a Geostationary Infrared Sounder: HCOOH from FengYun-4B/GIIRS
Formic acid (HCOOH) is one of the most abundant volatile organic compounds (VOCs) in the Earth’s atmosphere and an important source of atmospheric acidity. Here we present the fir…
Comprehensive assessment of flood socioeconomic impacts through text-mining
In July 2021, Germany experienced its costliest riverine floods in history, with over 189 fatalities and a staggering \euro33 billion in damages. Following this event, news outlet…
Sub-diurnal methane variations on Mars driven by barometric pumping and planetary boundary layer evolution
In recent years, the Sample Analysis at Mars (SAM) instrument on board the Mars Science Laboratory (MSL) Curiosity rover has detected methane variations in the atmosphere at Gale …
Identifying Coherence Across End-of-Century Montane Snow Projections in the Western United States
Montane snowpack is a vital source of water supply in the Western United States. However, the future of snow in these regions in a changing climate is uncertain. Here, we use a la…
ITRF2020: The International Laser Ranging Service (ILRS) Contribution
The ILRS completed the reanalysis of the entire period of useful data from geodetic spherical targets spanning 1983 to end of 2020. The combined products were submitted to ITRS fo…
Long-lasting diapir growth history in the Basque- Cantabrian basin (Northern Spain): a review
The Basque-Cantabrian basin is located in northern Spain in the westernmost part of the Pyrenees. It is a Mesozoic rift, inverted during the Tertiary. In this basin, a subsiding d…
Are There Mantle Earthquakes Beneath the East African Rift? Probably yes!!!
Whether deep earthquakes beneath the southern East African Rift, down to 44 ±4 km, occur above or below the Moho has remained controversial. We explore a new technique, relying on…
A Rheological Feasibility Pathway for the Early Termination of the Martian Dynamo: Tharsis-Scale Mantle Dewatering on a…
The Martian global dynamo ceased early in planetary history, with available constraints placing the shutdown between approximately 4.1 and 3.7 Ga—an interval overlapping the main …
Robust decision-making via uncertainty quantification in Deep Learning Models for Marine Microfossil Classification
Taxonomic identification of marine microfossils such as foraminifera and coccolithophores is essential for reconstructing past oceanographic and climatic conditions. However, this…
Spatiotemporal Variability Drives the Inconsistency of Multiscale Severity of Intense Rainstorms
Short-duration intense rainstorms drive flash floods in small urban watersheds, yet assessing their severity across multiple spatiotemporal scales remains challenging because indi…
Machine Learning Eliminates Reanalysis Warm Bias and Reveals Weaker Winter Surface Cooling over Arctic Sea Ice
The surface energy budget governs Arctic sea-ice growth/melt, yet observations are sparse, and reanalysis datasets suffer from systematic biases. Here, we train a neural network w…
GeoVLM: Geography-Aware Multimodal Visual Reasoning for Earth Science Applications
The integration of large vision-language models with earth science data presents unique challenges including the scarcity of labeled geoscientific data, the need for effective lon…
A Statistical Study of Warm Plasma Cloak Particles Using Van Allen Probe Data
The Warm Plasma Cloak (WPC) consists of ions in the inner magnetosphere with energies between 10eV and 1keV and showing a bidirectional pitch angle distribution of particles. Thes…
Conformal Discovery Bounds for Candidate Dark-Matter Excesses in Gamma-Ray Sky Maps
Gamma-ray excesses near the inner Milky Way are scientifically important because a smooth component with the right angular profile and energy scale can resemble emission from anni…
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