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Showing 5901 to 5950 of 59105 works
Numerical modeling of gas hydrate recycling in complex media: Implications for gas migration through strongly anisotrop…
Burial driven recycling is an important process in the natural gas hydrate (GH) systems worldwide, characterized by complex multiphysics interactions like gas migration through an…
Determining Variability in Arctic Sea Ice Pressure Ridge Topography with ICESat-2
We investigate the characteristics and distribution of pressure ridges in Arctic sea ice using surface height profiles from the Advanced Topographic Laser Altimeter System (ATLAS)…
Estimation of Precipitating Electron Energy of Pulsating Aurora Using Ground-based Multiwavelength Optical Observations
Pulsating aurora (PsA) is characterized by quasi-periodic intensity modulations with a period of a few to a few tens of seconds. It is caused by precipitation of energetic electro…
Energy exchanges in Saturn’s polar regions from Cassini observations: Eddy-zonal flow interactions
Saturn’s polar regions (polewards of ∼ 63◦ planetocentric latitude) are strongly dynamically active with zonal jets, polar cyclones and the intriguing north polar hexagon wave. He…
Predicting slowdowns in decadal climate warming trends with explainable neural networks
The global mean surface temperature (GMST) record exhibits both interannual to multidecadal variability and a long-term warming trend due to external climate forcing. To explore t…
Lightning over the Boreal Zone: Skill Assessment for Various Land-Atmosphere Model Configurations and Lightning Indices
Current lightning predictions are uncertain because they either rely on empirical diagnostic relationships based on the present climate or use coarse-scale climate scenario simula…
Land-atmosphere feedbacks reduce evaporative demand in a warming climate: implications at local and global scales
The magnitude and extent of runoff reduction, drought intensification, and dryland expansion under climate change are unclear and contentious. A primary reason is disagreement bet…
Megathrust Heterogeneity, Crustal Accretion, and a Topographic Embayment in the Western Nepal Himalaya: Insights from t…
Between 81º30’ E and 83ºE the Himalayan range’s “perfect” arcuate shape is interrupted by an embayment. We hypothesize that thrust geometry and duplexing along the megathrust at m…
Evaluating and correcting short-term clock drift in data from temporary seismic deployments
Temporary seismic network deployments are quite common both in land and offshore. The acquired data have significantly helped improve our understanding of earthquake processes and…
Active VLF transmission experiments between the DSX and VPM spacecraft
This study presents results from magnetic field line conjunctions between the medium-Earth orbiting Demonstration and Science Experiments (DSX) satellite and the low-Earth orbitin…
Near Real-Time Estimation of High Spatiotemporal Resolution Rainfall from Cloud Top Properties of the MSG satellite and…
High spatiotemporal resolution rainfall is needed in predicting flash floods, local climate impact studies and agriculture management. Rainfall estimation techniques like satellit…
On the model of equatorial Magnetic-Archimedes-Coriolis waves propagating at Earth's core surface and the potential imp…
The purposes of this work are (1) clarifying the specific latitude range in which the currently physical model of the equatorial trapped Magnetic-Archimedes-Coriolis (namely eMAC)…
On the use of satellite information to detect coastal change: Demonstration case on the coast of Spain
Recent developments in satellite processing tools allow noncost, fast and automatic processing of a large amount of information from Earth observation, enhancing the capability of…
Updated Models of Current Sheet and Magnetic Field in the Jovian Magnetosphere for Pre-Galileo, Galileo and Juno Eras
In Jupiter’s magnetosphere, an electric current system within the ‘current sheet’ generates a magnetic field, which is comparable to or dominating the Jovian intrinsic field in th…
Vertical Wave Coupling in the Low-Latitude Ionosphere-Thermosphere as revealed by Concurrent ICON and COSMIC-2 Observat…
It is now well established that waves generated in the lower atmosphere can propagate upward and significantly impact the dynamics and mean state of the ionosphere-thermosphere (I…
Comparative geochemistry analysis between the ocean of Enceladus and the aqueous ocean on Earth during the Snowball Per…
Enceladus is one of the moons of Saturn that has caught the attention of scientists due to the potential for harboring life. It has a stratified internal structure, below its ice …
LINDEX, an End-to-End Landsat-8 Timeseries Index Processing Framework
As Earth's ecological landscape continues to change, it will become increasingly important to understand how it has changed, and how it may change in the future. Freely available …
Regional-scale wilting point estimation using satellite SIF, radiative-transfer inversion, and soil-vegetation-atmosphe…
Although water availability strongly controls gross primary production (GPP), the impact of soil moisture content (wilting point) is poorly quantified on regional and global scale…
Continuous Habitable Zones: Pairing a GCM and Bayesian Framework to Predict Habitable Zone Evolution
In the near-future, new space telescopes like JWST, LUVOIR, and HabEx will begin attempting to explore the properties of atmospheres of potentially habitable planets. This will re…
Time-domain source parameter estimation of Mw 3-7 earthquakes in Japan from a large database of moment-rate functions
Time-domain analyses of seismic waveforms have revealed diverse source complexity in large earthquakes (Mw>7). However, source characteristics of small earthquakes have been studi…
Estuarine salinity response to freshwater pulses
Freshwater pulses (during which river discharge is much higher than average) occur in many estuaries, and strongly impact estuarine functioning. To gain insight into the estuarine…
Seasonal Superrotation in Earth's Troposphere
Although Earth’s troposphere does not superrotate in the annual-mean, for most of the year – from October to May – the winds of the tropical upper troposphere are westerly. We inv…
Analyzing differential distribution Of Dissimilatory Arsenate Reducing Bacterial Community along depths of Aquifers in …
Groundwater contamination with geogenic arsenic poses a major health risk to millions of people throughout the world. Among various group of microbes, dissimilatory arsenate reduc…
Towards understanding of long-term nitrogen transport and retention dynamics across German catchments
Elevated nitrate concentrations in German water bodies are a widespread problem, potentially resulting from a long history of excess nitrogen (N) inputs. Here, we investigated lon…
Neutral Composition Information in ICON EUV Dayglow Observations
Since the earliest space-based observations of Earth’s atmosphere, ultraviolet (UV) airglow has proven a useful resource for remote sensing of the ionosphere and thermosphere. The…
Gravity-Wave-Driven Seasonal Variability of Temperature Differences between ECMWF IFS and Rayleigh Lidar Measurements i…
Long-term high-resolution temperature data of the Compact Rayleigh Autonomous Lidar (CORAL) is used to evaluate temperature and gravity wave (GW) activity in ECMWF Integrated Fore…
Increased winter runoff in Siberia modeled with tree rings as evidence for the recent high rate of permafrost degradati…
The instrumental data shows 7%-20% increase in annual discharge of the major Eurasian rivers like Ob, Yenisei and Lena between 1936 and 2018 (Wang et al. 2021). The trend has been…
Modeling Seasonality of River Discharge in Pan-Arctic Watersheds with Ring Width and Tracheid Anatomical Parameters
Polar regions are highly sensitive to climate change. In recent decades, the Arctic has warmed twice as fast as the world average, which has led to a significant loss of ice cover…
PO.DAAC Migrates to the Cloud and the River
The Physical Oceanography Distributed Active Archive Center (PO.DAAC) has traditionally hosted NASA’s Earth Observing System oceanography datasets, but is expanding its archive to…
Uncertainty in simulating twentieth century West African precipitation trends: the role of anthropogenic aerosol emissi…
Anthropogenic aerosol emissions from North America and Europe have strong effects on the decadal variability of the West African monsoon. Anthropogenic aerosol effective radiative…
Weaknesses in Dust Emission Modelling Hidden by Tuning to Dust in the Atmosphere
Vegetation is a major control on dust emission because it extracts momentum from the wind and shelters the soil surface, protecting dry and loose material from erosion by winds. M…
Genomic prediction of tocochromanols in exotic-derived maize
Tocochromanols (vitamin E) are an essential part of the human diet. Plant products including maize grain are the major dietary source of tocochromanols; therefore, breeding maize …
Ocean barotropic vorticity balances: theory and application to numerical models
The barotropic vorticity balance is fundamental to interpret the ocean gyre circulation. However, it remains an overlooked diagnostic in ocean circulation models. Here we propose …
Carbon monoxide (CO) cycling in the Fram Strait, Arctic Ocean
Carbon monoxide (CO) influences the radiative budget and oxidative capacity of the atmosphere over the Arctic Ocean, which is a source of atmospheric CO. Yet, oceanic CO cycling i…
Ocean heat uptake efficiency increase since 1970
The ocean stores the bulk of excess anthropogenic heat in the Earth system. The ocean heat uptake efficiency (OHUE) – the flux of heat into the ocean per degree of global warming …
The sensitivity of the El Niño- Indian monsoon teleconnection to Maritime Continent cold SST anomalies
The study investigates how sea surface temperature (SST) anomalies surrounding the Maritime Continent (MC) modulate the impact of developing El Niño events on Indian Summer Monsoo…
Simultaneous rupture propagation through fault bifurcation of the 2021 Mw7.4 Maduo earthquake
Fault geometric complexity plays a critical role in earthquake rupture dimension. Fault bifurcations are commonly observed in earthquake geology, yet, robust kinematic rupture pro…
Detection of Spatial and Temporal Stress changes during the 2016 Central Italy Seismic Sequence by monitoring the evolu…
We consider approximately 32,000 microearthquakes that occurred between 2005 and 2016 in central Italy to investigate the crustal strength before and after the three largest earth…
Long-term Variation of Dust Devils in East Asia during 1959-2021
Dust devils play an important role in dust transport by carrying it from surface into the atmosphere, especially in summer. However, information on how dust devil changed in the p…
Exploiting close zonal-sampling of HIRDLS profiles near turnaround latitude to investigate missing drag in chemistry-cl…
This study exploits the high-density zonal sampling at the turnaround latitude of the High Resolution Dynamics Limb Sounder (HIRDLS) in the Southern Hemisphere to investigate the …
Upscaling dissolution and remobilization of NAPL in surfactant-enhanced aquifer remediation from microscopic scale simu…
The dissolution and mobilization of non-aqueous phase liquids (NAPL) blobs in Surfactant-Enhanced Aquifer Remediation (SEAR) processes are upscaled using dynamic pore network mode…
Long-Term Density Trend in the Mesosphere and Lower Thermosphere from Occultations of the Crab Nebula with X-Ray Astron…
We present long-term density trends of the Earth’s upper atmosphere at altitudes between 71 and 116 km, based on atmospheric occultations of the Crab Nebula observed with X-ray as…
: Agent based Model for Development of Groundwater Framework vis-à-vis Surface Water Management for improved Returns of…
Modeling socio-ecological interactions are one of the essential requirements for water resource management in water-stressed areas. Mismanagement of water resource combined with e…
Puzzling Evidence: Glacial Deposits and the Cause of Ice Ages
The cyclical pattern of glaciations (about every ~100,000 years in the past million years in isotope records) suggests an external forcing, such as changes in the amount of sunlig…
Study on the Migrating Speed of Free Alternate Bars
In this study, flume experiments were conducted under conditions where alternate bars occur, develop, and migrate, to understand the existence and scale of the spatial distributio…
Stochastic downscaling of hourly precipitation series from climate change projections
Stochastic precipitation generators (SPGs) are often used to produce synthetic precipitation series for water resource management. Typically, an SPG assumes a stationary climate. …
Modelling the Genesis of Sand-Starved Dunes in Steady Currents.
The formation of fluvial dunes has been usually investigated assuming an infinite availability of the mobile sediment. Field observations and laboratory experiments nevertheless i…
Sample size requirements for riverbank macrolitter characterization
Anthropogenic litter is omnipresent in terrestrial and freshwater systems, and can have major economic and ecological impacts. Monitoring and modelling of anthropogenic litter com…
Influence of Managed Forest Structure on Hillslope-scale Post-thinning Recovery and Water Yield
Forest management can enhance forest resiliency against natural disturbances such as fire, drought, or disease. Mechanical thinning, followed by a prescribed burn, is a useful tec…
Immediate and long-lasting impacts of the Mt. Pinatubo eruption on ocean oxygen and carbon inventories
Large volcanic eruptions drive significant climate perturbations through major anomalies in radiative fluxes and the resulting widespread cooling of the surface and upper ocean. R…
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