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Showing 6401 to 6450 of 59105 works
Observations of Southeast Asian Biomass Burning and Urban Trace Gas Enhancement Ratios: Insights into Regional Air Qual…
Southeast Asian biomass burning is a major pollutant source that contributes to poor air quality throughout the region. Thus, understanding these emissions is critical for predict…
The impact of lithology on fjord morphology
Understanding the factors controlling fjord morphology is required to assess the impact of glaciations on topography and the dynamics of ice sheets. We investigate the role of lit…
Calibration and Characterisation of Microwave Sounders With the Moon
A major problem with calculating the uncertainties of measurements with weather satellites is the fact that a full characterisation and calibration of their instruments can only b…
High-resolution ambient noise imaging of geothermal reservoir using 3C dense seismic nodal array and ultra-short observ…
Tomographic imaging based on long-term ambient seismic noise measurements, mainly the phase information from surface waves, has been shown to be a powerful tool for geothermal res…
Local hydraulic resistance in heterogeneous porous media
We examine the validity of the commonly used Hagen-Poiseuille model of local resistance of porous media using direct numerical simulations. We provide theoretical arguments that h…
Assimilation of both column- and layer-integrated dust opacity observations in the Martian atmosphere
A new dust data assimilation scheme has been developed for the UK version of the Laboratoire de Météorologie Dynamique (LMD) Martian General Circulation Model. The Analysis Correc…
Evidence of a complex structure within the 2013 August 19 CME. ICME radial and longitudinal evolution in the heliospher…
Context: Late on 2013 August 19, a coronal mass ejection (CME) erupted from an active region located near the far-side central meridian from Earth’s perspective. The event and its…
Paris Agreement requires substantial, broad, and sustained engagements beyond COVID-19 recovery packages
It has been claimed that COVID-19 public stimulus packages could be sufficient to meet the short-term energy investment needs to leverage a shift toward a pathway consistent with …
Improving short to medium range GEFS precipitation forecasts in India using post-processing techniques
This study aims to enhance the accuracy and reliability of the Global Ensemble Forecast System’s (GEFS) precipitation forecasts over the Indian subcontinent using two post-process…
Modelling temporal changes in the gravity field in the Nankai Trough subduction zone, Japan
Monitoring slow earthquake activity in subduction zones can give important insight into the stress build-up and subsequent rupture extent of megathrust earthquakes. Extensive slow…
Navigating the modelling puzzle: Using forward and inverse models to make clear decisions when exploring and interpreti…
Numerical thermal history modelling has become a core approach used for interpretation of low-temperature thermochronometry data. Modelling programs can find rock time-temperature…
High-Resolution Global Inland Surface Water Monitoring using PlanetScope Data and Supervised Learning with Bootstrapped…
High-resolution mapping and monitoring of global inland surface water bodies are critical to address challenges in sustainable water management practices. Planet currently operate…
Classification of Synoptic Patterns with Mesoscale Mechanisms for Downslope Windstorms in Korea using the Self-Organizi…
Downslope windstorms are responsible for wildfires, wind gusts, and turbulence in the lee side of the Taebaek Mountains, called Yeongdong region (YD) in Korea. We classified the s…
The High-pO2 Method to Prevent U-Loss During Single-Aliquot Hematite (U-Th)/He Measurement: Development, Implementation…
Single-aliquot (U-Th)/He dating of iron-oxides requires less mass and has a higher spatial resolution than the two-aliquot approach, and is, therefore, a more reliable tool for qu…
Urban water storage capacity inferred from observed evapotranspiration recession
Water storage plays an important role in mitigating heat and flooding in urban areas. Assessment of the water storage capacity of cities remains challenging due to the inherent he…
Zircon U-Pb Age Constraints on the Exhumation of the Lesser Himalayas from the Laxmi Basin, Arabian Sea
The Indus Fan, located in the Arabian Sea, contains the bulk of the sediment eroded from the Western Himalaya and Karakoram. Scientific drilling in the Laxmi Basin by the Internat…
Examining the interaction between free-living bacteria and iron in the global ocean
Marine free-living bacteria play a key role in the cycling of essential biogeochemical elements, including iron (Fe), during their uptake, transformation and release of organic ma…
Toward A Globally-Applicable Uncertainty Quantification Framework for Satellite Multisensor Precipitation Products base…
The usefulness of satellite multisensor precipitation products such as NASA’s 30-minute, 0.1° Integrated Multi-satellitE Retrievals for the Global Precipitation Mission (IMERG) is…
The added value in CMIP6 models for simulating west African rainfall and its related extreme indices.
West African precipitation is characterized by a strong variability from intra-seasonal to climatic scales. In this region, it typically rains from March to October with differenc…
Analysis of local dust plumes using ground- and satellite-based remote sensing supported by surface measurements
The Kluane Lake region in the Canadian Yukon territory is subject to regular drainage-flow dust plumes emanating from the Slims River basin. We have recently employed ground- and …
Diffusion-based smoothers for spatial filtering of gridded geophysical data
We describe a new way to apply a spatial filter to gridded data from models or observations, focusing on low-pass filters. The new method is analogous to smoothing via diffusion, …
The climates of Earth’s next supercontinent: effects of tectonics, rotation rate, and insolation
We explore two possible Earth climate scenarios, 200 and 250 million years into the future, using projections of the evolution of plate tectonics, solar luminosity, and rotation r…
Explainable AI uncovers how neural networks learn to regionalize in simulations of turbulent heat fluxes at FluxNet sit…
Machine learning (ML) based models have demonstrated very strong predictive capabilities for hydrologic modeling, but are often criticized for being black-boxes. In this paper we …
Analysis of Atmospheric Factors affecting wildfires
Wildfires have a great impact on the global ecosystem and human society, so the prediction and prevention of wildfires is necessary. This article uses the MOD14A2 data, the NCEP/N…
Tsunami Source of the 2021 MW 8.1 Raoul Island Earthquake from DART and Tide-gauge data inversion
The tsunami source of the M W 8.1 2021 Raoul Island earthquake in the Kermadec subduction zone was estimated by inverting the tsunami signals recorded by DART bottom pressure sens…
Simulated response of South Atlantic Subtropical Mode Water to air-sea processes
Subtropical mode water is formed in winter-time deep mixed layer due to variations in air-sea processes. In the South Atlantic, three formation cores are identified between 30oS a…
“Shaking in 5 seconds!” A Voluntary Smartphone-based Earthquake Early Warning System
Public earthquake early warning systems have the potential to reduce individual risk by warning people of an incoming tremor, but their development is hampered by costly infrastru…
Emergent constraints on the sensitivity of global land surface runoff to temperature based on CMIP6 projections
Climate change affects the water cycle. Despite the improved accuracy of simulations of historical temperature, precipitation and runoff in the latest Coupled Model Intercompariso…
A Bayesian Hierarchical Network Model for Daily Streamflow Ensemble Forecasting
A novel Bayesian Hierarchical Network Model (BHNM) for ensemble forecasts of daily streamflow that uses the spatial dependence induced by the river network topology and hydrometeo…
Extremely low equatorial ionospheric density measured by CHAMP due to strong meridional neutral wind
Ionospheric plasma density data from the planar langmuir probe onboard the CHAllenging Minisatellite Payload (CHAMP) are used to investigate the latitudinal profile of the ionosph…
Controls on circum-Antarctic grounding-line sinuosity
Mapping modern and paleo-grounding lines around the Antarctic Ice Sheet elucidates processes occurring at the grounded ice-ocean interface. Positional differences across individua…
Dissecting a Zombie: Shallow Volcanic Structure Revealed by Multiple Geophysical Data Sets at Uturuncu Volcano, Bolivia
Uturuncu volcano in southern Bolivia is something of a “zombie” volcano – presumed dead, but showing signs of life. The volcano has not erupted in 250 kyr, but is exhibiting unres…
Deriving Mercury geodetic parameters with altimetric crossovers from the Mercury Laser Altimeter (MLA)
Based on previous applications of laser altimetry to planetary geodesy at GSFC, we use the recently developed PyXover software package to analyze altimetric crossovers from the Me…
Snow surface albedo changes in the last two decades across the South America (11°N-76°S): Some highlights revealed by s…
Snow is among the most reflective of natural surfaces on Earth and in its reflectance, also known as snow surface albedo (SSA), a small SSA decrease can increase its absorption of…
Spruce Beetle Outbreak Increases Streamflow from Snow-Dominated Basins in Southwest Colorado, USA
Bark beetle outbreaks have impacted over 58 million acres of coniferous forest in the Western US since 2000, an area slightly larger than the state of Utah. Most of these beetle-i…
Carbon geochemistry of the Atlantis Massif (IODP Expedition 357): Implications for carbonation of mantle peridotites
The carbon geochemistry of serpentinized peridotites and gabbroic rocks recovered during IODP Expedition 357 on the Atlantis Massif (AM) was examined to characterize carbon source…
Resolving Magnetopause Shadowing Using Multi-Mission Measurements of Phase Space Density
Loss mechanisms act independently or in unison to drive rapid loss of electrons in the radiation belts. Electrons may be lost by precipitation into the Earth’s atmosphere, or thro…
Dislocation creep of olivine: Backstress evolution controls transient creep at high temperatures
Transient creep occurs during geodynamic processes that impose stress changes on rocks at high temperatures. The transient is manifested as evolution in the viscosity of the rocks…
Stochastic Simulation of Tropical Cyclones for Risk Assessment at One Go: A Multivariate Functional PCA Approach
A multivariate functional principal component analysis (PCA) approach to the full-track simulation of tropical cyclones (TCs) is developed for risk assessment. Elemental variables…
Simulation of diurnal variation of sub-ionospheric VLF transmitter signals using machine learning approach
This paper shows simulation models for diurnal variation of sub-ionospheric Very Low Frequency (VLF) signals using machine learning approach. Recording of VLF transmitter signals …
Chasing Sustainable Development: A Network Approach to Rank Countries in the Agenda 2030
In 2015, the United Nations established the Agenda 2030 for sustainable development, addressing the major challenges the world faces and introducing the 17 Sustainable Development…
Eddy-mean flow interactions and vertical eddy energy redistribution associated with the standing meander in the Antarct…
Recent studies suggest that local eddy-mean flow interactions associated with standing meanders play key roles in the dynamics of the Antarctic Circumpolar Current. Here we explor…
On the Hemispheric Origins of MWP1b
Antarctica has been proposed as the dominant source of the meltwater that entered the oceans during Meltwater Pulse 1b (MWP1b) that occurred approximately 11,500 years ago. The de…
Sources of uncertainty in multi-model large ensemble projections of the winter North Atlantic Oscillation
Projections of the winter North Atlantic circulation exhibit large spread. Coupled Model Intercomparison Project archives typically provide only a few ensemble members per model, …
Transient creep by long-range dislocation interactions in subduction zones
Large earthquakes transfer stress from the shallow lithosphere to the underlying viscoelastic lower crust and upper mantle, inducing transient creep during the postseismic interva…
Assessing CryoSat-2 Antarctic snow freeboard retrievals using data from ICESat-2
NASA’s Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) laser altimeter launched in Fall 2018, providing an invaluable addition to the polar altimetry record generated by ESA…
Internet of Samples: Creating and Mapping Controlled Vocabularies for Specimen Type, Material Type, and Sampled Feature
Material samples are vital across multiple scientific disciplines with samples collected for one project often proving valuable for additional studies. The Internet of Samples (iS…
Concentration, transportation, and deposition of microplastics along the Savannah River, Georgia (USA).
Despite extensive research into the transport and fate of oceanic microplastics (MP, <5mm in size), there is comparatively little focus on river systems considered to be pathways …
Total Surface Current Vector and Shear from a Sequence of Satellite images: Effect of Waves in Opposite Directions
The Total Surface Current Velocity (TSCV) - the horizontal vector quantity that advects seawater - is an Essential Climate Variable, with few observations available today. The TSC…
Hydrological Assessment of Interconnected River Basins in Semi-Arid Region of Peruvian Andes
Freshwater is limited in the semi-arid Arequipa region in Southern Peru that is home to more than 1.3 million people, agricultural and industrial sectors. To address water demand,…
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