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Showing 11251 to 11300 of 22070 works
Compositional layering in Io driven by magmatic segregation and volcanism
Magmatic segregation and volcanic eruptions transport tidal heat from Io’s interior toits surface. Several observed eruptions appear to be extremely high temperature (≥1600 K),sug…
Baseflow Age Distributions and Depth of Active Groundwater Flow in a Snow-Dominated Mountain Headwater Basin
Deeper flows through bedrock in mountain watersheds could be important but lack of data to characterize bedrock properties and link flow paths to snow-dynamics limits understandin…
Mantle and crustal sources of magmatic activity of Klyuchevskoy and surrounding volcanoes in Kamchatka inferred from ea…
Klyuchevskoy and surrounding volcanoes in central Kamchatka form the Northern Group of Volcanoes (NGV), which is an area of the particularly diverse and intensive Pleistocene-Holo…
Does export production measure transient changes of the biological carbon pump under global warming?
In a widely-held conception, the biological carbon pump (BCP) is equal to the export of organic matter out of the euphotic zone. Using global ocean-atmosphere model experiments we…
A Mathematical Modeling for Stability of Crevasses
Calving is the process of blocks of ice detaching from an ice shelf of grounded calving cliff. Here, we focus on calving that occurs through the propagation of fractures through a…
Climate extremes factor attribution: a small data challenge in ML realm
The identification of factors driving the climate extremes have been conventionally driven by the physical models evaluated using global climate models and/or using statistical an…
3D Full Waveform Inversion for Laterally Varying Layered Media
Abstract In order to decipher complex subsurface structures, various seismic imaging techniques have been developed. Full Waveform Inversion (FWI) is one of the most sophisticated…
Global Frictional Equilibrium via Stochastic, Local Coulomb Frictional Slips
Natural variability of fault friction and slip uncertainty exist in the Earth's crust. To what extent it influences crustal stress and its evolution is intriguing. We established …
Top-of-Atmosphere Radiation Budget and Cloud Radiative Effects over the Tibetan Plateau and Adjacent Monsoon Regions fr…
This study investigates top-of-atmosphere (TOA) radiation budget (Rt) and cloud radiative effects (CREs) over the Tibetan Plateau (TP) and adjacent Asian monsoon regions including…
Electrostatic Waves and Electron Heating Observed over Lunar Crustal Magnetic Anomalies
Above lunar crustal magnetic anomalies, large fractions of solar wind electrons and ions can be reflected and stream back towards the solar wind flow, leading to a number of inter…
The insurance effect of nature-based solutions to support climate adaptation
Nature-based solutions (NBS) can act as risk redistribution elements within risk management strategies in which insurances play an important role. The (re)insurance industry has b…
Influence of geochemical features on the mechanical properties of organic matter in shale
Organic matter is an important constituent in organic-rich shale, which influences the hydrocarbon generation, as well as the mechanical behavior, of shale reservoirs. The physica…
Mangroves as a Source of Alkalinity and Dissolved Carbon to the Coastal Ocean: A Case Study from the Everglades Nationa…
Most research evaluating the potential of mangroves as a sink for atmospheric carbon has focused on carbon burial. However, the few studies that have quantified lateral exchange o…
A Global LIS/OTD Climatology of Lightning Flash Extent Density
Previous lightning climatologies derived from Lightning Imaging Sensor (LIS) and Optical Transient Detector (OTD) total lightning measurements have quantified lightning frequency …
Geomorphological analysis of the southwestern margin of Xanadu, Titan: Insights on tectonics
Evidence for tectonic activity on Titan is provided by the presence of eroded mountain ranges. Xanadu is an equatorial region of Titan characterized by a complex topography, even …
Homogenization of the Daily Land Skin Temperature (LST) over China from 1960 to 2017
Land skin temperature (LST) is one of the most important factors in the land-atmosphere interaction process. Raw measured LSTs may contain biases due to instrument replacement, ch…
Assessing Satellite-derived Inter-annually Varying Snow/Firn Density Estimates Over the Greenland Ice Sheet during 2003…
Knowledge of snow/firn density is important for deriving ice sheet mass change from satellite altimetry and for surface mass balance modeling. However, snow/firn densities are lar…
Towards a Mechanistic Understanding of One of the Rainiest Spots on Earth
According to TRMM and GPM satellite precipitation composites, a broad maritime area over the far eastern Tropical Pacific and western Colombia houses one of the rainiest spots on …
A novel approach to identifying mantle-equilibrated zircon by using trace element chemistry
One of the requirements for inferring local mantle redox states via zircon Ce/Ce* oxybarometry and Ti-in-zircon thermometry is to select mantle-equilibrated zircon (i.e., unaltere…
Numerical Simulation of the Aerosol Impacts on Winter Storm in Upstate New York
A three-day precipitation event was simulated using Weather Research and Forecasting (WRF) model coupled with a Spectral Bin Microphysical (SBM) scheme. On January 6th, a synoptic…
Pervasive Warming Bias in CMIP6 Tropospheric Layers
The tendency of climate models to overstate warming in the tropical troposphere has long been noted. Here we examine individual runs from 38 newly-released Coupled Model Intercomp…
In-Situ Measurements of Cirrus Clouds on a Global Scale
Observations of high-altitude cirrus clouds are reported from measurements made during routine monitoring of cloud properties on commercial aircraft as part of In-Service Aircraft…
Improving water-energy nexus in mine tailings management using a real options approach
Mine tailings are waste obtained after processing mineral ore to acquire element(s) of interest. They are a mixture of ground rocks with process effluents. The largest water sink …
Description of the NASA GEOS Composition Forecast Modeling System GEOS-CF v1.0
The Goddard Earth Observing System composition forecast (GEOS-CF) system is a high-resolution (0.25 degree) global constituent prediction system from NASA’s Global Modeling and As…
Advances in understanding large-scale responses of the water cycle to climate change
Globally, thermodynamics explains an increase in atmospheric water vapor with warming of around 7%/°C near to the surface. In contrast, global precipitation and evaporation are co…
The Cushion Region and Dayside Magnetodisc Structure at Saturn
A sustained dipolar magnetic field between the current sheet outer edge and the magnetopause, known as a cushion region, has yet to be observed at Saturn. Whilst some signatures o…
Electrification of the thundercloud supporting origination of the relativistic runaway electron avalanches
The structure of electric fields in the atmosphere still escapes from the detailed in situ measurements. Few balloon flights although providing us with overall knowledge of possib…
Complex basal conditions and their influence on ice flow at the onset of the Northeast Greenland Ice Stream
The ice stream geometry and large ice surface velocities at the onset region of the Northeast Greenland Ice Stream (NEGIS) are not yet well reproduced by ice sheet models. The qua…
Role of Environmental Factors in Rapid Intensification and Weakening of Cyclone Ockhi (2017)
In this study, we investigate the oceanic and atmospheric processes that have contributed to the Rapid Intensification (RI) and Rapid Weakening (RW) of Cyclone Ockhi using the HYb…
Statistical and Cellular Analysis of Rhizopus stolonifer Growth as Affected by Potassium Sorbate Concentration
Known as black bread mold, R. stolonifer is a fungus commonly found in contaminated food products such as meat, preserved, and/or baked goods. Potassium sorbate is a common food p…
Monitoring hydrological variables from remote sensing and modelling in the Congo River basin
This study intends to integrate heterogeneous remote sensing observations and hydrological modelling into a simple framework to monitor hydrological variables in the poorly gauged…
Atmospheric deposition promotes relative abundance of main dimethylsulfoniopropionate producers in the western North Pa…
Haptophytes and Dinoflagellates are two cosmopolitan algae associated with dimethylsulfoniopropionate (DMSP) synthesis, which regulates the marine biogenic flux of dimethylsulfide…
Whistler-mode waves excited by anisotropic hot electrons with a drift velocity in Earth’s magnetosphere: Linear theory
With a linear theoretical model, we have investigated the properties of whistler waves excited by anisotropic hot electrons with a drift velocity, which is usually neglected in pr…
Source time function clustering reveals patterns in earthquake dynamics
We cluster a global data base of 3529 M>5.5 earthquakes in 1995-2018 based on a dynamic time warping dissimilarity of their source time functions (STFs). The clustering exhibits d…
Spatial and temporal variability of rainfall towards watershed water resources management
Analysis of multi-temporal and spatial trends of rainfall in a river basin is an effective tool for water resources management based on delimited hotspots of water scarcity and fl…
Fallout of lead over Paris from the 2019 Notre-Dame cathedral fire
The roof and spire of Notre-Dame cathedral in Paris that caught _re and collapsed on April 15, 2019, were covered with 460 tons of lead (Pb). Government reports documented Pb depo…
Glacial runoff buffers drought through the 21st century---but models disagree on the details
Global climate model projections suggest that 21st century climate change will bring significant drying in the midlatitudes. Recent glacier modeling suggests that runoff from glac…
Principles of lithospheric plates movements and earthquakes triggering (shortened version)
Paper presents reasons why sometimes Full or New Moons correlate with earthquakes and sometimes not. Solution follows from calculations of tidal torques, dependent on Moon and Sun…
A state estimate of the routes of the upper branch of the Atlantic Meridional Overturning Circulation
The origins of the upper branch of the Atlantic Meridional Overturning Circulation (AMOC) are traced with backward-in-time Lagrangian trajectories, quantifying the partition of vo…
Proposal for Updated Standards and Specifications for Terrestrial Gravity Measurements
The mission of the National Geodetic Survey (NGS) is to define, maintain and provide access to the National Spatial Reference System (NSRS). The NSRS provides a consistent coordin…
Millisecond Pulsars as Standards: Timing, Positioning and Communication
Millisecond Pulsars (MSPs) are likely to be or to become a timing, navigation, and metadata communication standard across the galaxy. Regarding timing, they provide a parallel clo…
Rift Focussing and Magmatism During Late-Stage Rifting in Afar, Ethiopia
Processes that facilitate the transition between continental rifting and sea-floor spreading remain unclear. Variations in the spatial distribution of extension through Afar and i…
Is ET Lurking in Our Cosmic Backyard?
The ultimate technosignature is an alien artifact. We should look for them near Earth. The great virtue of searching for artifacts is their lingering endurance in space, long afte…
Electrical Resistivity Imaging (ERI) of solute transport under transient conditions within a model hillslope transect.
The direct observation of water movement via Electrical Resistivity Imaging (ERI) can leverage the understanding of the processes that lead to the occurrence of variable residence…
Dust Evolution in the Late Stages of Planet Forming Disks
We study the properties of dust in disks to constrain models of planet formation. We measure and analyze the spectral index for the dust continuum emission at millimeter wavelengt…
Meso-Cenozoic deformation history of Thailand; insights from calcite U-Pb geochronology
U-Pb dating of calcite veins allows direct dating of brittle deformation events. Here, we apply this method to hydrothermal calcite veins in a fold-and-thrust belt and a large sca…
Applications of the African Flood and Drought Monitor to Vector- and Water-borne Disease, and to Human Well-being
The African Flood and Drought Monitor (AFDM) was developed by Princeton University in collaboration with UNESCO-IHP, regional hydroclimate centers in Africa and ICIWaRM. Based on …
Nonradial Oscillations of Saturn: Forcing of the Slowest Spiral Density Waves in the C Ring by I-modes and R-modes and …
It is now known that many spiral density waves in Saturn’s C ring are forced by resonant gravitational interactions with the planet’s nonradial oscillations. Observations of their…
Rapid assessment of SST and Chlorophyll concentration variability due to cyclone Bulbul in the Bay of Bengal using remo…
An assessment on the changes in some biological and physical properties of Bay of Bengal because of tropical cyclone BULBUL (landfall on 9 November 2019) was studied using ocean c…
sTUDY OF SOLAR rADIO SPIKES PROPERTIES OBSERVED AT FREQUENCIES 0.01-8.4 ghZ
Fast transients in the form of spiky radio bursts have been observed in solar flares events, emitting at different ranges in frequency. These dynamical phenomena show up as high b…
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