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Showing 5801 to 5850 of 59105 works
How do Internal Waves Create Turbulence and Mixing in the Ocean?
Mixing in the ocean interior clearly draws its energy from the internal wave field. The pathway is often described as “Internal wave breaking“, contrary to the observation that th…
Compositional Controls on the Distribution of Brine in Europa's Ice Shell
The composition of impurities in ice controls the stability of liquid water and thus the distribution of potential aqueous habitats. We present a framework for modeling the brine …
Crustal structure of northern Borneo from VDSS: Implications for subduction termination and the tectonic reconstruction…
The post-subduction tectonic evolution of northern Borneo, which experienced two sequential subduction episodes of opposite polarity in the Neogene, is still widely debated with f…
Bonded discrete element simulations of sea ice with non-local failure: Applications to Nares Strait
The discrete element method (DEM) can provide detailed descriptions of sea ice dynamics that explicitly model floes and discontinuities in the ice, which can be challenging to rep…
Effects of environmental temperature on the effectiveness of microbially induced carbonate precipitation
Microbial-induced calcium carbonate precipitation (MICP) is an innovative technique used for soil improvement, for controlled reduction of permeability in porous media or immobili…
Validation of Ionospheric Specifications During Geomagnetic Storms: TEC and foF2 during the 2013 March Storm Event-II
Assessing space weather modeling capability is a key element in improving existing models and developing new ones. In order to track improvement of the models and investigate impa…
Bias in CMIP6 historical U.S. severe convective environments driven by bias in mean-state near-surface moist static ene…
This work evaluates how well Coupled Model Intercomparison Project 6 (CMIP6) models reproduce the climatology of North American SCS environments in ERA5 reanalysis and examines wh…
Resolving Differences in the Rupture Properties of Prominent Earthquakes in Southern California with Bayesian Source Sp…
The spectra of earthquake waveforms can provide important insight into rupture processes, but the analysis and interpretation of these spectra is rarely straightforward. Here we d…
New Rock Magnetic Analysis of Ultramafic Cores from the Oman Drilling Project and Its Implications for Alteration of Lo…
Detailed rock magnetic analyses of ultramafic rock samples recovered from the Wadi Tayin massif as part of the Oman Drilling Project provide a unique opportunity to understand the…
A New Model of Solar Ultraviolet Irradiance Variability with 0.1-0.5 nm Spectral Resolution
Key Points • NRLSSI2h solar irradiance variability model with 0.1-0.5 nm resolution captures larger UV. spectral line variability relative to continua. • At 300-400 nm, dominated …
Managing Analytical Data from Pristine Returned Samples in Compliance with NASA’S Data Strategy: The Astromaterials Dat…
Analytical studies of astromaterials samples returned by NASA space missions generate unique and highly valuable data that contribute fundamentally to our knowledge and understand…
Solution of Single, Permanent, Continuous, Clean and Free Energy Source
Purpose: To propose a clean, maintenance-free, free of charge, uninterrupted and permanent energy source solution for mankind. Methods: Based on the all known fact that solar ener…
Improved modeling of Mars' HDO cycle using a Mars' Global Climate Model
HDO and the D/H ratio are essential to understand Mars past and present climate, in particular with regard to the evolution through ages of the Martian water cycle. We present her…
Ocean Surface Wave Effects on Development of Explosive Cyclone
Atmosphere-ocean interactions are thermodynamically important in the development of explosive cyclones. An explosive cyclone which emerged in the Northwestern Atlantic in January …
Advanced regression models for ionospheric delay prediction using GNSS measurements
Achieving high accuracy for Global Navigation Satellite Systems (GNSS) positioning at low cost, is the main reason for the wide acceptance that has received the technique of Preci…
The carbon sink potential of southern China after two decades of afforestation
Afforestation and land use changes have turned Southern China into one of the largest carbon sinks globally, which sequesters carbon from the atmosphere thus mitigating climate ch…
Marsh sedimentation controls delta top morphology, slope, and mass balance
Rising sea levels, subsidence, and decreased fluvial sediment load threaten river deltas and their marshes. However, the feedbacks between fluvial and marsh deposition remain weak…
Using VLF Transmitter Signals at LEO for Plasmasphere Model Validation
This study presents analysis of very low frequency (VLF) transmitter signal measurements on the Very-Low-Frequency Propagation Mapper (VPM) CubeSat in low-Earth orbit. Six months …
Forecasting of Localized Geomagnetic Disturbances in Global Models: Physics and Numerics
One of the prominent effects of space weather is the variation of electric currents in the magnetosphere and ionosphere, which can cause localized, high amplitude Geomagnetic Dist…
Dynamical complexity response in Traveling Ionospheric Disturbances across Eastern Africa sector during geomagnetic sto…
This paper examines the response of dynamical complexity in Traveling Ionospheric Disturbances (TIDs) across Eastern Africa sector during 2015 major geomagnetic storms. Detrended …
Deep ocean learning of small scale turbulence
Turbulent mixing at the sub-meter scale is an essential component of the ocean’s meridional overturning circulation and its associated global redistribution of heat, carbon, nutri…
Strong Storm-effect behaviors of topside and bottom-side ionosphere under low solar activity: Case study in the geomagn…
The 25-27 August geomagnetic storm was the third largest storm in 24th solar cycle, which was a surprising space event that generated in the background of very low solar activity.…
A new automatic quality control system for ocean profile observations and impact on ocean warming estimate
The rapidly enhancing global hydrographic in-situ observations archive is data quality heterogeneous. Different data applications (e.g., climate change science) require a high-per…
Astrobiology for Education and Outreach: Three Immersive Projects
The search for life in the universe can inspire students and members of the public alike. Three projects are described which provide an immersive experience with astrobiology. The…
The evolution of the Eastern Himalayan syntaxis revealed by India (Tethyan Himalaya Series) in central Myanmar
In the Katha Range of central Myanmar, lithologic tracers and pressure-temperature-deformation-time data identify Cambro-Ordovician, Indian-affinity Tethyan Himalaya Series (THS),…
DFe patterns impacted by shallow hydrothermal sources along a transect through the Tonga-Kermadec arc
In the Western Tropical South Pacific, a hotspot of N2-fixing organisms has recently been identified. The survival of these species depends on the availability of dissolved iron (…
Decoupling of permafrost thaw and vegetation growth could mean both ongoing nutrient limitation and an emergent source …
Biogeochemical cycling in permafrost-affected ecosystems remains associated with large uncertainties, which could impact the Earth’s greenhouse gas budget and future climate mitig…
Operational assimilation of spectral wave data from the Sofar Spotter network
Historically, the sparseness of in situ open-ocean wave and weather observations has severely limited the forecast skill of weather over the ocean with major social and economic c…
Dynamical Invigoration of Electrified Storms
The recent emergence of compelling evidence (Mudiar et al., 2018, 2021a 2021b) regarding a significant impact of cloud electrification on rain microphysical processes raises curio…
Limitations of separate cloud and rain categories in parameterizing collision-coalescence for bulk microphysics schemes
Warm rain collision coalescence has been persistently difficult to parameterize in bulk microphysics schemes. Here we use a flexible bulk microphysics scheme with bin scheme proce…
Pure Interchange Oscillations of Thin Filaments in an Average Magnetosphere
This paper describes magnetospheric waves of very long wavelength in thin magnetic filaments. We consider an average magnetospheric configuration with zero ionospheric conductance…
Bin, bulk, or BOSS? Producing bulk microphysics schemes that emulate bin microphysics using Bayesian inference
The Bayesian Observationally Constrained Statistical–Physical Scheme (BOSS) is a bulk microphysics framework that calculates process rates using generalized power laws of the mome…
Development and performance of solid Pb-PbCl2 non-polarized electrode
Non-polarized electrodes are used to measure the potential differences between two points of ionic conductors. They have been widely used in geoelectric measurements,e.g., magneto…
On the noise estimation in Super Dual Auroral Radar Network data
The Super Dual Auroral Radar Network (SuperDARN) currently consists of more than thirty high-frequency (HF, 3–30 MHz) radars covering mid-latitude to polar regions in both hemisph…
Examining the relationships between basal channels and ice shelf structural evolution with repeat, high-resolution elev…
Ice shelves control the stability of ice sheets and regulate ice sheet contribution to sea level rise by buttressing ice flow. Most of Greenland’s ice shelves have already been lo…
Observed Scaling of Precipitation Extremes with Surface Temperature and Convective Available Potential Energy (Invited …
Changes in precipitation extremes remain a key uncertainty as the climate warms. Improved understanding of their evolution is crucial for effective water management. A number of s…
Ten Steps to Promote a Stronger Emphasis on Student Learning
Inspired by the AAHE Assessment Forum’s Principles for good practice for assessing students’ learning, the author has generated Ten Steps (1992) to Promote a Stronger Emphasis on …
Climatic influences on summer use of winter precipitation by trees
Trees in seasonal climates may use water originating from both winter and summer precipitation. However, the seasonal origins of water used by trees have not been systematically s…
Magnetic Perturbation Events (MPEs) that cause GICs: Investigating their Interhemispheric Conjugacy and Control by IMF …
Nearly all studies of impulsive magnetic perturbation events (MPEs) that can produce dangerous geomagnetically induced currents (GICs) have used data from the northern hemisphere.…
Simulated hydrological dynamics and coupled iron redox cycling impact methane production in an Arctic soil
The fate of organic carbon (C) in permafrost soils is important to the climate system due to the large global stocks of permafrost C. Thawing permafrost can be subject to dynamic …
Emergence of the physiological effects of elevated CO2 on land-atmosphere exchange of carbon and water
Elevated atmospheric CO2 (eCO2) influences the carbon assimilation rate and stomatal conductance of plants, and thereby can affect the global cycles of carbon and water. However, …
Viscosity of crystal-mushes and implications for compaction-driven fluid flow
Centrifuging experiments on olivine, chromite, and plagioclase aggregates saturated in basaltic liquid show evidence of viscous compaction. The compaction profiles are inconsisten…
MAGMA: Machine learning Automatic picker for Geothermal Microseismicity Analysis for practical procedure to reveal fine…
In geothermal development, microseismic monitoring is important technique to monitor the various phenomena in the reservoirs throughout location, activity, and magnitude of micros…
Representing Mesoscale Cloud Variability in Superparameterized Climate models
In atmospheric modeling, superparameterization has gained popularity as a technique to improve cloud and convection representations in large scale models by coupling them locally …
Out of the blue: volcanic SO2 emissions during the 2021-2022 Hunga Tonga - Hunga Ha’apai eruptions
The January 15, 2022 phreatomagmatic eruption of the submarine Hunga Tonga-Hunga Ha’apai (HTHH) volcano (Tonga) generated an explosion of historic magnitude, and was preceded by ~…
Coupled urban change and natural hazard consequence model for community resilience planning
This paper presents a new coupled urban change and hazard consequence model that considers population growth, a changing built environment, natural hazard mitigation planning, and…
Modeling and Analysis of Sediment Trapping Efficiency of Large Dams using Remote Sensing
Sediment trapping behind dams is currently a major source of bias in large-scale hydro-geomorphic models, hindering robust analyses of anthropogenic influences on sediment fluxes …
New Model-Free Daily Inversion of NOx Emissions using TROPOMI (MCMFE-NOx): Deducing a See-Saw of Halved Well Regulated …
Current approaches to estimate NOx emissions fail to account for new and small sources, biomass burning, and sources which change rapidly in time, generally don’t account for meas…
Trophic interactions decouple soil carbon temperature response from that of microbial decomposers
Soil organic carbon (SOC) stocks represent a large component of the global carbon cycle that is sensitive to warming. Modeling and empirical studies often assume that temperature …
Paleogene syn-collisional leucogranite with rutile exsolution in garnet, southern Tibet
The Gangdese arc magmatism was active in response to the Mesozoic subduction of the Neo-Tethyan oceanic lithosphere and the Cenozoic collision between the Indian and Asian contine…
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