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Showing 13851 to 13900 of 22070 works
Dynamically-connected tracer and buoyancy mixing coefficients in eddy parameterization schemes
The Gent-McWilliams (GM) and Redi eddy parameterizations are essential features to ocean climate models. GM helps to maintain stratification, balancing the steepening of isopycnal…
Lightning Waveform Classification Based on Deep Convolutional Neural Network
With the application of lightning data in meteorology, electric power as well as public safety, massive lightning data is accumulated. Meanwhile, a synthesized and complicated pro…
Anthropic induced gullies on old anthropic lake beds in Romania
Anthropic interventions at catchment level modify the hydrological morphology and fluxes, especially in the last 50-60 years. In the North-Eastern Romania hilly area for various r…
EVALUATION OF DROUGHT LEVEL AND ANTHROPOGENIC LAND USE IMPACT ON DUST EMISSION IN SOUTHWESTERN UNITED STATES: QUANTITAT…
Quantifying the effect of anthropogenic land use change on dust emission is a contentious issue. In this research, 1508 dust point sources were detected in the Southern High Plain…
Numerical Models for the DRESDYN Precession Dynamo Experiment
More than 100 years ago, Henri Poincare in his pioneering study showed that the inviscid base flow in a precessing spheroid is described by a constant vorticity solution, the spin…
How tropical convection couples high moist static energy over land and ocean
We show that in the tropics, tropical atmospheric dynamics force the subcloud moist static energy (MSE) over land and ocean to be very similar in, and only in, regions of deep con…
Inverting magnetotelluric data with distortion correction -- Stability, uniqueness and trade-off with model structure
Static distortion of magnetotelluric data is a common effect that can impede the reliable imaging of subsurface structures. Recently we presented an inversion approach that includ…
Coupled Retrieval of the Three Phases of Water from Spaceborne Imaging Spectroscopy Measurements
Measurements of reflected solar radiation by imaging spectrometers allow to quantify water in different states (solid, liquid, gas) thanks to the discriminative absorption lines i…
Evolution of an atmospheric Kármán vortex street from high-resolution satellite winds: Guadalupe Island case study
Vortex streets formed in the stratocumulus-capped wake of mountainous islands are the atmospheric analogues of the classic Kármán vortex street observed in laboratory flows past b…
Comparison of Equatorial Plasma Bubbles and Spread-F Observations Using 2-D GPS ΔTEC Data Maps and Ionosonde Measuremen…
We report our cross-validation of equatorial plasma bubble (EPB) observations based on 2-D ΔTEC data maps over the South American sector, against equatorial spread-F (ESF) observa…
Bayesian benchmarking of off-normal occurrence rates for US underground natural gas storage facilities
Defining a baseline for the frequency of off-normal occurrences at underground natural gas storage facilities is critical to maintaining safe operation and to the development of a…
Three-dimensional smoothed particle hydrodynamics modeling of preferential flow dynamics at fracture intersections on a…
The physical mechanisms that govern preferential flow dynamics in unsaturated fractured rock formations are complex and not well understood. Fracture intersections are critical re…
MAIN REASONS OF ERRORS IN SATELLITE DERIVED PRIMARY PRODUCTION MODELS: CASE STUDY OF THE WESTERN PART OF THE JAPAN/EAST…
Application of satellite derived models of primary production using ocean colour remote sensing data opens new possibilities of estimation of its time and spatial variability at d…
Mars’ ionospheric interaction with comet C/2013 A1 Siding-Spring’s coma at their closest approach as seen by Mars Expre…
On 19 October 2014, Mars experienced a very close encounter with Comet C/2013 A1 Siding Spring. Using data from the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MAR…
Earth and Space Sciences Data Are a World Heritage -- Community Partnership to Develop Best Practices Across the Data L…
Researchers are challenged with preparing and complying with data management plans and open data mandates. The ocean science repository community has demonstrated the benefits of …
Comparison of isotopic signatures in speleothem records and model simulations for the past millennium
Global changes in climate not only affect its mean, but also its variability, which mainly impacts society. For better projections of future climate changes it is crucial to impro…
Ethics of Nuclear Winter and Climate Intervention (Geoengineering) Research and of Making Policy Recommendations
There are many ethical issues that come up in geoscience research, and here I use my own experience to illustrate two of them. Ethics, unlike science, is based on values and not t…
Editorial: Impact of special collections in JGR Space Physics
Journals occasionally solicit manuscripts for special collections, in which all papers are focused on a particular topic within the journal’s scope. For the Journal of Geophysical…
Spatial Covariance Modeling for Stochastic Subgrid-Scale Parameterizations Using Dynamic Mode Decomposition
Stochastic parameterizations are broadly used in climate modeling to represent subgrid scale processes. While different parameterizations are being developed considering different…
Characterization of saline aqueous solutions upwelling under Ceres’ surface: a focus on chemical equilibria in the H2O-…
In Ceres dwarf planet, a portion of a prior ocean at shallow depth may still exist today as localized reservoirs. In this work, we constrained chemical and geophysical properties …
Fault-Related Thermal Springs: Water Origin and Hydrogeochemical Processes at Liquiñe Area (Southern Volcanic Zone, Chi…
Geothermal activity in the Chilean Southern Volcanic Zone is strongly controlled by the regional Liquiñe-Ofqui Fault System (LOFS) and the Andean Transverse Faults (ATF). We analy…
Contribution of IASI to the observation of the dust aerosol diurnal cycle over Sahara
The Infrared Atmospheric Sounder Interferometer (IASI) is well suited for monitoring of dust aerosols because of its capability to determine both AOD and altitude of the dust laye…
Exploring the Interior Exposome Using Citizen Science: Initial Results From the New DustSafe Initiative
Studies of interior air exposures to various human and non-human components has largely been restricted to industrial exposures for the purpose of regulation. In contrast, little …
Climatology of Maipo and Rapel river plumes in Central Chile
River-influenced areas are very important coastal ecosystems, due to their influence on nutrients and the structure of planktonic and benthic communities. Many studies have focuse…
Integrating Datasets and Services in the Solid Earth Domain: the EPOS case.
A growing number of initiatives in disparate scientific domains arose in the last decade, with the common goal of clustering data and services resources across Europe and make the…
Tropical Cyclones in High-Resolution Community Atmosphere Model version 5: Evaluation for Western North Pacific
Climate models at high resolution (~25 km horizontal grid spacing) can permit realistic simulations of tropical cyclones (TCs), thus promising the investigation of these high-impa…
Quantitatively deciphering paleostrain from digital outcrops model and its application in the eastern Tian Shan, China
The knowledge of the strain/stress field evolution in time is important to seismic hazard assessment and risk mitigation, and is fundamental to the understanding of the earth dyna…
Cloud Impacts on Photochemistry: Statistical Analysis of Global Chemistry Models and Measurements from the Atmospheric …
The influence of clouds on photochemistry remains a significant uncertainty in global chemistry models. Variability in cloud fraction, morphology, phase and optical properties pro…
TX-ESP and BC-ESP: A Collaborative Educational Seismology Project in Texas and New England
There is growing concern that the quality of science education today is not adequate to provide students with the level of scientific literacy they will need to be effective citiz…
Constraining the Surface Flux of Sea Spray Particles from the Southern Ocean
Modeling the shortwave radiation balance over the Southern Ocean region remains a challenge for Earth system models. To investigate whether this is related to the representation o…
The Henkel Petrophysical Plot: Mineralogy and Lithology from Physical Properties
The Henkel plot (logarithm of magnetic susceptibility versus density of rock samples) reveals that most rocks fall on either a “magnetite trend” or a “paramagnetic trend”. Interpr…
Cloud Detection Algorithm for Hydrometeorological Applications Using Computer Vision Techniques and a Ground-Based Whol…
The Aburrá Valley is a narrow highly complex mountainous terrain located in the Colombian Andes. Due to topographical features of the region, and the tropical setting, the meteoro…
A new integrated technique to remotely detect deep sea polymetallic sulfide
A series of survey protocol for deep sea polymetallic sulfides using not electromagnetic waves but acoustic, electromagnetic, gravity and magnetic, and geochemical methods has bee…
Seamless Transition of Data Analyses and Analytics from a Local Workstation to Scalable, Massively Distributed Processi…
Newer satellite platforms, such as NISAR, are poised to produce huge amounts of data that require large computational resources. Currently, researchers typically download datasets…
Eddy Heat Transport in the South China Sea as Estimated from In Situ Data and an Assimilated Ocean Model
In this study, in situ and assimilated model data are used to study spatiotemporal variation in eddy heat transport (EHT) in the South China Sea (SCS) and associated mechanisms. C…
Instructional Readiness for Change in a Geoscience Learning Ecosystem
Geoscience education is, itself, a dynamical sub-system in the science, technology, engineering and mathematics (STEM) learning ecosystem. Both the larger STEM environment and the…
Evaluation of Text Mining Techniques Using Twitter Data for Hurricane Disaster Resilience
Data obtained from social media microblogging websites such as Twitter provide the unique ability to collect and analyze conversations of the public in order to gain perspective o…
Coupled Modeling of Hydro-Sedimentary Transfer Processes and Socio-Economic Dynamics Evaluating Public Policies to Cont…
Watersheds are complex systems with multiple interactions between physical processes and human-induced socio-economic dynamics. Since the 2000s, numerous flooding and mudslide eve…
RADIATIVE FORCING BY CO₂ OBSERVED AT TOP OF ATMOSPHERE FROM 2002-2019
Spectroscopic measurements at top-of-atmosphere are uniquely capable of attributing changes in Earth’s outgoing infrared radiation field to specific greenhouse gasses. The Atmosph…
Can the tsunami geological record contribute to constrain the tectonic source of the 1755 AD earthquake?
The precise location of the seismic source of Great Lisbon Earthquake is still uncertain. The aim of this work is to use the an onland sedimentary record in southern Portugal to t…
Quantifying Atmospheric Trace Element Deposition over the Ocean on a Global Scale with Satellite rainfall products
Atmospheric input of trace element micronutrients to the oceans is difficult to determine as even with collection of high-quality aerosol chemical concentrations such data by them…
Quantifying the similarity of globally distributed pollen records with paleo-climate networks
Globally consistent natural evidence on past climate evolution is indispensable for climate model evaluations and forecasts. However, it has rarely been investigated quantitativel…
Radar sounding of subsurface water-ice in eastern Coprates and Capri Chasmata, Mars
We surveyed the subsurface structure in eastern Coprates and Capri Chasmata in the equatorial region using high-resolution visible images, digital terrain models, and radar soundi…
A Community of Practice Model Suggests Practical Implications for Teaching Geologic Mapping in the Field
Field trips, camps, and courses are considered a critical experience in the education of future geoscientists. Traditional bedrock geologic mapping continues to play a prominent r…
A Parametric Shape Model Applied to Tracing the Migration of the Objects Near an Asteroid
In the past decades, space missions to small bodies (Galileo, OSIRIS-REx, Hayabusa, Hayabusa2, Chang’ e 2, Rosetta, etc.) have enriched us greatly with a lot of new knowledge on o…
Evolution of high-speed jets and plasmoids downstream of the quasi-perpendicular bow shock
Plasma structures with enhanced dynamic pressure, density or speed are often observed in Earth’s magnetosheath. We present a statistical study of these structures, known as jets a…
Improved constraints on northern extratropical CO2 fluxes obtained by combining surface-based and space-based atmospher…
Top-down estimates of CO2 fluxes are typically constrained by either surface-based or space-based CO2 observations. Both of these measurement types have spatial and temporal gaps …
Wind-driven evolution of the North Pacific subpolar gyre over the last deglaciation
North Pacific atmospheric and oceanic circulations are key missing pieces in our understanding of the reorganisation of the global climate system since the Last Glacial Maximum (L…
Integration of GPS and InSAR Data for Resolving 3-Dimensional Crustal Deformation
We develop an algorithm to integrate GPS and InSAR data for a 3-dimensional crustal deformation field at the Earth’s surface. In the algorithm discrete GPS data points are interpo…
Smart Climate Hydropower Tool: artificial intelligence for effective hydropower production forecast and management
Smart Climate Hydropower Tool is an innovative web-cloud-based service that implements a set of data-driven methods for river discharge. An application for two catchments in South…
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