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Showing 11501 to 11550 of 22070 works

A binomial stochastic framework for efficiently modeling discrete statistics of convective populations

Understanding cloud-circulation coupling in the Trade wind regions, as well as addressing the grey zone problem in convective parameterization, requires insight into the genesis a…

Slab Thinning Controls the Distribution of Large Deep Intraslab Earthquakes in the Western Pacific Subduction Zones

The nature of deep earthquakes with depths greater than 70 km is enigmatic because brittle failure at this high-temperature and the high-pressure regime should be inhibited. Three…

Evidence for a Listric Wasatch Fault From the 2020 Magna, Utah, Earthquake Sequence

The 18 March 2020 M 5.7 Magna earthquake near Salt Lake City, Utah, offers a rare glimpse into the subsurface geometry of the Wasatch fault system—one of the world’s longest activ…

Non-linear Least Square Fitting Technique for the Determination of Field Line Resonance Frequency in Ground Magnetomete…

The accurate determination of the Field Line Resonance (FLR) frequency of a resonating geomagnetic field line is necessary to remotely monitor the plasmaspheric mass density durin…

Near-field modeling of the 1964 Alaska tsunami: the role of splay faults and horizontal displacements

Near-field observations of tsunami waves generated by the Mw9.2 1964 Alaska earthquake reveal a complex relationship between coseismic slip and the tsunami wavefield in the source…

Integration of submerged aquatic vegetation motion within hydrodynamic models

Aquatic models used for both freshwater and marine systems frequently need to account for submerged aquatic vegetation (SAV) due to its influence on flow and water quality. Despit…

Optically Quantifying Spatiotemporal Responses of Water Injection-Induced Strain via Downhole Distributed Fiber Optics …

Harsh subsurface environment limits robust workability of on-site instrumentation to be leveraged to track solid Earth’s dynamics. Distributed fiber-optic sensing technology (DFOS…

It’s Not Just About Sea Surface Temperature: Synthesizing Information to Communicate Climate Change Projections for Eur…

Environmental change in coastal and shelf seas provides a challenge to fisheries and aquaculture worldwide. Coupled physical-biogeochemical models can be used to create projection…

How Alaska's Barry Arm Can Help Us Prepare for Climate Change Hazards

A slope at Barry Arm, in Alaska’s Prince William Sound, is deforming at a varying rate up to tens of meters per year above a retreating glacier and deep fjord that is a popular re…

Machine Learning for Outlier Detection in Algal and Cyanobacterial Fluorescence Signals

Many drinking water utilities drawing from waters susceptible to harmful algal blooms (HABs) are implementing monitoring tools that can alert them of the onset of potential blooms…

Data-driven: Alaska Citizen Scientists Quantify Stories of Berry Variability in Changing Climates

Accessibility of scientific research to underrepresented voices is a forefront issue. Intentionally-designed citizen science programs, such as the University of Alaska Fairbanks’ …

Recent Advances in Visual Sensing and Machine Learning Techniques for in-situ Plankton-taxa Classification

The assessment of planktonic organisms is a prevailing task in marine ecology and oceanography as planktons form the principal food source for consumers at higher trophic levels. …

Australian warming: observed change and global temperature targets

Quantifying warming of the Earth’s climate system since the late 19th century and the ratio of regional to global warming are required when examining implications of Paris Agreeme…

Atomic oxygen ion-neutral collision frequency models at ionospheric temperatures

The Earth’s F region ionosphere is dominated by the collision between atomic oxygen and its first positive ion. An accurate corresponding collision frequency model is necessary to…

Clogging caused by particle migration during groundwater recharge in uncemented sandstone reservoir

Clogging caused by grain migration during groundwater recharge is a critical problem for long-term operation period of Ground water-source heat pump (GWHP), especially for uncemen…

CNF-based Prediction of COVID-19 Transmission without Considering NPIs

Natural factors and non-pharmaceutical interventions (NPIs) have effect on COVID-19 transmission, but it’s difficult to separate these two factors. The Compound natural factor (CN…

A new full 3D model of cosmogenic tritium 3H production in the atmosphere (CRAC:3H)

A new model of cosmogenic tritium (H) production in the atmosphere is presented. The model belongs to the CRAC (Cosmic-Ray Atmospheric Cascade) family and is named as CRAC:3H. It …

Epic Fails and Big Wins: lessons from 20 years of data infrastructure

Over time, I have worked on a suite of data infrastructure projects, ranging from small to large and simple to complex. Some have been successful, others less so, and a couple are…

Acute Radiation Risks Tool (ARRT) Development for the Upcoming Human Exploration Missions

The health risks of space radiation present big challenges to space exploration, with the possibility of large Energetic Solar Particle Events (ESPEs) inducing Acute Radiation Sic…

The Underexplored Frontier of Ice Giant Dynamos

The Voyager 2 flybys of Uranus and Neptune revealed the first multipolar planetary magnetic fields and highlighted how much we have yet to learn about ice giant planets. In this r…

A Deep Learning Network to Retrieve Ocean Hydrographic Profiles from Combined Satellite and In Situ Measurements

An efficient combination of the data collected by multiple instruments and platforms is needed to obtain accurate 3D ocean state estimates, representing a fundamental step to desc…

Data-driven Equation Discovery of Ocean Mesoscale Closures

The resolution of climate models is limited by computational cost. Therefore, we must rely on parameterizations to represent processes occurring below the scale resolved by the mo…

The interface of science and community: a look into how glacial lake outburst flood modeling and forecasting informatio…

Glacial lake outburst floods (GLOFs) are a natural hazard that affects a number of communities around the world. GLOFs affect a number of downstream communities directly in Alaska…

Simulation-and Discretization-Free Explicit Stochastic Reservoir Operation Optimization Method

The Fletcher-Ponnambalam (FP) method is an explicit stochastic optimization method for design and operations management of storage systems. It has been applied successfully in man…

Elemental composition and chemical evolution of geologic materials in Gale crater, Mars: APXS results from Bradbury Lan…

The Alpha Particle X-ray Spectrometer (APXS) on the rover, , has analyzed the composition of geologic materials along a >20-kilometer traverse in Gale crater on Mars. The APXS dat…

On the use of the term ‘Evapotranspiration’

Evaporation is the phenomenon by which a substance is converted from its liquid into its vapor phase, independently of where it lies in nature. However, language is alive, and jus…

Impacts of Degradation on Water, Energy, and Carbon Cycling of the Amazon Tropical Forests

Selective logging, fragmentation, and understory fires directly degrade forest structure and composition. However, studies addressing the effects of forest degradation on carbon, …

Drivers of marine heatwaves in the East China Sea and the South Yellow Sea in three consecutive summers during 2016-2018

In three consecutive years from 2016 to 2018, extreme ocean warming events, or marine heatwaves (MHW), occurred during boreal summers in the East China Sea (ECS) and South Yellow …

Assessing 20th century tidal range changes in the North Sea

In many places around the world, tide gauges have been measuring substantial non-astronomical changes. Here we document an exceptional large spatial scale case of changes in tidal…

A Hybrid Model for Lake Powell Inflow Prediction

Lake Powell is a major reservoir responsible for providing water resources throughout the Colorado River Basin. Here we develop a hybrid model to perform 1-4 month forecasts of th…

First Direct Observational Evidence for Secondary Gravity Waves Generated by Mountain Waves over the Andes

A mountain wave with a significant brightness temperature amplitude and ~500 km horizontal wavelength was observedover the Southern Andes on 24–25 July 2017 in AIRS/Aqua satellite…

Seasonality in intermittent streamflow losses beneath a Semiarid Wadi

Streamflow losses beneath non-perennial streams are potentially a major contribution to recharge, though measurements are often challenging due to the transient nature of these no…

Contrasted porosity between the hanging-wall and the footwall of the active Pāpaku thrust at IODP Site U1518: insights …

Attempts to determine physical property across thrust faults at subduction zones through drilling, logging and core sampling have been limited and restricted to exhumed accretiona…

Higher Martian atmospheric temperatures at all altitudes lead to enhanced D/H fractionation and water loss

Much of the water that once flowed on the surface of Mars was lost to space long ago, and the total amount lost remains unknown. Clues to the amount lost can be found by studying …

Unprecedented spring 2020 ozone depletion in the context of 20 years of measurements at Eureka, Canada

In the winter and spring of 2019/2020, the unusually cold, strong, and stable polar vortex created favorable conditions for ozone depletion in the Arctic. Chemical ozone loss star…

Highly heterogeneous pore fluid pressure enabled rupture of orthogonal faults during the 2019 Ridgecrest Mw7.0 earthqua…

Here, we show that the 2019 Mw7.0 Ridgecrest mainshock as well as its Mw6.5 foreshock ruptured orthogonal conjugate faults. We invert the waveforms recorded by the dense strong-mo…

Historical changes in rainfall patterns over the Congo basin and impacts on runoff (1903-2010)

The Congo basin is one of the most hydrologically active and pristine locations with limited understanding of how precipitation changes impacts on stream flow dynamics and variati…

DeepQuake --- An application of CNN for seismo-acoustic event classification in The Netherlands

Recent developments of infrastructures and methods are major driving forces in the advances of solid Earth sciences. The deployment of large and dense sensor networks enables data…

Tropical Climate Influence the Cumulative Confirmed COVID-19 Cases in Indonesia

Objectives: This study aimed to find evidence on the effects of climatological parameters (temperature, rainfall, and humidity) on the cumulative cases of COVID-19 in Indonesia. M…

Dust storm-enhanced gravity wave activity in the Martian thermosphere observed by MAVEN and implications for atmospheri…

Lower atmospheric global dust storms affect the small- and large-scale weather and variability of the whole Martian atmosphere. Analysis of the CO2 density data from the Neutral G…

Antarctic elevation drives hemispheric asymmetry in polar lapse-rate climatology and feedback

The lapse-rate feedback is the dominant driver of stronger warming in the Arctic than the Antarctic in simulations with increased CO2. While Antarctic surface elevation has been i…

Strength evolution of ice plume deposit analogs of Enceladus and Europa

Enceladus and possibly Europa spew materials from their internal ocean into their exosphere, some of which are deposited back onto the surface of those Ocean Worlds. This setting …

Tropical cyclone compound flood hazard assessment: from investigating dependence to quantifying impacts

Compound flooding, characterized by the co-occurrence of multiple flood mechanisms, is a major threat to coastlines across the globe. Tropical cyclones (TCs) are responsible for m…

Probability distributions of particle hop distance and travel time over equilibrium mobile bedforms

The joint probability distribution of streamwise particle hop distance, lateral particle hop distance, and travel time constrains the relationships between topographic change and …

Episodic crustal extension and contraction characterizing the Late Mesozoic tectonics of East China: Evidence from the …

During the Late Mesozoic, East China is characterized by a widespread magmatism, thrusting and folding, extensional doming, strike-slip faulting, and block rotation. The Jiaodong …

Simulation of the record Arctic stratospheric ozone depletion in 2020

In Arctic winter and spring 2020, the stratospheric temperatures were exceptionally low for a long time period and the polar vortex was very stable. As a consequence, significant …

Preliminary Crustal GMPE for Puerto Rico after the 2020 SWPR Seismic Sequence

According to the 2020 FEMA Fact Sheet (FEMA, 2020), Puerto Rico and Virgin Islands are located in a high risk region for earthquake damage. In the last year (05-jul-2019 to 05-jul…

Emergency Action Plan for Flash Flood Due to Dambreak - Case study: Shahrchai Dam, Urmia (Iran)

Emergency Action Plan for Flash Flood Due to Dambreak - Case study: Shahrchai Dam, Urmia (Iran) Seyed M. Heidaria, Seyed Jalal Heidarib a Department of Civil Engineering, Sharif U…

A Large Scale Dye Tracing Experiment Measuring Times of Travel in the upper Yellow River, Baotou, Inner Mongolia, China

To determine the times of travel within a 170.6 km long reach in the upper Yellow River, we carried out a dye experiment in May 2017. 48.75 kg of dye was poured simultaneously at …

The Signature and Elimination of Sediment Reverberations on Submarine Receiver Functions

While the receiver function technique has been successfully applied to high-resolution imaging of sharp discontinuities within and across the lithosphere, it has been shown, howev…

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