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Showing 7551 to 7600 of 59105 works

Tectonic and climatic impacts on environmental evolution in East Asia during the Palaeogene

Palaeogene Environmental evolution in East Asia remains ambiguous. Here we present integrative work including magnetostratigraphy, grain-size, geochemistry, and clay minerals from…

Decadal and Long-term Variability of Sea Level in the Southwestern Pacific during 1948-2018

Decadal and long-term variability of sea level in the Southwestern Pacific (SWP) is investigated with tide gauge measurements near New Zealand ranging from 1948 to 2018 and a 1.5-…

Application of Vector Spherical Harmonics to the Magnetisation of Mars' Crust

Mars has a magnetic field originating in its strongly magnetised crust that holds clues to the planet’s interior. We apply vector spherical harmonic decomposition to simple candid…

Why Access to Data Matters and What We Can Do to Improve Access and Reusability

The Flint, Michigan, water crisis began in 2014 after officials switched the water supply to the Flint River, which was highly corrosive to the city’s pipes. Years later, the situ…

Common Data and Metadata Models for Geophysical Data in the Cloud

UNAVCO and IRIS, major repositories for global geodetic and seismic data, are in the process of joining their operations to form a unified facility for supporting the broad spectr…

Glaciogenic Cloud Seeding to Cool the Arctic

The high albedos and zenith angles in the Arctic cause mixed-phase clouds to warm the Arctic surface during most of the year by absorbing long wavelength (LW) terrestrial radiatio…

High-Resolution 3D shallow S-Wave velocity structure of Tongzhou, subcenter of Beijing, inferred from multi-mode Raylei…

The 3D S-wave velocity of shallow structure, especially the Quaternary sediments at 0-1 km near the surface, is an important issue of concern in urban planning and construction fo…

Top-of-atmosphere albedo bias from neglecting three-dimensional cloud radiative effects

Clouds cover on average nearly 70% of Earth’s surface and regulate the global albedo. The magnitude of the shortwave reflection by clouds depends on their location, optical proper…

Combined Effect of Mining, Subsidence and Coal Fires in Jharkhand, India Investigated using Satellite Remote Sensing an…

The coal fires that started over a century ago in Jharia Coal Fields constitute a significant threat to the coal reserves, infrastructure, and residents’ lives. The fires burn und…

TEXTURAL STUDY AND ERUPTION DYNAMICS OF THE MALALAK TEPHRA (TANDIKAT VOLCANO), WEST SUMATRA, INDONESIA

The Malalak Tephra (sourced from Tandikat volcano) is considered one of the youngest and most voluminous tephra deposits (VEI-5) in West Sumatra, Indonesia. However, several const…

Application of synthetic peptide CEP1 increases nutrient uptake rates along plant roots

The root system of a plant provides vital functions including resource uptake, storage, and anchorage in soil. The uptake of macro-nutrients like nitrogen (N), phosphorus (P), pot…

NY Stakeholders' Interaction and Feedback on a Coastal Protective Strategy Optimization

As the sea level rises, it is alarming that the threat from flooding induced by tropical cyclones would cause more severe damages to coastal regions worldwide. In order to address…

Replaying the tape of history: Synthetic large ensembles of sea-air carbon dioxide (CO2) flux

We use a statistical emulation technique to construct synthetic ensembles of global and regional sea-air carbon dioxide (CO2) flux from four observation-based products over 1985-2…

The Perturbed Rainfall Uncertainty Unit Hydrograph Method

The Unit Hydrograph (UH) theory can be used to estimate the discharge hydrograph of a basin based on precipitation and runoff measurements. However, uncertainty in those measureme…

A modular model of Jupiter's magnetospheric magnetic field based on Juno data

Accurate modeling of Jupiter’s magnetospheric magnetic field is important for not only scientific research but also mission planning. We develop a new empirical global model of Ju…

Combined experimental interpretation and numerical investigation of the impact of fluid alkalinity on basalt carbonatio…

Various recent studies have shown that basalt formations have the capacity for long-term secure CO 2 storage through carbon mineralization. Many of these studies have demonstrated…

Nature versus Nurture: Preservation and Destruction of Archean Cratons

The factors that promote stability of Archean cratons are investigated from a combined geodynamic, geological, and geophysical perspective in order to evaluate the relative import…

Natural Hazards Perspectives on Integrated, Coordinated, Open, Networked (ICON) Science

This article is composed of one integrated commentary about the state of ICON principles (Goldman et al., 2021) in natural hazards and a discussion on the opportunities and challe…

Are terrestrial biosphere models fit for simulating the global land carbon sink?

The Global Carbon Project estimates that the terrestrial biosphere has absorbed about one-third of anthropogenic CO 2 emissions during the 1959-2019 period. This sink-estimate is …

Upper-lower layer coupling of recurrent circulation patterns in the Gulf of Mexico

The study of the relationship between the upper and lower layers in the Gulf of Mexico (GoM) has experienced a lot of progress in recent years. Nevertheless, an examination of thi…

Citizen Science and Scientific Results from the World's Largest Network of Backyard Astronomers

Thanks to the Unistellar network, citizen scientists and ordinary people all over the world can now enjoy the wonders of the night sky while also making important scientific disco…

Leveraging Design Thinking to Inform Water Resource Applications and the NASA PACE Mission

The Plankton, Aerosol, Cloud, and Ocean Ecosystem (PACE) mission is NASA’s next great investment in Earth Science, continuing NASA’s legacy of over forty years of satellite ocean …

3D probabilistic geology differentiation based on airborne geophysics, mixed Lp norm joint inversion and petrophysical …

Geology differentiation converts physical property models derived from geophysical data to a 3D quasi-geology model. It represents a step change in quantitative interpretation of …

A decadal reflection of case studies encompassing the Panta Rhei paradigm

We describe a sampling of over two-dozen sociohydrology case studies that advance our understanding of two-way human-water phenomena. These case studies span broad geographic regi…

Deep Learning Versus One Neuron for the Problem of Micro-Earthquake Detection

Introduction We compare the CNN model against a simple logistic regression model to learn the benefits of simple models. For extracting features, we use the tsfresh package. We fi…

Segmentation of Overlapping Plants in Multi-plant Image Time Series

Multi-plant imaging using arrays of low-cost cameras is a successful strategy for capturing affordable high-throughput plant phenotyping data. An imaging platform of this type can…

Geostrophy assessment and momentum balance of the global oceans in a tide- and eddy-resolving model

The future wide-swath satellite altimeters, such as the upcoming Surface Water Ocean Topography (SWOT) mission, will provide instantaneous 2D measurements of sea level down to the…

Estimating canopy-level photosynthetic capacity using reflectance spectra and solar-induced fluorescence

Improving photosynthesis has been considered critical to increasing crop yield to meet food demands from a growing population. To achieve this goal, high-throughput phenotyping te…

Updated assessment suggests >1.5°C global warming could trigger multiple climate tipping points

Climate tipping points occur when change in a part of the climate system becomes self-perpetuating beyond a forcing threshold, leading to abrupt and/or irreversible impacts. Synth…

New Land Use Change Data Reveal Significantly Altered Floodplains in the Mississippi River Basin

Despite human-induced changes in floodplains over the past century, comprehensive data of long-term land use change within floodplains of large river basins are limited. Data of l…

Improved Automated Building Extraction from High Resolution Remote Sensing Imagery using Time-optimized Deep Learning T…

Deep learning techniques are being increasingly used in earth science applications - from climate change modelling to feature extraction from remote sensing imagery, given their a…

Investigating Mesopelagic Organism Occurrence Along the Southeastern United States

More than half of Earth is covered by ocean, yet little is known about the deep sea (> 200 meters), particularly the water column. From 200 to 1,000 meters below the ocean surface…

An Investigation of the Populations Impacted by California Wildfire Evacuation Orders

The frequency, size, and intensity of wildfires in California have increased substantially in recent years, leading to widespread mandatory evacuations affecting millions of resid…

The role and timescale of the moisture-entrainment-convection feedback in Spontaneous TC genesis

Tropical cyclones (TCs) are one of the most fascinating examples of organized convection. In idealized simulations of rotating radiative-convective equilibrium (RRCE), TCs can sel…

Trail Ridge: A critical hydrologic interface protecting the Okefenokee Swamp

Trail Ridge is a one mile-wide and 100-mile-long topographic ridge that separates the Okefenokee Basin and Swamp from the coastal plain of Georgia. It represents the crest of a fo…

Helheim Glacier's terminus position controls its seasonal and inter-annual ice flow variability

At least half of today’s mass loss of the Greenland ice sheet is due to the retreat of tidewater glaciers. For example, over the past decade Helheim Glacier in southeast Greenland…

An Improved Perturbation Pressure Closure for Eddy-Diffusivity Mass-Flux Schemes

Convection parameterizations such as eddy-diffusivity mass-flux (EDMF) schemes require a consistent closure formulation for the perturbation pressure, which arises in the equation…

Seismic detection of euroquakes originating from Europa's silicate interior

Detecting a seismic event from Europa’s silicate interior would provide information about the geologic and tectonic setting of the moon’s rocky interior. Reflections off a metalli…

A statistical analysis of the pros and cons of field kits to guide well-switching in arsenic prone regions

Field kits for testing the level of a toxicant in the environment are inherently less accurate than a laboratory instrument. Using a specific example, we argue here that kit measu…

Calcium Carbonate Tubular Structures from Soda Lake Water: Growth Process, Characterization, and Implications to Prebio…

Chemical gardens are self-assembled tubular structures formed via abiotic precipitation upon the interaction of metal-ion salts with aqueous solutions of anionic species such as s…

Inverse Analysis of Experimental Scale Turbidity Currents Using Deep Learning Neural Networks

Despite the importance of turbidity currents in environmental and resource geology, their flow conditions and mechanisms are not well understood. This study proposes a novel metho…

New ocean subsurface optical properties from space lidars: CALIOP/CALIPSO and ATLAS/ICESat-2

Remote sensing from Earth-observing satellites is now providing valuable information about the ocean phytoplankton distributions. This paper presents the new ocean subsurface opti…

CC-FJpy: A Python Package for seismic ambient noise cross-correlation and the frequency-Bessel transform method

In the past two decades, surface wave imaging based on seismic ambient noise cross-correlation (CC) has been one of the most important technologies in the field of seismology. Wit…

70 years of high-resolution glacier surface elevation records derived from historical aerial photography across Western…

We present interannual to decadal glacier and geomorphic change measurements at multiple sites across Western North America from the 1950s until present. Glacierized study sites d…

Changes in mountain valley widening, river incision and sediment transport in North-West Africa during the last 180 ka …

The effects of climate on eroding landscapes and the delivery of sediment from these remain poorly understood. The sampling and dating of river terraces provide one way to address…

Analysis of the vegetation structure in the savanna - tropical forest transition of northern South America using The Gl…

The savanna - forest transition in the tropics has a large and complex variation in vegetation structure both vertically and horizontally. 3D-imaging technologies provide detailed…

ENTICE Satellite Orbital Simulator to Study Ice Clouds

Clouds play a significant role in the Earth’s energy balance and hydrological cycle through their effects on radiation and precipitation, and therefore are crucial for life on Ear…

Ionospheric plasma fluctuations induced by the NWC very low frequency signal transmitter

The Australian NWC (North West Cape) signal transmitter is known to strongly interfere with the topside ionosphere. We analyze 456 conjunctions between Swarm A, B and NWC, in addi…

A generalizable box model for kinetic clumped isotope effects in the CaCO3 -DIC-H2O system

Most Earth surface carbonates precipitate out of isotopic equilibrium with their host solution, complicating the use of stable isotopes in paleoenvironment reconstructions. Disequ…

Development and validation of an optimized marker set for genomic selection in Southern U. S. rice breeding programs

The potential of genomic selection (GS) to increase the efficiency of breeding programs has been clearly demonstrated; however, the implementation of GS in rice (Oryza sativa L.) …

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