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Showing 2851 to 2900 of 11136 works
Regional inversion shows promise in capturing extreme-event-driven CO2 flux anomalies but is limited by atmospheric CO2…
Extreme climate events are becoming more frequent, with poorly understood implications for carbon sequestration by terrestrial ecosystems. A better understanding will critically d…
Update on the Temperature Corrections of Global Air-Sea CO2 Flux Estimates
The oceans are a major carbon sink. Sea surface temperature (SST) is a crucial variable in the calculation of the air-sea carbon dioxide (CO2;) flux from surface observations. Any…
Predictable variations of the carbon sinks and atmospheric CO2 growth in a multi-model framework
Inter-annual to decadal variability in the strength of the land and ocean carbon sinks impede accurate predictions of year-to-year atmospheric carbon dioxide (CO2) growth rate. Su…
What is Mineral Informatics?
Minerals are information-rich materials that offer researchers a glimpse into the evolution of planetary bodies. Thus it is important to extract, analyze, and interpret this abund…
Effects of ambient fluids on particle size segregation in saturated debris flows
Size segregation, which is a robust feature of sheared granular mixtures and geophysical mass flow deposits, is found to diminish in the presence of a viscous fluid. We study this…
Balancing Earth's Deep Carbon Cycle
The deep carbon cycle of the Earth remains poorly understood in spite of its importance to the evolution of our planet. Here we consider estimated carbon fluxes for plume-related …
DJ4Earth: Differentiable, and Performance-portable Earth System Modeling via Program Transformations
Differentiable Earth system models (ESMs) enable powerful applications such as sensitivity analysis, gradient-based calibration, state estimation, boundary flux inversions, uncert…
MMS Observations of a Compressed, Strongly Driven Magnetopause during the 2024 Mother's Day Storm
From 10-12 May 2024, a series of coronal mass ejections led to one of the strongest geomagnetic storms of the century, referred to as the Mother’s Day or Gannon Storm. MMS’s posit…
The Effects of a Stably Stratified Region with radially varying Electrical Conductivity on the Formation of Zonal Winds…
The outer areas of Jupiter and Saturn have multiple zonal winds, reaching the high latitudes, that penetrate deep into the planets' interiors, as suggested by gravity measurements…
Simulation of Heavy Metals Migration in Groundwater from a Non-Engineered Landfill to an Ecosensitive Wetland
Non-engineered landfills or open dumpsites are the most common solid waste disposal facilities in developing countries. The absence of proper liner systems in these non-engineered…
Western Barents Sea Circulation and Hydrography, past and present
The Barents Sea is one of the main pathways for warm and saline Atlantic Water (AW) entering the Arctic Ocean. It is an important region for water mass transformation and dense-wa…
Effects of Pixel Resolution, Mapping Window Size, and Spectral Species Classification on Remote Sensing of Plant Beta D…
Using imaging spectroscopy (hyperspectral imaging), we sought to assess the effects of image pixel resolution, size of mapping windows composed of pixels, and number of spectral s…
A generalized Townsend's theory for Paschen curves in planar, cylindrical, and spherical geometries in planetary atmosp…
In this work, we focus on plasma discharges produced between two electrodes with a high potential difference, resulting in the ionization of the neutral particles supporting a cur…
Computing Rates and Distributions of Rock Recovery in Subduction Zones
Bodies of rock that are detached (recovered) from subducting oceanic plates, and exhumed to Earth’s surface, become invaluable records of the mechanical and chemical processing of…
Computing time dilation between inertial frames
The concepts underlying the Lorentz transform for time dilation and length contraction are presented. The notion of a rest frame is introduced and its usefulness discussed. The…
A Comparison of Spectral Bin Microphysics versus Bulk Parameterization in Forecasting Typhoon In-Fa (2021) before, duri…
Typhoon In-Fa hit continental China in July 2021 and caused an unprecedented rainfall amount, making it a typical case to examine the ability of numerical models in forecasting la…
The spatial heterogeneity of cloud phase observed by satellite
We conduct a global assessment of the spatial heterogeneity of cloud phase within the temperature range where liquid and ice can coexist. Single-shot CALIOP lidar retrievals are u…
Traveltime calculations for qP, qSV, and qSH waves in 3D tilted transversely isotropic media using fast sweeping method…
Efficient and accurate traveltime calculations of seismic waves have important applications in tomography, prestack migration, earthquake location, etc. Anisotropy significantly a…
Enhanced net CO2 exchange of a semi-deciduous forest in the southern Amazon due to diffuse radiation from biomass burni…
Atmospheric processes and climate are closely linked to the carbon cycle in the Amazon region as a consequence of the strong biosphere-atmosphere coupling. The radiative effects o…
Mesoscale eddies enhance the air-sea CO 2 sink in the South Atlantic Ocean
Mesoscale eddies are abundant in the global oceans and known to affect marine biogeochemistry. Understanding their cumulative impact on the air-sea carbon dioxide (CO2) flux is l…
Spatial and Temporal Variation of Mars South Polar Ice Composition from Spectral Endmember Classification of CRISM Mapp…
Multispectral mapping data from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) provide a unique opportunity to characterize south polar ice deposits at higher …
Uncertainty in projected critical soil moisture values in CMIP6 affects the interpretation of a more moisture-limited w…
Evaporation is controlled by soil moisture (SM) availability when conditions are not extremely wet. In such a moisture-limited regime, land-atmosphere coupling is active, and a ch…
The Impacts of Assimilating Fengyun-4A Atmospheric Motion Vectors on Typhoon Forecasts
Atmospheric motion vectors (AMVs), known as cloud track winds, have positive impacts on global numerical weather forecasts (NWP). In this study, AMVs retrieved from Fengyun-2G and…
(Synthetic) Data-driven identification of governing equations of aseismicseismic fault slip and frictional heterogeneit…
Models of fault slip development generally consider interfacial strength to be frictional and deformation of the bounding medium to be elastic. The frictional strength is usually …
Toward Optimal Rainfall for Flood Prediction in Headwater Basins - Orographic QPE error modeling using machine learning
Quantitative Precipitation Estimates (QPE) from merged rain gauge and radar measurements have become widely available in the last two decades. The errors associated with these pro…
Simulating the role of biogeochemical hotspots in driving nitrogen export from dryland watersheds
Climate change and nitrogen (N) pollution are altering biogeochemical and ecohydrological processes in dryland watersheds, increasing N export, and threatening water quality. Whil…
Stronger carbon uptake by the ocean in eddy-resolving simulations of global warming
Today, the ocean absorbs ~25% of the human-induced carbon emissions. Earth System Models (ESMs) indicate that the absorption increases by 0.79±0.07PgC per ppm of atmospheric CO2 i…
Assessment of the global coherence of different types of droughts in model simulations under a high anthropogenic emiss…
This study provides a global analysis of drought metrics obtained from several climatic, hydrologic and ecological variables in a climate change framework using CMIP6 model data. …
Nutrient Dynamics in a Coupled Terrestrial Biosphere and Land Model (ELM-FATES)
We present a representation of nitrogen and phosphorus cycling in the vegetation demography model the Functionally Assembled Terrestrial Ecosystem Simulator (FATES), within the En…
Full-waveform tomography of the African Plate
We present a seismic model of the African Plate, made with the technique of full-waveform inversion. The purpose of our model is to become a foundation for future use and research…
Volcanic Eruption Forecasting Using Shannon Entropy: Multiple Cases of Study
The search for pre-eruptive observables that can be used for short-term volcanic early warning remains a scientific challenge. Pre-eruptive patterns in seismic data are usually id…
Asymmetry in the Indian Summer Monsoon Rainfall response to two types of La Niña evolution
This study attempts to understand the asymmetry in the Indian Summer Monsoon Rainfall (ISMR) response to two types of La Niña whether they evolved from El Niño or La Niña in the p…
Technical Report - Methods: Automated Discovery of Functional Relationships in Earth Systems Data
Functional relationships capture how variables co-vary across specific spatial or temporal domains. However, these relationships often take complex forms beyond linear, and they m…
The influence of climate feedbacks on regional hydrological changes under global warming
The influence of climate feedbacks on regional hydrological changes under warming is poorly understood. Here, a moist energy balance model (MEBM) with a Hadley Cell parameterizati…
Midlatitude Oceanic Fronts Strengthen the Moisture Transport from Anticyclones to Cyclones
The Kuroshio-Oyashio Extension and Gulf Stream oceanic frontal zones with sharp sea-surface temperature gradients are characterized by enhanced activity of synoptic-scale cyclones…
Quantifying supraglacial debris-related melt-altering effects on the Djankuat Glacier, Russian Federation, Part 2: Usin…
We used a spatially distributed and physically based energy and mass balance model to derive the Østrem curve, that is the supraglacial debris-related relative melt alteration ver…
An Assessment of Antarctic Sea-ice Thickness in CMIP6 Simulations with Comparison to the Observations
This study assesses less-explored Southern Ocean sea-ice parameters, namely Sea-ice Thickness and Volume, through a comprehensive comparison of 26 CMIP6 models with reanalyses and…
Developing a physics-informed variational autoencoder (VAE) approach to construct a reduced-order model of the lee vort…
This study develops a physics-informed neural network (PINN) model to efficiently generate high-fidelity local circulation patterns in Taiwan while preserving an accurate represen…
Surface runoff impact on ice dynamics varies with altitude and location
Surface runoff over the Greenland Ice Sheet has been shown to have an impact on ice velocities, both at short as well as decadal timescales. While the short timescales are necessa…
Pinpointing the mechanism of magnetic enhancement in modern soils using high-resolution magnetic field imaging
In well-buffered modern soils, higher annual rainfall is associated with enhanced soil ferrimagnetic mineral content, especially of ultrafine particles that result in distinctive …
Substantial cold bias during wintertime cold extremes in the southern Cascadia region in historical CMIP6 simulations
Global climate models often simulate atmospheric conditions incorrectly due to their coarse grid resolution, flaws in their dynamics, and biases resulting from parameterization sc…
Vibroseis acquisition with fully controllable sweep signals based on borehole VSP data analysis
This paper presents a method that allows designing a seismic signal with any signature with particular frequency and phase characteristics and then emits it into the geological …
The stochastic nature of the transport of coarse material in rain-impacted flows
Traditionally, so-called physically based models of erosion by rain-impacted flow focus on the conservation of mass. Raindrop induced saltation and rolling produce random intermit…
Unsupervised Clustering and Supervised Machine Learning for Lightning Classification: Application to Identifying EIPs f…
We developed a framework merging unsupervised and supervised machine learning to classify lightning radio signals, and applied it to the possible detection of terrestrial gamma-ra…
Method for Effective Mosquito Data Classification to Identify Potential Hosts of Malaria with AI Implications
Most of Earth’s mosquito-borne illnesses are transmitted by mosquitoes in one of three genera: Anopheles, Aedes, and Culex. Mosquitos of such genera are located in all continents …
A Survey of Thunderstorms that Produce Megaflashes across the Americas
We previously observed that long-horizontal lightning flashes exceeding 100 km in length, known as “megaflashes,” occur preferentially in certain thunderstorms. In this study, we …
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