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Showing 1301 to 1350 of 59105 works
Emerging permafrost carbon dynamics: Identifying critical gaps and future needs
The Arctic is warming four times faster than the global average, resulting in widespread ground thaw and state changes. Due to the rapid rate and large scale of ecosystem shifts, …
Observed APO Seasonal Cycles in the Pacific: Estimation of Autumn O2 Oceanic Emissions
In this work, we investigated the seasonal cycle of atmospheric potential oxygen (APO), a unique tracer of air-sea gas exchanges of molecular oxygen (O2) and carbon dioxide (CO2),…
Climate-dependency of Impact of Increased Carbon Dioxide on African Monsoon Rainfall: Insights from model simulations
Previous studies on future scenarios identified two key effects of increasing CO2 on the African summer monsoon (ASM): Rising CO2 leads to an enhancement in moisture supply, favor…
Convergent and transdisciplinary integration: On the future of integrated modeling of human-water systems
The notion of convergent and transdisciplinary integration, which is about braiding together different knowledge systems, is becoming the mantra of numerous initiatives aimed at t…
Disk images of neutral temperature from the Global-scale Observations of the Limb and Disk (GOLD) mission
Observations of far-ultraviolet (FUV) dayglow by the Global-scale Observations of Limb and Disk (GOLD) mission provide an opportunity for quantifying the global-scale response of …
GOLD Observations of Thermospheric Neutral Temperature Variability during the October 14, 2023 Annular Solar Eclipse.
The October 14, 2023 annular solar eclipse was visible from the US Pacific coast to Brazil’s east coast. NASA’s Global-scale Observations of Limb and Disk (GOLD) mission observed …
Likely Ferromagnetic Minerals Identified by the Perseverance Rover and Implications for Future Paleomagnetic Analyses o…
Although Mars today does not have a core dynamo, magnetizations in the Martian crust and meteorites suggest a magnetic field was present prior to 3.7 billion years (Ga) ago. Howev…
Projected Global Temperature Changes after Net Zero are Small but Significant
As more countries make net zero greenhouse gas emissions pledges, it is crucial to understand the effects on global climate after achieving net zero emissions. The climate has bee…
Water vapor spectroscopy and thermodynamics constrain Earth's tropopause temperature
As Earth warms, the tropopause is expected to rise, but predictions of its temperature change are less certain. One theory ties tropopause temperature to outgoing longwave radiati…
A Coral Diagenesis and Physiology Framework for Improving Coral δ18O Paleoclimate Reconstructions
Reef-building corals provide seasonally resolved records of past climate variability from the ocean via variations in their oxygen isotope composition (δ18O). However, a variety o…
Modeling the 3D dynamic rupture of microearthquakes induced by fluid injection
Understanding the dynamics of microearthquakes is a timely challenge with the potential to address current paradoxes in earthquake mechanics, and to better understand earthquake r…
Emerging impacts of enhanced Greenland melting on Labrador Sea dynamics
Freshwater input from Greenland ice sheet melt has been increasing in the past decades from warming temperatures. To identify the impacts from enhanced meltwater input into the su…
A Study of Velocity-Celerity Relationships during Leakage from Soil Columns under Natural Rainfall Events
Understanding celerity, velocity, and their connections is crucial for unraveling subsurface hydrology and improving numerical models. This observational study investigated leakag…
A statistical examination of ion dynamics at 1-Hz whistler waves in the Earth's foreshock
The 1-Hz whistler wave precursor attached to shock-like structures are often observed in foreshock. Using observations from the Magnetospheric Multiscale mission, we investigate t…
The Sofu Seamount Present in the Source Area of the October 2023 Earthquake and Tsunami in Japan
On October 8, 2023 (UTC), unique earthquakes occurred in the Izu-Ogasawara Arc, Japan, in which the P- and S-phases were barely visible and only the T-phase was evident, followed …
Tracing groundwater-surface water interactions in a volcanic maar lake using stable isotopes and radon-222
Groundwater-surface water interactions are important in controlling lake water residence time, biogeochemistry, and water availability for downstream communities in tropical volca…
Near-real-time Identification of the Source of Ionospheric Disturbances
The ionosphere is characterised by a large number of disturbances generated in response to a wide range of phenomena, including natural hazards, space weather and man-made events.…
Prospects for Underground Hydrogen Storage in Saline Reservoirs: A Case Study of Sacramento Basin
The objective of this work was to understand the suitability and favorability of saline reservoirs for storing hydrogen and ensuring the maximum amount of hydrogen would be withdr…
Controls on upper ocean salinity variability in the eastern subpolar North Atlantic during 1992-2017
The eastern subpolar North Atlantic upper ocean salinity undergoes decadal fluctuations. A large fresh anomaly event occurred during 2012--2016. Using the ECCO state estimate, we …
Sheltering of sea ice ridges in the ice-ocean drag force: implications from laboratory experiments
The increasing movement and deformation of Arctic sea ice cover results in pronounced drag sheltering effects behind sea ice pressure ridges. This needs to be accounted for in the…
A simple and robust CryoSat-2 radar freeboard correction method dedicated to TFMRA50 for the Arctic winter snow depth a…
When deriving the sea ice thickness using a satellite radar altimeter, a correction is needed to convert the radar freeboard to the ice freeboard. Here, a robust correction method…
Stability of the Arctic Winter Atmospheric Boundary Layer over Sea Ice in CMIP6 Models
The Arctic winter-time atmospheric boundary layer often features strong and persistent low-level stability which arises from longwave radiative cooling of the surface during the p…
Land Reclamation Controls on Multi-Centennial Estuarine Evolution
Land reclamations influence the morphodynamic evolution of estuaries and tidal basins, because altered planform changes tidal dynamics and associated residual sediment transport. …
High-Dimensional Covariance Estimation From a Small Number of Samples
We synthesize knowledge from numerical weather prediction, inverse theory and statistics to address the problem of estimating a high-dimensional covariance matrix from a small num…
Precipitation over a wide range of climates simulated with comprehensive GCMs
Idealized general circulation models (GCMs) suggest global-mean precipitation ceases to increase with warming in hot climates. However, it is unclear if this occurs in more compre…
Beyond the Horizon: A Critical Analysis of AI-based Weather Forecasting Models
This paper takes a comprehensive look at Artificial Intelligence (AI)-based weather forecasting models and focuses on the current status, challenges, and directions for further de…
Utilizing Heat of Wetting to Estimate Physical Properties of Tuff
During characterization efforts of complex sites and geologies, it is important to estimate material properties efficiently and robustly. We present data and modeling related to…
A Link Between U.S. East Coast Sea Level and North Atlantic Subtropical Ocean Heat Content
Using a recently developed 1/12th degree regional ocean model, we establish a link between U.S. East Coast sea level variability and offshore upper-ocean heat content change. This…
Simultaneous Observation of Equatorial Plasma Bubbles and Traveling Ionospheric Disturbances over Indonesia Following t…
We report our analysis of multi-diagnostic ionospheric observations over Indonesia following the 15 January 2022 Tonga volcano eruption. Observation data from the Indonesian GNSS …
Response to Request for Information Regarding File Specification for Findable, Accessible, Interoperable, and Reusable …
NIST is an important leader in the US for setting standards that inform best practices for scientific research and innovation. AGU's response to the RFI is based on our experience…
Micromagnetic determination of the FORC response of paleomagnetically significant magnetite assemblages
Micromagnetic modelling allows the systematic study of the effects of particle size and shape on the first-order reversal curve (FORC) magnetic hysteresis response for magnetite p…
Impact of dust and temperature on primary productivity in Late Miocene oceans
Most of the primary productivity in the ocean comes from phytoplankton, and is impacted, among other things, by the amount of nutrients available, as well as by temperature. The L…
Assessment of Forced Evaporation as a Solution for Onsite Produced Water Management
As a net water production entity where unconventional oil and gas extraction operations generate volumes of hypersaline water (known as produced water, PW) greater than they consu…
Spatial and Temporal Heterogeneity of Martian Tropical Water Ice Through Analysis of Radial and Layered Ejecta Craters
Martian layered ejecta craters are theorized to form by tapping into water ice. The inference that some equatorial layered ejecta craters are Amazonian indicates ice has persisted…
Detecting, attributing, and projecting global marine ecosystem and fisheries change: FishMIP 2.0
There is an urgent need for models that can robustly detect past and project future ecosystem changes and risks to the services that they provide to people. The Fisheries and Mari…
Probabilistic Post-processing of Temperature Forecasts for Heatwave Predictions in India
Reliable air temperature forecasts are necessary for mitigating the effects of droughts and Heatwaves. The numerical weather prediction(NWP) model forecasts have significant biase…
Physics-Informed Neural Networks for Estimating a Continuous Form of the Soil Water Retention Curve from Basic Soil Pro…
The soil water retention curve (SWRC) is essential for describing water and energy exchange processes at the interface between the solid earth and the atmosphere. Despite its impo…
Reducing Flood Insurance Costs by Employing Geographic Risk Complementarity
Flood insurance is an important financial measure for flood risk management. However, a significant protection gap in flood insurance exists in many countries due to high flood in…
Global estimates of particulate organic carbon from the surface ocean to the base of the mesopelagic
The gravitational settling of organic particles from the surface to the deep ocean is an important export pathway and one of the largest components of the marine biological carbon…
A skill assessment framework for the Fisheries and Marine Ecosystem Model Intercomparison Project
Understanding climate change impacts on global marine ecosystems and fisheries requires complex marine ecosystem models, forced by global climate projections, that can robustly de…
Explaining pan-Atlantic cold and windy extremes using an analog-based approach
The occurrence of cold spells over different regions of North America has been linked to windy extremes over western Europe. These events – termed pan-Atlantic extremes – are medi…
Influence of Meltwater from Labrador Sea ice and icebergs transported via Flemish Cap on the long-term North Atlantic C…
The long-term North Atlantic Cold Anomaly (Cold Blob) was largely the consequence of three major episodes of low sea surface temperature (SST) in the subpolar North Atlantic in 19…
Explainable Spatially Distributed Hydrologic Modeling of a Snow Dominated Mountainous Karst Watershed Using Attention
In many regions globally, snowmelt-recharged mountainous karst aquifers serve as crucial sources for municipal and agricultural water supplies. In these watersheds, complex interp…
Cold Diffusion Model for Seismic Denoising
Seismic waves contain information about the earthquake source, the geologic structure they traverse, and many forms of noise. Separating the noise from the earthquake is a difficu…
Quantifying Dynamic Linkages Between Precipitation, Groundwater Recharge, and Runoff using Ensemble Rainfall-Runoff Ana…
Understanding streamflow generation at the catchment scale requires quantifying how different components of the system are linked, and how they respond to meteorological forcing. …
Substorm Identification With The WINDMI Magnetosphere - Ionosphere Nonlinear Physics Model
We investigate the applicability and performance of the plasma physics based WINDMI model to the analysis and identification of substorm onsets. There are several substorm onset c…
Roles of Gravity Waves in Preconditioning of a Stratospheric Sudden Warming
As well as strong upward propagation of planetary waves from the troposphere, the state of the stratospheric mean flow has been recognized as a key factor for the occurrence of …
Refined understanding of hydrological connectivity among lakes on the Qiangtang Plateau
Accurate catchment delineation and lake connectivity assessment are crucial for understanding hydrology and managing water resources. By employing the Forest And Buildings removed…
Disentangling the roles of internal atmospheric variability and ENSO on California precipitation to explain recent seas…
Water years (WY) 2017 and 2023 were anomalously wet for California, each helping to terminate multiyear droughts. In both cases, this was unexpected given La Niña conditions, with…
Multiple-band electric field responding to the geomagnetic storm on 4 November 2021
In this paper, based on the electric field data (EFD) of the China Seismo-Electromagnetic Satellite (CSES), which is divided into 4 frequency bands (ULF, ELF, VLF, HF) from DC to …
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