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Showing 4301 to 4350 of 59105 works
Use of an artificial neural network model for estimation of unfrozen water content in frozen soils
A portion of pore water is typically in a state of unfrozen condition in frozen soils due to the complex soil-water interactions. The variation of the amount of unfrozen water and…
Downward Trend in Methane Detected in a Northern Colorado Oil and Gas Production Region Using AIRS Satellite Data
The oil and gas (O&G) sector is estimated to be the largest contributor to anthropogenic methane (CH4) emissions in Colorado. Since 2004, the State of Colorado has implemented mul…
MCADAM: A continuous paleomagnetic dipole moment model for at least 3.7 billion years
Understanding the evolution of Earth’s magnetic field can provide insights into core processes and can constrain plate tectonics and atmospheric shielding. The absolute paleointen…
The Pairwise Similarity Partitioning algorithm: a method for unsupervised partitioning of geoscientific and other datas…
A simple yet flexible and robust algorithm is described for fully partitioning an arbitrary dataset into compact, non-overlapping groups or classes, sorted by size, based entirely…
Reappraising the production and transfer of hydrogen atoms from the middle to the upper atmosphere of Mars at times of …
Water escape on Mars has recently undergone a paradigm shift with the discovery of unexpected seasonal variations in the population of hydrogen atoms in the exosphere where therma…
Implicit learning of convective organization explains precipitation stochasticity
Accurate prediction of precipitation intensity is of crucial importance for both human and natural systems, especially in a warming climate more prone to extreme precipitation. Ye…
Untangling the Mistral and Seasonal Atmospheric Forcing Driving Deep Convection in the Gulf of Lion: 1993-2013
Deep convection occurs periodically in the Gulf of Lion, driven by the seasonal atmospheric change and Mistral winds. To determine the variability and drivers of the seasonal and …
The Earth's rotational modes revisited
In the conventional treatment of the Earth’s rotational dynamics using the Earth’s angular momentum description (AMD) it is customary to assume that the velocity/displacement of a…
Coastal forecast through coupling of Deep Learning and hydro-morphodynamical modelling
As climate-driven risks for the world’s coastlines increase, understanding and predicting morphological changes as well as developing efficient systems for coastal forecast has be…
Monolith Soil Core Sampling to Develop Nitrate Testing Protocol for Manure Injection
Injecting manure and commercial fertilizer beneath the soil surface is an important nutrient management practice that conserves ammonia-nitrogen (N) but creates distinct bands of …
Observational evidence for the non-suppression effect of atmospheric chemical modification on the ice nucleation activi…
Mineral dust alters cloud microphysical properties by acting as ice-nucleating particles (INPs). The effects of anthropogenic pollution aging on the ice nucleation activity (INA) …
Quantification of Volcano Deformation caused by Volatile Accumulation and Release
Crustal-stored magma reservoirs contain exsolved volatiles which accumulate in the reservoir roof, exerting a buoyancy force on the crust. This produces surface uplift and sudden …
Adaptation strategies strongly reduce the future impacts of climate change on crop yields
Simulations of crop yield due to climate change vary widely between models, locations, species, management strategies, and Representative Concentration Pathways (RCPs). To underst…
COVER CROPS AND NITROGEN RATES IMPACT ON SOIL CHEMICAL AND BIOLOGICAL PROPERTIES IN LOUISIANA NO-TILL CORN PRODUCTION
Use of cover cropping systems to improve soil health is still limited in Louisiana. This study aimed to examine the interaction between cover crops and nitrogen (N) fertilizers ra…
Modeling Sequences of Earthquakes and Aseismic Slip (SEAS) in Elasto-plastic Fault Zones with A Hybrid Finite Element S…
We present a coupled finite element spectral boundary integral framework for modeling sequences of earthquakes and aseismic slip on a 2-D planar rate-and-state fault with off-faul…
The January 2021 Zonal Atmospheric River in central Chile: a non-fatal disaster
Although scarcely described, intense summer precipitation events in central Chile aren’t an unknown phenomenon, their recurrence is estimated at 40 years. In the last 5 years, 2 h…
Climatology of High-frequency Gravity Waves Observed by an Airglow Imager at Andes Lidar Observatory
The long-term climatology of high-frequency quasi-monochromatic gravity waves is presented using multi-year airglow images observed at Andes Lidar Observatory (ALO, 30.3ºS, 70.7ºW…
Genome-wide identification, evolution, and expression characterization of the pepper MADS-box gene family
MADS domain transcription factors play roles throughout the whole lifecycle of plants from seeding to flowering and fruit-bearing. However, systematic research into MADS-box genes…
On the role of ULF waves in the spatial and temporal periodicity of energetic electron precipitation
Energetic electron precipitation to the Earth’s atmosphere is a key process controlling radiation belt dynamics and magnetosphere-ionosphere coupling. One of the main drivers of p…
An efficient Bayesian approach to learning droplet collision kernels: Proof of concept using “Cloudy”, a new n-moment b…
The small-scale microphysical processes governing the formation of precipitation particles cannot be resolved explicitly by cloud resolving and climate models. Instead, they are r…
Design flood hydrographs: a regional analysis based on flood reduction functions
Flood hazard mapping and the design of many water infrastructures are commonly based on the use of a single hydrologic variable, the design instantaneous peak flow. However, the e…
DMSP Poynting Flux: Data Processing and Inter-spacecraft Comparisons
Poynting flux calculated from LEO spacecraft in-situ ion drift and magnetic field measurements is an important measure of energy exchange between the magnetosphere and ionosphere.…
An Efficient Tsunami Arrival Time Estimator Coupled to Acoustic Gravity Wave Multi-Fault Rupture solution
The Dijkstra’s algorithm is employed to find the shortest paths between the epicenter and all the wet nodes on a global triangular unstructured mesh using the phase speed of surfa…
Magnetospheric dynamics under northward IMF conditions surveyed by concurrent observations of TPA and aurora spirals (O…
Nightside magnetospheric processes (dynamics) directly reflect to auroral morphology and type. By investing type of auroras and the auroral morphological changes, we can expect to…
Planetary Aeolian Landforms: An Introduction to the Fifth Planetary Dunes Workshop Special Issue
Aeolian landforms are widespread in our solar system. Understanding the exact nature and process of formation of these features are challenging tasks implying a strong collaborati…
Roles of Drop Size Distribution and Turbulence in Autoconversion Based on Lagrangian Cloud Model Simulations
The roles of the drop size distribution (DSD) and turbulence in the autoconversion rate A are investigated by analyzing Lagrangian cloud model (LCM) data for shallow cumulus cloud…
Optimal Terrain Correction Software for Window Remove-Restore Technique with a Case Study for Africa
The window remove-restore technique, suggested by Abd-Elmotaal and Kühtreiber (2003) to get rid of the double consideration of the topographic-isostatic masses within the data win…
Virtual height characteristics of ionospheric and ground scatter observed by mid-latitude SuperDARN HF radars
Propagation of high-frequency (HF) radio signals is strongly dependent on the ionospheric electron density structure along a communications link. The ground-based, HF space weathe…
Ice shelf basal melt sensitivity to tide-induced mixing based on the theory of subglacial plumes
Tidal currents are known to influence basal melting of Antarctic ice shelves through two types of mechanisms: local processes taking place within the boundary current adjacent to …
An energetic evaluation of the response of the Walker circulation to warming
The response of the Pacific Walker circulation (WC) to warming in both observations and simulations is uncertain. We diagnose contributions to the WC response in comprehensive and…
Expressive riverine fluxes over Amazon floodplain units revealed by high resolution 2D modelling
Water fluxes in the Amazon River floodplain affect hydrodynamic and ecological processes from local to global scales. Nevertheless, these fluxes remain poorly understood due to di…
A Large Simulation Set of Geomagnetic Storms -- Can Simulations Predict Ground Magnetometer Station Observations of Mag…
We use the Space Weather Modeling Framework (SWMF) Geospace configuration to simulate a total of 122 storms from the period 2010-2019. With the focus on the storm main phase, each…
Muon Imaging of Volcanic Conduit Explains Link between Eruption Frequency and Ground Deformation
An inverse correlation was observed between eruption frequency and ground surface deformation of Sakurajima volcano (Japan) during November 2018 to April 2021. Over the same perio…
Modulation of Bubble-Mediated CO2 Gas Transfer due to Wave-Current Interactions
Wave breaking modulates air-sea fluxes of energy, momentum, heat, and gases. Building on recent advances in the modeling of CO2 gas exchange and wave breaking, we investigate the …
Tectonics of Eastern Anatolian Plateau; Final Stages of Collisional Orogeny in Anatolia
The East Anatolian High Plateau, part of the Alpine-Himalayan orogen, is a 200 km wide, approximately E-W trending belt surrounded by two peripheral mountains of the Anatolian Pen…
TECTONICS OF THE SOUTHEAST ANATOLIAN OROGENIC BELT
The tectonic development of the Southeast Anatolian Orogenic Belt (SAOB) is closely related to the demise of the NeoTethys Ocean, which was located between the Arabian and Eurasia…
Description and Evaluation of the JULES-ES setup for ISIMIP2b
Global studies of climate change impacts that use future climate model projections also require projections of land surface changes. Simulated land surface performance in Earth Sy…
Detecting volcano-related underground mass changes with a quantum gravimeter
We present the world’s first time series acquired in the summit area of an active volcano with an absolute atom interferometry gravimeter. The device was installed ~2.5 km from th…
Explicit IMF By-dependence of energetic protons and the ring current
The most important parameter driving the solar wind-magnetosphere interaction is the southward (Bz) component of the interplanetary magnetic field (IMF). While the dawn-dusk (By) …
The African monsoon during the early Eocene from the DeepMIP simulations
The early Eocene (~56-48 million years ago) is characterised by high CO 2 estimates (1200-2500 ppmv) and elevated global temperatures (~10 to 16°C higher than modern). However, th…
Evaluating the impact of inter-basin water transfer on Delaware Estuary salinity with the Energy Exascale Earth System …
The Delaware River is a major freshwater supplier of New York City (NYC). Nearly half of NYC drinking water is supplied by inter-basin transfer of surface water stored in reservoi…
Atmospheric monitoring with GNSS IoT data fusion based on machine learning
Recent improvements in GNSS capabilities of various Internet-of-Things (IoT) devices, including smartphones, have allowed for better PNT performance, as well as for new potential …
Predictions for the Interstellar Dust that Interstellar Probe Could Detect
The proposed Interstellar Probe mission (ISP) will have unprecedented capabilities to detect and characterize interstellar dust flowing into the heliosphere from the surrounding i…
Process-level Assessment of the Iris Effect over Tropical Oceans
The iris hypothesis suggests a cloud feedback mechanism that a reduction in the tropical anvil cloud fraction (CF) in a warmer climate may act to mitigate the warming by enhanced …
Development of a World-Wide Database of Atoll Morphometrics
Small Island Nations are at considerable risk of climate change impacts from sea-level rise to coral acidification to increasing cyclone intensity; understanding how they will cha…
Adaptable Swarm Sensing in Coastal Waters: Design and Performance of the µFloat System
Buoyancy-controlled underwater floats have produced a wealth of in situ observational data from the open ocean. When deployed in large numbers, or ‘swarms’, floats offer a unique …
Bursty Bulk Flow Turbulence as a Source of Energetic Particles to the Outer Radiation Belt
We report observations of a Bursty Bulk Flow (BBF) penetrating to the outer edge of the radiation belt. The turbulent BBF braking region is characterized by ion velocity fluctuati…
Delineation of the Luvuvhu Headwater Catchment using high-resolution Digital Elevation Models (DEMs)
Hydrological studies pivot on the proper understanding of the drainage system that is under investigation. It is imperative to delineate the catchment and better visualise the are…
Close view of the lightning attachment process unveils the streamer zone fine structure
A very close high-speed video observation of lightning attachment to a building revealed novel details regarding the leader streamer zone dynamics. Upward leaders propagate in a s…
Baseflow Yield Coefficient: A Simple Hydrological Index for Water Yield and Hydrological Regulation
The rise of the ecosystem services concept has brought some characteristics of the water cycle to the attention of a broader audience who are not necessarily intrinsically familia…
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