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Showing 7751 to 7800 of 59105 works
Advancing drought monitoring via feature extraction
A drought is a slowly developing natural phenomenon that can occur in all climatic zones and can be defined as a temporary but significant decrease in water availability. Over the…
Estimation of the mode conversion effect on the determination of southern boundary for the ∼ 100 MeV electron precipita…
Key Points: • The influence of the ultraenergetic relativistic electron precipitations on mode conversion in the terrestrial waveguide was analysed. • New statement of a mode conv…
Interseismic deformation from Sentinel-1 burst-overlap interferometry: Application to the southern Dead Sea fault
Interferometric Synthetic Aperture Radar (InSAR) data are increasingly being used to map interseismic deformation with ascending and descending-orbit observations allowing for res…
Geochemical characterization of the Oman Crust-Mantle transition zone, OmanDP Holes CM1A and CM2B
The transition from the gabbroic oceanic crust to the residual mantle harzburgites of the Oman ophiolite has been drilled at Holes CM1A and CM2B (Wadi Tayin massif) during Phase 2…
A Data Library to Archive, Analyze, Visualize and Serve Online Datasets from Multiple Domains in an Interoperable Frame…
The PRISM Data Library (DL) is designed to optimize the display, analysis, and retrieval of multiple domains datasets. Originally created for climate data, we aggregated data from…
Internal tides responsible for lithogenic inputs along the Iberian continental slope
This study details sediment resuspension due to internal tides (ITs) and the subsequent propagation of suspended particles along and off the Iberian continental slope. Five resusp…
Predicting Fluid Flow Regime, Permeability, and Diffusivity in Mudrocks from Multiscale Pore Characterisation
In geoenergy applications, mudrocks prevent fluids to leak from temporary (H2, CH4) or permanent (CO2, radioactive waste) storage/disposal sites and serve as a source and reservoi…
Dissolved Organic Carbon Chemostasis in Antarctic Polar Desert Streams
The relationship between dissolved solute concentration ( C ) and discharge ( q ) in streams, i.e., the C-q relationship, is a useful diagnostic tool for understanding biogeochemi…
Human Mobility to Parks under the COVID-19 Pandemic and Wildfire Seasons in the Western and Central United States
In 2020, people’s health suffered a great crisis under the dual effects of the COVID-19 pandemic and the extensive, severe wildfire in the western and central United States (U.S.)…
A newly discovered Late-Cretaceous East Asian flat slab explains its unique lithospheric structure and tectonics
The existence of historical flat slabs remains debated. We evaluate past subduction since 200 Ma using global models with data assimilation. By reproducing major Mesozoic slabs wh…
Segmentation of shallow slow slip events at the Hikurangi subduction zone explained by along-strike changes in the faul…
Over the last two decades, geodetic and seismic observations have revealed a spectrum of slow earthquakes along the Hikurangi subduction zone in New Zealand. Of those, shallow slo…
Recovery from Acid Rain in the Mississippi River Basin
Acid rain has degraded environmental health since the Industrial Revolution. Legislative efforts have 19 successfully reduced deposition rates, but recovery of affected ecosystems…
Impact of the Juan Fernandez ridge on the Pampean flat subduction inferred from full waveform inversion
A new seismic velocity model for the south Central Andes is derived from full waveform inversion, covering the Pampean flat and adjacent Payenia steep subduction segments. Strong …
Stochastic Diffusion of Electrons interacting with Whistler-mode Waves in the Solar Wind
Whistler-mode waves have often been proposed as a plausible mechanism for pitch angle scattering and energization of electron populations in the solar wind. Recent studies reporte…
COMPARATIVE EVALUATION OF DIGITAL ELEVATION MODEL BASED ON ELEVATION DATA AND TERRAIN ATTRIBUTES LEADING TO THEIR VALID…
Digital Elevation Model (DEM) is the 3D-representation of terrain surface in the discrete form and a standard tool to examine the hydrological and research application related to …
Deciphering the Role of Ocean Dynamics in Equatorial Pacific Decadal Variability
Equatorial Pacific decadal variability (EPDV) modulates global climate. Although EPDV is suggested to be generated by both air-sea thermodynamically coupled slab ocean models (SOM…
Combining Multi-Wavelength AERONET SSA Retrievals with a MIE Model and UV AI from OMI to Quantify the Global AAOD of BC…
Black carbon (BC), organic carbon (OC) and dust (or Absorbing Aerosols - AA) strongly absorb visible solar radiation, leading to impacts on the atmospheric radiation budget, clima…
Global impact of lightning-produced oxidants
Lightning plays a major role in tropospheric oxidation, and its role on modulating tropospheric chemistry was thought to be emissions of nitrogen oxides (NO x ). Recent field and …
On the speciation of iodine in aerosol
We have compiled and analyzed a comprehensive dataset of field observations of iodine speciation in marine aerosol. The soluble iodine content of fine aerosol (PM1) is dominated b…
Space Physics and Aeronomy Perspectives on Integrated, Coordi- nated, Open, Networked (ICON) Science
This article is a commentary about the state of Integrated, Coordinated, Open, and Networked (ICON) principles (Goldman et al., 2021) in Space Physics and Aeronomy and a discussio…
Ghost of Melts Past Beneath an Active Plate Boundary
We examine mid-lower crustal xenoliths erupted in Late Pleistocene to Holocene alkali basalt at San Quintin, Baja California, Mexico to investigate the role of partial melt in dee…
HAPI: An API Standard for Accessing Heliophysics Time Series Data
Heliophysics data analysis often involves combining diverse science measurements, many of them captured as time series. Although there are now only a few commonly used data file f…
Thunderstorm Electric Field Modeling from Electrification to Terrestrial Gamma-ray Flash Production
Knowledge of the electric field structures inside thunderstorms is necessary for understanding of thunderstorm electrification, lightning initiation, and terrestrial gamma-ray fla…
Prediction of Off-Fault Deformation from Experimental Strike-slip Fault Structures using the Convolutional Neural Netwo…
Crustal deformation occurs both as localized slip along faults and distributed deformation off faults; however, we have few robust estimates of off-fault deformation. Scaled physi…
Variability of track selection approaches and progress for a new etching protocol for apatite-fission tracks
We report a new series of step-etch experiments to reveal the influence of microscopy technique on track selection bias. Two different aliquots of induced tracks in Durango apatit…
MJO Initiation Triggered by Amplification of Upper-tropospheric Dry Mixed Rossby-gravity Waves
A possibly important dynamical process for the Madden–Julian oscillation (MJO) convective initiation is proposed. An MJO event during the “CINDY2011” field campaign is triggered b…
Stratospheric HALE Radar for STV
Aloft Sensing, Inc. (Aloft) is developing a breakthrough compact radar system for deployment on high-altitude long-endurance (HALE) stratospheric platforms. These emerging platfor…
Estimating Impact Relevant Thresholds of Multi-hazards in the US Southeast Coast
Natural hazards such as coastal and river floods, tornadoes, droughts, heatwaves, wildfires, and landslides cause significant economic losses (e.g., agriculture and property damag…
Global Ocean Sediment Composition and Burial Flux in the Deep Sea
Quantitative knowledge about the burial of sedimentary components at the seafloor has wide-ranging implications in ocean science, from global climate to continental weathering. Th…
Baltic Perspective on Early to early Late Ordovician δ13C and δ18O Records and its Paleoenvironmental Significance
The current study presents new bed-by-bed brachiopod δ 13 C and δ 18 O records from Öland, Sweden, which together with previously published data from the East Baltic region, const…
Investigating Major Causes of Frequent Flooding in Highly Urbanized Metropolitans Using a Quali-Quantitative Approach
This study investigates the key reasons for repeated pluvial flooding in highly urbanized Kathmandu Metropolitan City (KMC), using an expert’ s-based questionnaire and quantitativ…
Intelligent prediction of stable isotope geochemistry of coalbed gas for its origin
Stable isotope analysis gives the criteria to define the characteristics of the coalbed gas. In this paper machine learning approach was applied for this purpose. There are two fu…
Understanding the impact of land-use change on urban floods and evaluating alternate methods for stormwater management …
Due to urbanization, there is an increase in the impervious surface and in peak runoff volumes. In the past, there is significant damage caused by urban floods. Urban floods are b…
Frost-induced changes in aboveground biomass stocks in the northmost Neotropical dry forest
Climate-induced episodes of extensive tree mortality worldwide are leading to abrupt changes in forest carbon stocks. A severe frost in early February 2011 triggered widespread tr…
Anisohydric Species Acclimated Hydraulic Traits to High Temperature while Isohydric Species Increased Dieback During Dr…
Climate warming is projected to increase the frequency of climate extremes. The physiological response of tree species to these changes has not been well characterized. Particular…
A Harmonised Instrumental Earthquake Catalogue for Iceland and the Northern Mid-Atlantic Ridge
A comprehensive catalogue of historical earthquakes, with accurate epicentres and harmonised magnitudes is a crucial resource for seismic hazard mapping. Here we update and combin…
Sedimentary structure derived from multi-mode ambient noise tomography with dense OBS network at the Japan Trench
We derive the 3-D S-wave velocity structures of sediments and upper crust in the region off Ibaraki by applying ambient noise tomography to a dense array of short-period ocean bot…
Use of near-real-time satellite precipitation data and machine learning to improve extreme runoff modeling
Extreme runoff modeling is hindered by the lack of sufficient and relevant ground information and the low reliability of physically-based models. The authors propose to combine pr…
Fully Kinetic Simulations of Radio Emission from a Propagating Electron Beam
Type III radio bursts are associated with energetic electrons accelerated by solar flares from the lower corona. The standard theory links these emissions to a conversion of plasm…
Identifying Southern Ocean fronts using unsupervised classification and edge detection
Fronts are ubiquitous in the climate system. In the Southern Ocean, fronts delineate water masses, which correspond to upwelling and downwelling branches of the overturning circul…
Spiral Radiation Pattern of a Relativistic Charged Particle in a Periodic Motion - Part -2
The forward peaking radiation pattern of a single particle with an increasing particle velocity is well-established knowledge. Further details of a single particle radiation patte…
Benefits and Challenges of Developing Standards for Earth Observations
Data is the lifeblood of the geosciences. The acquisition, processing and interpretation of data all depend on established specifications describing the systems and procedures tha…
Recovered measurements of the 1960s stratospheric aerosol layer and UM-UKCA model experiments to assess the Mar 1963 Ag…
In this presentation I will explain an analysis of three different recovered remote-sensing measurements of the 1960s Northern Hemisphere mid-latitude stratospheric aerosol layer.…
Micromagnetic modelling and multipole expansions from Micromagnetic Tomography
Micromagnetic Tomography (MMT) is a technique that combines X-ray micro tomography and scanning magnetometry data to numerically invert the surface magnetic signal for the magneti…
It’s the heat and the humidity: The complementary roles of temperature and specific humidity in recent changes to the e…
Global change is a change in the planetary energy balance. It is usually expressed as a change in near-surface (2 m) air temperature (Ta), but changes to Ta represent only part of…
Using Machine Learning to Detect Chaos Terrain on Europa
Areas of Jupiter’s moon, Europa, contain irregular ice floes that are illustrative of the massive disruption, reorientation, and refreezing experienced on Europa’s surface as Jupi…
Modeling water infiltration into hydrophobic soils
Infiltration into hydrophobic soils has been widely observed, quantified and documented in many situations and several climates (DeBano, 2000; Angulo-Jaramillo et al., 2016).The m…
Improving soil carbon estimates by linking conceptual pools against measurable carbon fractions in the DAYCENT Model Ve…
Terrestrial soil organic carbon (SOC) dynamics play an important but uncertain role in the global carbon (C) cycle. Current modeling efforts to quantify SOC dynamics in response t…
Parametric Uncertainty Quantification in Urban Flooding Models
Multiphysics urban flood models are commonly used for urban infrastructure development planning and evaluating risk due to climate change and sea level rise. However, these integr…
What Geoscientists Want: Short and Sweet Commands with Eco-friendly Data
The twin pressures to achieve mind-share and to harness available computing power drive the evolution of geoscientific data analysis tools. Such tools have enabled a remarkable pr…
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