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Showing 10501 to 10550 of 22070 works
Dependence of atmospheric transport into the Arctic on the meridional extent of the Hadley cell
Recent studies have shown a large spread in the transport of atmospheric tracers into the Arctic among a suite of chemistry climate models, and have suggested that this is related…
Glacial to deglacial reservoir ages of surface waters in the southern South Pacific
Ocean sediment records document abrupt changes in glacial-to-deglacial circulation and mixing of the ocean, recorded as changes in 14 C reservoir ages of surface waters. Here we p…
Elucidating large-scale atmospheric controls on Bering Strait throughflow variability using a data-constrained ocean mo…
A regional data-constrained coupled ocean-sea ice general circulation model and its adjoint are used to investigate mechanisms controlling the volume transport variability through…
Seamless Long-Tail and Big Data Access via the EarthCube Brokering Cyberinfrastructure BALTO
The EarthCube BALTO broker (Brokered Alignment of Long-Tail Observations) provides streamlined access to both long-tail and big data using Web Services through several distinct me…
Reconstructing Ocean Surface Current Combining Altimetry and Future Spaceborne Doppler Data
Two methods for the mapping of ocean surface currents from satellite measurements of sea level and future current vectors are presented and contrasted. Both methods rely on the li…
A New Frontier in Ionospheric Observations: GPS Total Electron Content Measurements from Ocean Buoys
Ground-based Global Navigation Satellite System (GNSS) receivers have become an ubiquitous tool for monitoring the ionosphere. Total Electron Content (TEC) data from globally dist…
Lagrangian studies of marine production: a multi-method assessment of productivity relationships in the California Curr…
Upwelling of nutrient rich waters along continental shelves generates highly productive marine ecosystems affectingplanktonic communities from coastal to offshore domains. Methods…
Using a Deep Neural Network and Transfer Learning to Bridge Scales for Seismic Phase Picking
The important task of tracking seismic activity requires both sensitive detection and accurate earthquake location. Approximate earthquake locations can be estimated promptly and …
Permeability enhancement from a hydraulic stimulation imaged with Ground Penetrating Radar
We present evidence of permeability enhancement from hydraulic stimulation experiments in fractured crystalline rock. A total of almost 10m3 was injected in two fractured interval…
Irreversibility of Marine Climate Change Impacts under Carbon Dioxide Removal
Artificial carbon dioxide removal (CDR) from the atmosphere has been proposed as a measure for mitigating climate change and restoring the climate system to a target state after e…
What is Neo-Informatics?
The discipline of informatics, generically cast as the science and engineering of information system within a socio-technical framework, originating in the middle of last century …
Flexural Modeling of the Colville Foreland Basin, Northern Alaska
In this study, we model the flexure of the Colville foreland basin in northern Alaska and calculate the effective elastic thickness (Te) of the Arctic Alaska terrane with a simple…
Fault-valve behavior estimated from intensive foreshocks and aftershocks of the 2017 M 5.3 Kagoshima Bay earthquake seq…
Determining fluid migration and pore pressure changes within the Earth is key to understanding earthquake occurrences. We investigated the spatiotemporal characteristics of intens…
Detecting events in the urban seismic wavefield using a novel nodal array in Singapore: earthquakes, blasts and thunder…
Receiver density is key to being able to detect and characterise seismic events at the noise level. This is particularly important in urban environments where high cultural noise …
Universal Time Variations in Space Weather
We introduce the inductive effects of polar cap motions towards and way from the Sun into magnetospheric electrodynamics and show how this explains observed Universal Time variati…
Tidally driven interannual variation in extreme sea level frequencies in the Gulf of Maine
Astronomical variations in tidal magnitude can strongly modulate the severity of coastal flooding on daily, monthly, and interannual timescales. Here, we present a new quasi-nonst…
HighPGibbs, a Practical Tool for Fluid-Rock Thermodynamic Simulation in Deep Earth and Its Application on Calculating N…
The HighPGibbs program is designed to calculate thermodynamic equilibrium of fluid-rock minerals and solid solutions up to depths of lithospheric mantle. It uses the Gibbs free en…
Process oriented insights from interpretable machine learning - what influences flood generating processes?
Hydroclimatic flood generating processes, such as excess rain, short rain, long rain, snowmelt and rain-on-snow, underpin our understanding of flood behaviour. Knowledge about flo…
DFENS: Diffusion chronometry using Finite Elements and Nested Sampling
In order to reconcile petrological and geophysical observations in the temporal domain, the uncertainties of diffusion timescales need to be rigorously assessed. Here we present a…
Water as a mirror of environmental health:A symbiotic baseline study in Costa Rica’s Osa Peninsula.
To understand an integral environmental health dynamic a symbiotic observation of water and its socio-environmental interactions should be knitted. Assuming circularity of water c…
Paleogene V-shaped basins and Neogene subsidence of the Northern Lesser Antilles Forearc
Oblique collision of buoyant provinces against subduction zones frequently results in individualizing and rotating regional-scale blocks. In contrast, the collision of the Bahamas…
Relation between connectivity and coupling in the Chilean subduction zone: a first approach
A time-based complex network analysis on the seismic activity along the coast of Chile was made. The coast of Chile was divided on windows of 300 km in Latitude, from Arica up to …
Comment to: Troshichev, O. A., Janzhura, A. S., Stauning, P. (2006): Unified PCN and PCS indices: method of calculation…
In the publication Troshichev et al. (2006) on the Polar Cap (PC) indices, PCN and PCS, an error was made by using components of the Interplanetary Magnetic Field (IMF) in their G…
Climate forcing insufficient to drive apparent Common-Era sea-level lowstands in Maldives
Reconstructions of Common-Era sea level are informative of relationships between sea level and natural climate variation, and the uniqueness of modern sea-level rise. Kench et al.…
On Use of Low Cost, Compact GNSS modules for Ionosphere Monitoring
High grade or special purpose Global Navigation Satellite System (GNSS) receivers are used for ionosphere monitoring and research. These special kinds of receivers may provide dat…
Is Turning Down the Sun a Good Proxy for Stratospheric Sulfate Geoengineering?
Deliberately blocking out a small portion of the incoming solar radiation would cool the climate. One such approach would be injecting SO$_2$ into the stratosphere, which would pr…
Exploring the Critical Coronal Transition Region: The Key to Uncovering the Genesis of the Solar Wind and Solar Eruptio…
All current understanding (theoretical and observational) suggests that the development of the solar wind and CMEs takes place within 10 Rs, particularly below 4 Rs. This seemingl…
Retrospective Analysis and Bayesian Model Averaging of CMIP6 Precipitation in the Nile River Basin
The Nile river basin is one of the global hotspots vulnerable to climate change impacts due to fast growing population and geopolitical tensions. Previous studies demonstrated tha…
Nine Outstanding Questions of Solar Wind Physics
In situ measurements of the solar wind have been available for almost 60 years, and in that time plasma-physics simulation capabilities have commenced, and ground-based solar obse…
More than skin deep: sea surface temperature as a means of inferring Atlantic Water variability on the southeast Greenl…
Outlet glaciers account for almost half of the Greenland Ice Sheet’s mass loss since 1990. Warming subsurface Atlantic Water (AW) has been implicated in much of that loss, particu…
Revisiting the Timpson Induced Earthquake Sequence: A System of Two Parallel Faults
The 17 May 2012 M4.8 Timpson earthquake is the largest known earthquake in eastern Texas. It is suspected to have been induced by wastewater injection from two nearby, high-volume…
Revisiting the existing definitions of wildland-urban interface for California
Past studies reported a drastic growth in the wildland-urban interfaces (WUI), the locations where man-made structures meet or overlap wildland vegetation. There is a perception t…
Study of Environmental Emissions from Road Transportation: A case of Bhaktapur Municipality, Nepal
The unprecedented growth of emissions has deteriorated air quality dramatically leading to a pulmonary complication in human health. Especially during the winter season, the preva…
Seasonal Forecasts of the Exceptional Northern Hemisphere Winter of 2020
The winter of 2019-20 was dominated by an extremely strong stratospheric polar vortex and positive tropospheric Arctic Oscillation (AO). Here, we analyze forecasts from 6 differen…
Hydraulic transport through calcite bearing faults with customized roughness: Effects of normal and shear loading.
Understanding fluid flow in rough fractures is of high importance to large scale geologic processes and to most anthropogenic geo-energy activities. Here, we conducted fluid trans…
Probing fault frictional properties during afterslip up- and downdip of the 2017 Mw 7.3 Sarpol-e Zahab earthquake with …
We use Interferometric Synthetic Aperture Radar (InSAR) data collected by the Sentinel-1 mission to study the co- and postseismic deformation due to the 2017 Mw 7.3 Sarpol-e Zahab…
On the role of domain aspect ratio in the westward intensification of wind-driven surface ocean circulation
The two seminal studies on westward intensification, carried out by Stommel and Munk over 70 years ago, are revisited to elucidate the role of the domain aspect ratio (i.e.~meridi…
Modelling precursory laboratory seismicity using a roughness-based rate- and state-dependent friction model
We investigate experimental results from a direct shear friction apparatus, where a fault was formed by pressing mature, worn surfaces of two polymethyl methacrylate (PMMA) sample…
On the Detection Capabilities of Underwater DAS
The novel technique of distributed acoustic sensing (DAS) holds great potential for underwater seismology by transforming standard telecommunication cables, such as those currentl…
Directional Compaction
New true-triaxial experiments of sandstone compaction under non-hydrostatic load 19 demonstrate directional (non-isotropic) compaction. 20 We introduce a directional compactio…
Pressure-to-depth conversion models for metamorphic rocks: derivation and applications
Pressure-to-depth conversion is a crucial step towards geodynamic reconstruction but remains strongly debated. Here, we derive pressure-to-depth conversion models using either one…
The Quasi-Biennial Oscillation: A Second Disruption in Four Years
The quasi-biennial oscillation (QBO) is a pattern of descending easterly and westerly winds in the equatorial stratosphere that repeats every 28 months on average. The QBO matters…
Historical and projected changes in the Southern Hemisphere surface westerlies
Changes to the Southern Hemisphere (SH) surface westerlies not only affect air temperature, storm tracks and precipitation; they are also pivotal in controlling global ocean circu…
Rockwall slope erosion in the northwestern Himalaya
Rockwall slope erosion is an important component of alpine landscape evolution, yet the role of climate and tectonics in driving this erosion remains unclear. We define the distri…
Extending the Atmospheric River Concept to Aerosols: Climate and Air Quality Impacts
Despite strong impacts that aerosols have on climate and air quality, significant gaps remain in our knowledge concerning their long-range transport, especially extreme transport …
Tracer and observationally-derived constraints on horizontal and diapycnal diffusivities in ocean models
Mixing parameters can be inaccurate in ocean data assimilation systems, even if there is close agreement between observations and mixing parameters in the same modeling system whe…
Causes of marine heatwaves in the East China Sea and the South Yellow Sea in three consecutive summers during 2016-2018
In three consecutive years from 2016 to 2018, extreme ocean warming events, or marine heatwaves (MHW), occurred during boreal summers in the East China Sea (ECS) and South Yellow …
Compact field-deployable automated c-axis analyzer for ice thin sections
Automated c-axis analyzers are a critical tool for harvesting large-scale ice crystal orientation data from thin section analysis, but existing examples are not designed for deplo…
Storms and the Depletion of Ammonia in Jupiter: I. Microphysics of “Mushballs’
Microwave observations by the Juno spacecraft have shown that, contrary to expectations, the concentration of ammonia is still variable down to pressures of tens of bars in Jupite…
Magnitude of the 39.8 ka Campanian Ignimbrite, Italy: insights from an ignimbrite isopach map
The 39.8 ka Campanian Ignimbrite (CI) is the largest caldera-forming eruption of the Campi Flegrei during the Quaternary, which had a global-scale impact on the environment and hu…
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