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Showing 11651 to 11700 of 22070 works
The Formation and Development of Hydrological Drought- Kimienna River Case Study
Human activities affecting hydrological processes in a catchment have many forms and the effect of those activities on the propagation of drought in a catchment depends on the rel…
Influence of global climate signals on groundwater anomalies in High Plains aquifer
The Gravity Recovery and Climate Experiment (GRACE) mission and the Follow-On mission (GRACE-FO) have been widely used to estimate Groundwater (GW) at different scales. With impro…
Parametric Study of Prompt Methane Release Impacts II: Effect of a Dynamic Ocean on Model Results
A unique event in 2020 was the nearly complete lack of ice cover on the shallow Kara Sea and Laptev Sea continental shelves at the end of October – a necessary antecedent to hypot…
From Coastal Retreat to Seaward Growth: Emergent Behaviors from Paired Community Beach Nourishment Choices
Coastal communities facing shoreline erosion preserve their beaches both for recreation and for property protection. One approach is nourishment, the placement of externally-sourc…
The strength of the Earth’s magnetic field and the Cretaceous Normal Superchron: New data from Costa Rica
Constraining the long-term variability and average of the Earth’s magnetic field strength is fundamental to understanding the characteristics and behavior of the geomagnetic field…
Weather and climate models in 16-bit arithmetics: Number formats, error mitigation and scope
The need for high precision calculations with 64-bit or 32-bit floating-point arithmetic for weather and climate models is questioned. Lower precision numbers can accelerate simul…
Advancing diagnostic model evaluation to better understand water shortage mechanisms in institutionally complex river b…
Water resources systems models enable valuable inferences on consequential system stressors by representing both the geophysical processes determining the movement of water, and t…
Initial Time Dependence of Wind- and Density-driven Lagrangian Residual Velocity in a Tide-dominated Bay
The nonlinear effect of the summer SE wind and density on the 3D structures of the full Lagrangian residual velocity (LRV) was quantified for a general nonlinear system, using Jia…
The Venusian atmospheric oxygen ion escape: Extrapolation to the early Solar System
The present atmosphere of Venus contains almost no water, but recent measurements indicate that in its early history Venus had an Earth-like ocean. Understanding how the Venusian …
Contrasting ENSO transition complexities between El Niño and La Niña: The underlying complexity dynamics and future cha…
An ENSO event can transition from one event to another in complex ways. An El Niño (La Niña) event can be preceded by a La Niña (El Niño) event to become a cyclic ENSO, by a neutr…
The Heliophysics and Space Weather Open Knowledge Network: The Convergence Hub for the Exploration of Space Science (CH…
The growing scale of Earth and space science challenges dictate new modes of discovery–discovery that embraces cross-disciplinary interactions and links between communities, betwe…
Synchronization between the zonal jet stream and temperature anomalies leads to the persistence of the January 2019 col…
In late January 2019, a severe cold air outbreak brought the coldest temperatures in over 20 years to Midwestern United States and Eastern Canada. With a newly developed functiona…
Magma chamber formation by dike accretion and crustal melting: 2D thermal model with emphasis on zircon record
Rapid progress in investigation of zircon records for U-Th-Pb ages and O and Hf isotopes in igneous rocks require understanding how magma bodies are formed and evolve in the crust…
Mapping the Thermal Lithosphere and Melting across the Continental US
The thermal regime of continental lithosphere plays a fundamental role in controlling the behavior of tectonic plates. In this work, we assess the thermal state of the North Ameri…
Is there a tropical response to recent observed Southern Ocean cooling?
Despite global warming, SSTs in the Southern Ocean (SO) have cooled in recent decades largely as a result of internal variability. The global impact of this cooling is assessed by…
Reconnection and Dipolarization Driven Auroral Dawn Storms and Injections
Jupiter displays many distinct auroral structures, among which auroral dawn storms and auroral injections are often observed contemporaneously. However, it is unclear if the conte…
Water quality improvement by good system design using modelling approaches: A review article”
Water quality assessment has increasingly become a vital part to meet the water needs for domestic, industrial and irrigation purposes. Water quality assessment is a multi-criteri…
Urbanization impacts on Pearl River Delta extreme rainfall - sensitivity to land cover change vs anthropogenic heat
Impacts of urban land cover and anthropogenic heat (AH) on extreme local rainfall over the coastal PRD megacity region during boreal summer are investigated by conducting numerica…
A Stability Approach to the Patchy Behaviour of Aquatic Plants in Rivers
The presence of vegetation in riverine habitats gathered the attention of scientific community during the last decades. Aquatic and riparian plants interact with sediment and affe…
Ice thickness measurements and volume estimates for Znosko glacier (Antarctica) using Glabtop model
Around the world there is a consensus of the importance of knowladge the ice thickness distribution and total ice volume for estimating future glacier change for both glaciologica…
A Global Reservoir Assessment Tool for Predicting Hydrologic Impact and Operating Pattern of Existing and Planned Reser…
Dam construction is on the rise in developing nations. Monitoring of these dams is necessary to understand downstream hydrologic impacts and for better planning and management of …
Using observational and reanalysis data to explore the Gulf of California boundary layer during the North American Mons…
This paper uses rawinsondes and pilot balloon data from the 2004 North American Monsoon (NAM) Experiment, as well as satellite-based products and reanalysis datasets that span 198…
Point-Biserial Correlation-Based Skill Scores for Probabilistic Forecasts
The point-biserial correlation (rpb) coefficient is a measure of the strength of association between a continuous-level variable and a dichotomous (“naturally” or “artificially” d…
Diagnosing Primary Condensation Rate Attributed to the Moisture Convergence: Applications to Atmospheric River Analysis…
Abnormally heavy precipitation events can lead to numerous hazards, including flooding, landslides, and avalanches. Their developments require a sufficient supply of moisture and …
Environmental thresholds for phytoplankton group dynamics in the Western Lake Erie
Environmental factors influencing phytoplankton assemblage dynamics in freshwater ecosystems are an area of ongoing research in the Great Lakes, particularly Lake Erie where harmf…
Effect of grain shape on quasi-static fluid-fluid displacement in porous media
We study how grain shapes impact multiphase flow in porous media in the quasi-static regime. An extended pore-network model with consideration of menisci pinning at sharp edges of…
An optimized indirect method to estimate groundwater table depth anomalies over Europe based on Long Short-Term Memory …
Long Short-Term Memory (LSTM) networks are a deep learning technology to exploit long-term dependencies in the input-output relationship, which has been observed in the response o…
Assessing Property Loss in Louisiana, U.S.A., to Natural Hazards Incorporating Future Projected Conditions
Proper assessment of the economic risk from hazards is an important prerequisite toward enhancing resilience and is often overlooked or underestimated in importance. This research…
Determining reliable histories of slip on normal faults with bedrock scarps using cosmogenic exposure data
Cosmogenic exposure data can be used to calculate time-varying fault slip rates on normal faults with exposed bedrock scarps. However, the method relies on assumptions related to …
Critical zone storage control on the water ages in ecohydrological outputs
Spatially-explicit knowledge of the origins of water resources for ecosystems and rivers is challenging when using tracer data alone. We use simulations from a spatially-distribut…
Impact of Sudden Stratospheric Warmings on United Kingdom mortality
Sudden Stratospheric Warmings (SSWs) during boreal winter are one of the main drivers of sub-seasonal climate variability in the Northern Hemisphere. Although the impact of SSW ev…
Long-wavelength gravity field constraint on the lower mantle viscosity in North America
The long-wavelength negative gravity anomaly over Hudson Bay coincides with the area depressed by the Laurentide ice sheet during the Last Glacial Maximum, suggesting that it is, …
Multi-Decadal Measurements of UTLS Gravity Waves Derived from Commercial Flight Data
Gravity waves (GWs) are key drivers of atmospheric dynamics, with major impacts on climate and weather processes. However, they are challenging to measure in observational data, a…
Unsupervised learning of seismic wavefield features: clustering continuous array seismic data during the 2009 L’Aquila …
We apply unsupervised machine learning to three years of continuous seismic data to unravel the evolution of seismic wavefield properties in the period of the 2009 L’Aquila earthq…
A preliminary probabilistic multi-hazard assessment for Ceboruco volcano (Mexico)
Ceboruco (2280 m.a.s.l.), in the western Trans-Mexican Volcanic Belt, is considered among the most hazardous volcanoes in Mexico. Some 55,000 people and important infrastructure (…
Projected Changes to Cool-Season Storm Tides in the 21st Century along the Northeastern United States Coast
This study investigates changes and uncertainties to cool-season (November-March) storm tides along the U.S. northeast coast in the 21st century under the high RCP8.5 emission sce…
Realism of simulated internal variability in September Arctic sea ice
Arctic summer sea ice has decreased dramatically over the last few decades, with a substantial part of this decline attributed to internal variability. However, models show large …
Low-frequency earthquakes observed in close vicinity of repeating earthquakes in the brittle upper crust of Hakodate, H…
We conducted a detailed investigation of an earthquake cluster distributed from the lower crust to the upper crust beneath Hakodate, Hokkaido, which included both low-frequency ea…
Does ring current heating generate the observed O$^+$ shell?
The Naval Research Laboratory (NRL) Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere code is used to examine the effect of ring current heating during a sto…
Tropical African wildfire aerosols Trigger Teleconnections in the mid-high latitude of Northern Hemisphere in Boreal Wi…
This study investigates the impacts of wildfire aerosols (primary organic carbon, black carbon and sulfate) on the Northern hemispheric boreal winter climate. We found that wildfi…
The Orinoco Low-Level Jet: An Investigation of its Mechanisms of Formation Using the WRF Model
The Orinoco low-level jet (OLLJ) is characterized using finer horizontal, vertical, and temporal resolution than possible in previous studies via dynamical downscaling. The invest…
The phase of water ice which forms in cold clouds in the mesospheres of Mars, Venus and Earth
Water ice clouds form in the mesospheres of terrestrial planets in the solar system (and most likely elsewhere) by vapor deposition at low pressures and temperatures. Under these …
Bayesian Hierarchical Modeling of Sea Level Extremes
Reliable estimates of occurrence probabilities of sea level extremes are required in coastal planning (e.g. design floods) and to mitigate risks related to flooding. Probabilities…
Water-Level and Stream-Flow Earthquake Precursors and Their Possible Mechanisms
This paper presents some pre-earthquake and coseismic water-level and stream-flow changes observed in Japan and Taiwan. The results suggest that: (1) Hydrological precursors do oc…
Energetic proton acceleration associated with Io's footprint tail
Observations of energetic charged particles associated with Io’s footprint (IFP) tail, and likely within or very near the Main Alfvén Wing, during Juno’s 12th perijove (PJ) crossi…
Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020
Measurements of solar ultraviolet radiation (UVR) performed between January and June 2020 at 10 Arctic and subarctic locations are compared with historical observations. Differenc…
Hydrodynamic impacts of winter storms and hurricanes on a two-inlet system
The Ocean City Inlet was created in the early 1930s by a strong hurricane mobilizing the sediment and thus separating Ocean City from Assateague Island, making the Maryland coasta…
Deep neural network-based surrogate model linked with particle swarm optimization for identification of subsurface cont…
Identifying subsurface contamination is challenging as the sources are not directly perceivable. Aquifer contamination only gets noticed when it is measured in one of the observat…
High-resolution Monitoring of Forest Carbon Sequestration to Meet Climate Goals
Members of the U.S. Climate Alliance, a coalition of 24 states committed to achieving the emissions reductions outlined in the 2015 Paris Agreement, are considering policy options…
High-resolution forest carbon modeling for climate mitigation planning over the 11-state RGGI+ region, USA
Climate mitigation planning requires accurate information on forest carbon dynamics. Forest carbon monitoring and modeling systems need to step beyond the traditional Monitoring, …
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