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Showing 8351 to 8400 of 22070 works
Are Cyanobacterial Blooms Common in the Coastal Waters of Alaska?
The community of Kotzebue, located on the coast of Kotzebue Sound, which is northeast of the Bering Straits adjacent to the Chukchi Sea, is reliant on the waters around Kotzebue S…
Isotopic Signatures of Methane Emissions from Dairy Farms in California's San Joaquin Valley
Since 2007, the global mole fraction of atmospheric methane (CH4) has steadily increased meanwhile the 13C/12C isotopic ratio of CH4 (expressed as δ13C-CH4) has shifted to more ne…
Astrophysics and Planetary science for development in Africa
Africa is a continent with great assets for Astrophysics and Planetology (including astrobiology): skies unpolluted with anthropogenic light, meteorites and impact structures, and…
Desalination; a comprehensive and practical assessment on challenges and opportunities ahead
Water scarcity becomes more severe and there will need to be a concerted effort to ensure that water supply remains secure. To mitigate the danger of water scarcity using an energ…
Australian fire emissions of carbon monoxide estimated by global biomass burning inventories: variability and observati…
Australian fires are a primary driver of variability in Australian atmospheric composition and contribute significantly to regional and global carbon budgets. However, biomass bur…
Iron isotope and trace metal compositions of manganese nodules from the Central Indian Basin: Evidence for Fe fluxes fr…
Iron isotope compositions (δ 56 Fe) of ferromanganese (Fe-Mn) crusts and nodules are reliable proxies for understanding the biogeochemical cycling of Fe in the ocean. Fe-Mn nodule…
Quantifying the impact of future extreme heat on the outdoor work sector in the United States
Outdoor workers perform critical societal functions, often despite higher-than-average on-the-job risks and below-average pay. Climate change is expected to increase the frequency…
Development of a discontinuous Galerkin ionosphere-plasmasphere model
The objective of this study is to explore the application of high-order numerical methods in ionosphere-plasmasphere modeling. Specifically, the nodal discontinuous Galerkin (DG) …
Quantifying nitrous oxide emissions in the U.S. Midwest - A top-down study using high resolution airborne in situ obser…
The U.S. Midwest, with its intensive agriculture, is a prominent source of nitrous oxide (N2O) but top-down and bottom-up N2O emission estimates differ significantly. We quantify …
Annual cycle and spatial structure of zonal momentum fluxes in the deep tropics
The longitudinal structure and annual cycle of mean meridional and eddy momentum fluxes in the upper troposphere of the deep tropics are studied using ERA-Interim reanalysis over …
A comparison of moderate and extreme ERA-5 daily precipitation with two observational data sets
A comparison of moderate to extreme daily precipitation from the ERA-5 reanalysis by the European Centre for Medium-Range Weather Forecasts (ECMWF) against two observational gridd…
Variations in lithospheric anisotropy across the North Anatolian Fault revealed by teleseismic shear wave splitting
Shear wave splitting measurements across the North Anatolian Fault (NAF) in Northern Turkey are calculated from teleseismic SKS arrivals recorded by the dense temporary DANA seism…
Examining the quality of CFOSAT-based surface winds over global oceans with respect to 111 buoys
The China-France Oceanography Satellite (CFOSAT), launched on 29 October 2018, is the world’s first satellite that carries both a real aperture radar spectrometer and a fan-shaped…
Simulating melting in seismic fault gouge
During an earthquake, fault slip weakening is often explained by frictional heating phenomena, generally promoting melt production on the fault surface. Here, we investigate the i…
Rotational Discontinuity in the Magnetopause Boundary Layer for Open Magnetosphere
In this paper, we analyzed the fine structure of the rotational discontinuity (RD) in the magnetopause of the open magnetosphere by using the MMS four-point magnetic field measure…
Modeling Multi-Objective Pareto-Optimal Reservoir Operation Policies using State-of-the-art Modeling Techniques
A novel challenge faced by the water scientists and water managers today is the efficient management of the available water resources for meeting crucial demands such as drinking …
The elements of the thermodynamic structure of the tropical atmosphere
Understanding of the tropical atmosphere is elaborated around two elementary ideas, one being that density is homogenized on isobars, which is referred to as the weak temperature …
The importance of temperature-dependent diffraction data in understanding magnetic changes across the pyrrhotite λ-tran…
Pyrrhotites are a class of geologically important nonstoichiometric iron sulfides with the general composition of Fe 1-x S (0 ≤ x ≤ 0.125) and are found in a variety of intergrown…
Kinetic interaction of cold and hot protons with an oblique EMIC wave near the dayside reconnecting magnetopause
We report observations of the ion dynamics inside an Alfven branch wave that propagates near the reconnecting dayside magnetopause. The measured frequency, wave normal angle and p…
Assessment of Streamflow Forecast Skill in the Truckee River Basin
Water supply reliability in the Truckee River basin stands to substantially benefit from forecast-informed reservoir operations(FIRO), especially given expected increases in rain:…
Effect of Remotely Sensed Vegetation in Hydrology and Water Quality Predictions: New Evidence from Large-scale Watershe…
Traditional watershed modeling often overlooks the role of vegetation dynamics. While past studies indicate possible improved hydrologic predictions by increasing the physical rea…
Distribution and yield of trace metals from the foot of Mount Kilimanjaro to the coastal of Indian Ocean: impacts of na…
Cases of water related diseases due to metal pollution are increasing over the global. The condition is serious to most of developing countries as a results of industrialization a…
Defining the controls on microplastic settling in river systems to predict areas of ecological risk to microplastic pol…
The majority of marine plastic pollution originates from land-based sources with the dominant transport agent being riverine. Despite the widespread recognition that rivers domina…
Formation, Accretion and Reworking of Continents
Felsic continental crust is unique to the Earth in the solar system, but it still remains controversial regarding its formation, accretion and reworking. The plate tectonics theor…
Bennu’s Natural Sample Delivery Mechanism: Estimating the Flux of Bennuid Meteors at Earth
NASA’s OSIRIS-REx mission observed millimeter- to centimeter-scale pebbles being ejected from the surface of asteroid (101955) Bennu, indicating that Bennu is an active asteroid. …
East Australian cyclones and air-sea feedbacks
The importance of resolving mesoscale air-sea interactions to represent cyclones impacting the East Coast of Australia, the so-called East Coast Lows (ECLs), is investigated using…
Predicting dominance of sand transport by waves, tides and their interactions on sandy continental shelves
Waves and tidal currents resuspend and transport shelf sediments, influencing sediment distributions and bedform morphology with implications for various topics including benthic …
Topographic Correlations within Lunar Swirls in Mare Ingenii
The Moon's bright albedo markings, known as swirls, are defined by broad, bright, on-swirl areas separated by darker off-swirl lanes. Their formation mechanism has long been debat…
Global Importance of Secondary Ice Production
Measured ice crystal number concentrations are often orders of magnitude higher than the number concentrations of ice nucleating particles, indicating the existence of secondary i…
Seasonality of interbasin SST contributions to Atlantic tropical cyclone activity
Recent studies have demonstrated that the difference in sea surface temperature anomalies (SSTAs) between the tropical Atlantic main development region (MDR) and the tropical Paci…
Atmospheric Carbon and Transport – America (ACT-America) Datasets: Description, Management, and Delivery
The ACT-America project is a NASA Earth Venture Suborbital-2 mission designed to study the transport and fluxes of greenhouse gases. The open and freely available ACT-America data…
Investigating the Understanding of Oxidation Chemistry Using 20 Years of Airborne OH and HO2 Observations
Hydroxyl (OH) and hydroperoxyl (HO 2 ) drive the atmosphere’s oxidation of gases emitted from Earth’s surface and the formation and aging of aerosol particles. Thus, understanding…
Convection-Permitting Simulations with the E3SM Global Atmosphere Model
This paper describes the first implementation of the d x=3.25 km version of the Energy Exascale Earth System Model (E3SM) global atmosphere model and its behavior in a 40 day pres…
Implementation of improved parameterization of terrestrial flux in WRF-VPRM improves the simulation of nighttime CO2 pe…
Enhanced CO2 mole fraction bands were often observed immediately ahead of cold front during the Atmospheric Carbon and Transport (ACT)-America mission and their formation mechanis…
Physical Drivers of Thin Snowpack Spatial Structure from Unpiloted Aerial System (UAS) Lidar Observations
Snow distribution is a function of interactions among static variables, such as terrain, vegetation, and soil properties, and dynamic meteorological variables, such as wind speed …
Smart Meter Data to Analyze Electricity Demand from Single- and Multi-family Consumers in a Diverse Urban Environment
Natural and human-made extreme events can alter residential electricity demand in urban areas and stress the electricity grid. Different types of residential electricity consumers…
Measurements of aerosol dimensional distributions and microphysical characteristics: A comparison between Raman lidar a…
This manuscript compares aerosol size distributions and microphysical property measurements from the Raman lidar BASIL and from aircraft sensors during HyMeX-SOP1. The attention w…
Study on the inactivation of cyanobacteria bloom and the change of phosphorus and nitrogen through electrolysis
This study was conducted through elelctrolysis since titanium (Ti) as cathode and RuO 2 -IrO 2 coating stabilized (RuO 2 -IrO 2 /Ti) as anode to control the cyanobacteria bloom an…
Validation of a Multidimensional Smouldering Model
Smouldering is a flameless form of combustion driven by exothermic oxidation surface reactions within a porous medium. Smouldering is being harnessed by engineers to remediate liq…
Statistics on omega band properties and related geomagnetic variations
Using the list of the omega structures based on the The Magnetometers - Ionospheric Radars- Allsky Cameras Large Experiment (MIRACLE) network (Partamies et al. 2017), we obtained …
Dynamics of the Sun’s Polar Field: Possible Insights from Out of the Ecliptic Observations
The solar polar fields play a crucial role in sustaining the solar dynamo mechanism. Observations and computational modelling indicates that the surface dynamics of active regions…
A decentralized approach for modeling organized convection based on thermal populations on a microgrid
Recent insights into the spatial organization of atmospheric convection have emphasized the importance of its correct representation in Earth System Models (ESM). This study explo…
Probabilistic Machine Learning Estimation of Ocean Mixed Layer Depth from Dense Satellite and Sparse In-Situ Observatio…
The ocean mixed layer plays an important role in subseasonal climate dynamics because it can exchange large amounts of heat with the atmosphere, and it evolves significantly on su…
The Virtual Space Weather Modeling Centre - Part 3
The ESA Virtual Space Weather Modelling Centre (VSWMC )project was defined as a long term project including different successive parts. Parts 1 and 2 were completed in the first 4…
COVID-19 mortality and environmental factors during wet and dry seasons in West and Southern AFrica
SubSahara Africa has been the last continent to experience a significant number of cases in the novel Coronavirus (COVID-19). Several studies have suggested that air pollution is …
Multi-layer Seismic Anisotropy Beneath Greenland
Seismic anisotropy provides insight into past episodes of lithospheric deformation and the orientations of strain in the underlying asthenosphere. The Greenland mantle has played …
Fast response of Amazon rivers to Quaternary climate cycles
Large alluvial rivers transport water and sediment across continents and shape lowland landscapes. Repeated glacial cycles have dominated Earth's recent climate, but it is unclear…
The Global Distribution of Stormtime Geomagnetic Hazards
In this study, we present results from an investigation of the spatial variability of geomagnetic disturbances (GMDs) occurring during large (minimum Dst ≤ −100 nT) geomagnetic st…
COVID-19 pandemic reveals persistent disparities in nitrogen dioxide pollution
The unequal spatial distribution of ambient nitrogen dioxide (NO2), an air pollutant related to traffic, leads to higher exposure for minority and low socioeconomic status communi…
Rate and State Friction as a Spatially Regularized Transient Viscous Flow Law
The theory of rate and state friction unifies field, laboratory, and theoretical analysis of the evolution of slip on natural faults. While the observational study of earthquakes …
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