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Showing 13201 to 13250 of 22070 works
Dry deposition of reactive Nitrogen over the São Paulo state, Brazil
Human activities have been changing deposition rate of the atmospheric reactive N over the last decades. The understanding of the process that rules the accumulation and depositio…
MASER (Measuring Analyzing & Simulating Emissions in Radio frequencies), a Toolbox for Low Frequency Radio Astronomy
The MASER (Measuring, Analysing and Simulating Radio Emissions) project provides a comprehensive infrastructure dedicated to low frequency radio emissions (typically < 50 to 100 M…
Thermal flexure and glacier calving
Glaciers and ice sheets that terminate in bodies of water are expected to undergo thermal expansion as ice comes into contact with much warmer liquid water. Here, I investigate th…
Investigating hypoxia in a climate change scenario in a region of upwelling
Increasing CO2 in the ocean leads to warming, reduced pH (ocean acidification), and lower oxygen content in deeper ocean waters. Warming, ocean acidification, and hypoxia in deep …
Evaluating the recovery of beach-dune systems from the 2016 El Niño using unmanned aerial systems (UAS) and terrestrial…
This paper compares and contrasts UAS-based Structure from Motion (SfM) and TLS survey methods as applied to evaluate the impacts of, and recovery from, the extreme El Niño 2015-1…
Stochastic Parametrization of Wave Breaking
Wave breaking transfers momentum between waves to currents. In doing so it dissipates wave energy and affects long-term dispersion and transport of tracers, Wave breaking also aff…
Global surface ocean phytoplankton community structure determined from co-variability in phytoplankton pigment concentr…
High performance liquid chromatography (HPLC) remains one of the most widely applied methods currently available for estimation of phytoplankton taxonomy from ocean samples. This …
Patterns and Drivers of Reef Fish Biodiversity in the Florida Keys National Marine Sanctuary from 1999 - 2016
The biodiversity of reef fish in the Florida Keys National Marine Sanctuary was evaluated in terms of abundance, biomass, evenness, species richness, Shannon diversity, Simpson di…
Contribution of high and low frequency internal waves to boundary turbulence in a lake
The interior of lakes is often quiescent and most of the mixing in a lake occurs at the sloping boundaries, where wind-induced internal waves create turbulence (which leads to mix…
Effects of the in situ stress on the mechanical anisotropy in the Longmaxi gas shale
For over half a century, the bedding plane orientation was believed to be the main cause of the mechanical anisotropy in shales. However, the in situ stress may also play an impor…
Raising the (subtidal) bar for embryonic dune growth and survival
Along sandy coasts, the seaward expansion of dunes starts with the development of embryonic dunes. Vegetation is crucial for their initiation and the subsequent increase in dune h…
Study of the Urban Heat Island and its Effect on the Planetary Boundary Layer (PBL) for the El Paso - Juarez Airshed
The planetary boundary layer (PBL) is a layer in the lowest part of the atmosphere where Earth’s surface strongly influences temperature, moisture, and wind through the turbulent …
Examining Precipitation and Temperature Relationships at Global Scales
Empirical Mode Decomposition (EMD) is used to examine the relationship between precipitation and surface temperature from six regions. Three regions are defined by physiography: w…
Circulation in the vicinity of the Reykjanes Ridge in June-July 2015
The Reykjanes Ridge is a major topographic feature that lies south of Iceland in the North- Atlantic Ocean and strongly influences the Subpolar Gyre (SPG) circulation. Based on ve…
Widespread fault creep in the northern San Francisco Bay Area revealed by multi-station cluster detection of repeating …
We search for repeating earthquakes (REs) in the northern San Francisco Bay Area in 1984-2016. By comparing over 670,000 waveforms from ~75,000 events, we identify candidate clust…
Biennial-Aligned Lunisolar-Forcing of ENSO: Implications for Simplified Climate Models
By solving Laplace’s tidal equations along the equatorial Pacific thermocline, assuming a delayed-differential effective gravity forcing due to a combined lunar+solar (lunisolar) …
Does data citation aid provenance? --- An update from ESIP
Formal data citation is a growing practice increasingly required by scientific journals. Roughly a decade ago, the Federation of Earth Science Information Partners (ESIP) began de…
EarthResourceML/INSPIRE Mineral Resources data models and ERML Lite: Data Standards to Deliver Mineral Resources Data E…
EarthResourceML (http://www.earthresourceml.org) is the international data model and standard for mineral resources data. EarthResourceML (ERML) was initially developed for the Au…
Ionospheric Scintillation Morphological Analysis Using GPS-SCINDA Data at Low Latitude Ground Station
This study aims to present the morphology of GPS L-band scintillations at the equatorial anomaly station Bahir Dar (11030’N, 37030’E) using GPS-SCINDA data in the descending high …
Unraveling the physics of the Yellowstone magmatic system using geodynamic simulations
The Yellowstone magmatic system is one of the largest magmatic systems on Earth, and thus an ideal location to study magmatic processes. Whereas previous seismic tomography result…
Influence of the Tibetan Plateau snow cover on East Asian winter upper-level jet streams at daily time scale
The response of atmospheric variability to the Tibetan Plateau (TP) snow cover (TPSC) at interannual to decadal time-scales has been extensively investigated. However, the respons…
MyGeoHub: A Collaborative Geospatial Research and Education Platform
Scientific research is increasingly collaborative and globally distributed; research groups now rely on web- based scientific tools and data management systems to simplify their d…
Are transition season melt events on the Greenland Ice Sheet driven by Baffin Bay sea ice-atmosphere interactions?
A number of insitu and passive microwave satellite sensors have observed Arctic sea ice and Greenland Ice Sheet (GrIS) mass loss trends over recent decades. Along with sea and lan…
Stochastic plume ensembles for an unified shallow-deep mass flux cumulus parameterization in the Community Earth System…
Many biases in global climate models (GCMs) have been associated with the poor representation of unresolved variability due to organised convection in the tropics by the underlyin…
A Step in Understanding Glacial Flow: Exploring the effects of entrained insoluble debris on mechanical properties of p…
An improved understanding of the mechanisms and factors affecting glacial flow is crucial to better predict sea level rise. Glacial ice often contains impurities such as the prese…
Assessment of climate change impacts on semi-arid watersheds in Peru
Low seasonal precipitation and high demand for water use for agriculture, mining, industry, power generation and human consumption have made water resources management a concern i…
Forecasting of the Thermosphere via Assimilating Electron Density and Temperature Data
The paper presents experiments of driving a physics-based thermosphere model by assimilating electron density (Ne) and temperature (Tn) data using the ensemble adjustment Kalman f…
Subglacial Canal Initiation Driven by Till Erosion
The distribution and drainage of meltwater at the base of glaciers sensitively affects fast ice flow. Classical studies suggest that thin meltwater films between the overlying ice…
Preparation for the Planetary Decadal Survey: The 2018 MEPAG Goals Document and Plans for 2019 Updates
Since 2001, the Mars Exploration Program Analysis Group (MEPAG) has maintained a document outlining community consensus priorities for scientific goals, objectives, and investigat…
The importance of pre-existing fracture networks for fault reactivation during hydraulic fracturing
Induced seismicity due to fluid injection, including hydraulic fracturing, is an increasingly common phenomenon worldwide. Yet, the mechanisms by which hydraulic fracturing causes…
A Hiatus in Midlatitude Winter Warming? Updated Trends in Annual Minimum Temperatures
Several winters of the 2010s have brought to many midlatitude regions periods of extreme cold relative to the past few years and even decades. Further, it is suggested that meltin…
Analysis and Applications of Water Vapor-derived Multispectral Composites for Geostationary Satellites
With the launch of the new Geostationary Operational Environmental Satellite-R (GOES-R) satellite series with the Advanced Baseline Imager (ABI) onboard both GOES-16, and -17 sate…
Ionosonde observations of ionospheric disturbances due to the 15 February 2013 Chelyabinsk meteor explosion
We report the results of our investigations on ionospheric effects potentially caused by the 15 February 2013 Chelyabinsk meteor explosion. We used the observation data from a num…
Historical analysis of the use of sea ice and weather modeling data in Search and Rescue (SAR) operations in the Arctic…
This research investigated the potential use and application of radar, satellite, and other tracking data for sea ice and weather conditions in maritime-related Search and Researc…
Validation of a regional agro-meteorological network in Central Italy using ECMWF ERA5 reanalysis
During the analysis - funded by The European Agricultural Fund for Rural Development (EAFRD) that has financed the EU’s contribution to rural development program in Umbria (Italy)…
NEMO Model Test Run for ROFI in the Gulf of Trieste
Test runs for the Region of Freshwater Influence (ROFI) in the Gulf of Trieste were setup using the ‘Nucleus for European Modelling of the Ocean’ (NEMO) model. Two test simulation…
The Greenhouse Effect -- Re-examination of the Impact of an Increase in Carbon Dioxide in the Atmosphere
Examination of the radiation budget at the surface of the Earth shows that there are three factors affecting the surface temperature; the amount of solar radiation absorbed by the…
Water as hazard and water as heritage at Spazi Aperti exhibition in Rome
In the call of 2015, the European Geosciences Union funded the workshop “Water as hazard and water as heritage”, to take place in Rome in the consecutive year. The frame for the w…
Modeling of mesoscale phenomena using WRF-BEP-BEM-CIM in a complex region
Because of the global warming, urban planning strategies must be investigated to reduce the building energy consumption and increase the thermal comfort in cities. In the framewor…
Downscaling satellite-derived soil moisture products based on soil thermal inertia: a comparison of three models over a…
High spatial resolution soil moisture information is important for regional–scale hydrologic, climatic and agricultural applications. However, available point-scale in-situ measur…
Erosion in living soil and life in eroded soil
The relationship between erosion and biodiversity is reciprocal. Soil organisms can both reduce soil loss, by improving porosity, and increase it, by diminishing soil stability as…
Chromophoric Dissolved Organic Matter (CDOM): chemical structure and PARAFAC analysis
The structure(s), distribution and dynamics of CDOM have been investigated over the last several decades largely through optical spectroscopy (including both absorption and fluore…
PHYTOREMEDIATION OF CRUDE OIL CONTAMINATED SOIL USING VETIVER GRASS (Chrypsopogon zizanioides).
Environmental pollution is generally caused by two main factors that include high rate of industrialization and rapid increase in population thereby putting more pressure on natur…
Utilizing Spirogyra grevilleana as a Phytoremediatory Agent for Reduction of Limnetic Nutrients and Escherichia coli Co…
The freshwater alga Spirogyra grevilleana was used in an experimental biofiltration system to reduce levels of Escherichia coli, nitrates, and phosphates. Water collected from a 2…
Sediment Organic Carbon Accumulation and Erosion-induced CO2 Emissions in the Delaware Bay Estuarine Salt Marshes
Tidal salt marshes are the most productive “Blue Carbon” ecosystem and play a significant role in the Global Carbon Cycle (Mcleod et al., 2011, Chung et al., 2011). Salt marshes a…
Robust Ecosystem Demography (RED): Emergent simplicity of tree size distributions.
Understanding how the terrestrial biomass will respond to perturbations is currently a large source of uncertainty within ESMs. Cohort-based demographic models have been a recent …
Empirically estimated electron lifetimes in the Earth’s radiation belts: 2. Comparison with theory
We compute quasilinear diffusion rates due to pitch-angle scattering by various mechanisms in the Earth’s electron radiation belts. The calculated theoretical lifetimes are compar…
Modeling and assessing impact of artificially enhancing the Arctic Sea Ice Albedo
Summer ice in the Arctic is diminishing at an alarming rate. Increase in radiative forcing due to the loss of sea ice is contributing to global warming. Artificially enhancing the…
Utilizing Spirogyra grevilleana as a Phytoremediatory Agent for Reduction of Limnetic Nutrients and Escherichia coli Co…
The freshwater alga Spirogyra grevilleana was used in an experimental biofiltration system to reduce levels of Escherichia coli, nitrates, and phosphates. Water collected from a 2…
Abrupt Climatic Change during the Latest Maastrichtian: Establishing Robust Temporal Links with the Onset of Deccan Vol…
A transient period of climate change, characterized by a global warming of ~2.5–5°C followed by a cooling to pre-excursion conditions, occurred during the last 300 kyr of the Maas…
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