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Showing 13751 to 13800 of 22070 works
PAR Measurements in the Gulf of Trieste (northern Adriatic Sea)
PAR (Photosynthetic Active Radiation) vertical profiles that were obtained from casts with the Sea and Sun MSS90 microstructure probe in the southern part of the Gulf of Trieste n…
Stochastic Pore Network Stitching for Pore-to-Core Upscaling of Two-Phase Flow in Heterogeneous Rocks
Physics of two-phase flows in heterogeneous rocks plays an important role in many applications such as oil and gas migration and geological sequestration of carbon dioxide. Althou…
Magnetic and thermal constraint on the spatial distribution of continental seismicity
Recent fast developments of satellite magnetic observations facilitate global Lithospheric Magnetic Field (LMF) modelling and their applications to subsurface tectonics. Here, the…
Ambient Seismicity on Europan Analogs using the Seismometer to Investigate Ice and Ocean Structure (SIIOS)
The Seismometer to Investigate Ice and Ocean Structure (SIIOS) project is exploring the science capabilities of seismometers in ocean world analog environments. Ocean worlds, such…
Fire and ice: Anak Krakatau triggers volcanic freezer in the upper troposphere
Volcanic activity occurring in tropical moist atmospheres can promote deep convection and trigger volcanic thunderstorms. Intense heating at ground surface and entrainment of mois…
Digital Zenith Camera for Vertical Deflection Determination: on the Way to 1 cm Precise Quasi-Geoid Model for Latvia
The digital zenith camera VESTA (VErtical by STArs) was designed by the Institute of Geodesy and Geoinformatics (GGI) of the University of Latvia and completed in 2016. Since that…
Safer_RAIN: a Fast-Processing DEM-Based Algorithm for Pluvial Flood Hazard Assessment Across Large Urban Areas
Urban areas (i.e. cities, towns and suburbs) provide a home to over 70% of the EU‑population, and this number is expected to exceed 80% by 2050 (Tapia et al., ECOL INDIC, 2017). T…
Modelling large-scale seasonal variations in water table depth over tropical peatlands in Riau, Sumatra
Water table depth (WTD) is the predominant biophysical control over the occurrence of peat and forest fires in tropical peatlands. In Indonesia, prolonged droughts caused by El-Ni…
Ecological drivers of phytoplankton bloom cycles in the Southern Ocean
Over the last ten years, satellite and geographically constrained in situ observations largely focused on the northern hemisphere have suggested that annual phytoplankton biomass …
Pesticide seed treatments containing neonicotinoids have limited effect on soil microbial community structure under dif…
Pesticide seed treatments (PST) which contain fungicides and insecticides are commonly used in agriculture; however, little is known about their effect on soil microbial communiti…
Contamination of Drilling Fluids on Wellbore Plugs
Gas leakage through wellbore micro-channels is a major challenging problem for well cementing and integrity. One of the reason that leads to weaker cementing is the drilling fluid…
Utilizing Satellite Based Observations and Physical Hydrological Modeling for Freshwater Ecosystem Health in The Lower …
This presentation will show an ongoing freshwater health assessment stemming from a partnership between the National Aeronautical and Space Agency (NASA) and Conservation Internat…
Mapping Modeled Exposure of Wildland Fire Smoke for Human Health Studies in California
Wildland fire smoke exposure affects a broad proportion of the U.S. population and is increasing due to climate change, settlement patterns and fire seclusion. Significant public …
Multi-lingual Jupyter notebooks for learning the Open Global Glacier Model
Glaciers are major contributors to global sea level change and regional freshwater resources. In light of the worldwide societal importance of glacier change, we see a need for ac…
Characterizing the Effects of Inhomogeneous Scene Illumination on the Retrieval of Greenhouse Gases from a Geostationar…
Previous studies done for the TROPOMI mission (e.g. Meister et al (2017), Hu et al (2016), Landgraf et al (2016)) has shown that inhomogeneous illumination within the field of vie…
Dynamic and Thermodynamic Renewal Processes in Greenland's Fjords
The connections between Greenland’s tidewater glaciers and the continental shelf waters are modulated by fjords that are geometrically complex with numerous modes of variability. …
Noise Characteristics of Operational Real-Time High-Rate GNSS Positions in a Large Aperture Network
Large earthquakes are difficult to model in real-time with traditional inertial seismic measurements. Several algorithms that leverage high-rate RT-GNSS positions have been propos…
Spin-orbital Tidal Dynamics and Tidal Heating in the TRAPPIST-1 Multiplanet System
We perform numerical simulations of the TRAPPIST-1 system of seven exoplanets orbiting a nearby M dwarf, starting with a previously suggested stable configuration. The long-term s…
Can we rely on machine learning to reveal short term precursors of volcanic activity on Mt. Etna?
Volcanic eruptions are usually not easily predictable and this poses a significant hazard not only for exposures to the local population but due to possible presence of tephra als…
Giving legs to handprint thinking: foundations for evaluating the good we do
In environmental management and sustainability there is an increasing interest in measurement and accounting of beneficial impact - as an incentive to action, as a communication t…
Forecasting harmful algal blooms over the coastal water, Charlotte County, Florida
Harmful algal blooms (HAB; Karenia brevis) occurrences have been reported from the coastal waters of Charlotte County in southwest Florida. We developed multivariate regression mo…
On the Hydrodynamics of Crystal Clustering
The formation of crystal clusters may influence the mechanical behaviour of magmas. However whether clusters form largely from physical contact in a mobile state during sedimentat…
Electric Grid Reliability Implications for a Near-Zero Emissions Energy System
Wind and solar energy technologies are, by their nature, variable. Variations in resource availability, based on weather patterns, occur on intra-day to inter-annual time scales. …
Depletion of the Southern High Plains Aquifer: Simulating the Effects of Conserving Irrigation Water through Reduced Ir…
Groundwater resources of the Southern High Plains/Ogallala Aquifer in Texas and New Mexico are being depleted due to groundwater mining for irrigation. Inevitably, resource deplet…
Water level monitoring in different regions of the U.S. using GNSS-Reflectometry
Accurate and seamless coastal water level observations are crucial for monitoring climate change, mean sea level, and storm surge. Although the water level changes have been measu…
Sustained Non-Photochemical Quenching Shapes the Seasonal Pattern of Solar-Induced Fluorescence at a High-Elevation Eve…
The Western US accounts for a significant amount of the forested biomass and carbon uptake within the conterminous United States. Warming and drying climate trends combined with a…
Rapid buildup of a magnetic flux rope during a confined X2.2 class flare
Magnetic flux ropes (MFRs) are believed to be one kind of fundamental structures in solar eruptions, of which the formation is being intensely studied. Here we report a rapid buil…
Geomagnetic field intensity in South America over the 500 years: New archeointensity results from South Brazil
Tracing the field in the past at the centennial and millennial timescale (i.e., the archeomagnetic timescale) is important in improving geomagnetic field models and also for field…
A three-dimensional numerical model of tectonic plates that develop due to a stress-history dependent rheology
We present a three-dimensional numerical model of tectonic plates that self-consistently develop in the convecting mantle. The viscosity depends on stress-history as well as tempe…
Climate of the Congo Basin: the state of our understanding, challenges and opportunities
The Congo Basin stands out as a convective hotspot and plays a crucial role in the Earth’s climate system by modulating the atmospheric circulation and carbon emissions caused by …
Machine-Learning-Driven New Geologic Discoveries at Mars Rover Landing Sites: Jezero Crater and NE Syrtis
A hierarchical Bayesian classifier is trained at pixel scale with spectral data from the CRISM (Compact Reconnaissance Imaging Spectrometer for Mars) images. Its utility in detect…
Effect of fault roughness on aftershock distribution and post co-seismic strain accumulation
We perform physics-based simulations of earthquake rupture propagation on geometrically complex strike-slip faults. We consider many different realization of the fault roughness a…
Urban Air Temperature Model Using GOES-16 LST and a Diurnal Regressive NeuralNetwork Algorithm
An urban air temperature model is presented using GOES-16 land surface temperature. The Automated Surface Observing System (ASOS) serves as ground truth air temperature for calibr…
Understanding Southern Ocean Cloud Controlling Factors on Daily Timescales in the Context of Extratropical Cyclones
Clouds and their associated radiative effects are a large source of uncertainty in global climate models. One region with particularly large model biases in cloud radiative effect…
Saturation-ratio Fluctuations from Scalar Transport in Moist Rayleigh-Bénard Convection: One-dimensional-turbulence sim…
A careful characterization of moisture fluxes and saturation-ratio statistics in atmospheric convection is significant for cloud microphysical processes and dynamics. The saturati…
Ionospheric energization, field-aligned transport, and escape at Jupiter
While Jupiter’s gravity strongly binds the neutral atmosphere to the planet, energization in the auroral region can lead to field-aligned upward transport and escape of electrons …
Physical principles that determine electric streamer parameters
We propose a new approach to unambiguous determination of parameters of positive and negative electric streamer discharges (streamers). We derive several relations between streame…
Bringing Art, Music, Theater and Dance Students into Earth and Space Science Research Labs: A New Art Prize Science and…
A new Arts/Lab Student Residence program was developed that brings artists into a research lab. Science and Engineering undergraduate and graduate students working in the lab desc…
Developing a Glacial Surface Model for Greenland to Improve the Projections of Surface Runoff
Over the past several decades, the Greenland Ice Sheet has been losing mass through a combination of increased surface runoff and accelerating ice flux to the ocean. Our understan…
M³: Towards Long-Term Acoustic Monitoring of Gas Emissions using Underwater Cabled Observatory Technology
Natural methane gas release from the seafloor is a widespread phenomenon that occurs at cold seeps along most continental margins. Since their discovery in the early 1980s, seeps …
Simulation of Dynamo Action Generated by a Precession Driven Flow.
Since many years precession is regarded as an alternative flow driving mechanism that may account, e.g., for remarkable features of the ancient lunar magnetic field [Dwyer 2011; N…
Anonymity in Survey Courses as Tool for More Diverse Engagement
It is not uncommon that students in introductory survey courses are reluctant to participate in verbal inquiry. In a survey submitted to students of CLIMATE 102, Extreme Weather, …
Semi-Analytical Models of Fracture Dissolution Including Roughness and Interporosity Fluid Exchange
Fracture dissolution in carbonate rocks is of great interest for the applications of CO2 geological storage and formation of conduits and caves in karst reservoirs. Taking into ac…
Heat exposure of U.S. agricultural workers in a warming climate
Heat has historically resulted in more mortality than any other severe weather-related phenomenon in the United States, with the U.S. Centers for Disease Control attributing more …
Using Machine Learning Techniques to Analyze Acoustic Doppler Current Profiler Data
Acoustic Doppler Current Profilers (ADCPs) are oceanographic tools that are capable of collecting large amounts of current profile data. Using unsupervised machine learning techni…
Variability of the marginal sea ice zone in the Nordic Seas in a 1/12° ocean model forced and coupled to the atmosphere
The marginal sea ice zone (MIZ) is a complex interface between the open ocean and the pack ice, where ocean-ice-atmosphere interactions are extremely complex. With a width of abou…
Sensitivity and Feedback Analysis of Spatio-Temporal Variability of Rainfall to Land Cover Change across the Amazon Bas…
Amazon Basin deforestation has been driven by agricultural expansion and other developments. Interactions between deforestation, fire, climate, and drought have led to changes in …
Electrokinetic Laboratory Methods for Permeability Characterization
We present preliminary results from an electrokinetic laboratory rock characterization approach, which uses electroosmosis and streaming potential to estimate permeability. The de…
Integrating In-Situ Observations with Process-Based Modelling of the Sea Ice Floe Size Distribution
The lateral size of sea ice floes is receiving increasing attention as an important variable for the polar climate system. We have developed a model for prognostic evolution of th…
Atmospheric responses to Arctic sea ice loss in a high-top atmospheric general circulation model
Rapid Arctic warming and sea ice decline in recent decades might have profound impacts on midlatitude weather and climate. This study uses a high-top atmospheric general circulati…
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