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Showing 12951 to 13000 of 22070 works
Assessment of Isoprene as a Possible Biosignature Gas in Exoplanets with Anoxic Atmospheres
Detecting biosignature gases on exoplanet atmosphere with near-future space telescopes is one of the most promising methods of detecting life beyond Earth. However, only a handful…
Organic Matter Occlusion of Mineral Surfaces as a Function of Mineral Weathering in Volcanic Ash Soils
In upland soils in humid climates, mineral stabilization of organic matter (OM) on millennial scales is often driven by the abundance of poorly crystalline, metastable chemical we…
Is low-temperature fission-track annealing in apatite a thermally controlled process?
We report a new series of experiments to explore the phenomenon of low-temperature annealing of fission tracks in apatite that feature a number of improvements over previous work.…
High Subcritical Water for the syn-Formation of Ferric Minerals and Molecules of Life
Considering the theme for AbSciCon 2019: “Understanding and Enabling the Search for Life on Worlds Near and Far”, it is worth to set the emphasis on ferric minerals and show that …
Expression of dsrAB in Desulfotalea psychrophila Subjected to Simulated Martian Conditions
For years the debate about the possible contamination of space and other planets with microbes from Earth has been a hot topic. Furthermore, the discovery of sulfate minerals on t…
Habitability Timeline of Venus: Past and Present
Venus is commonly known as the beautiful Evening Star of the night sky. Despite its bulk composition and size being similar (Interior ESI 0.98) to those of Earth, Venus is an extr…
Geospatial Energy Potential and Life Cycle Assessment of Nearshore Oscillating Water Column Systems Along the Eastern C…
Oscillating Water Column (OWC) systems are an iteration of terminator ocean energy technology which generate electrical energy from turbine torque induced by the compression of ai…
Use of NOAA Coral Reef Watch Ecoforecasts by Resource Managers During the 2014-2017 Global Coral Bleaching Event
Coral reefs are one of the most diverse ecosystems on Earth and provide significant ecological, economic, and societal benefits valued at approximately $9.8 trillion U.S. dollars …
My child just built a radio and we hear music!
Informal education can be a vital part of a person’s learning experience, thus it is important to continue studying its effectiveness and consider improvements. To that end, we st…
Assessing Integrated Agricultural Systems for Developing Food Security
Water erosion triggers the spending of billions of dollars a year to Brazil, as well as social and environmental issues. One of the strategies to minimise soil erosion and to fost…
2018 Mars Global Dust Storm – Effects of Airborne Dust and Particle Deposition on Mars Science Laboratory SAM (Sample A…
The Sample Analysis at Mars (SAM) instrument is a suite of instruments aboard the Mars Science Laboratory that landed on Mars in 2012. Recent measurements of SAM inlet cover actua…
An assessment of ensemble streamflowpredictions in the semi-arid Andes Cordillera
In the semi-arid extratropical Andes Cordillera, the seasonal snowpack acts as a natural water reservoir, releasing spring snowmelt runoff that accounts for more than 60 % of the …
Women in greening the city: solutions to more self-sufficient and resilient urban communities
Due to heavy urbanisation, approaches in greener cities are required. This is addressed by a number of initiatives, including seeing the city as an ecosystem, and the dialogue bet…
Persistent Identifiers as Boundary Objects: A socio-geographical view of standards development and implementation
In this poster, we begin to explore how socio-geographical considerations can inform the development of data infrastructure, notably Persistent Identifiers. PIDs have become large…
Communicating climate change science and solutions among communities of faith
In recent years, many researchers and advocates have noted the potential of religious groups and institutions to leverage their significant influence in favor of addressing enviro…
An assessment of the hydrological response of the Olivares River catchment during severe droughts and glacier retreat s…
In the semi-arid Andes Cordillera of central Chile (31–36°S), mountain glaciers are important reservoirs of freshwater, especially during droughts, contributing between 70 and 80%…
GPR imaging of lava tubes with the TubeX project
Lava tubes can offer protection for human crews and their equipment on other solar system bodies, in particular from radiation threats and extreme surface temperatures. Developing…
Data-Model Integration for Improved Prediction of River Corridor and Watershed Function
River corridors, the spatial domains around rivers in which river water interacts with surrounding sediment and rock, are important components of watersheds. They comprise extreme…
Terrestrial Evaporation and Moisture Drainage in a Warmer Climate
To determine hydrologic changes in a warmer climate, we impose precipitation and potential evaporation perturbations on hydrologic response functions constructed from precipitatio…
STARE for scalable unification of diverse data within Earth, Space, and Planetary Science
The variety of missions and observational campaigns in Earth and Space Science has led to a vast number of files containing low-level datasets with native, incompatible arrays. Wh…
Ocean Thermal Energy Conversion in 2018: Operations, Simulations and Policy
Policymakers are trying to cut carbon-dioxide emissions and have promoted generating electricity using solar, wind, wave converters and tidal turbines. But a larger need is to sup…
Development of a method for Arctic ice restoration using high-albedo reflective materials for localized surface treatme…
Context: A Focus on Arctic Ice Restoration Arctic ice loss has been linked to global climatic changes including droughts and wildfires and extreme winter weather. Since 1979 the A…
Utilizing neutron scattering techniques to measure carbon-in-soil distribution
Carbon distribution in soil is intricately linked to soil health. However, repeatable measurements of carbon distribution typically require destructive sampling and laboratory ana…
USGS Science Data Policies: An Evolving Culture of Data Management
In 2013, the Office of Science and Technology Policy (OSTP) issued a memorandum directing Federal agencies with over $100 million in annual research and development expenditures t…
Cumulative Emission quota of India to meet the climate targets: rationale of allowances
The year 2020 will mark the onset of Paris Agreement, whose main aim is to limit global warming to 2° C. This has set a limit on the amount of Greenhouse gases the world can still…
Paleosea-Level Records from Late Quaternary Coral Reef Terraces on Araki Island, Vanuatu; Comparison With Previous Resu…
New 230Th/238U ages for precisely leveled fossil corals from Araki Island, Vanuatu, generally corroborate MIS 3 and 4 paleosealevel estimates from the Huon Peninsula (HP), Papua N…
Analysis of the Topographic Correction in 3-D MagnetoTelluric Data
Magnetotelluric exploration is one of geophysical methods for investigating the Earth’s deep interior. This method measures natural geoelectric and geomagnetic field values. Imped…
A Word from Alpine Tundra: Watch Out, Forests Are Invading! – Spatial Detection of Alpine Treeline Ecotones in the West…
Human-mediated climate change over the past century has made significant impacts on global ecosystems and biodiversity including accelerating redistribution of the geographic rang…
Characterizing Mars' magnetotail topology with respect to the upstream interplanetary magnetic fields
The canonical picture of the magnetotail of unmagnetized planets consists of draped interplanetary magnetic fields (IMF) forming opposite-directed lobes, separated by the current …
Mining the IODP Database for Relationships Between Lithology and Physical, Chemical, and Magnetic Properties
During each International Ocean Discovery Program (IODP) expedition a vast array of data, typically amounting to hundreds of gigabytes to several terabytes of information, are col…
Rheo-optical analysis of natural sediments under continuous and oscillating shearing action
A modified version of the commercially available RheOptiCAD® was developed to examine the conformational changes and break-up of flocs in clay suspensions in microscopic detail, u…
Spatio-temporal variation of methane emission from reservoirs with the different water residence time
Increase in concentration in the atmosphere of greenhouse gases (GHG) is considered as one of the possible reasons of climatic changes. Recently all their possible anthropogenic s…
Stable Isotope Geochemistry of Coalbed Gas with Special Focus on CO2
Coalbed gas is generated during coalification process and remain in the coal as an adsorbed form. This paper discusses the mechanism of generation of coalbed gas and identificatio…
Evaporometer Upgrades: improved Weatherproofing and Accuracy in Real-Time Environmental Data Gathering
The original Evaporometer prototype was designed by the Openly Published Environmental Sensing (OPEnS) Lab at Oregon State University to remotely collect near real-time environmen…
Impact of cumulus parameterization options on clouds, ozone, and PM2.5 in regional- to urban-scale WRF-CMAQ simulations
The Community Multiscale Air Quality (CMAQ) model is a state-of-the-science chemical transport model (CTM) capable of simulating the emission, transport and fate of numerous air p…
Laboratory measurements of immersion freezing abilities of non-proteinaceous and proteinaceous biological particulate p…
Non-proteinaceous and proteinaceous biological aerosols are abundant within the atmosphere and have the potential to impact the climate through cloud and precipitation formation. …
Ocean acidification, a quantifiable process contributing to risk of atmospheric and oceanic oxygen depletion and so pos…
Every breath we take reminds us we require oxygen. Crucially, whilst there is wider research into the oceanic impact of climate change, including warming and acidification, and on…
Architecting a High-Demand Image Service for GOES-16
Traditionally, NOAA NESDIS has distributed GOES imagery as small sector images, usually a jpg or gif. With the launch of GOES-16, NESDIS has embraced a more modern approach to ser…
Spatiotemporal Analysis of Wind Extremes in Santa Barbara County, CA
Downslope and gusty winds in the lee of the Santa Ynez Mountains (SYM) greatly influence the Santa Barbara (SB) coast in California. These winds, known as ‘Sundowners’ due to thei…
The Predictive Capability of Conditioned Simulation of Discrete Fracture Networks using Structural and Hydraulic Data f…
Discrete fracture network (DFN) models provide a natural analysis framework for rock conditions where flow is predominately through a series of connected discrete features. Mechan…
Predictions of Martian Volcano-tectonic Seismicity from Extrapolation of 48 Years of Hawai'ian Earthquakes.
The NASA InSight mission, landing in late November 2018, promises to revolutionize our understanding of Martian interior structure via analysis of seismic data returned by the SEI…
Modelling airflow patterns in a man-made trough blowout
Natural coastal foredune systems often contain blowouts, through which beach sand is blown into the more landward dunes. Along many developed coasts, blowouts have long been consi…
Highlighting the Roles of Producers and Consumers in Land and Water use for Agricultural Production in Southern Amazonia
For decades, agricultural expansion in Southern Amazonia has relied on deforestation to increase the national and global supplies of cattle and soybean products. Research on the u…
Migration of ground penetrating radar (GPR) data to image the floor of lava tubes; TubeX project
Ground Penetrating Radar (GPR) is shown to be a successful tool in detecting tunnels and voids. Lava tubes are tunnel-like features in volcanic terrains that can be potential safe…
A New Procedure for Quick Estimation of Porosity and Density of Hydrate-bearing Sediments by Using Medical X-ray CT Sca…
Gas hydrates have been reported to exist in marine sediments from various parts of the world ocean. The hydrates start decomposing soon after recovery of the sediments through cor…
Sediment Budgeting as a Tool for Sustainable Sediment Mining: Case Study from a Bedrock River in Peninsular India
The spatio-temporal variability of river processes is governed by the balance between basin scale sediment supply and channel transport capacity. This balance is being altered by …
Can a drone equipped with a miniature methane sensor determine methane fluxes from an Alaskan wetland?
Methane fluxes are often studied using eddy covariance flux towers or chambers placed on the soil surface. These measurement techniques have improved our understanding of methane …
NEXRAD weather radar coverage and National Weather Service warning performance
Over 33,000 flash flood events recorded by the NOAA National Weather Service (NWS) between 2006 and 2017, after polygon warnings replaced county-wide warnings, are analyzed in ter…
The 2018 Kilauea Eruption along the East Rift Zone Is Becoming Voluminous Enough to Cause Substantial Global Warming Ju…
Throughout Earth history, extensive, sub-aerial, basaltic lava flows associated with continental rifting and hot spots have been contemporaneous with major global warming—the more…
Developing Forest Fire Danger index using NASA MODIS TERRA Near Real Time satellite datasets
Forest fire is a major ecological disaster, which has economic, social and environmental impacts on humans and also causes the loss of biodiversity. Forest officials issue the war…
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