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Showing 13101 to 13150 of 22070 works
Development of a cross-scale and cross-sector adaptation assessment model integrating agriculture and water resources f…
The gap between governmental policy and actions taken by local officials often exists and this gap could be even more severe when it is climate adaptation policy. On the other han…
Significant variability in the δ44/40Ca of global carbonatites: implications for carbonate recycling, magma differentia…
Stable Ca isotopic composition (δ44/40Ca) of crustal carbonates are typically lighter than that of the bulk silicate Earth value (~1.05 ‰). Hence, δ44/40Ca of mantle-derived rocks…
QAnalySeries -- a cross-platform time series tuning and analysis tool
We introduce a computer program for time series tuning and analysis. The well known in paleo-climatic community program AnalySeries after Paillard et al. is restricted to the Mac …
Ground Penetrating Radar and Electrical Resistivity Methods to Characterize Soil-Bentonite Slurry Cutoff Wall and Detec…
Soil-bentonite slurry cutoff walls are used to prevent the movement of contaminated groundwater. Defects which reduce the overall efficacy of the wall may become present during co…
Wideband Microwave Radiometry for Remote Sensing of Lunar Regolith and Bedrock
The lunar surface consists of a regolith layer, i.e., fragmental and unconsolidated rock material of highly varied character, which covers the underlying bedrock. Understanding th…
The role of transient eddies and standing meanders in an idealized Southern Ocean model
We examine the role of transient and standing eddies in an idealized model with a Southern Ocean analog and two basins in the Southern hemisphere. We use the new MOM6 code base in…
Three-Dimensional Temperature and Wind Profiles Obtained Using UAV-Based Acoustic Atmospheric Tomography
The natural sound generated by an unmanned aerial vehicle is used in conjunction with tomography to remotely sense atmospheric temperature and wind profiles simultaneously. Sound …
Parse, simulation, and prediction of NOx emission across the Midwestern United States
Accurately constraining N emissions in space and time has been a challenge for atmospheric scientists. It has been suggested that 15N isotopes may be a way of tracking N emission …
Urban Air Quality: Case Study in the City of Brasília/DF, Capital of Brazil
Ambient air quality is an increasingly prominent environmental factor within the sustainable development of an urban territory, due to a growing awareness on the harmful and trans…
Morphological and chemical properties of Microtektite grains from Bay of Bengal (IODP Expedition: 354)
This study reports the presence of Australasian microtektites in a deep-sea core (U1452) retrieved during International Ocean Discovery Program (IODP) Expedition 354: Bengal Fan. …
Classifying ocean profiles with machine learning algorithms
The Baltic Sea is a shallow, stratified, brackish water sea with several subbasins. In this work, we analyzed CTD casts from HELCOM monitoring data of the Baltic Sea, data from FM…
Expert Crowdsourcing for Semantic Annotation of Atmospheric Phenomena
Weather extremes have gained great attention to the general public and policy makers recently. Extratropical cyclones, frontal systems and atmospheric rivers are central component…
Late Quaternary Fault-Related Folding, Uplifted Paleoshoreline, and Liquefaction Structures: Clues About Transpressiona…
The Enriquillo-Plantain Garden Fault (EPGF), one of two left-lateral transforms that define the Caribbean-North American plate boundary in Haiti, plunges beneath Lake Azuei in the…
Role of MOC on Ancient Climates / Implications for Anthropogenic Climate Change
Our increasingly robust history of ancient climates indicates that high latitude glaciation is the ultimate product of an episodic cooling trend that began about 100-million years…
Rapid Assessment of Fuel Load Using the GLOBE Observer Fire Fuel App
Forests are becoming drier due to a warming climate thus increasing the risk of wildfires. In recent years, wildfires have grown larger and more severe. In the U.S., over 80% of w…
Dependence of Interplanetary Coronal Mass Ejection Magnetic Properties on Their Solar Sources
Several studies suggest that magnetic reconnection plays an essential role to generate and accelerate most of the erupting coronal magnetic flux ropes such as coronal mass ejectio…
Ecologic and Biogeographic Insights from Ostracoda Distributions in the Chukchi Sea from 2009 through 2017
Chukchi Sea benthic ostracode assemblages collected during a research cruise aboard the USCGC Healy in 2017 are compared to collections from past years, primarily 2009 and 2010, w…
An empirical orthogonal function analysis of ocean shoreline location on the Virginia barrier islands
Shoreline change along the Eastern Atlantic shore of Virginia has been studied for the individual barrier islands but not as an integrated system. This study combines the Atlantic…
Elucidating microbial species-specific effects on organic matter transformation in marine sediments
Microbial transformation and decomposition of organic matter in sediments constitutes one of the largest fluxes of carbon in marine environments. Mineralization of sedimentary org…
Impurity of Sulfur Layers and Magmatic Gas Scrubbing: Implications for Gas Monitoring
The evidence of bodies of elemental sulfur (S ) beneath acid crater lakes at the summit of composite active volcanoes has been recognized several decades ago (Oppenheimer and Stev…
Using Online Dialogues to Connect Local Leaders and Climate Experts: Methods, Feedback and Lessons Learned from the Res…
Inclusive, multi-stakeholder dialogue, participatory planning and actionable science are necessary for just and effective climate resilience outcomes. How can we support that in p…
Northern Atlantic hurricanes possible connections with receded tides in Southern Brazilian and Uruguay Coast.
Harvey was formed around 17 August with maximum winds 40 miles/hour. At the moment, Irma formation started on 20 August faster becoming a hurricane category five. Some days before…
Moving Towards Sustainable Land Management in the Chesapeake Bay Through Novel Engagement Strategies
Each state and district within the Chesapeake Bay watershed has cooperated with the Chesapeake Bay Program (CBP) to develop local Watershed Implementation Plans (WIPs) that identi…
Ground Penetrating Radar Data Processing and Visualization using GPRPy
Allowing near-surface geophysics students to learn ground penetrating radar (GPR) data processing through hands-on exercises poses a challenge because of the high cost of professi…
Satellite Year-Round Methane Measurements for the Arctic: Towards Elucidation of Methane Growth After 2014
On decadal timescales, the greenhouse gas methane (CH4) is ~100 times more potent than carbon dioxide. Its abundance is increasing, many of its sources are temperature dependent. …
Shallow magma diversions during explosive maar-diatreme eruptions in mafic volcanic fields
Maar-diatremes are inverted conical structures formed by subterranean excavation and remobilization of country rocks during explosive volcanism and common in mafic volcanic fields…
Exploring the relation between backprojection images and earthquake source processes
Backprojection (BP) of teleseismic P waves is a widely-used method to study the evolution of earthquake radiation and is particularly effective for large earthquakes. We can harne…
Sub-solar electron temperatures in the lower Martian ionosphere
Martian sub-solar electron temperatures obtained below 250 km are examined using data obtained by instruments on the Mars Atmosphere Evolution Mission (MAVEN) during the three sub…
The First Northern Hemisphere High-Resolution Holocene Methane Record Reveals a Centennial Variability
We present the first Northern Hemisphere high-resolution Holocene methane (CH4) record obtained from the Renland Ice Cap (ReCAP) – 71.3N 26.6W 2300 m a.s.l. in 2015. The total len…
Critical role of snow on sea ice growth in the Atlantic sector of the Arctic Ocean
During the Norwegian young sea ICE (N-ICE2015) campaign, which took place in the first half of 2015 north of Svalbard, a deep winter snow pack (50 cm) on sea ice was observed, tha…
Climate change impact on America´s native grains production
How does climate change affect the production of native Grains of America? There is an impact of climate change on rain-fed crops productivity and its association with alimentary …
Production of globally uniform ISCCP Convection Tracking (CT) dataset and preliminary analysis results
The International Satellite Cloud Climatology Project (ISCCP)’s Convection Tracking (CT) database was designed to track the evolution of deep convective cloud systems throughout t…
Meteorite Impact “Earthquake” Features (Rock Liquefaction, Surface Wave Deformations, Seismites) from Ground Penetratin…
Densely spaced GPR and complex resistivity measurements on a 30,000 square meters site in a region of enigmatic sinkhole occurrences in unconsolidated Quaternary sediments have fe…
Forest amount affects soybean productivity in Brazilian agricultural frontier
Over the past three decades, large tracts of tropical forests have been converted to crop and pasturelands across southern Amazonia, largely to meet the increasing worldwide deman…
Change of ENSO characteristics in response to global warming
By using datasets of HadISST monthly SST from 1895 to 2014 and 600-year simulations of two CESM model experiments with/without doubling of CO2 concentration, ENSO characteristics …
Dynamic Likelihood Approach to Filtering
A Bayesian data assimilation scheme is formulated for advection-dominated or hyperbolic evolutionary problems, and observations. It uses the physics to dynamically update the like…
Southern Ocean Origin of Multidecadal Variability in the North Brazil Current
The North Brazil Current transport displays a pronounced multidecadal variability with about a 7 Sv peak-to-peak amplitude. Although it has been suggested that this variability is…
Better modeling of root-soil interactions by explicit representation of soil hardness
The vertical distribution of plant roots in the soil profile is a key trait modulating plant contributions to soil carbon storage, drought and nutrient stress resistance, yield, a…
Deep Scattering Layers at the Svalbard Gateway to the Arctic Ocean.
As part of the Norwegian SI-ARCTIC Program, in late summer of 2014 and 2015 acoustic data (18, 38 and 120 kHz) for the estimation of the distribution and abundance of zooplankton …
Insights into the collapse of Kīlauea caldera using seismicity and infrasound
The 2018 eruption of Kīlauea Volcano included caldera collapse at the summit of the volcano that was well recorded by a network of both permanent and temporary seismometers and in…
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…
Empirically estimated electron lifetimes in the Earth’s radiation belts: 1. Observations
We use measurements from NASA’s Van Allen Probes to calculate the decay time constants for electrons over a wide range of energies (30 keV - 4 MeV) and values ( = 1.3 - 6.0) in th…
Balloon-borne Measurements of the Greenhouse Effect by Water Vapor
Atmospheric balloon soundings have been made since the end of the 19th century. In recent decades, specific upper-air radiosonde measurements have become important for climate mon…
Strontium and uranium isotopes from lacustrine carbonates as a paleohydrologic tracer in arid wetlands: An example from…
The combination of strontium (87Sr/86Sr) and uranium (234U/238U) isotopes is an especially useful tool to track and quantify mixtures of water sources in arid wetlands, where chem…
A Deep Learning Approach for Recovering Missing Time Series Sensor Data
Wireless sensor networks are increasingly important in monitoring water quality changes. High frequency monitoring can be used to gather water quality information, identify existi…
HyperRail: Modular, 3D Printed, 1-100 meter, Programmable, and Low-cost Linear Motion System for Imaging and Sensor Sui…
Reliable, accurate, and affordable linear motion systems for agricultural applications are currently not easily accessible due to their elevated cost. Most systems available to th…
Mid-Piacenzian (Pliocene) Marine Paleoenvironments of the North Atlantic Region
The Piacenzian (Late Pliocene) represents a natural laboratory within which frequency and magnitude of environmental changes during a period of past global warmth can be analyzed,…
Spatio-temporal change of methane emission from reservoir
Authors present their investigation of spatial and temporal changes of methane emission from the surface of the Mozhaisk reservoir, situated 120 km to the west from Moscow, Russia…
Earth Science Data Visualization Through Augmented Coloring Books
The process of scientific visualization often involves making design choices- colors being one one them, to effectively communicate and highlight features in the data (e.g. high/l…
Utilizing Impact Experiments and 3D Scanning to Investigate Crater Scaling on M-Type Asteroids
The upcoming Psyche mission, part of the NASA Discovery program, will investigate the largest known M-type asteroid, 16 Psyche. Previous research has suggested that 16 Psyche may …
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