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Showing 11851 to 11900 of 22070 works
Effective radiative forcing in a GCM with fixed surface temperatures
Effective radiative forcing (ERF) is evaluated in the ACCESS1.0 General Circulation Model (GCM) with fixed land and sea-surface-temperatures as well as sea-ice. The 4xCO2 ERF is 8…
The Climate Literacy and Energy Awareness Network (CLEAN)
It is important that we prepare tomorrow’s scientists, decision makers, and communities to address the societal impacts of a changing climate. In order to respond to, manage, and …
Prevalence of shallow low-frequency earthquakes in the continental crust
Low-frequency earthquakes (LFEs) are categorized as slow earthquakes whose spectral power is concentrated at 1–4 Hz. While the tectonic LFEs along megathrust boundaries occur as s…
A New Methodology to Process the Total Solar Irradiance observations Using Machine Learning and Data Fusion
Across the last decades, various space missions have measured thetotal solar irradiance (TSI) such as the Variability of Irradiance andGravity Oscillations (VIRGO) experiment on t…
Characteristics of two-azimuth seismic ionospheric disturbances following the 2020 Jamaica earthquake from GPS observat…
Earthquakes often occur and may induce the ionospheric disturbance. In order to understand the generation and process of the earthquake, the seismic ionospheric disturbance (SID) …
A Distinct Atmospheric Mode for California Precipitation
The hydrologic cycle in California is strongly influenced by wet season (November to April) precipitation. Here, we demonstrate the existence of an influential mode of North Pacif…
Experimental investigation of Apollo 16 “Rusty Rock” alteration by a lunar fumarolic gas
The Apollo 16 sample 66095, named „Rusty Rock”, is enriched in volatile and moderately volatile elements. The impact melt breccia is characterized by the abundant occurrence of Fe…
Rapid reconfiguration of the Greenland ice sheet margin
The rapid acceleration of Greenland Ice Sheet mass loss over, particularly the last two decades, is well documented.However, limits in early remote sensing restricted the details …
Did the COVID-19 Crisis Reduce Free Tropospheric Ozone across the Northern Hemisphere?
Throughout spring and summer 2020, ozone stations in the northern extratropics recorded unusually low ozone in the free troposphere. From April to August, and from 1 to 8 kilomete…
The flight of impact craters based on paleo-positions and its unrestrained latitudinal distribution
Earth’s impact craters were analyzed to know the paleo-positions, distance and displacement they have undergone due to plate tectonics. Further, we have verified whether there is …
Distributed Acoustic Sensing (DAS) for natural microseismicity studies: A case study from Antarctica
Icequakes, microseismic earthquakes at glaciers, offer critical insights into the dynamics of ice sheets. For the first time in the Antarctic, we explore the use of fibre optic ca…
Accelerating the Gabor Transform with a GPU for SAR Image Compression
The Gabor transform can be utilized in an algorithm for compression due to its ability to allow the user to isolate high frequency information to filter. This transform can be imp…
LIP flows may not have been as thick as they appear
Large Igneous Provinces (LIPs) are among the greatest magmatic events in Earth history withvolumes in excess of ∼500,000 km 3 of predominantly basaltic lavas covering hugecontinen…
The Blob and Queen Charlotte: Predicting Ocean Properties in an Upwelling System during Anomalous Conditions
From 2014 to at least 2018, ecosystem health in the eastern boundary upwelling system along the west coast of North America was significantly impacted by a combination of a marine…
Semi-supervised Data-driven Surface Wave Tomography using Wasserstein Cycle-consistent GAN: Application on Southern Cal…
Current machine learning based shear wave velocity (Vs) inversion using surface wave dispersion measurements utilizes synthetic dispersion curves calculated from existing 3-D velo…
Towards a multi-platform assimilative system for North Sea biogeochemistry
Oceanography has entered an era of new observing platforms, such as biogeochemical Argo floats and gliders, some of which will provide three-dimensional maps of essential ecosyste…
Initial Efforts Toward Coordinated Community Data Processing to Accelerate the Growth of Publicly Available Bathymetric…
The Global Multi-Resolution Topography (GMRT) Synthesis is an elevation model that includes curated deep-water multibeam bathymetry data at ~100 m resolution covering more than 9%…
At the end of the rainbow -- Scientific Colour Maps for science and society
The visual representation of data is at the heart of science. From weather forecasts, to hazard maps, to the topography of planets, the choice of colors is critical to conveying i…
Constraining Jumps in Density and Elastic Properties at the 660 km Discontinuity using Normal Mode Data via the Backus-…
We apply the Backus-Gilbert approach to normal mode center frequency data, to constrain jumps in P, S, bulk-sound speed and density at the “660” discontinuity in the earth’s mantl…
Quantfication of the pelagic primary production beneath Arctic sea ice
In high-latitude environments such as the Arctic Ocean, phytoplankton growth is strongly constrained by light availability. Because light penetration into the upper ocean is atten…
Exploring the occurrence rate of mesosphere summer like echoes with Digisonde at Tromsø
The radar echoes from the polar summer mesopause are observed simultaneously with Digisonde, Dynasonde, and European Incoherent Scatter Scientific Association (EISCAT) very-high-f…
Updated Perspectives and Hypotheses on the Mineralogy of Lower Mt. Sharp, Mars, as seen from Orbit
Previous studies have shown that Mt. Sharp has stratigraphic variation in mineralogy that may record a global transition from a climate more conducive to clay mineral formation to…
An assessment of the temporal variability in the annual cycle of daily Antarctic sea ice in the NCAR Community Earth Sy…
Understanding the variability of Antarctic sea ice is an ongoing challenge given the limitations of observed data. Coupled climate model simulations present the opportunity to exa…
Smartrock transport during snowmelt floods: Discharge controls on rest scaling from seconds to seasons
We quantify how changes in natural flood discharge control bedload rest time distributions and may influence particle diffusion through mountain river networks. We embedded accele…
On the Burridge and Knopoff Model and the Theoretical Seismicity
In the mid-sixties of the 20 th century, a seismicity one-dimensional model, based on a spring system with friction, was presented by the two authors mentioned in the title. Throu…
InterCarb: A community effort to improve inter-laboratory standardization of the carbonate clumped isotope thermometer …
Increased adoption and improved methodology in carbonate clumped isotope thermometry has greatly enhanced our ability to interrogate a suite of Earth-system processes. However, in…
Easy Access to Complex Analysis Tools for Climate Researchers and Climate Data End Users
Researchers and end users using climate data face a challenge when they analyze the data they need. Data volumes are increasing very rapidly, and the ability to download all neede…
Martian atmospheric CO 2 and pressure profiling with differential absorption lidar: System consideration and simulation…
This study explores a new concept of Martian differential absorption lidar operating at the 2-m CO2 absorption band for its atmospheric CO2 and pressure observations. For the con…
Global Patterns of Continental Uplift: Insights Inferred from Paleobiological Data
Vertical motions of Earth’s surface are used to inform almost all branches of the Earth Sciences, and central role in understanding geological, biological and climatic processes. …
Optical Spectra of Small-scale Sprite Features Observed at 10,000 fps
Spectra of small-scale sprite structures, downward and upward propagating streamers, glow, and beads, were recorded with a slit-less spectrograph at 10,000 frames per second (fps)…
Venus: A Thick Basal Magma Ocean May Exist Today
Basal magma oceans develop in Earth and Venus after accretion as their mantles solidify from the middle outwards. Fractional crystallization of the basal mantle is buffered by the…
Accelerated Greenland Ice Sheet Mass Loss under High Greenhouse Gas Forcing as Simulated by the Coupled CESM2.1-CISM2.1
The Greenland ice sheet (GrIS) has been losing mass in the last several decades, and is currently contributing around 0.7 mm sea level equivalent (SLE) yr-1 to global mean sea lev…
Long-term induced seismicity on the Mosha fault by the Damavand Volcano, N-Iran, Implications for the seismic hazard of…
Seismic history of the Mosha fault, the most important active fault of Eastern Tehran metropolis, and its relation to the activity of Damavand Volcano, the highest mountain of the…
The Neogene Indian Ocean Record of Asian monsoon Driven Ocean Currents and Winds from the Maldives (IODP Exp. 359)
The Maldives archipelago acts for over 25 myrs as a giant natural sediment trap in the eastern Arabian Sea. Drifts and periplatform deposits bear the record of environmental chang…
Global Ecosystem Demography Model (ED-global v1.0): Development, Calibration and Evaluation for NASA’s Global Ecosystem…
Climate mitigation and forest management require accurate information on carbon stocks, fluxes, and potential future sequestration potential. Previous large-scale estimates have s…
Evaluation of the Tropical Rainfall Measuring Mission (TRMM) 3B42 and 3B43 products relative to Synoptic Weather Statio…
The Tropical Rainfall Measuring Mission (TRMM) daily (3B42) and monthly (3B43) rainfall products are evaluated relative to synoptic weather station observations in Cameroon and ac…
A Success Story: Advancing Outage Prediction Modeling Capabilities for Decision Making
Every year millions of people in the US are affected by power outages, disrupting the economy and daily life. Many of these outages are caused by events such as strong winds, heav…
Storytelling to Accelerate Climate Solutions
Public health communication strategies, including entertainment-education, can effectively change human behavior, improving health outcomes from climate change. Tools from social …
Accelerating Trusted Product Access, Evaluation and Use to Support Community Lifelines
Satellite imagery to rapidly develop maps of historical flood hazard and current inundated areas over large spatial coverage is indispensable in supporting situational awareness f…
The unusual stratospheric Arctic winter 2019/20: Chemical ozone loss from satellite observations and TOMCAT chemical tr…
Satellite observations of relevant trace gases, together with meteorological data from ERA5, were used to describe the dynamics and chemistry of the spectacular Arctic 2019/20 win…
Shrub-associated thermokarst detection using high density UAV-based LiDAR
Light detection and ranging (LiDAR) technologies are changing the ways in which scientists research the Arctic. Unmanned aerial vehicle (UAV)-based LiDAR collects detailed structu…
PmagPy Online: Jupyter Notebooks, the PmagPy Software Package and the Magnetics Information Consortium (MagIC) Database
The Magnetics Information Consortium (MagIC), hosted at http://earthref.org/MagIC is a database that serves as a Findable, Accessible, Interoperable, Reusable (FAIR) archive for p…
Global ocean dimethyl sulfide climatology estimated from observations and an artificial neural network
Marine dimethyl sulfide (DMS) is important to climate due to the ability of DMS to alter Earth’s radiation budget. However, a knowledge of the global-scale distribution, seasonal …
The crust anisotropy of west Ordos block and its geodynamic implications
Based on the teleseismic records of the dense broadband seismic array, the crustal anisotropy parameters of the west Ordos block and its adjacent regions were determined with P wa…
Decrypting healed fault zones: How gouge production weakens the impact of fault roughness
Two key parameters control the localization of deformation and seismicity along and surrounding crustal faults: the strength and roughness of the preexisting fault surface. Using …
Characterizing the Potential Habitat of Ichthyoplankton in the Gulf of Mexico for Species with Contrasting Life Histori…
Potential habitat models have become an increasingly used method for characterizing fish larval habitat. Describing the potential habitat of fish larvae can yield insight into dis…
Time, hydrologic landscape and the long-term storage of peatland carbon in sedimentary basins
Peatland carbon may enter long-term storage in sedimentary basins preserved as either coal or lignite. To understand the process by which this happens requires extrapolation of ou…
Doubled the carbon flux as a result of increased fresh submarine groundwater discharge caused by half the “normal” snow…
Fresh Submarine Groundwater Discharge (FSGD) is an important pathway for the transport of water and materials from land to ocean, but changes in the transport may occur as snowfal…
Tropical Pacific-Wide Variability in Vertical Zooplankton and Micronekton Distributions Related to ENSO
Zooplankton and micronekton are key links in tropical Pacific food webs, which include tuna as top-level predators. Zooplankton and micronekton vertically migrate to deeper depths…
Stalling and Dissipation of a Near-Inertial Wave (NIW) in an Anticyclonic Eddy: Direct Determination of Group Velocity …
Nearly-Lagrangian observations from two EM-APEX velocity and density profiling floats on concentric trajectories determine profiles of ocean eddy vorticity and velocity, and the i…
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