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Showing 10301 to 10350 of 22070 works
A Data-intensive Approach for Evaluating Water-Energy-Land-Food Nexus at Multiple Scales
Satisfying global food demand places a significant burden on finite resources like water, energy, and land across the world. Ensuring sustainable food production requires an under…
Could road constructions be more disastrous than an earthquake in terms of landsliding?
Roads can have a significant impact on the frequency of mass wasting events in mountainous areas. However, characterizing the extent and pervasiveness of landslides over time rare…
1098: Integrating satellite data analysis into a water quality monitoring program
Water quality monitoring is an integral tool in the management of freshwater resources. It identifies trends in water quality and tracks the effects of anthropogenic influences su…
Automatic Auroral Boundary Determination Algorithm with Deep Feature and Dual Level Set
The morphology of the auroral oval is an important geophysical parameter that can be used to uncover the solar wind-geomagnetic field interaction process and the intrinsic mechani…
Embryonic rifting zone revealed by a high-density survey on the southern margin of the southern Okinawa Trough
Offshore northern Ishigaki-Jima Island, in the southern Okinawa Trough, offers outstanding opportunities to explore the rifting stage of a backarc system. We report the results of…
Statistical Forecasts for the Occurrence of Precipitation Outperform Global Models over Northern Tropical Africa
Short-term global ensemble predictions of rainfall currently have no skill over northern tropical Africa when compared to simple climatology-based forecasts, even after sophistica…
Evolving viscous anisotropy in the upper mantle and its geodynamic implications
Asthenospheric shear causes some minerals, particularly olivine, to develop anisotropic textures that can be detected seismically. In laboratory experiments, these textures are al…
A Post-2013 Drop-off in Total Ozone at a Third of Global Ozonesonde Stations: ECC Instrument Artifacts?
An international effort to improve ozonesonde data quality and to reevaluate historical records has made significant improvements in the accuracy of global network data. However, …
Marine heatwaves confirm cloud response to warming in global climate models
Marine heatwaves (MHWs) are events of abnormally warm sea surface temperatures (SSTs) that can have devastating impacts on marine ecosystems and coastal economies. The evolution o…
IS GEODETIC MEASUREMENT A USEFUL INDICATOR OF INTRAPLATE EARTHQUAKES?
The question of the reliability of GPS measurement as an index for intraplate seismicity is raised here. Geodetic measurement of slip rate along the Longmenshan Fault -a thrust st…
Accurate Simulation of Both Sensitivity and Variability for Amazonian Photosynthesis: Too Much to Ask
Causes of climate predictions’ uncertainty include wide spread in modeled gross primary productivity (GPP) for evergreen broadleaf forests. Deterministic predictions inherently la…
A cubesat mission concept for the remote sensing of the Martian atmosphere
The atmospheric measurements made by the six Mars orbiters in operation (as of July 2020) significantly improved our understanding of the Martian weather and climate. However, whi…
The Influence of Floodplain Channel Connectivity on Flood Hydrodynamics
High-resolution topographic data reveal that meandering river floodplains can contain complex floodplain-channel networks. However, the influence of this topography on flood initi…
Excitation of stratospheric planetary waves by the Asian high heating center
We studied the topographic heating center over the Tibetan and Persian plateaus that forms the Asian high to try to understand its effects on circulation in the stratosphere. The …
Towards consistent seismological models of the core-mantle boundary landscape
The dynamic topography of the core-mantle boundary (CMB) provides important constraints on dynamic processes in the mantle and core. However, inferences on CMB topography are comp…
Bath's law derived from magnitude distribution
The empirical Bath’s law is derived from the statistical Gutenberg-Richter distribution in magnitude difference of pairs of earthquakes. The derivation of the statistical Gutenber…
Microbial Community Structure in the Amazon River Plume
The Amazon River discharges more than 200,000 m3 s-1 into the Western Tropical Atlantic Ocean from May to June. The low salinity surface plume extends more than 1800 km from the m…
The birth of bubbles by spinodal decomposition: Solving the tiny bubble paradox
Energetic ash-producing volcanic eruptions are driven by the diffusive and decompressive growth of bubbles (mostly water) during ascent in a magma conduit. The spatial distributio…
Application of symmetric instability parameterization in the Coastal and Regional Ocean Community Model (CROCO)
As one kind of submesoscale instability, symmetric instability (SI) of the ocean surface mixed layer (SML) plays a significant role in modulating the SML energetics and material t…
A Thermal Model and the Hermean Hollows: Constraints on Plausible Volatiles Involved in Hollow Formation on Mercury
We propose a thermal-fluid system model for hollow formation. A subsurface heat source (typically impact-related) produces volatiles from LRM and drives them to the surface. Volat…
Local and remote causes of the recent North Atlantic cold anomaly: an adjoint sensitivity study
The mid-to-high latitude North Atlantic features cold temperature anomalies on interannual timescales. For example, in 2015 a region of open ocean southwest of Greenland reached a…
Japanese history of space weather research and Operation
Japanese space weather research and operation began in 1896 with research on radio propagation. LF, MF, and HF radio communication used to be important before the era of communica…
Manifestations of syn-eruptive fluid circulations on carbonate veins, Central Anatolian Volcanic Province
Although there are several attempts to compare the age distributions on travertines with episodes of surrounding volcanism, the correlation between the precipitation record of car…
A framework for estimating global-scale river discharge by assimilating satellite altimetry
Understanding spatial and temporal variations in terrestrial waters is key to assessing the global hydrological cycle. The future Surface Water and Ocean Topography (SWOT) satelli…
Iron, Copper, and Zinc Isotopic Fractionation in Seafloor Basalts and Hydrothermal Sulfides
Studies on the Fe, Cu, and Zn isotopic compositions of volcanic rocks and sulfides provide an important tool for understanding magmatic, hydrothermal, and alteration processes. In…
Numerical simulation-based clarification of a fluid-flow system in a seafloor hydrothermal vent area in the middle Okin…
Despite many studies on seafloor hydrothermal systems conducted to date, the generation mechanism of seafloor massive sulfide (SMS) deposits is not yet fully understood. To elucid…
Backarc lithospheric thickness and serpentine stability control slab-mantle coupling depths in subduction zones
A key feature of subduction zone geodynamics and thermal structure is the point at which the slab and mantle mechanically couple. This point defines the depth at which traction be…
Imaging the Deep Crustal Structure of Central Oklahoma using Stacking and Inversion of Local Earthquake Waveforms
The southern Granite-Rhyolite province contains a comprehensive record of lithospheric evolution in North America. During the last decade, increased seismicity along with improved…
A multi-hazards earth science perspective on the COVID-19 pandemic: the potential for concurrent and cascading crises
Meteorological and geophysical hazards will concur and interact with coronavirus disease (COVID-19) impacts in many regions on Earth. These interactions will challenge the resilie…
Performance Evaluation of UAVSAR and Simulated NISAR Data for Crop/Non- crop Classification over Stoneville, MS
Synthetic Aperture Radar (SAR) data are well-suited for change detection over agricultural fields, owing to high spatiotemporal resolution and sensitivity to soil and vegetation. …
A deep learning based estimate of aboveground forest carbon density in northeast China
Quantifying forest biomass is an important part of determining the regional carbon balance, but currently there is little knowledge regarding forest carbon storage at a high spati…
A Global Mean Dynamic Ocean Topography
The space-born geodetic temporal Mean Dynamic Topography (MDT) is obtained from the difference of altimetric Mean Sea Surface (MSS) $h$ and the geoid height $N$. With the geostrop…
A mechanistic model for lateral erosion of bedrock channel banks by bedload particle impacts
Bedrock rivers get wider by lateral erosion. Lateral erosion is widely thought to occur when the bed is covered by alluvium, which deflects the downstream transport of bedload par…
Lagrangian modeling of mixing-limited reactive transport in porous media: multi-rate interaction by exchange with the m…
The presence of solute concentration fluctuations at spatial scales much below the scale of resolution is a major challenge for modeling reactive transport in porous media. Overlo…
Improving Situational Awareness During Early Earthquake Response Using Existing Seismic Risk Models to Rapidly Estimate…
In the first several hours following an earthquake, municipalities are often forced to rely upon reports from first responders, reconnaissance along disrupted roadways by emergenc…
Atmospheric Water Vapor Budget and its Long-term Trend over the Tibetan Plateau
As rapid warming and consequent glaciers retreat across the Tibetan Plateau (TP), the problem about whether or not atmospheric water supply could alleviate the depletion of surfac…
The Southern Hemisphere Sudden Stratospheric Warming in September 2019 and its predictions in S2S Models
A sudden stratospheric warming (SSW) happened in September 2019 in the Southern Hemisphere (SH) with winds at 10hPa, 60°S reaching their minimum value on September 18. The evoluti…
An energetic view on the geographical dependence of the fast aerosol radiative effects on precipitation
By interacting with radiation, aerosols perturb the Earth’s energy budget and thus the global precipitation amount. It was previously shown that aerosols lead to a reduction in th…
Intermittent Slip along the Alto Tiberina Low-angle Normal Fault in Central Italy
The Alto Tiberina normal fault (ATF) in Central Italy is a 50 km long crustal structure that dips at a low angle (15-20◦). Events on the fault plane are about ten times less frequ…
Mineral-melt partitioning of redox-sensitive elements
Elements with variable valence state (i.e. redox-sensitive) often show contrasting mineral/melt partition coefficients as a function of oxygen fugacity (fO2) in magmatic systems. …
Simulating the Ion Precipitation from the Inner Magnetosphere by H-band and He-band Electro Magnetic Ion Cyclotron (EMI…
During geomagnetic storms, magnetospheric wave activity drives the ion precipitation which can become an important source of energy flux into the ionosphere and strongly affect th…
A new approach to determine surface-wave attenuation from seismic ambient noise: numerical validation and application
We validate a new method to determine surface-wave attenuation from seismic ambient noise, both numerically and by application to recordings from a dense broadband array. We gener…
The effects of inductive electric field on the spatial and temporal evolution of inner magnetospheric ring current
Charged particles are observed to be injected into the inner magnetosphere region from plasma sheet, and energized up to high energies over short distance and time, during both ge…
Parametric study of prompt methane release impacts on global mean temperature
There have been important criticisms of IPCC recent reports for failing to communicate the dire nature of the current predicament facing civilization – so-called “scientific retic…
Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5
The planetary boundary layer height (PBLH) is a diagnostic field related to the effective heat capacity of the lower atmosphere and it constrains motion in this layer as well as i…
Very low-grade metamorphism of the Dezadeash flysch (Jura-Cretaceous): Constraints on the burial history of the Nutzoti…
Secondary mineral assemblages in sandstone and tuff indicate high temperature zeolite facies metamorphism; Kübler indicies of illite and Árkai indicies of chlorite in mudstone rec…
Uncertainty in CMIP6 climate change projections for the Australian monsoon is tied to hemispheric-scale changes
Climate change projections for the Australian monsoon have been highly uncertain in previous generations of coupled climate models. The new Coupled Model Intercomparison Project P…
Efficient method of moments for simulating atmospheric aerosol growth: model description, verification and application
The atmospheric aerosol dynamics model (AADM) has been widely used in both comprehensive air quality model systems and chemical transport modeling from road to global scales. The …
Modified Circumpolar Deep Water intrusions in Vincennes Bay, East Antarctica.
Antarctic Bottom Water (AABW) production supplies the deep limb of the global overturning circulation and ventilates the deep ocean. While the Weddell and Ross Seas are recognised…
Representativeness of FLUXNET sites across Latin America
Environmental observatory networks (EONs) provide information to better understand, model and forecast the spatial and temporal dynamics of Earth’s biophysical process. Consequent…
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