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Showing 11451 to 11500 of 22070 works
The Arctic Ozone Hole in March 2020 and Its Seasonal Prediction in CFSv2: A Comparative Study with the 1997 and 2011 Ar…
Using reanalysis data, observations, and seasonal forecasts, the March Arctic ozone hole events in 1997, 2011, and 2020 and their predictability are compared. All of the three ozo…
A Multi-Scale Dynamical Analysis of the Saharan Dust Outbreak Towards the Cape Verde in Early November 2017
On 13 November 2017, a strong continental-scale Saharan dust outbreak was observed in satellite imagery over Mindelo, Cape Verde, located about 650 km off the coast of Senegal in …
How can we improve the driving of the Quasi-Biennial Oscillation in climate models?
The Quasi-Biennial Oscillation (QBO) of zonal-mean zonal winds in the tropical stratosphere is a conspicuous feature of the Earth climate. Its influence virtually extends to the w…
Semidiurnal currents in the Arctic Ocean's eastern Eurasian Basin
In the Arctic Ocean, semidiurnal-band processes including tides and wind-forced inertial oscillations are significant drivers of ice motion, ocean currents and shear contributing …
Atmospheric Dynamics of a Saharan Dust Outbreak over Mindelo, Cape Verde Islands: Multi-scale Observational Analyses an…
We investigate the synoptic precursors to the Harmattan wind and dust frontogenesis during the high impact Saharan dust outbreak over the Cape Verde Islands on 13 November 2017. W…
Measured ice nucleating particle concentrations improve the simulation of mid-level mixed-phase clouds over the high-la…
Climate models exhibit major radiative biases over the Southern Ocean owing to a poor representation of mixed-phase clouds. This study uses the remote-sensing dataset from the Mea…
Temporal variation and frequency dependence of ambient noise on Mars from polarization analysis
We applied a polarization analysis of InSight seismic data to estimate the temporal variation and frequency dependence of the Martian ambient noise field. Low-frequency (<1 Hz) P-…
Magma-fluid interactions beneath the Akutan Volcano in Aleutian Arc based on the results of local earthquake tomography
Akutan Island hosts a volcano considered as one of most active in the Aleutians Arc. Besides the regular eruption activity, Akutan in 1996 experienced a remarkable seismic unrest …
Unsupervised Distribution Learning for Lunar Surface Technosignature Detection
In this work we show that modern data-driven machine learning techniques can be successfully applied on lunar surface remote sensing data to learn, in an unsupervised way, suffici…
In-situ Visualization of Flow Mechanisms in Macroporous Soils using 4D X-Ray Computed Tomography
Transfer of mass between macropores and the soil matrix is an important control on flow and solute transport in the vadose zone. Few empirical techniques are available to explicit…
Understanding the Subseasonal Modulation of Moisture Transport over the Indian Monsoon Domain
The subseasonal modes of integrated water vapor transport (IVT) over the Indian Summer Monsoon (ISM) domain were examined and their association with different modes of ISM precipi…
Geostationary Lightning Mapper (GLM) Observations of the Brightest Lightning in the Americas
Two years of Geostationary Lightning Mapper (GLM) science data are used to document the brightest lighting flashes observed on the Americas continent. The most radiant optical lig…
Spatial and temporal variability of iodine in aerosol
In this work we describe the compilation and homogenization of an extensive dataset of aerosol iodine field observations in the period between 1963 and 2018 and we discuss the spa…
Emerging Spatiotemporal Patterns of Trends of Extremes in Indian Summer Monsoon
Understanding spatiotemporal patterns and trends of Indian Summer Monsoon extremes have always been an important task mostly because the impacts of extreme events have an enormous…
Detection, analysis and removal of glitches from InSight's seismic data from Mars
The instrument package SEIS (Seismic Experiment for Internal Structure) with the three very broadband and three short-period seismic sensors is installed on the surface on Mars as…
Revisiting the Pan Evaporation Trend in China From 1988-2017
Pan evaporation decrease has been reported worldwide over them past decades. A recovery trend, even an increasing pan evaporation trend, has been recently found. Remarkably, most …
Heliospheric Ionization Rates Over Solar Cycle 24
Studying of solar ionizing environment for the interstellar plasma inside the heliosphere is an unavoidable aspect of the interpretation of the full solar cycle of IBEX observatio…
Spatiotemporal reconstruction of free surfaces for underwater bedform inference
Underwater bedforms in a flow have been shown to cast free-surface signatures that carry important information about these bedforms thus allowing for a novel non-intrusive methodo…
Going beyond the spreadsheet - developing Best Practices in ‘long-tail’ environmental data curation and publishing
The research data repository of the Environmental Data Initiative (EDI) is a signatory of the FAIR Data Principles. Building on over 30 years of data curation research and experie…
The Impacts of the Geographic Distribution of Manufacturing Plants on Groundwater Withdrawal in China
The overexploitation of groundwater in China has raised concern as it has caused a series of environmental and ecological problems. However, far too little attention has been paid…
A retrospective and prospective examination of the 1960s U.S. Northeast Drought
As the most severe drought over the Northeastern United States (NEUS) in the past century, the 1960s drought had pronounced socioeconomic and natural impacts. Although it was foll…
Review of the precise orbit determination for Chinese lunar exploration projects
China’s lunar exploration missions have developed and progressed for more than 13 years. In these missions, Precise Orbit determination (POD) guarantees successful execution of Ch…
Dependence of Pine Island Glacier Ice Shelf Basal Melt Rates on Subgrid-Scale Parameterizations of Mixing
Pine Island Glacier Ice Shelf (PIGIS) is melting rapidly from beneath due to the circulation of relatively warm water under the ice shelf, driven primarily by buoyancy of the melt…
Analyzing slippage coefficients and intrinsic permeabilities of dissimilar Indian coals considering their pore-size dis…
Gas transport in dominantly microporous rocks such as coal, shale is significantly controlled by Klinkenberg or slippage effect at low reservoir pressures. Pore size fractions of …
On the interaction of multiple monsoon lows that produce large-scale heavy rainfall
In recent years, India has been increasingly experiencing widespread flooding induced by large-scale extreme rainfall events (LEREs). These events are mainly associated with the m…
Seeing Through the Atmosphere of Venus: What’s on the Surface? Key points
The exploration of the surface geology of Venus has been hampered by its inhospitable conditions and thick and opaque atmosphere. Fundamental properties, such as crustal compositi…
Spatial extent of concurrent extremes over India and its teleconnection to climate indices
Concurrent temperature and precipitation extremes during Indian summer monsoon generally have signicant effects on agriculture, society and ecosystems. Due to climate change, freq…
Effects of Lateral Inhomogeneity and Non-hydrostatic Pre-stress of Earth on Tidal Gravity
Tidal theory for a three-dimensional Earth model stipulates that non-hydrostatic pre-stress arises from the transition from a spherically-symmetrical model to an asymmetrical mode…
Sea Surface Salinity Seasonal Variability in the Tropics from Satellites, Gridded in situ Products and Mooring Observat…
Satellite observations of sea surface salinity (SSS) have been validated in a number of instances using different forms of in situ data, including Argo floats, moorings and gridde…
Machine Learning Predicts the Timing and Shear Stress Evolution of Lab Earthquakes Using Active Seismic Monitoring of F…
Machine learning (ML) techniques have become increasingly important in seismology and earthquake science. Lab-based studies have used acoustic emission data to predict time-to-fai…
Evolution of thermal crystal zonations and their heterogeneity in crystal populations during magma cooling
Crystal zonations provide valuable snapshot of the dynamic changes within a magma reservoir. However, crystal zonations are often heterogeneous down to the hand-sample scale, such…
Late Quaternary Dust, Loess and Desert Dynamics in Upwind Areas of the Chinese Loess Plateau
As a key global climate and dust archive, the nature of Chinese loess deposition remains debated. We investigate chronostratigraphic variability of eolian deposits in upwind regio…
Geophysical Implications of \textit{tresino} formation: a narrative review
Recent understandings regarding \textit{tresinos} in laboratory experiments and geophysical observations represents a new paradigm for Earth’s energy generation as well as a new d…
Recirculation of Plasmasphere Material During a Storm Time Event
The fate of Plasmasphere material once it is drained out of the plasmasphere through a plume is unknown. One of two things may happen to the vented plasmasphere material. It can b…
The Mid-Pleistocene and the Pliocene-Pleistocene transitions, clues of the resonance of the climate system in subharmon…
How variations in Earth's orbit pace the glacial-interglacial cycles of the Quaternary are probably one of the greatest mysteries of modern climate science. Supposing coevolution …
Anthropogenic iron deposition alters the ecosystem and carbon balance of the Indian Ocean over a centennial timescale
Phytoplankton growth in the Indian Ocean is limited by nitrogen and phosphorus in the north and by iron in the south. Increasing anthropogenic atmospheric deposition of nitrogen a…
Comment on the paper “Characteristic time scales of decadal to centennial changes in global surface temperatures over t…
In their paper, Le mouël et al, (2019) argued that over the past 150 years “most of the variability of surface temperatures could be natural and primarily controlled by the Sun”. …
A Survey of Venus Shock Crossings Dominated by Kinematic Relaxation
Collisionless shocks are one of the most effective particle accelerators in the known Universe. Even low Mach number shocks could have a significant role in particle heating and a…
Differential exhumation of the Eastern Cordillera in the Central Andes: Evidence for south-verging backthrusting (Abanc…
Located at the northern tip of the Altiplano, the Abancay Deflection marks abruptly the latitudinal segmentation of the Central Andes spreading over the Altiplano to the south and…
Thermo-elastic response of the Juno spacecraft’s solar array/magnetometer boom
Juno was inserted into a highly elliptic, polar, orbit about Jupiter on July 4th 2016. Juno’s magnetic field investigation acquires vector measurements of the Jovian magnetic fiel…
Estimation of Global Scale Carbon Fluxes Using Maximum Likelihood Ensemble Filter
Inverse modelling method named Maximum likelihood Ensemble Filter (MLEF) was used to estimate gridded surface CO fluxes using continuous, flask and Comprehensive Observation Netwo…
Modelling the Thermal Structure and Circulations of Lake Nam Co, Central Tibetan Plateau
A three-dimensional (3-D) hydrodynamic model based on Princeton Ocean Model (POM) and a one-dimensional (1-D) lake model are applied to simulate the thermal structure and circulat…
Impacts of the assimilation of satellite sea surface temperature data on estimates of the volume and heat budgets of th…
The different mechanisms controlling the heat budget of the North Sea are investigated based on a combination of satellite sea surface temperature measurements and numerical model…
A Middle Crustal Channel of Radial Anisotropy Beneath the Northeastern Basin and Range
A challenge in interpreting the origins of seismic anisotropy in deformed continental crust is that composition and rheology vary with depth. We investigated anisotropy in the nor…
Surface Kuroshio Intrusion Evidenced by Satellite Geostrophic Streamlines: Algorithm and Seasonal variations
Using long-term satellite altimeter data, a new streamline-based algorithm is developed to identify the Kuroshio intrusion types and describe the seasonal variations of related dy…
The Prevalence and Significance of Offset Magma Reservoirs at Arc Volcanoes
Determining the spatial relations between volcanic edifices and their underlying magma storage zones is fundamental for characterizing long-term evolution and short-term unrest. W…
Euphotic zone metabolism in the North Pacific Subtropical Gyre based on oxygen dynamics
We report in situ rates of gross oxygen production (GOP), community respiration (R), and net community production (NCP) in the North Pacific Subtropical Gyre derived from mixed la…
Mechanical tomography of a volcano plumbing system from GNSS unsupervised modeling
Identification of internal structures in an active volcano is mandatory to quantify the physical processes preceding eruptions. We propose a fully unsupervised Bayesian inversion …
Quantifying Dynamical Proxy Potential through Shared Adjustment Physics in the North Atlantic
Oceanic quantities of interest (QoIs), e.g., ocean heat content or transports, are often inaccessible to direct observation, due to the high cost of instrument deployment and logi…
The Diffuse Auroral Eraser
The source of diffuse aurora has been widely studied and linked to electron cyclotron harmonic (ECH) and upper-band chorus (UBC) waves. It is known that these waves scatter 100s o…
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