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Showing 13351 to 13400 of 22070 works
Nonlinear and time-dependent equivalent-barotropic flows with topography
Some oceanic and atmospheric flows may be modelled as equivalent-barotropic systems, in which the horizontal fluid velocity varies in magnitude at different vertical levels while …
Enhancing Australian Foundation Spatial Data Framework to support Australia's future
The Foundation Spatial Data Framework (FSDF) is a framework of ten national authoritative geographic data themes that supports evidence-based social-economic decision making acros…
Geochemistry of Mineral-Water Interactions in Basaltic Lava Caves as Earth Analogs (Screen 4)
Basaltic lava caves are important Earth analogs in our search for life on Mars and other planets. Terrestrial lava caves exhibit morphologically diverse secondary mineral deposits…
OPEnS Hub - A Real-Time Decentralized Internet Portal, Connecting Field Sensors to Google Sheets
Advancements in sensing technology have sparked a new age of data acquisition and transmission that continue to change the way we understand the world around us. In earth science,…
Seismic Imaging Methods for Description of Abandoned Mines
To prevent serious problems occurring in abandoned mines such as ground subsidence, it is commonly carried out to fill cavities with some materials. During or after the cavity-fil…
Why do drought indices overestimate the drought-related impacts of global warming - in models and in reality?
In global climate models, CO2-driven warming causes strong and very widespread mean drying trends in climatic wetness indices like the Palmer Drought Severity Index, Aridity Index…
An Operational EOP Series by Combination of GNSS & VLBI
The Earth orientation parameters (EOP), the regular products of IERS Earth Orientation Centre, are computed at daily bases by combination of EOP solutions by different astro-geode…
Spatio-Temporal LSTM Forecasting of Ozone Secondary Events
Given the dynamics of the atmosphere, the ozone hole is accompanied by episodes of exchange between the polar vortex and the mid-latitudes and the tropics (Bencherif et al., 2007)…
Rationalizing Systems Analysis for the Evaluation of Adaptation Strategies in Complex Human-Water Systems
Water resources management is a non-trivial process requiring a holistic understanding of the factors driving the dynamics of human-water systems. Policy-induced or autonomous beh…
Monitoring Dimensions of Biodiversity in a Mega-Diverse Region of Southern Africa: from Traits to Communities to Ecosys…
The Greater Cape Floristic Region (GCFR) of South Africa includes marine and terrestrial biomes with species diversity rivaling mega-diverse tropical rainforests in a compact area…
The signal correction of a CW-laser-outgoing Helium Lidar based on an area-array ICCD
A Helium Lidar system, which is being developed for measurements of metastable helium density in the thermosphere and exosphere, employs a CW 1083nm laser with power of 60W, a tel…
Importance of Heliophysics standards and metadata guidelines for effective data analysis
The Space Physics Data Facility (SPDF) has developed and/or leveraged standardized self-describing data formats, metadata for datasets and parameters, time conventions, and datase…
Particle Image Velocimetry Analysis for the Assessment of Bedload Sampling Using Helley-Smith
Excess sediment is one of the main agents of water pollution, affects the aquatic ecosystem and causes siltation problems in reservoirs and rivers. Bottom sediments are coarse and…
Towards structured coordination of sustained observations of Arctic change: An update from the Arctic Observing Summit …
Understanding, predicting, and responding to a rapidly changing Arctic requires sustained observations that capture variability and transformative change of the Arctic systems wit…
The Another Assimilation System for WRF-Chem (AAS4WRF): a new mass-conserving emissions pre-processor for WRF-Chem regi…
The Weather Research and Forecasting with Chemistry (WRF-Chem) community model have been widely used for the study of pollutants transport, formation of secondary pollutants, as w…
Using Remote Sensing to Estimate Exposures to Flaring from Unconventional Oil and Gas Operations
Unconventional extraction technologies including directional well drilling and high-volume hydraulic fracturing have led to a surge in domestic oil and gas production in the US ov…
HydroShare tools and recommended practices for sharing and publishing data and models in support of collaborative repro…
HydroShare is a domain specific data and model repository operated by the Consortium of Universities for the Advancement of Hydrologic Science Inc. (CUAHSI) to advance hydrologic …
3He and heavy ion enrichment in solar energetic particles as evidence for cyclotron resonances with linear waves
In this talk, I will draw distinction between linear plasma waves and strong turbulent fluctuations and argue general characteristics of 3He rich solar energetic particle events f…
Mangrove Growth Monitoring Using Multi-temporal UAV-LiDAR
Mangrove forests, occupying tropical and subtropical coastal areas, serve as coast protector, water filter, spot of attraction and an exceptional carbon reservoir. Despite these e…
Gaining a global perspective on the surface composition of Venus from orbit through near infrared observations -- with …
Venus is the most Earth-like of the terrestrial planets, though very little is known about its surface composition. Thanks to recent advances in laboratory spectroscopy and spectr…
Ionosphere vertical TEC calculated from GNSS receiver data in Lisbon: comparison with observations
We present the results of the analysis of the reliability of ionosphere TEC values produced by the GNSS receiver installed at the Lisbon airport (Portugal), since 2015. The instal…
Parametric estimation of neutral hydrogen density under charge exchange and quantification of its effect on plasmaspher…
The resonant charge exchange coupling between H+, H, O+ and O is a major driver of H+ and O+ transport between the plasmasphere and topside ionosphere. In this work, we present a …
Modelling climate change induced phenological trends and frost risks in Belgian fruit orchards
Apples and pears represent an important share of Belgium’s horticultural production but the sector has been subjected to a range of challenging meteorological conditions over the …
Numeracy among Under Represented Minorities in Community College Education
Numeracy is the ability to understand and interpret numbers. The numeracy skills are required and relevant across all disciplines and especially in STEM majors. The diverse group …
Storm surge modelling by Delft3D FM -- a case study in Shanghai area
The coupled Delft3D Flexible Mesh (D3D FM) - SWAN model with an unstructured grid has been developed recently to simulate storm surge and waves; and another open source model, Tel…
Short-term variability and the weather of the day in the lower thermosphere and ionosphere using a whole atmosphere mod…
Whole atmosphere models that fully capture the propagation of wave dynamics from lower to upper atmosphere are believed sufficient to reproduce the type of short-term variability …
Deciphering Volcanic Unrest through Forward-Modeled Monitoring Datasets
In the last decades, volcano monitoring capabilities have increased enormously, thanks to geochemical and geophysical airborne and surface measurements that have steadily improved…
A detailed crust to upper mantle structure: Comparison between Algerian and Alboran domains in the Western Mediterranean
We present a comparison of the detailed present-day crust to upper-mantle (400km) structure in the Western Mediterranean along two transects in Alboran and Algerian domains. The t…
Contemporary Environmental Changes over the Dry Land Belt of Northern Eurasia and Their Consequences
Our presentation represents a brief overview of recent climatic and environmental changes over the Dry Lands of Northern Eurasia. The Dry Land Belt (DLB) in Northern Eurasia is th…
Mass Balance of the Russian High Arctic Archipelago Between 2002 and 2017
We evaluate the mass balance of the Russia High Arctic Archipelago between April 2002 and August 2016 employing independent estimates obtained using time-variable gravity from the…
Temporal and Spatial Distribution of Iron Bound Organic Carbon in the Mississippi River Influenced Shelf Sediments
Continental shelves are important land-ocean interfaces where natural and anthropogenic processes, as well as sediment geochemistry regulate the sequestration of organic matter (O…
Collection and Analysis of Shear Strain Data of Polythermal Ice from Jarvis Glacier, Alaska
We seek to calibrate the flow law for polythermal ice through shear strain analysis. In a warming climate, increased melting of glaciers and ice caps play a big role in sea level …
Spatial Variability of offshore internal boundary layers
The growth of the marine internal boundary layer (MIBL, height ℎ𝑖 ) with the shore-normal distance 𝑥, is a topic of continuing interest because of its applications in coastal disp…
Impact of Spectroscopic and Atmospheric State Knowledge on Retrieved XCO2 and XCH4 Column Amounts from Laser Differenti…
In this work we extend previous studies by exploring the potential impact of spectroscopic knowledge along with atmospheric state knowledge on retrievals of carbon dioxide (XCO2) …
Multiple nutrients constrain fine root functioning in a lowland tropical rainforest: initial responses from a large-sca…
Phosphorus (P) is hypothesised to be the main nutrient limiting forest productivity in tropical forests, but more recent evidence suggests that multiple nutrients could regulate f…
Classification of caprock associated with salt diapirs
Caprock assemblages associated with salt bodies typically consist of a vertically zoned sequence in ascending order: anhydrite directly above the salt body, a transitional gypsum …
Structure-coupled 3-D imaging of magnetotelluric and wide-angle seismic reflection/refraction data with interfaces
Magnetotelluric (MT) and wide-angle seismic reflection/refraction surveys play a fundamental role in understanding the crustal rheology and lithospheric structure of the Earth. In…
Foraminiferal signatures of mass transport from the North-West Continental Shelf off Western Australia, IODP Expedition…
In 2015, Integrated Ocean Discovery Program Expedition 356 drilled along the margin off Western Australian to investigate the history of the Indonesian Throughflow (ITF) and its i…
Characterization of wave-particle interactions in the flux pile-up region of asymmetric reconnection
We investigate electron whistler wave activity in the flux pile-up region of an asymmetric reconnection event at the magnetopause. The ~140Hz waves are right-hand polarized with a…
Late Miocene garnet-bearing andesites in the Northern Andean Block and their tectonic implications
Garnet-bearing volcanic rocks are extremely rare at convergent margins, with few known occurrences worldwide [ref 1-2]; however, such rocks are common within the late Miocene volc…
Heterogeneities of the Earth's inner core boundary by pre-critically reflected phases of PKiKP and PcP
The Earth’s crystalline inner core (IC) solidifies from the liquid Fe alloy of the outer core (OC), which releases latent heat and light elements sustaining the geodynamo. Variabi…
Ecological Marine Units as a Framework for Collaborative Data Science and Knowledge Discovery
We present a data-derived, ecosystem mapping approach for the global ocean as commissioned by the Group on Earth Observations (GEO) and as a contribution to the Marine Biodiversit…
Food-Energy-Water Security Considering Climate and Land Use Changes in the São Francisco River Basin
Brazil is one of the richest countries in water resources and is currently the second largest global supplier of food and agricultural products. Furthermore, more than 70% of Braz…
Bayesian Elastic Full-Waveform Inversion using Hamiltonian Monte Carlo
We develop a Hamiltonian Monte Carlo (HMC) sampler which solves a multi-parameter elastic full-waveform inversion (FWI) in a probabilistic setting for the first time. This gives n…
Comprehensive Evaluations of Mesoscale Convective Systems Simulated in Convection-permitting WRF Model during the MC3E …
Mesoscale convective systems (MCSs) are an important component of our hydrologic cycle as they produce prolific rainfall in the tropics and mid-latitudes. Recent advancements in h…
Three major faults in northeastern Colombia (Sierra Nevada de Santa Marta & Perija Range): seismotectonic model and…
In the northeastern Colombia, the northernmost foothills of the Andes are present, whose representatives are the Sierra Nevada de Santa Marta (SNSM) and the Perija Range. This oro…
Ionospheric Modeling in GNSS Positioning Using Deep Learning Models
Deep learning techniques are used for capturing intricate structures of large-scale data by employing computational models of multiple processing layers that can learn and represe…
Tomography across scales: Knowledge transfer from seismology to imaging breast tissue with ultrasound
Ultrasound Computer Tomography (USCT) is an emerging technique for breast cancer screening. Ultrasonic waves are propagated through the tissue and recorded by a set of transducers…
A Time-dependent Heliospheric Model Driven by Empirical Boundary Conditions
Consisting of charged particles originating from the Sun, the solar wind carries the Sun’s energy and magnetic field outward through interplanetary space. The solar wind is the pr…
Updating century old Congo River navigation maps and revealing their geomorphological secrets
River transport, with more than 17,000 km of navigable channels in the Congo, is a crucial part of the economy for many of the countries sharing the river basin and allows the tra…
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