Results 21 to 30 of about 20,207 (328)

A novel algorithm for circumventing the need to model large supercells of mismatched material interfaces

npj Computational Materials
A longstanding challenge in materials science has been the computational modeling of interfaces between materials with different lattice parameters. Traditional approaches using plane-wave basis sets require either introducing artificial strain through ...
Noam Levi Hadari, Maytal Caspary Toroker
doaj   +2 more sources

Hailstorms and rainstorms versus supercells—a regional analysis of convective storm types in the Alpine region

npj Climate and Atmospheric Science, 2023
The behaviour of severe thunderstorms, particularly supercells, in complex terrain is still poorly understood. Utilising 6 years of radar-, lightning- and radiosounding-based thunderstorm data in the domain of the Swiss radar network, we study different ...
Monika Feldmann, A. Hering, M. Gabella, A. Berne   +3 more
semanticscholar   +1 more source

Climatological occurrences of hail and tornadoes associated with mesoscale convective systems in the United States [PDF]

Natural Hazards and Earth System Sciences, 2023
Hail and tornadoes are hazardous weather events responsible for significant property damage and economic loss worldwide. The most devastating occurrences of hail and tornadoes are commonly produced by supercells in the United States.
J. Wang, J. Wang, J. Fan, J. Fan, Z. Feng   +4 more
doaj   +1 more source

Evaluating Bunkers' storm motion of hail-producing supercells and their storm-relative helicity in Germany

Meteorologische Zeitschrift, 2023
This paper presents a statistical analysis of the motion of hail-producing supercells in Germany based on data from a radar-based cell detection and tracking algorithm and a mesocyclone detection algorithm.
Mathis Tonn, Jannik Wilhelm, Michael Kunz   +2 more
doaj   +1 more source

Impacts of Assimilating GOES‐16 ABI Channels 9 and 10 Clear Air and Cloudy Radiance Observations With Additive Inflation and Adaptive Observation Error in GSI‐EnKF for a Case of Rapidly Evolving Severe Supercells

Journal of Geophysical Research - Atmospheres, 2022
The unprecedentedly high space and time resolution of infrared radiance observations from GOES‐16 Advanced Baseline Imager (ABI) present an opportunity to improve analyses and short‐term forecasts of rapidly evolving convective‐scale processes such as ...
Aaron Johnson, Xu-Guang Wang, Thomas A. Jones   +2 more
semanticscholar   +1 more source

Indoor Non‐Line‐of‐Sight Millimeter‐Wave Coverage Enhancements by Field‐Reorganizable Passive Digital Coding Metasurfaces

Advanced Photonics Research, 2023
Digital metasurfaces define a novel methodology for metasurface designs by adopting discrete coding meta‐atoms to engineer electromagnetic waves in programmable ways.
Jia Qi Han, Xiang Jin Ma, Hao Yi, Shun Cheng Tian, Hai Xia Liu, Long Li, Tie Jun Cui   +6 more
doaj   +1 more source

Using the Supercell Polarimetric Observation Research Kit (SPORK) to Examine a Large Sample of Pretornadic and Nontornadic Supercells

E-Journal of Severe Storms Meteorology, 2022
Previous work examining dual-polarization (dual-pol) radar signatures of supercells has shown that differential reflectivity (ZDR) column area, hailfall area and specific differential phase (KDP)–ZDR separation angles may differ between tornadic and ...
Matthew B. Wilson, M. S. Van Den Broeke
semanticscholar   +1 more source

Infrasound signals in simulated nontornadic and pre-tornadic supercells.

Journal of the Acoustical Society of America, 2022
There has been increased interest in improving severe weather detection by supplementing the conventional operational radar network with an infrasound observation network, which may be able to detect distinct sub-audible signatures from tornadic ...
Brice E Coffer, M. Parker
semanticscholar   +1 more source

Spin-Resolved Visible Optical Spectra and Electronic Characteristics of Defect-Mediated Hexagonal Boron Nitride Monolayer

Crystals, 2022
Defect-mediated hexagonal boron nitride (hBN) supercells display visible optical spectra and electronic characteristics. The defects in the hBN supercells included atomic vacancy, antisite, antisite vacancy, and the substitution of a foreign atom for ...
Sheng Yu, Tikaram Neupane, Bagher Tabibi, Qiliang Li, Felix Jaetae Seo   +4 more
doaj   +1 more source

A New Composite Material on the Base of Carbon Nanotubes and Boron Clusters B12 as the Base for High-Performance Supercapacitor Electrodes

C, 2021
We explore the quantum capacitance, stability, and electronic properties of single-walled carbon nanotubes decorated with B12 icosahedral boron clusters by first-principle calculation methods implemented in the SIESTA code.
Dmitry A. Kolosov, Olga E. Glukhova
doaj   +1 more source