Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Yonggang G Yu"'
Autor:
Jonathan J. Guerrette, Zhiquan Liu, Chris Snyder, Byoung-Joo Jung, Craig S. Schwartz, Junmei Ban, Steven Vahl, Yali Wu, Ivette Hernandez Banos, Yonggang G. Yu, Soyoung Ha, Yannick Tremolet, Thomas Auligne, Clementine Gas, Benjamin Menetrier, Anna Shlyaeva, Mark Miesch, Stephen Herbener, Emily Liu, Daniel Holdaway, Benjamin T. Johnson
An ensemble of three-dimensional ensemble-variational (En-3DEnVar) data assimilations is demonstrated with the Joint Effort for Data assimilation Integration (JEDI) with the Model for Prediction Across Scales – Atmosphere (MPAS-A) (i.e., JEDI-MPAS)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9e843ed7a836ce650350923a6e0bf91
https://gmd.copernicus.org/preprints/gmd-2023-54/
https://gmd.copernicus.org/preprints/gmd-2023-54/
Publikováno v:
Monthly Weather Review. 148:4009-4033
A single software framework is introduced to evaluate numerical accuracy of the A-grid (NICAM) versus C-grid (MPAS) shallow-water model solvers on icosahedral grids. The C-grid staggering scheme excels in numerical noise control and total energy cons
Publikováno v:
The International Journal of High Performance Computing Applications. :109434202211395
This study uses a single software framework to compare the CPU performance of Arakawa A-grid (NICAM) and C-grid (MPAS) schemes for solving the shallow-water equations on icosahedral grids. The focus is on high-resolution weather prediction. Performan
Publikováno v:
Physical Review B. 95
The half-Heusler filled tetrahedral structures (FTSs) are zinc-blende-like compounds, where an additional atom is filling its previously empty interstitial site. The FTSs having 18 valence electrons per formula unit are an emerging family of function
Publikováno v:
Physics of the Earth and Planetary Interiors. 217:36-47
Phase equilibria of α, β, and γ (Mg,Fe) 2 SiO 4 are important to understanding the mineralogy of the Earth’s upper mantle. Using the first principles approach, we studied thermodynamic properties and phase stability fields of Fe 2 SiO 4 . We sho
Publikováno v:
Geophysical Research Letters. 40:290-294
[1] We present first-principles results for elastic moduli (bulk, K, and shear, G) and acoustic velocities (compressional, VP, shear, VS, and bulk VΦ) of olivine (α) and wadsleyite (β) (Fex,Mg1 − x)2SiO4, at high pressure (P) and temperature (T)
Publikováno v:
Earth and Planetary Science Letters. :1-7
Using density functional theory + Hubbard U (DFT + U ) calculations, we investigate the spin states and nuclear hyperfine interactions of iron incorporated in magnesium silicate (MgSiO 3 ) post-perovskite (Ppv), a major mineral phase in the Earth's D
Publikováno v:
Reviews in Mineralogy and Geochemistry. 71:59-98
This research has been motivated by geophysics and materials physics. The objective of this research has been to advance materials theory and computations for high pressure and high temperature applications to the point that it can make a difference
Autor:
Yonggang G. Yu, Renata M. Wentzcovitch
Publikováno v:
American Mineralogist. 94:461-466
We have investigated by first principles the compressional behavior of low-pressure (LP) and high-pressure (HP) MgSiO 3 clinoenstatite. We have carefully examined unit-cell shapes, chain angles, and polyhedral volume responses, such as angle variance
Publikováno v:
Earth and Planetary Science Letters. 276:198-206
article i nfo We present a density functional study of the pressure-induced spin transition in ferrous iron (Fe 2+ ) at the A site in MgSiO3 perovskite. We address the influence of iron concentration and configuration (structural and magnetic), as we