Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Alexander E. MacDonald"'
Autor:
Tom Henderson, Ning Wang, Alexander E. MacDonald, Antonio Duarte, Jim Rosinski, Jacques Middlecoff, Paul Madden, Mark Govett, Julie Schramm, Jin Lee
Publikováno v:
Bulletin of the American Meteorological Society. 98:2201-2213
The design and performance of the Non-Hydrostatic Icosahedral Model (NIM) global weather prediction model is described. NIM is a dynamical core designed to run on central processing unit (CPU), graphics processing unit (GPU), and Many Integrated Core
Autor:
Adam D. Dunbar, Anneliese Alexander, James M. Wilczak, Christopher T. M. Clack, Alexander E. MacDonald, Yuanfu Xie
Publikováno v:
Nature Climate Change. 6:526-531
Carbon dioxide emissions from electricity generation are a major cause of anthropogenic climate change. The deployment of wind and solar power reduces these emissions, but is subject to the variability of the weather. In the present study, we calcula
Publikováno v:
Wind Energy. 19:1687-1697
Autor:
James Rosinski, Paul Madden, Tanya Smirnova, Stanley G. Benjamin, Rainer Bleck, Alexander E. MacDonald, Michael Fiorino, Jin-Luen Lee, John M. Brown, Tom Henderson, Shan Sun, Jian-Wen Bao, Jacques Middlecoff, Ning Wang
Publikováno v:
Monthly Weather Review. 143:2386-2403
A hydrostatic global weather prediction model based on an icosahedral horizontal grid and a hybrid terrain-following/isentropic vertical coordinate is described. The model is an extension to three spatial dimensions of a previously developed, icosahe
Autor:
Alexander E. MacDonald, Yuanfu Xie
Publikováno v:
Pure and Applied Geophysics. 169:335-351
Three choices of control variables for meteorological variational analysis (3DVAR or 4DVAR) are associated with horizontal wind: (1) streamfunction and velocity potential, (2) eastward and northward velocity, and (3) vorticity and divergence. This st
Publikováno v:
The International Journal of High Performance Computing Applications. 25:392-403
For simulation on a spherical surface, such as global numerical weather prediction, icosahedral grids are superior to their competitors in uniformity of grid mesh distance across the entire globe and lack of neighboring grid cells that share only a s
Publikováno v:
Journal of Computational Physics. 229:9284-9298
A multistep flux-corrected transport (MFCT) scheme is developed to achieve conservative and monotonic tracer transports for multistep dynamical cores. MFCT extends Zalesak two-time level scheme to any multistep time-differencing schemes by including
Publikováno v:
Monthly Weather Review. 138:2188-2210
This article is one in a series describing the functionality of the Flow-Following, Finite-Volume Icosahedral Model (FIM) developed at NOAA’s Earth System Research Laboratory. Emphasis in this article is on the design of the vertical coordinate—t
Autor:
Alexander E. MacDonald, Jin-Luen Lee
Publikováno v:
Monthly Weather Review. 137:1422-1437
An icosahedral-hexagonal shallow-water model (SWM) on the sphere is formulated on a local Cartesian coordinate based on the general stereographic projection plane. It is discretized with the third-order Adam–Bashforth time-differencing scheme and t