Zobrazeno 1 - 10
of 26
pro vyhledávání: '"R. J. Purser"'
Autor:
L. Cucurull, R. J. Purser
Publikováno v:
Monthly Weather Review. 151:1093-1108
Under very large vertical gradients of atmospheric refractivity, which are typical at the height of the planetary boundary layer, the assimilation of radio occultation (RO) observations into numerical weather prediction (NWP) models presents several
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e94413e951338eacd6f8308456ea637
https://doi.org/10.1175/mwr-d-22-0073.1
https://doi.org/10.1175/mwr-d-22-0073.1
Publikováno v:
Journal of Geophysical Research: Atmospheres. 118:14-28
[1] Applications for space-based GPS technology have extended to the atmospheric field during the last two decades. More recently, numerical weather prediction (NWP) centers started incorporating global positioning system (GPS) radio occultation (RO)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f92eae5b47a4ba2ec7b610cf4dddecb
https://doi.org/10.1029/2012jd017782
https://doi.org/10.1029/2012jd017782
Publikováno v:
Monthly Weather Review. 136:1865-1877
Following the successful launch of the Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) satellites in April 2006, NCEP’s Environmental Modeling Center (EMC) is planning to use the COSMIC data in its next-generation Gl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1b28385c5f9c506b5a1446da84b695e
https://doi.org/10.1175/2007mwr2260.1
https://doi.org/10.1175/2007mwr2260.1
Publikováno v:
Monthly Weather Review. 135:3174-3193
The Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) mission launched six small satellites in April 2006, each carrying a GPS radio occultation (RO) receiver. At final orbit, COSMIC will provide ∼2500–3000 RO sound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f12f5aa78950afb73c77d236d4e59a3
https://doi.org/10.1175/mwr3461.1
https://doi.org/10.1175/mwr3461.1
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 113:735-757
The prime need in forecasting atmospheric motions is to predict the synoptic pattern accurately, and to fill in as much mesoscale detail on it as possible. the problem is difficult because the atmospheric fields contain almost discontinuous structure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::547f2d4a8faafcd73ee528ee979d0285
https://doi.org/10.1002/qj.49711347704
https://doi.org/10.1002/qj.49711347704
Autor:
R. J. Purser
Publikováno v:
Journal of the Atmospheric Sciences. 56:2522-2535
For semigeostrophic (SG) theories derived from the Hamiltonian principles suggested by Salmon it is known that a duality exists between the physical coordinates and geopotential, on the one hand, and isentropic geostrophic momentum coordinates and ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1bda1c1fd926d2accf0e4c4c92f4345
https://doi.org/10.1175/1520-0469(1999)056<2522:ltst>2.0.co
https://doi.org/10.1175/1520-0469(1999)056<2522:ltst>2.0.co
Autor:
J. F. LeMarshall, Lance M. Leslie, R. J. Purser, N. Pescod, R. Morison, C. Spinoso, R. Seecamp
Publikováno v:
Monthly Weather Review. 126:1248-1258
Despite recent improvements in the accuracy of hurricane track forecasts, mean position errors still remain unacceptably large. For example, recurvature is captured poorly by forecast models and can produce excessively large position errors. This stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47ee81f6b5b8e3bd3d354a5ee8b2c215
https://doi.org/10.1175/1520-0493(1998)126<1248:ihtfft>2.0.co
https://doi.org/10.1175/1520-0493(1998)126<1248:ihtfft>2.0.co
Autor:
M. Rančcić, R. J. Purser
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 124:637-647
We describe a variational technique for generating smooth quasi-homogeneous numerical grids covering the sphere. This work extends our earlier studies of non-standard global grids by relaxing the requirement of conformality to admit a greater degree
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::141b5a863886e4b40daba93e7bc17d1c
https://doi.org/10.1002/qj.49712454612
https://doi.org/10.1002/qj.49712454612
Autor:
Lance M. Leslie, R. J. Purser
Publikováno v:
Monthly Weather Review. 125:1261-1276
Having recently demonstrated that significant enhancement of forecast accuracy in a semi-Lagrangian model results from the application of high-order time integration methods to the second-derivative form of the equations governing the trajectories, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56b29f6eed1ef08037b56547b58a9bce
https://doi.org/10.1175/1520-0493(1997)125<1261:hoglnc>2.0.co
https://doi.org/10.1175/1520-0493(1997)125<1261:hoglnc>2.0.co
Autor:
R. J. Purser, Miodrag Rančić
Publikováno v:
Meteorology and Atmospheric Physics. 62:33-48
With the increasingly widespread adoption of massively parallel processing (MPP) computers for applications in computational fluid dynamics it becomes appropriate to reconsider the geometrical configuration of the computational grid that best suits t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9653e14f99ad7e13598ebdb7b330af61
https://doi.org/10.1007/bf01037478
https://doi.org/10.1007/bf01037478