Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Teddie L. Keller"'
Publikováno v:
Monthly Weather Review. 150:2593-2615
Two cases of observed widespread moderate-or-greater (MOG) clear-air turbulence (CAT) in different synoptic patterns are investigated using a nested high-resolution NWP model. Both of these cases occurred in confluent entrance regions of upper-tropos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdbc0968a0618ecb72ae2b3662b9d058
https://doi.org/10.1175/mwr-d-22-0077.1
https://doi.org/10.1175/mwr-d-22-0077.1
Autor:
Gary Pokodner, Teddie L. Keller, Matthias Steiner, Kyoko Ikeda, Domingo Muñoz-Esparza, Hyeyum Hailey Shin, Jeff Rawdon, Robert Sharman
Publikováno v:
Journal of Applied Meteorology and Climatology.
Takeoff and landing maneuvers can be particularly hazardous at airports surrounded by complex terrain. To address this, the Federal Aviation Administration has developed a Precipitous Terrain classification, as a way to impose more restrictive terrai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75153d76e532f5fede5655e45b814ebb
https://doi.org/10.1175/jamc-d-20-0268.1
https://doi.org/10.1175/jamc-d-20-0268.1
Publikováno v:
Journal of the Atmospheric Sciences. 75:1285-1305
Mountain-wave turbulence in the presence of directional wind shear over the Rocky Mountains in Colorado is investigated. Pilot reports (PIREPs) are used to select cases in which moderate or severe turbulence encounters were reported in combination wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a37a843038451cab65d711261bd9e4cd
https://doi.org/10.1175/jas-d-17-0128.1
https://doi.org/10.1175/jas-d-17-0128.1
Publikováno v:
Journal of Applied Meteorology and Climatology. 54:1373-1392
At 1818 mountain standard time 20 December 2008, a Boeing 737 jetliner encountered significant crosswinds while accelerating for takeoff at the Denver International Airport (DIA), ran off the side of the runway, and burst into flames. Passengers and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d50931e851e5aa1872e7c8e7d6f5480
https://doi.org/10.1175/jamc-d-14-0270.1
https://doi.org/10.1175/jamc-d-14-0270.1
Publikováno v:
Journal of the Atmospheric Sciences. 69:3060-3076
Previous studies have observed upstream-propagating modes in two-dimensional numerical simulations of idealized flow over topography with moist, nearly neutral conditions in the troposphere, topped by a stable stratosphere. The generation and propaga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7b4228f6bed4df6c6d0fd2baf1e4a77
https://doi.org/10.1175/jas-d-12-06.1
https://doi.org/10.1175/jas-d-12-06.1
Publikováno v:
Journal of Applied Meteorology and Climatology. 50:1936-1951
The forecast skill of upper-level turbulence diagnostics is evaluated using available turbulence observations [viz., pilot reports (PIREPs)] over East Asia. The six years (2003–08) of PIREPs used in this study include null, light, and moderate-or-g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::616901d96ced25a4c497cfa67079e88c
https://doi.org/10.1175/jamc-d-10-05017.1
https://doi.org/10.1175/jamc-d-10-05017.1
Publikováno v:
Journal of the Atmospheric Sciences. 56:2986-3009
The water vapor channel of the Geostationary Operational Environmental Satellite GOES-8 reveals narrow (30 km wide), elongated (500–1000 km) bands that propagate southward on the eastern side of the Rocky Mountains from Colorado to Texas. Two event
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faad89dd21885eeeffc5d20736568ea8
https://doi.org/10.1175/1520-0469(1999)056<2986:dtgwcb>2.0.co
https://doi.org/10.1175/1520-0469(1999)056<2986:dtgwcb>2.0.co
Autor:
Terry L. Clark, William D. Hall, Janice L. Coen, Teddie L. Keller, Hsiao-Ming Hsu, Peter Neilley
Publikováno v:
Journal of the Atmospheric Sciences. 54:1795-1814
Numerical simulations of terrain-induced turbulence associated with airflow over Lantau Island of Hong Kong are presented. Lantau is a relatively small island with three narrow peaks rising to between 700 and 950 m above mean sea level. This research
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3aca01155a96934c607b5ac0fad0133
https://doi.org/10.1175/1520-0469(1997)054<1795:titoli>2.0.co
https://doi.org/10.1175/1520-0469(1997)054<1795:titoli>2.0.co
Publikováno v:
Journal of the Atmospheric Sciences. 54:1308-1333
Although considerable understanding of mountain waves has been gained with the aid of the steady-state assumption, it is clear that mountain waves evolve over time. Group velocity arguments indicate that this evolution can occur in less than 1 h. Thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43835c85fa0075c93eb571c43a4d0e92
https://doi.org/10.1175/1520-0469(1997)054<1308:osaaon>2.0.co
https://doi.org/10.1175/1520-0469(1997)054<1308:osaaon>2.0.co
Autor:
Teddie L. Keller
Publikováno v:
Journal of the Atmospheric Sciences. 51:1915-1929
The validity of the hydrostatic approximation is examined for use in predicting the dynamics of topographically generated atmospheric gravity waves (lee waves) propagating in an atmosphere with realistic wind shear. To isolate nonhydrostatic effects,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77a45cb4fa9b779b7ca88bd0472654d8
https://doi.org/10.1175/1520-0469(1994)051<1915:iothao>2.0.co
https://doi.org/10.1175/1520-0469(1994)051<1915:iothao>2.0.co