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Lawrence B. Dunn

914 MONTHLY WEATHER REVIEW VOLUME 120Evidence of Ascent in a Sloped Barrier Jet and an Associated Heavy-Snow Band LAWRENCE B. DUNNNO,,IA /NWS Western Region, Scientific Services Division, Salt Lake City, Utah(Manuscript received 25 June 1991, in final form 12 September 1991)ABSTRACT Doppler radar data are used to identify alongstream slope of a barrier jet running parallel to the east slopeof the Front Range

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August 1968Donald R. Johnson and William C. Shen5 59PROFILES OF INFRARED IRRADIANCE AND COOLING THROUGH A JET STREAM DONALD R. JOHNSONDepartment of Meteorology, University of Wisconsin, Madison, Wis.WILLIAM C. SHEN*Control Data Corporation, Minneapolis, Minn.ABSTRACTVertical atmospheric crom sections of upward, downward, and net infrared irradiance, infrared cooling, temper-ature, potential temperature, and water vapor through a jet stream have been constructed for Jan. 7 and 9, 1961

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Jen-Shan Hsieh and Kerry H. Cook

tropical cyclones were associated with African waves. Diedhiou et al. (1998) distinguish similar periods in the National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) reanalyses and find that 3–5-day waves have average wavelengths of 2500 km and phase speeds around 8 m s −1 . They note two preferred tracks, one to the north and one to the south of the African easterly jet, and suggest that these tracks tend to merge over the Atlantic. The 6–9-day waves

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A. Celeste Saulo, Marcelo E. Seluchi, and Matilde Nicolini

1. Introduction In recent years there has been a significantly increased interest in the study of the South American low-level jet (SALLJ) as a fundamental component of what has come to be named the South American monsoon system ( Nogués-Paegle et al. 2002 ; Zhou and Lau 1998 ). The increased number of studies related to the large-scale characteristics of the SALLJ can be partially explained by the availability of analyses and/or reanalyses [i.e., those generated by the National Centers for

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Steven J. Ghan, Xindi Bian, and Lisa Corsetti

1388 MONTHLY WEATHER REVIEW VOLUME 124Simulation of the Great Plains Low-Level Jet and Associated Clouds by General Circulation Models STEVEN J. GHAN AND XINDI BIANAtmospheric Sciences Group, Pacific Northwest National Laboratory, Richland, Washington LISA CORSETrlProgram for Climate Model Diagnosis and Intercomparison, Lawrence Liverrnore

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Ming Liu, Douglas L. Westphal, Teddy R. Holt, and Qin Xu

1. Introduction Low-level jets (LLJs) occur in many regions of the world and have attracted a great deal of interest in the past decades because of their importance to air-pollutant transport, deep convection activities, cyclogenesis, wind energy production, and aviation safety ( Doyle and Warner 1991 ; Stensrud 1996 ). In this paper, we discuss a previously undocumented northerly LLJ event occurring in central and southern Iran on 12, 13, and 14 February 1995. The Lut Desert is an elongated

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Jerome D. Fast and Michael D. McCorcle

J^NUARYI990 JEROME D. FAST AND MICHAEL D. MCCORCLE 151A Two-Dimensional Numerical Sensitivity Study of the Great Plains Low-Level Jet*JEROME D. FAST* * AND MICHAEL D, MCCORCLE tIowa State University, Ames, Iowa(Manuscript received 26 January 1989, in final form 21 August 1989)ABSTRACT Observations have shown the existence of a diurnal oscillation of the wind profile in the springtime boundarylayer

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March 1966William D. Bonner167CASE STUDY OF THUNDERSTORM ACTIVITY IN RELATION TO THE LOW-LEVEL JETWILLIAM D. BONNER 1Department of Meteorology, University of California, Los Angeles and Meteorology Research, lnc., Altadena, Calif.ABSTRACTThe relationship between the low-level jet and thunderstorm activity in the south-cent,ral United States isexamined through mesoanalysis of surface data from Weat.her Bureau and NSSP stations. Separate squall systemsmoved through Kansas and

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Dudley B. Chelton, Michael H. Freilich, and Steven K. Esbensen

1. Introduction The existence of three major intermittent wind jets over the Gulfs of Tehuantepec, Papagayo, and Panama along the west coast of Central America 1 was documented in the literature by the end of the third decade of this century ( Frankenfield 1917 ; Chapel 1927 ; Hurd 1929 ). It is well established that the Tehuantepec jet is triggered by relatively high pressure in the Gulf of Mexico that is associated with cold-air outbreaks from the Great Plains of North America ( Hurd 1929

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Anne Dagrun Sandvik and Birgitte Rugaard Furevik

1. Introduction A coastal jet was indicated when high backscattering from a limited sea surface area was seen on the satellite-based synthetic aperture radar (SAR) imagery acquired over Hinlopenstretet, Norway, between Spitsbergen and Nordaustlandet ( Figs. 1 and 3 ), at 1149 UTC 14 August 1996. SAR images are snapshots of the surface roughness. For open water the surface roughness changes according to the wind stress, and areas of spatially inhomogeneous wind become visible in the radar images

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