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Dušan Djurić and David S. Ladwig

NOVEMBER 1983 DU~AN DJURI~ AND DAVID S. LADWIG 2275Southerly Low-Level Jet in the Winter Cyclones of the Southwestern Great Plains DU~AN DJURI(2Department of Meteorology, Texas A&M University, College Station, TX 77843DAVID S. LADWIG17th Weather Squadron, Altus AFB, OK 73523(Manuscript received 3 December. 1981, in final form 25 July 1983)ABSTRACT On the basis of 20 cases in the winter half year

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James E. Overland and Nicholas A. Bond

2934 MONTHLY WEATHER REVIEW VOLUME 123Observations and Scale Analysis of Coastal Wind Jets JAMES E. OVERLAND Pacific Marine Environmental Laboratory/NOAA, Seattle, Washington NICHOLAS A. BONDJISAO, University of Washington, Seattle, Washington(Manuscript received 9 June 1994, in final form 21 February 1995) ABSTRACT

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James D. Doyle

Wyman 1985 ). For mesoscale mountains ( L ≪ U / f ) such as the coastal range of California, the maximum mountain height primarily determines the character of the barrier effects, while the steepness is important for atmospheric response to broad mountains [ L ∼ O ( U / f )] (Pierrehumbert 1984). Lower-tropospheric wind maxima are often observed in the coastal zone and can be enhanced by coastal orography due to cold-air damming effects, such as barrier jets (e.g., Bell and Bosart 1988 ; Doyle

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Ricardo C. Muñoz and RenéD. Garreaud

1. Introduction The low-level wind regime in the southeast Pacific is dominated by a quasi-permanent subtropical high pressure system. Off the western coast of South America, along the coast of north and central Chile (latitude 37°–20°S), this high pressure system induces southerly winds, which in many instances take the form of a low-level coastal jet (CJ). In a companion paper ( Garreaud and Muñoz 2005 , hereafter GM05 ) we have used observed data and model results to document the existence

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Louis W. Uccellini

OCTOBER 1980 NOTES AND CORRESPONDENCE 1689NOTES AND CORRESPONDENCEOn the Role of Upper Tropospheric Jet Streaks and Leeside Cyclogenesis in the Development of Low-Level Jets in the Great Plains Louis W. UCCELLINILaboratory for Atmospheric Sciences, Goddard Space Flight Center, NASA, Greenbelt, MD 207716 March 1980 and 6 June 1980ABSTRACT A review of 15 cases of low

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Daniel Cadet and Michel Desbois

182 MONTHLY WEATHER REVIEW VOCt~M-109A Case Study of a Fluctuation of the Somali Jet During the Indian Summer Monsoon DANIEL CADET AND MICHEL DESBOISLaboratoire de Meteorologie Dynamique du CNRS. Ecole Polytechnique. 9112~ Palaiseau Cedex. France24 January 1980 and 7 August 1980ABSTRACT A fluctuation in the intensity of the Somali low-level jet flowing along the East African coast during theIndian summer

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Jean-Pierre Cammas and Daniel Ramond

NOVEMBER 1989 JEAN-PIERRE CAMMAS AND DANIEL RAMOND 2447Analysis and Diagnosis of the Composition of Ageostrophic Circulations in Jet-Front Systems JEAN-PIERRE CAMMAS AND DANIEL RAMONDObservatoire de Physique du Globe de Clermont-Ferrand, Laboratoire de Mdt~orologie Physique, Universit~ Blaise Pascal, Clermont-Ferrand, France (Manuscript received 23 November 1988, in final form 10

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G. S. Bhat and A. Krothapalli

1. Introduction Round jets and plumes are flows resulting from a source of momentum and buoyancy, respectively, in a large body of constant density fluid. These flows are generally turbulent, expand conically in the axial direction, and appear to originate from a point source ( Fig. 1 ). Jets and plumes are geometrically simple flows, amenable to experimental investigation and theoretical analysis. They provide the basis for modeling a variety of practical and natural flows, including

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David A. Rahn, René D. Garreaud, and José A. Rutllant

a southerly low-level jet (LLJ) off central Chile ( Garreaud and Muñoz 2005 ; Muñoz and Garreaud 2005 ). Southerly LLJs are particularly strong when a migratory anticyclone crosses the coast of southern Chile ( Garreaud and Muñoz 2005 ), but a wind speed maximum (>8 m s −1 ) is even evident in the long-term November–December mean over an elongated, coastal-parallel area centered about 150 km offshore ( Fig. 1 ). Fig . 1. The 10-m wind derived from QuikSCAT averaged over November and December

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Abdou L. Dieng, Saidou M. Sall, Laurence Eymard, Marion Leduc-Leballeur, and Alban Lazar

, Chen and Liu, 2014 found that more than half of the low-level, moist vortices originating from south of the African easterly jet (AEJ) merged with a shallow, dry vortex from the north after leaving the West African coast and showed that this process occurred in the “predepression” stage of 70% of tropical cyclones (TCs) that formed in the MDR. Additionally, observational and modeling case studies showed that the coupling between AEW and convective activity is essential for the tropical cyclone

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