J
Jielun Sun
Researcher at National Center for Atmospheric Research
Publications - 91
Citations - 4796
Jielun Sun is an academic researcher from National Center for Atmospheric Research. The author has contributed to research in topics: Turbulence & Planetary boundary layer. The author has an hindex of 37, co-authored 88 publications receiving 4361 citations. Previous affiliations of Jielun Sun include University of Colorado Boulder & Oregon State University.
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Journal ArticleDOI
CASES-99: A Comprehensive Investigation of the Stable Nocturnal Boundary Layer
Gregory S. Poulos,William Blumen,David C. Fritts,Julie K. Lundquist,Jielun Sun,Sean P. Burns,Carmen J. Nappo,Robert M. Banta,Rob K. Newsom,Joan Cuxart,Enric Terradellas,Ben B. Balsley,Michael Jensen +12 more
TL;DR: The Cooperative Atmosphere-Surface Exchange Study-1999 (CASES-99) refers to a field experiment carried out in southeast Kansas during October 1999 and the subsequent program of investigation as discussed by the authors.
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Turbulence Regimes and Turbulence Intermittency in the Stable Boundary Layer during CASES-99
TL;DR: In this paper, the authors investigated nocturnal intermittent turbulence during the Cooperative Atmosphere-Surface Exchange Study in 1999 (CASES-99) and revealed three turbulence regimes at each observation height: 1) regime 1, a weak turbulence regime when the wind speed is less than a threshold value; 2) regime 2, a strong turbulence regime with wind speed exceeding the threshold value.
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Atmospheric Disturbances that Generate Intermittent Turbulence in Nocturnal Boundary Layers
Jielun Sun,Donald H. Lenschow,Sean P. Burns,Robert M. Banta,Rob K. Newsom,Richard Coulter,Stephen J. Frasier,Turker Ince,Carmen J. Nappo,Ben B. Balsley,Michael L. Jensen,Larry Mahrt,David R. Miller,Brian Skelly +13 more
TL;DR: In this paper, the authors focused on the turbulence intermittency generated by the solitary wave and internal gravity wave, and intermittent turbulence episodes associated with pressure change and wind direction shiftsadjacent to the ground.
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The Coupled Boundary Layers and Air–Sea Transfer Experiment in Low Winds
James B. Edson,Timothy L. Crawford,Jerry Crescenti,Tom Farrar,Nelson M. Frew,Greg Gerbi,Costas G. Helmis,Tihomir Hristov,Djamal Khelif,Andrew T. Jessup,Haf Jonsson,Ming Li,Larry Mahrt,Wade R. McGillis,Albert J. Plueddemann,Lian Shen,Eric D. Skyllingstad,Timothy P. Stanton,Peter P. Sullivan,Jielun Sun,John H. Trowbridge,Dean Vickers,Shouping Wang,Qing Wang,Robert A. Weller,John Wilkin,Albert J. Williams,Dick K. P. Yue,Christopher J. Zappa +28 more
TL;DR: The Coupled Boundary Layers and Air-Sea Transfer (CBLAST) program is being conducted to investigate the processes that couple the marine boundary layers and govern the exchange of heat, mass, and momentum across the air-sea interface.
Journal ArticleDOI
Intermittent Turbulence Associated with a Density Current Passage in the Stable Boundary Layer
Jielun Sun,Sean P. Burns,Donald H. Lenschow,Robert M. Banta,Rob K. Newsom,Richard Coulter,Stephen J. Frasier,Turker Ince,Carmen J. Nappo,Joan Cuxart,William Blumen,Xuhui Lee,Xin-Zhang Hu +12 more
TL;DR: In this article, the authors focus on the first event, the density current and its associated intermittent turbulence, and show that the height and sequence of the localthermal and shear instabilities associated with the dynamics ofthe density current are responsible for the apparent intermittentturbulence.