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William J. Randel
Researcher at National Center for Atmospheric Research
Publications - 225
Citations - 21908
William J. Randel is an academic researcher from National Center for Atmospheric Research. The author has contributed to research in topics: Stratosphere & Troposphere. The author has an hindex of 76, co-authored 213 publications receiving 19770 citations. Previous affiliations of William J. Randel include University Corporation for Atmospheric Research & Iowa State University.
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Journal ArticleDOI
The quasi-biennial oscillation
Mark P. Baldwin,Lesley J. Gray,Timothy J. Dunkerton,Kevin Hamilton,Peter H. Haynes,William J. Randel,James R. Holton,M. J. Alexander,Isamu Hirota,Takeshi Horinouchi,Dylan B. A. Jones,J. S. Kinnersley,C. Marquardt,Kaoru Sato,M. Takahashi +14 more
TL;DR: The quasi-biennial oscillation (QBO) as discussed by the authors dominates the variability of the equatorial stratosphere (∼16-50 km) and is easily seen as downward propagating easterly and westerly wind regimes, with a variable period averaging approximately 28 months.
Journal ArticleDOI
Widening of the tropical belt in a changing climate
TL;DR: The tropical belt has been widening over past decades, shifting the dry subtropical climate zones polewards around the world as discussed by the authors, and the observed recent rate of expansion is greater than climate model projections of expansion over the twenty-first century, suggesting that there is still much to be learned about this aspect of global climate change.
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The COSMIC/FORMOSAT-3 Mission: Early Results
Richard A. Anthes,Paul A. Bernhardt,Y. Chen,Lidia Cucurull,Kenneth F. Dymond,D. Ector,Sean Healy,Shu-peng Ho,Douglas Hunt,Ying-Hwa Kuo,Hui Liu,Kevin W. Manning,Chris McCormick,Thomas K. Meehan,William J. Randel,Christian Rocken,William Schreiner,Sergey Sokolovskiy,Stig Syndergaard,D. C. Thompson,Kevin E. Trenberth,Tae-Kwon Wee,N. L. Yen,Zhen Zeng +23 more
TL;DR: The radio occultation (RO) technique, which makes use of radio signals transmitted by the global positioning system (GPS) satellites, has emerged as a powerful and relatively inexpensive approach for sounding the global atmosphere with high precision, accuracy, and vertical resolution in all weather and over both land and ocean as mentioned in this paper.
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Sensitivity of chemical tracers to meteorological parameters in the MOZART-3 chemical transport model
Douglas E. Kinnison,Guy Brasseur,Stacy Walters,Rolando R. Garcia,Daniel R. Marsh,Fabrizio Sassi,V. L. Harvey,Cora E. Randall,Louisa K. Emmons,Jean-Francois Lamarque,Peter Hess,John J. Orlando,X. Tie,William J. Randel,Laura L. Pan,Andrew Gettelman,Claire Granier,Claire Granier,Thomas Diehl,Ulrike Niemeier,Adrian Simmons +20 more
TL;DR: In this article, the authors used the Model for Ozone and Related Chemical Tracers, version 3 (MOZART-3) to evaluate the representation of long-lived tracers and ozone using three different meteorological fields.
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Asian monsoon transport of pollution to the stratosphere.
William J. Randel,Mijeong Park,Louisa K. Emmons,Doug Kinnison,Peter F. Bernath,Peter F. Bernath,Kaley A. Walker,Kaley A. Walker,Chris D. Boone,Hugh C. Pumphrey +9 more
TL;DR: The monsoon circulation provides an effective pathway for pollution from Asia, India, and Indonesia to enter the global stratosphere, using satellite observations of hydrogen cyanide (HCN), a tropospheric pollutant produced in biomass burning.