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The Key Role of Diabatic Outflow in Amplifying the Midlatitude Flow: a Representative Case Study of Weather Systems Surrounding Western North Pacific Extratropical Transition
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The article was published on 2017-01-25 and is currently open access. It has received 56 citations till now. The article focuses on the topics: Outflow & Extratropical cyclone.read more
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Journal ArticleDOI
Rossby Wave Packets on the Midlatitude Waveguide—A Review
TL;DR: In this paper, a review of the literature on upper-tropospheric transient wave packets along the midlatitude jet stream is presented, with an emphasis on developments during the last 15 years.
Journal ArticleDOI
The North Atlantic Waveguide and Downstream Impact Experiment
Andreas Schäfler,George C. Craig,Heini Wernli,Philippe Arbogast,James D. Doyle,Ron McTaggart-Cowan,John Methven,Gwendal Rivière,Felix Ament,Maxi Boettcher,Martina Bramberger,Quitterie Cazenave,Richard Cotton,Susanne Crewell,Julien Delanoë,Andreas Dörnbrack,André Ehrlich,Florian Ewald,Andreas Fix,Christian M. Grams,Suzanne L. Gray,Hans Grob,Silke Groß,Martin Hagen,Ben Harvey,Lutz Hirsch,Marek Jacob,Tobias Kölling,Heike Konow,Christian Lemmerz,Oliver Lux,Linus Magnusson,Bernhard Mayer,Mario Mech,Richard W. Moore,Jacques Pelon,Julian F. Quinting,Stephan Rahm,Markus Rapp,Marc Rautenhaus,Oliver Reitebuch,Carolyn A. Reynolds,Harald Sodemann,Thomas Spengler,Geraint Vaughan,Manfred Wendisch,Martin Wirth,Benjamin Witschas,Kevin Wolf,Tobias Zinner +49 more
TL;DR: The North Atlantic Waveguide and Downstream Impact Experiment (NAWDEX) explored the impact of diabatic processes on disturbances of the jet stream and their influence on downstream high-impact weather through the deployment of four research aircraft, each with a sophisticated set of remote-sensing and in situ instruments, and coordinated with a suite of ground-based measurements as discussed by the authors.
Journal ArticleDOI
An atmospheric dynamics perspective on the amplification and propagation of forecast error in numerical weather prediction models: A case study
Journal ArticleDOI
The Extratropical Transition of Tropical Cyclones. Part II: Interaction with the Midlatitude Flow, Downstream Impacts, and Implications for Predictability
Julia H. Keller,Julia H. Keller,Christian M. Grams,Christian M. Grams,Michael Riemer,Heather M. Archambault,Lance F. Bosart,James D. Doyle,Jenni L. Evans,Thomas J. Galarneau,Kyle S. Griffin,Patrick A. Harr,Naoko Kitabatake,Ron McTaggart-Cowan,Florian Pantillon,Julian F. Quinting,Julian F. Quinting,Carolyn A. Reynolds,Elizabeth A. Ritchie,Ryan D. Torn,Fuqing Zhang +20 more
TL;DR: The extratropical transition (ET) of tropical cyclones often has an important impact on the nature and predictability of the midlatitude flow of the tropical cyclone as discussed by the authors.
References
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Journal ArticleDOI
Meso-gamma scale forecasts using the nonhydrostatic model LM
TL;DR: It is concluded, that orographic filtering is necessary and the effect of such filtering on precipitation forecasts is investigated, and examples of model predictions at the meso-γ scale are given.
Journal ArticleDOI
A lagrangian‐based analysis of extratropical cyclones. I: The method and some applications
Heini Wernli,Huw C. Davies +1 more
TL;DR: A Lagrangian-based method of analysis is introduced to examine the space-time structure and dynamics of extratropical cyclogenesis and can provide a qualitative depiction of, quantitative information about, and dynamical insight into, key features of mid-latitude cyclones.
Journal ArticleDOI
Potential Vorticity Diagnostics of Cyclogenesis
TL;DR: In this paper, a diagnostic system based on the relative smallness of the irrotational part of the horizontal wind was developed to calculate the balanced flow given the three-dimensional distribution of Ertel's potential vorticity (PV) framework.
Journal ArticleDOI
The extratropical transition of tropical cyclones : forecast challenges, current understanding, and future directions
Sarah C. Jones,Patrick A. Harr,Jim Abraham,Lance F. Bosart,Peter J. Bowyer,Jenni L. Evans,Deborah E. Hanley,Barry N. Hanstrum,Robert E. Hart,François Lalaurette,Mark R. Sinclair,Robert K. Smith,Chris D. Thorncroft +12 more
TL;DR: In this article, the challenges associated with forecasting extratropical transition are described in terms of the forecast variables (track, intensity, surface winds, precipitation) and their impacts (flooding, bush fires, ocean response).
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