TITLE

A Local Energetics Analysis of the Life Cycle Differences between Consecutive, Explosively Deepening, Continental Cyclones

AUTHOR(S)
Decker, Steven G.; Martin, Jonathan E.
PUB. DATE
January 2005
SOURCE
Monthly Weather Review;Jan2005, Vol. 133 Issue 1, p295
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Local energetics diagnostics of the life cycles of consecutive, explosively deepening, extratropical cyclones that migrated across central North America in April 2001 are presented. Both storms developed rapidly and followed nearly identical tracks through the region. Despite similar mature-stage intensities, the two storms underwent vastly different evolutions during cyclolysis; the first decayed as rapidly as it had developed, and the second decayed very slowly. Examination of the volume-integrated eddy kinetic energy (EKE) budget for each storm reveals that the sea level pressure minimum associated with the first cyclone developed well after its associated EKE center had reached its maximum intensity. In contrast, the second cyclone’s sea level pressure minimum developed much more in concert with the development of its associated EKE center. As a consequence, the first cyclone began losing EKE through downstream energy fluxes even as it was developing at the surface, whereas the second cyclone did not disperse EKE downstream until later in its life cycle. Consideration of the EKE budget results in terms of baroclinic wave packets demonstrates that the first cyclone developed and decayed on the upstream edge of a wave packet, whereas the second cyclone developed in the midst of a wave packet, only decaying once it had reached the upstream edge. Thus, it is suggested that postmature phase decay is dynamically linked to a cyclone’s position in a given wave packet.
ACCESSION #
16311668

 

Related Articles

  • Major Numerical Forecast Failures over the Northeast Pacific. McMurdie, Lynn; Mass, Clifford // Weather & Forecasting;Apr2004, Vol. 19 Issue 2, p338 

    Strong North Pacific storms that impact the North American west coast are sometimes poorly predicted in the short term (up to 48 h) by operational models, with cyclone position errors of hundreds of kilometers and central pressure errors of tens of millibars. These major numerical forecast...

  • Climatological Aspects of Cyclone Development and Decay in the Arctic. Serreze, Mark C. // Atmosphere -- Ocean (Canadian Meteorological & Oceanographic Soc;Mar1995, Vol. 33 Issue 1, p1 

    Climatological aspects of Arctic cyclones are examined for winter and summer over a 20-year (1973-1992) period. The primary objective is to characterize patterns of cyclone distribution examined in previous studies in terms of cyclone sea level pressure tendency (SLPT), maximum deepening rates...

  • African Easterly Waves and Cyclonic Activity over the Eastern Atlantic: Composite and Case Studies. Camara, Moctar; Diedhiou, Arona; Gaye, Amadou // International Journal of Geophysics;2011, p1 

    This study aims to understand the main differences over the African continent and the Eastern Atlantic Ocean between African Easterly Waves (AEWs) associated with Atlantic cyclones (developing AEWs) and non-developing AEWs. A statistical study showed that most of the named cyclones generated...

  • Improving the Accuracy of Mapping Cyclone Numbers and Frequencies. Zolina, Olga; Gulev, Sergey K. // Monthly Weather Review;Mar2002, Vol. 130 Issue 3, p748 

    The uncertainties associated with the mapping of cyclone numbers and frequencies are analyzed using the 42-yr winter climatology of cyclone tracks derived from 6-hourly NCEP–NCAR reanalysis. Tracking is performed using an automated procedure, based on computer animation of the sea level...

  • Resolution Sensitivity of Cyclone Climatology over Eastern Australia Using Six Reanalysis Products*. Di Luca, Alejandro; Evans, Jason P.; Pepler, Acacia; Alexander, Lisa; Argüeso, Daniel // Journal of Climate;Dec2015, Vol. 28 Issue 24, p9530 

    The climate of the eastern seaboard of Australia is strongly influenced by the passage of low pressure systems over the adjacent Tasman Sea due to their associated precipitation and their potential to develop into extreme weather events. The aim of this study is to quantify differences in the...

  • Tropical Weather.  // Lakelander (Whitney, TX);11/4/2015, Vol. 28 Issue 42, p5 

    The article presents questions and answers on tropical weather including what is the difference between depression, cyclone, hurricane and tropical storm.

  • The Bowdle, South Dakota, Cyclic Tornadic Supercell of 22 May 2010: Surface Analysis of Rear-Flank Downdraft Evolution and Multiple Internal Surges. LEE, BRUCE D.; FINLEY, CATHERINE A.; KARTSTENS, CHRISTOPHER D. // Monthly Weather Review;Nov2012, Vol. 140 Issue 11, p3419 

    Mobile mesonet sampling in the hook echo/rear-flank downdraft (RFD) region of a tornadic supercell near Bowdle, South Dakota provided the opportunity to examine RFD thermodynamic and kinematic attributes and evolution. Focused analysis of the fifth low-level mesocyclone cycle that produced two...

  • AFTER-STORM THOUGHTS. Buckley Jr., WM. F. // National Review;11/15/1985, Vol. 37 Issue 22, p63 

    Reports on the effect of hurricane Gloria on the United States. States affected by the hurricane; Other natural calamities that affect the country; Strength of the hurricane; Environmental impact of the hurricane.

  • Analysis of conveyor belts in winter Mediterranean cyclones. Ziv, B.; Saaroni, H.; Romem, M.; Heifetz, E.; Harnik, N.; Baharad, A. // Theoretical & Applied Climatology;2010, Vol. 99 Issue 3/4, p441 

    The relevance of the midlatitude conveyor belt model to Mediterranean cyclones (MCs) is examined using data from two winters. Eight MCs, which exhibit typical midlatitude cyclone structure, were scrutinized and their conveyor belts were examined. The analysis was based on satellite imagery,...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics