WW2010
University of Illinois

Helper Menu
 
  exit helper
 
> helper page
 
  more detail

NOTE: We've guessed that you're not using a client that supports colored tables and have tried to compensate. Low graphics mode looks much better on clients that do... we recommend switching to Netscape 3.0 or Microsoft Internet Explorer.
.
Trough and Ridge Amplification
in response to lower level temperature advection

Warm advection beneath an upper level ridge causes it to build (increase in amplitude), while cold advection beneath an upper level trough will contribute to its deepening. The animation below highlights the amplification of ridge/trough system at 250 mb in response to intense thermal advection at 850 mb. The total time elapsed in the animation is 48 hours.

[Image: (200K)]

Observe how the ridge over the east gradually builds (raises northward) while the trough over the northern plains gradually deepens (sinks southward).


Terms for using data resources. CD-ROM available.
Credits and Acknowledgments for WW2010.
Department of Atmospheric Sciences (DAS) at
the University of Illinois at Urbana-Champaign.