WW2010
University of Illinois

WW2010
 
  welcome
 
  online guides
 
  archives
 
  educational cd-rom
 
  current weather
 
> about ww2010
 
  index

About WW2010
 
  welcome
 
  history
 
  publications
 
> user's guide
 
  updates
 
  acknowledgments
 
  terms for data use
 
  clients & cookies

User's Guide
 
  project summary
 
  content resources
 
> core technologies

Core Technologies
 
  overview
 
> efficient navigation
 
  multiple interfaces

Efficient Navigation
 
  introduction
 
> example: cold fronts

Example: Cold Fronts
 
  definition
 
> precipitation
 
  cyclones

User Interface
 
  graphics
> text

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.
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From The Developers...

One of the goals of WW2010 is to provide easy access to a large database of real time data and instructional materials. For this to occur, all resources must be carefully organized to ensure quick and easy access by the user. The hierarchical menu structure we're implementing is forcing us to do just that.


Precipitation Along a Cold Front
by lifting of warm moist air ahead of it

The animation below is a vertical cross section depicting the development of precipitation ahead of and along a cold front. The surging blue region represents the cold air mass behind the cold front (solid blue line) and the yellow areas indicate the warm moist air mass ahead of the front.

[Image: animation depicting precipitation development along a cold front (96K)]
** Press "Reload" to restart the animation **

As the cold air mass propagates, it lifts the warmer less dense air ahead of it (red arrows). The air cools as it rises and the moisture condenses to produce clouds and precipitation ahead of and along the cold front. In contrast to lifting along a warm front, upward motions along a cold front are typically more vigorous, producing deeper clouds and more intense bands of showers and thunderstorms. However, these bands are often quite narrow (a couple hundred kilometers across) and move rapidly just ahead of the cold front.



definition
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.

cyclones