WW2010
University of Illinois

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

Online Guides
 
  introduction
 
  meteorology
 
> remote sensing
 
  reading maps
 
  projects, activities

Remote Sensing
 
  introduction
 
> radars
 
  satellites

Radars
 
  introduction
 
> radar basics
 
  imagery
 
  velocity patterns
 
  applications

Radar Basics
 
> radar signals
 
  wave properties
 
  signal scattering
 
  wavelength effects
 
  ray paths
 
  clear air returns
 
  target location
 
  scanning modes
 
  radial velocity

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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Sending and Receiving Signals
detecting a target

The radar creates an electromagnetic energy pulse which is focused by an antenna and transmitted through the atmosphere. Objects in the path of this electromagnetic pulse, called targets, scatter the electromagnetic energy. Some of that energy is scattered back toward the radar.

The receiving antenna (which is normally also the transmitting antenna) gathers this back-scattered radiation and feeds it to a device called a receiver.



Radars
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.

wave properties