Automatic Geophysical Observatories

Continued progress in understanding the Sun's influence on the structure and dynamics of the Earth's upper atmosphere depends upon increasing knowledge of the electrodynamics of the polar cap region and the key role that this region plays in coupling the solar wind with the Earth's magnetosphere, ionosphere and thermosphere. Measurements that are central to understanding include the electric field convection pattern across the polar cap and knowledge of the response of the atmosphere to the many forms of high-latitude wave and particle energy inputs during both geomagnetically quiet and disturbed situations.

The U.S. AGO network, which consists of a suite of nearly identical instruments (optical and radio wave auroral imagers, magnetometers, and narrow and wide band radio receivers) at six locations on the polar plateau, actively studies the coupling of the solar wind to ionospheric and magnetospheric processes, emphasizing polar cap dynamics, substorm phenomena, and space weather.

AGO Information

Field Procedures and Plans

Related Links

Contact Information

T.J. Rosenberg and A.T. Weatherwax
Institute for Physical Science and Technology
University of Maryland, College Park, MD 20742-2431
Voice: (301) 405-4835
FAX: (301) 314-9363
We gratefully acknowledge support from the National Science Foundation