Jicamarca Radio Observatory
Erhan Kudeki and Santanu Bhattacharyya
Incoherent Scatter Data Base
Aeronomy Laboratory, University of Illinois at Urbana-Champaign
F-region ExB drifts data
exhibited at this site were collected during
the 1994 MISETA I Campaign and World Day Experiments
conducted since November 1995.
Data processing scheme is described in Kudeki et al. .
First select a date from the pull-down menu,
and then click on one of the display action buttons:
Internet Explorer 3.02 (or later versions).
- Upward and east- and west-beam line-of-sight ExB velocities are referred to as `w', `w_e', and
`w_w', respecively. Eastward
drift velocity computed from w_e and w_w is denoted as `u'.
Two independent reception antennas are used per beam direction. Consequently, four power estimates
`p_w0', `p_w1', `p_e0', and `p_e1' are available.
The term `power' refers to `signal+noise' normalized by
our estimate of the channel noise level.
For all the estimates integration time is 5 min and height resolution is 15 km.
- Statistical uncertainties (StDev) for parameter estimates are provided whenever possible.
A NaN or 0 value for StDev means that uncertainty estimate is not available.
For drift estimates a StDev value of NaN implies
that radar returns were due to coherent (e.g., spread-F, electrojet, space junk...) rather than incoherent scatter.
- If you open any of the data maps as an `xv' display (`open this image'
option when you click your right mouse button will this for you
if your browser has been set to handle gif files with xv command),
of your `xv' application (click on xv-display and look under `windows' menu)
will allow you to view the data map with a variety of color schemes.
- Binary data files `xxx.bin' can be downloaded from data directories
by clicking on file names.
The directories also include copies of CEDAR Data Base files `xxx.dat' written
Contact Erhan Kudeki (tel: 217 333 4153) for information on file formats.
Acknowledgements. We thank the staff and engineers
of Jicamarca Radio Observatory for their help with the radar
observations. The Observatory is operated by the Geophysical
Institute of Peru, Ministry of Education, with support
from the National Science Foundation of the United States.
This work is supported by the Division of Atmospheric Sciences
of the National Science Foundation through grant ATM 94-24361
to the University of Illinois.