Accession Number : ADA331977

Title :   Physics of the Ionosphere for OTH Operation; Chapter 3, OTH Handbook

Descriptive Note : Scientic rept.

Corporate Author : PHILLIPS LAB HANSCOM AFB MA

Personal Author(s) : Dandekar, B. S. ; Buchau, J. ; Whalen, J. A. ; Fougere, P.

PDF Url : ADA331977

Report Date : 09 NOV 1995

Pagination or Media Count : 104

Abstract : The purpose of this report is to familiarize the Environmental Assessment radar operators with (a) the complex ionospheric phenomena that vary with location (geography), time of the day, and season and (b) with the phenomena of solar origin that affect the environment surrounding the earth. The first section describes the basic features of the ionosphere, which are an integral part of the radar system, the mirror which enables the operation of the radar. The second section discusses the effect of solar and geomagnetic activity, which control the ionospheric behavior. The last section deals with the not so uncommon disturbed ionosphere, a part of which is due to the electrodynamics of the system, and the other is to events taking place far away from the earth, on the sun. The anticipated effects of these three kinds of phenomena on the radar performance are discussed, which should help the operator to determine if performance degradation is caused by the radar system or its environment.

Descriptors :   *IONOSPHERE, *PHYSICS, *HANDBOOKS, *OVER THE HORIZON RADAR, GEOMAGNETISM, DEGRADATION, PERFORMANCE(ENGINEERING), ENVIRONMENTAL IMPACT, OPERATION, DAY, SOLAR ACTIVITY, ELECTRODYNAMICS, SUN, SEASONS, IONOSPHERIC DISTURBANCES, RADAR OPERATORS.

Subject Categories : Atmospheric Physics
      Active & Passive Radar Detection & Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE