Accession Number:

ADA402979

Title:

Measuring Electrodynamics of the Ionosphere by Digital Ionosondes and Other Techniques

Descriptive Note:

Annual rept. 24 Sep 1998-23 Sep 1999

Corporate Author:

MASSACHUSETTS UNIV LOWELL CENTER FOR ATMOSPHERIC RESEARCH

Personal Author(s):

Report Date:

2001-03-01

Pagination or Media Count:

38.0

Abstract:

Ionospheric sounding in the equatorial and high latitude ionosphere and the development of new analysis techniques shows new ways for ionospheric diagnostics comparison of Digisonde ionograms and drift measurements with optical all sky images provides an explanation of the equatorial anomaly spread F signatures on ionograms, and their relation to satellite scintillation effects. For the auroral and polar cap region the Generalized Digisonde Drift Analysis GDDA program was developed to increase drift velocity fields. This facilitated the monitoring of polar patches. A new ARTIST4 system was developed for the AF Digisondes and the DISS system to strengthen the quality of the data and the station networking. All output data are now in the SAO 4.2 format. ARTIST4 now calculates an estimated topside profile with a scale height derived from the shape of the bottomside profile. Concept and breadboard designs of a topside sounder were developed and tested at the Millstone Hill digisonde site. These tests showed successful implementation of pulse and chirp waveforms for a topside advances sounder TOPAS.

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE