Latitudinal variations of nighttime enhancements in total electron content

Journal Article · Wed Apr 01 04:00:00 EST 1987 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/JA092iA04p03436· OSTI ID:5596326

Balan, N; Rao, P B ^[1]

---

1. Univ. of Kerala, Trivandrum (India)

Latitudinal variations of the various characteristics of nighttime anomalous enhancements in total electron content (TEC) are presented by considering TEC data from the ATS series of satellites for a 2-month period from a number of stations in the northern hemisphere extending from 2{degree} to 63{degree} dip latitude. The latitudinal variations of the various TEC enhancement characteristics are found to be strikingly similar, and they reveal a pattern of cyclic variation with two distinct minima, one at 30{degree}N and the other at 60{degree}N (dip latitude). The TEC enhancements show a strong positive correlation with geomagnetic activity at middle and high latitudes and no significant correlation at low latitudes. The observed pattern of the latitudinal variations of the TEC enhancements is discussed in the light of the potential source mechanisms.

• OSTI ID: 5596326
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 92:A4; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
DATA ANALYSIS
EARTH ATMOSPHERE
ELECTRON DENSITY
GEOGRAPHICAL VARIATIONS
GLOBAL ASPECTS
IONOSPHERE
LATITUDE EFFECT
MAGNETIC STORMS
PLANETARY IONOSPHERES
SATELLITES
VARIATIONS