منابع مشابه
Morphological aspects of a new type of counter electrojet event
The study describes the time and space morphologies of a rather new type of counter electrojet event on the basis of data from the excellent chain of magnetic and ionospheric observatories along the IndoRussian longitude sector. Abnormally large westward currents are observed during almost the whole of the daytime hours on a series of days. These events do not form any vortices in the current s...
متن کاملThe afternoon counter-electrojet current system along the 75°E meridian during the IEEY
In the present study, the technique of principal component analysis (PCA) is applied to analyze the hourly mean values of geomagnetic field components D, H, and Z along an Indo-Russian chain of stations during the International Equatorial Electrojet Year (IEEY) from January 1992 to June 1993. This technique (PCA) is found to be suitable for separating the normal electrojet (NEJ) and counter-ele...
متن کاملThe Late Samuel Tuke, Esq., of York
worth, perhaps we may say, in all. It is one of the most interesting features of the social framework of Britain, that while it recognises the distinctions of feudal rank, and records the exit of each worthy head of a time-honoured house, as in some sort the property of the nation, not the less through the various gradations of the scale does it appreciate the successful citizen, the independen...
متن کاملStructure of the polar electrojet antenna
Field experiments were performed in Gakona, Alaska in August and November 2002. The ionospheric conductivity was periodically perturbed using amplitude-modulated radiation from the HAARP HF transmitter (1 MW power, 14 dB gain, 3.3–5.8 MHz carrier, 0.1–40 kHz modulation). The conductivity perturbations lead to perturbations to the natural flow of electrojet current in the lower ionosphere, resul...
متن کاملA Comparison of Equatorial Electrojet in Peru and East Brazil
The paper describes the characteristics of the equatorial electrojet at Huancayo (HUA, 12.1 o S, 75.3 o W, inclination 1.5 o N, declination 1.0 o E) in western side of South America, where the geomagnetic field is aligned almost along the geographic meridian, and at Itinga (ITI, 4.3 o S, 47.0 o W, inclination 1.4 o N, declination 19.3 o W) in eastern part of South America, where the geomagnetic...
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ژورنال
عنوان ژورنال: Journal of Atmospheric and Terrestrial Physics
سال: 1973
ISSN: 0021-9169
DOI: 10.1016/0021-9169(73)90009-3