Spread-F at Temperate and High Latitudes

Autor:	K. B. Kapasi
Rok vydání:	1966
Předmět:	Sunspot Auroral zone Earth's magnetic field Temperate climate Environmental science Polar Electrical and Electronic Engineering Atmospheric sciences Variation (astronomy) Charged particle Computer Science Applications Theoretical Computer Science Latitude
Zdroj:	IETE Journal of Research. 12:626-629
ISSN:	0974-780X 0377-2063
DOI:	10.1080/03772063.1966.11485388
Popis:	Spread-F at temperate and high latitudes has been analysed to study its variation with season, geomagnetic activity, sunspot activity and h'F. It is observed that at low temperate latitudes there is no correlation with geomagnetic activity. At high temperate latitudes spread-F is positively correlated with geomagnetic activity in winter and equinoxes while there is no correlation in summer. At auroral zone spread-F is positively correlated with geomagnetic activity but negatively correlated with sunspot activity. At polar latitudes spread-F occurrence is more than that in the auroral zone and there is no correlation with geomagnetic activity. The h'F variation also follows the spread-F variation. The maximum increase on disturbed days in auroral region favours the theory that charged particles are the cause of spread-F at high latitudes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b8d0463937eee86d2ca31c3f9b924c4e https://doi.org/10.1080/03772063.1966.11485388 Zobrazit plný text záznamu