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Author Rastogi, R. G. ♦ Pathan, B. M. ♦ Rao, D. R. K. ♦ Sastry, T. S. ♦ Sastri, J. H.
Source CiteSeerX
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Indian Continent ♦ Crust South ♦ Night Hour ♦ Induction Vector ♦ Geomagnetic Field ♦ Geomagnetic Observatory ♦ Polar Latitude ♦ Unique Network ♦ Large Positive Impulse ♦ Ssc Frequency ♦ Latitudinal Profile ♦ Storm Sudden Commencement ♦ Nighttime Event ♦ Mag-netic Equator ♦ Prominent Decrease ♦ Nighttime Hour ♦ Daytime Enhancement ♦ Equatorial Station ♦ Source Field ♦ Equatorial Latitude ♦ Geomagnetic Longitude ♦ Extended Equatorial Latitude ♦ North Pole ♦ Disturbed Electric Field
Description The unique network of geomagnetic observatories along 145◦E geomagnetic longitude extending from the mag-netic equator to the north pole has enabled to study the latitudinal profiles of Storm Sudden Commencement (SSC) amplitudes in the three components H, Y and Z of the geomagnetic field separately for the daytime and nighttime events. An abnormally large positive impulse of Z is observed at the equatorial stations with maximum at Trivan-drum during the daytime as well as the nighttime hours suggesting large induced current within the earth’s crust south of Indian continent. The daytime enhancement of SSC (H) at the extended equatorial latitudes is undoubtedly due to the disturbed electric field generated by the magnetopause current communicated to the equator through polar latitudes. A prominent decrease of SSC (H) during night hours and the ‘induction vector ’ at SSC frequencies at equatorial latitudes are indicative of the concentration of induced current from source fields extended in altitudes. 1.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2001-01-01
Publisher Institution in H, Y and Z at Indian geomagnetic observatory chain. Earth Planets Space 53, 121