Systematic ground-based magnetometer measurements from Thumba (8.47°N, 76.6°E) and Tirunelveli (8.73°N, 77.8°E), India, revealed a movement of the magnetic dip equator towards the south. The magnetic dip angle measured ...

In the present study, the technique of principal component analysis (PCA) is applied to analyze the hourly mean values of geomagnetic feld components D, H, and Z along an Indo-Russian chain of stations during the ...

A proton magnetometer has been designed using a microcontroller. Microcontroller is used to implement a least square based signal processing technique to estimate the precession frequency of proton precessions. The dependence ...

A prompt penetration electric field (PPEF) usually manifests itself in the form of an equatorial ionospheric electric field being in correlation with a solar wind electric field. Due to the strong Cowling conductivity, a ...

The discrete VLF chorus emissions recorded at low latitude ground station Jammu (geomag. lat. = 22°26′N, L = 1.17) are reported and their characteristics based on spectral analysis have been carried out. These discrete ...

The signatures of abrupt turnings of the vertical component of the interplanetary magnetic field (IMF), Bz, can be seen at equatorial latitudes through the prompt transmission of high-latitude electric fields to the lower ...

This study characterizes African equatorial scintillations at L-band frequency during the minimum and ascending phases of solar cycle 24. Three years’ (2009–2011) of amplitude scintillation data from three African equatorial ...

The first permanent magnetic observatories in colonial India were established by the East India Company and under the Göttingen Magnetic Union. One of the world’s longest running observatories was set up at Colaba (Bombay) ...