Heat flux from the core to mantle provides driving energy for convection thus powering plate tectonics, and contributes a significant fraction of geothermal heat budget. Indirect estimates core-mantle boundary flow are typically based on petrological evidence temperature, interpretations temperatures indicated by seismic travel times, experimental measurements mineral melting points, physical m...

Smartphone-based WiFi ranging using fine time measurement (FTM) is severely impacted by Non-line-of-sight (NLoS) environments, which causes significant positioning errors. To address this problem, we propose a novel FTM (WFP) approach based on the geomagnetism and enhanced genetic algorithm (EGA), can simultaneously execute localization compensation. Based distribution of error in NLoS semipara...

The World Data Centre for Geomagnetism, Mumbai is functioning as a division of Indian Institute of Geomagnetism, Navi Mumbai since its full fledges activities commenced in 1991 in coordination with International Council of Scientific Union (ICSU) Panel on World Data Centres. The responsibility of the compilation of final hourly absolute values of nine of the Indian magnetic observatories and de...

This paper summarizes the results of an extensive investigation of the relation between Kp and the intensity of the emission-line corona. We consider the coronal intensity in the northern and the southern solar hemispheres separately, and find that the intensity in the hemisphere on the same side of the solar equator as the earth shows the closer relation to Kp. We discuss the identification of...

On the basis of more than 48 years of morphological analysis of yearly and monthly values of the sunspot number, the aa index, the solar wind speed and interplanetary magnetic field, we point out the particularities of geomagnetic activity during the period 1996-2009. We especially investigate the last cycle 23 and the long minimum which followed it. During this period, the lowest values of the...