Annual Report 1999-2000
Indian Institute of Geomagnetism, Mumbai
Objectives and functions of the Institute
- To establish, maintain and manage laboratories, workshops
and/or other units to assist scientific research in Geomagnetism.
- To record, collect, scrutinise, process, publish and supply
- To undertake the design, development, construction calibration
and standardisation of magnetic instruments.
- To organise training facilities and to train the staff
of the Institute and other interested organisations in geomagnetic
work and arrange lectures, seminars and symposia in pursuance
of the academic work of the Institute and for diffusion
of scientific knowledge.
- To invite Scientists from India and abroad who are actively
engaged in research in geomagnetism, to deliver lectures
and participate in the research activities of the Institute.
- To institute and award fellowships, scholarships, prizes
- To co-operate and collaborate with other National and/or
foreign institutions and international organisations in
the field of Geomagnetism.
- To publish scientific papers, bulletins and journals.
- To disseminate information on matters concerning geomagnetism
Areas of Research
IIG's research activities include studies of
geomagnetic activity including Sq variations, electrojet and
counter electrojet, geomagnetic and substorms, solar wind-magnetosphere
ionosphere coupling, boundary layer waves, Sun-earth connection
and Solar-Terrestrial relationship, space plasma physics,
global electric circuit, dynamical and electrodynamical coupling
between atmospheric layers, geomagnetic deep sounding (GDS)
using magnetovariational (MV) and magnetotelluric (MT) and
deep resistivity techniques, Earthquake precursors using electromagnetic
methods, marine and paleomagnetism and crustal dynamics using
global positioning system (GPS).
The salient features of the achievements during
1998-99 are given below:
- A new geomagnetic observatory was commissioned at 'Silchar'
in November 1998.
- Nine geomagnetic observatories and the INTERMAGNET functioned
uninterruptedly during this period. Geomagnetic and ionospheric
absorption measurements were continued throughout the year
- Airglow observations at Kolhapur, studies on geomagnetic
pulsations, ionospheric scintillations, substorm dynamics,
ionosphere-thermosphere coupling using PR radar, and numerical
simulation of geotail dynamics were vigorously pursued
- A seminar on "Integrated Geological, Seismological
and Co-seismic investigations in the Earthquake Prone Regions
of the India" was organised at the Institute in December
1998. 20 Scientists from various organisations participated
in the deliberations.
- GPS/Magnetotelluric/Magnetic surveys were undertaken in
several seismically active zones of the country including
Khandwa region of M.P. and Chamoli of U.P. Magnetic Petrological
investigations were completed in Dharwar Craton. Ground
magnetic data was collected from the Cauvery & Krishna
- PC controlled Proton Magnetometer (PPM) and Vector Proton
Magnetometer was fabricated. Modifications to Fluxgate Magnetometer
design were carried out.
- A Geomagnetic Research Laboratory (a regional center of
the Institute for Solid Earth Geomagnetism) is being set-up