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MOGPR

Magnetic Observatories and Geomagnetism from the Indian subcontinent and Polar Regions (MOGPR)

Chief Co-ordinator - Prof. Geeta Vichare & Members

The activities under MOGPR program have been classified under three main heads: 
(A) Scientific Research, 
(B) Instrument Development projects, 
(C) Upkeep and Maintenance of Magnetic Observatories, Data Processing, Analysis and Dissemination

The magnetic observatory network spread across the length and breadth of the country has contributed immensely in understanding the dynamics of ionospheric current systems over equatorial, low and high (Antarctica) latitudes, which are governed differently due to variable influence of earth and space processes.  The geomagnetic field variations on the surface of the Earth are due to internal as well as external sources. During geomagnetic quiet conditions, currents flowing in the ionosphere such as solar quiet (Sq) and equatorial electrojet (EEJ) mainly contribute as an external source, while long term variations of the geomagnetic field‐ also called as ‘secular variation’, originate inside the Earth's surface. In addition to ionospheric currents, various magnetospheric currents are also seen to form and flow.Equatorial electrojet (EEJ) is an enhanced current flowing close to the equator in a narrow latitudinal belt. The electrojet also controls the electrodynamics of the entire low latitudinal ionosphere. Using ground-based and LEO satellite-based data,IIG researchershave found that the latitudinal width of EEJ varies considerably with longitude. One of the most remarkable discoveries was the four peak structure observed in the longitudinal pattern of the equatorial electrojet, which is attributed to non‐migrating tides. The Indian magnetic observatory network has been utilized to study the Sq current system in detail, such as its intensity, seasonal variation, and latitudinal movement of Sq focus, etc.
A suite of magnetic observatory network along with various experiments over India and Antarctica provides a good comprehensive data-base to explore magnetosphere-ionosphere coupling. A magnetic substorm is a common space weather phenomena observed at Antarctica, which is a short duration disturbance for a period of one to few hours. It is characterized by an explosive energy released from the magnetotail. Substorm occurrences leading to ionospheric particle precipitation at the auroral latitudes cause enhanced absorption of cosmic noise signal, which can be monitored by Riometer. The role of interplanetary conditions in substorm processes and related particle precipitation is a topic of ongoing research. There is not muchunderstanding of drift of energetic charged particles during substorms. With the conjunction of satellite data and advanced ground instruments such as Imaging Riometer and magnetometers, it is possible to investigate as to what wave (EMIC or Chorus or Hiss or ULF) facilitates the loss of particles from the ring current at different local times.Aurora appears as diffused, continuous luminous oval-shaped bands near the geomagnetic poles due to the interaction of energetic particles with the Earth’s atmosphere; while airglow is the emission of photons from atmospheric species excited directly or indirectly by the solar radiation. Extremely and very low frequency (ELF/VLF) electromagnetic waves which are generated by lightning discharges, and man-made transmitters are used along with the Riometer, Airglow, Pulsations, Magnetometer data available at Maitri to understand the complex magnetosphere-ionosphere-atmosphere system.
The Global Electric Circuit (GEC), provides the fundamental coupling system of climatological parameters connecting the electrically disturbed region with fair weather regions. These connections are mainly through the formation of convective clouds and production of thunderstorm and electrified shower clouds. The fair-weather regions exist in the tropical, subtropical as well as in the Polar Regions. The global electrical signals are modulated by the local and regional electrical processes and these variations are different in nature in the tropical/subtropical and polar regions.


Figure : IIG Magnetic Observatorynetworkspreadacrossthelengthandbreadthofthecountry.

 

Name of the  Project : - Magnetic Observatories and Geomagnetism from the Indian Subcontinent and Polar Regions (MOGPR)

Name of the Chief Co-ordinators / Co-ordinators/staff/R.S etc

Designation

Posted at /Location

Landline No

Prof. Geeta Vichare
(Chief co-ordinator)

Professor - F

HQ, Panvel

022-2748 4060

Dr. Gopi K Seemala

Assoc. Professor

HQ, Panvel

022-2748 4056

Mr. Prasanna Mahavarkar

Reader

HQ, Panvel

022-27484084

Dr. S.K. Bhardwaj

Tech. Officer IV

IIG, Colaba campus

022-2215 1609

Mr. Atul Kulkarni

Tech. Officer III

IIG, Colaba campus

022-2215 1609

Mr. Rahul Rawat

Tech. Officer III

IIG, Colaba campus

022-2215 1609

Mrs. Madhavi Jadhavi

Tech. Officer IV

HQ, Panvel

022-2748 4049

Mr. Anoop K Soman

Tech. Officer I

IIG, Colaba campus

022-2215 1609

Mr. P.K. Birthare

Tech. Officer III

IIG, Colaba campus

022-2215 1609

Mr. Pritimaya Patro

Tech. Officer I

IIG, Colaba campus

022-2215 1609

Mr. Rakesh Nimje

Tech. Officer II

IIG, Colaba campus

022-2215 1609

Ms. Neetasha G

SRF

HQ, Panvel

022-27484156

Ms. Amrutha

JRF

HQ, Panvel

022-27484246

Mr. Sahil Pandey

JRF

HQ, Panvel

022-27485254

Ms. Ayushi Srivastava

JRF

HQ, Panvel

022-27484249

Mr. Vijay Dhapre

Tech. Officer IV

HQ, Panvel

022-2748 4037

Mr. S.K. Narkhade

Tech. Officer III

HQ, Panvel

022-2748 4043

Mr. Sachin Labde

Tech. Officer II

HQ, Panvel

022-2748 4040

Mr. Varun Dongre

Tech. Officer II

HQ, Panvel

022-2748 4042

Mr. Vijay Dhapre

Tech. Officer IV

HQ, Panvel

022-2748 4037

Mr. Zubair Shaikh

RA

HQ, Panvel

022-2748 4250

Mr. Vinayak Rane

RA

HQ, Panvel

022-2748 4007

Ms. Shipra Sinha

SRF

HQ, Panvel

022-2748 4254

Ms. Gauri Datar

SRF

HQ, Panvel

022-2748 4250

Ms. Sreelakshmi J.

SRF

HQ, Panvel

022-2748 4256

Ms. Pranali Thakur

JRF

HQ, Panvel

022-2748 4249

Ms. Ipsita Katual

JRF

HQ, Panvel

022-2748 4249

Out station

Dr. Sathish Kumar

Assoc. Professor

EGRL, Tirunelveli

0462-2521465/66

Dr. Navin Parihar

Assoc. Professor

EGRL, Tirunelveli

0462-2521465/66

Dr. C.P. Anil Kumar

Professor - E

EGRL, Tirunelveli

0462-2521465/66

Mr. K. Jeeva

Tech. Officer IV

EGRL, Tirunelveli

0462-2521465/66

Mr. K. Emperumal

Tech. Officer IV

EGRL, Tirunelveli

0462-2521465/66

Mr. P. Elango

Tech. Officer IV

EGRL, Tirunelveli

0462-2521465/66

Mr. S. Sankaran

Tech. Officer III

EGRL, Tirunelveli

0462-2521465/66

Mr. C. Selvaraj

Tech. Officer III

EGRL, Tirunelveli

0462-2521465/66

Dr. Rajesh Singh

Professor - E

KSKGRL, Prayagraj

0532-2567134

Mr. K.N. Bhardwaj

Sr. Tech. Assistant

KSKGRL, Prayagraj

0532-2567134

Mrs. Shyamoli Mukherjee

Tech. Officer IV

MO Alibag

02141 222009

Dr. Abhishek Kumar

Tech. Officer I

MO Alibag

02141 222009

Mr. Pranjal Saikia

Sr. Tech. Assistant

MO Alibag

02141 222009

Mr. Anand Bhingare

Tech. Officer I

MO Alibag

02141 222009

Dr. Anil Iype

Tech. Officer IV

MO Pondicherry

0413-2655717

Mr. P. Sheik Bareeth

Tech. Officer I

MO Pondicherry

0413-2655717

Mr. L.V. Ramana

Tech. Officer II

MO Visakhapatnam

0891-2538129

Mr. Siddharth Dimri

Tech. Officer I

MO Visakhapatnam

0891-2538129

Mr. Debkumar Bhadra

Tech. Officer II

MO Portblair

03192-281944

Mr. P. Ramana Murthy

Sr. Tech. Assistant

MO Portblair

03192-281944

Mr. B. Laxman Kumar

Tech. Officer I

MO Nagpur

0712-2555331

Mr. Awadesh Kumar

Tech. Officer I

MO Nagpur

0712-2555331

Mr. N. Ghadai

Tech. Officer I

MO Rajkot

0281-2575192

Mr. Gopal Rathod

Tech. Officer I

MO Rajkot

0281-2575192

Mr. Momin Abdulrehman

Tech. Officer III

MO Jaipur

0141-2704303

Mr. Mahesh Kumar

Tech. Officer I

MO Jaipur

0141-2704303

Mr. Rashid Mehraj

Tech. Officer I

MO Gulmarg

0193-4214051

Mr. Javid Ahangar

Tech. Officer II

MO Gulmarg

0193-4214051

Mr. Meter B Nongkhlaw

Tech. Officer II

MO Shillong

0364-256 0112

Mr. Subrato Moulik

Tech. Officer III

MO Silchar

03842-270800

Mr. Pijush Das

Tech. Officer II

MO Silchar

03842-270800