Archana Bhattacharyya

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Archana Bhattacharyya
Archana Bhattacharyya .jpg
Born1948 (age 7071)
ResidenceIndia
NationalityIndian
Alma mater University of Delhi
Known forIonospheric Physics and Geomagnetism
Scientific career
InstitutionsIndian Institute of Geomagnetism

Archana Bhattacharyya (born 1948) is an Indian physicist. She specializes in the field of ionospheric physics, geomagnetism, and space weather and is Director of the Indian Institute of Geomagnetism, Navi Mumbai. [1] [2]

Physicist scientist who does research in physics

A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate causes of phenomena, and usually frame their understanding in mathematical terms. Physicists work across a wide range of research fields, spanning all length scales: from sub-atomic and particle physics, through biological physics, to cosmological length scales encompassing the universe as a whole. The field generally includes two types of physicists: experimental physicists who specialize in the observation of physical phenomena and the analysis of experiments, and theoretical physicists who specialize in mathematical modeling of physical systems to rationalize, explain and predict natural phenomena. Physicists can apply their knowledge towards solving practical problems or to developing new technologies.

Earths magnetic field Magnetic field that extends from the Earths inner core to where it meets the solar wind

Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from the Earth's interior out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun. The magnetic field is generated by electric currents due to the motion of convection currents of molten iron in the Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo. The magnitude of the Earth's magnetic field at its surface ranges from 25 to 65 microteslas. As an approximation, it is represented by a field of a magnetic dipole currently tilted at an angle of about 11 degrees with respect to Earth's rotational axis, as if there were a bar magnet placed at that angle at the center of the Earth. The North geomagnetic pole, currently located near Greenland in the northern hemisphere, is actually the south pole of the Earth's magnetic field, and conversely.

Space weather

Space weather is a branch of space physics and aeronomy, or heliophysics, concerned with the time varying conditions within the Solar System, including the solar wind, emphasizing the space surrounding the Earth, including conditions in the magnetosphere, ionosphere, thermosphere, and exosphere. Space weather is distinct from but conceptually related to the terrestrial weather of the atmosphere of Earth. The term space weather was first used in the 1950s and came into common usage in the 1990s..

Contents

Education

Bhattacharyya completed B.Sc (Hons) and M.Sc in Physics from the University of Delhi in 1967 and 1969, respectively. She also held a National Science Talent Scholarship (1964–69). She received PhD degree in Physics from Northwestern University (1975), working in the area of theoretical condensed matter physics. [2]

University of Delhi Central university located in New Delhi, India

The University of Delhi, informally known as Delhi University (DU), is a collegiate public central university, located in New Delhi, India. It was founded in 1922 by an Act of the Central Legislative Assembly. As a collegiate university, its main functions are divided between the academic departments of the university and affiliated colleges. Consisting of three colleges, two faculties, and 750 students at its founding, the University of Delhi has since become India's largest institution of higher learning and among the largest in the world. The university currently consists of 16 faculties and 86 departments distributed across its North and South campuses. It has 77 affiliated colleges and 5 other institutes with an enrollment of over 132,000 regular students and 261,000 non-formal students. The Vice-President of India serves as the University's chancellor.

Northwestern University Private research university in Illinois, United States

Northwestern University (NU) is a private research university based in Evanston, Illinois, United States, with other campuses located in Chicago and Doha, Qatar, and academic programs and facilities in Miami, Florida; Washington, D.C.; and San Francisco, California. Along with its undergraduate programs, Northwestern is known for its Kellogg School of Management, Pritzker School of Law, Feinberg School of Medicine, Bienen School of Music, Medill School of Journalism, and McCormick School of Engineering and Applied Science.

Condensed matter physics branch of physics

Condensed matter physics is the field of physics that deals with the macroscopic and microscopic physical properties of matter. In particular it is concerned with the "condensed" phases that appear whenever the number of constituents in a system is extremely large and the interactions between the constituents are strong. The most familiar examples of condensed phases are solids and liquids, which arise from the electromagnetic forces between atoms. Condensed matter physicists seek to understand the behavior of these phases by using physical laws. In particular, they include the laws of quantum mechanics, electromagnetism and statistical mechanics.

Career

Bhattacharyya joined the Indian Institute of Geomagnetism (IIG), [3] Mumbai in 1978. She worked with the group of KC Yeh at the University of Illinois, Urbana-Champaign during 1986-87 and during 1998–2000 she was a Senior NRC Resident Research Associate at the Air Force Research Laboratory in Massachusetts, USA. She was the Director of IIG during 2005–2010. Currently, she is an Emeritus Scientist at IIG. [2]

The Indian Institute of Geomagnetism is an autonomous research institution established by the Government of India's Department of Science and Technology. The facility is engaged in basic and applied research in geomagnetism, as well as allied areas of geophysics, atmospheric physics and space physics, as well as plasma physics. The Institute currently operates 12 magnetic observatories and actively participates in the Indian Antarctic Program.

Mumbai Megacity in Maharashtra, India

Mumbai is the capital city of the Indian state of Maharashtra. As of 2011 it is the most populous city in India with an estimated city proper population of 12.4 million. The larger Mumbai Metropolitan Region is the second-most-populous metropolitan area in India, with a population of 21.3 million as of 2016. Mumbai lies on the Konkan coast on the west coast of India and has a deep natural harbour. In 2008, Mumbai was named an alpha world city. It is also the wealthiest city in India, and has the highest number of millionaires and billionaires among all cities in India. Mumbai is home to three UNESCO World Heritage Sites: the Elephanta Caves, Chhatrapati Shivaji Maharaj Terminus, and the city's distinctive ensemble of Victorian and Art Deco buildings.

Air Force Research Laboratory scientific research organization operated by the United States Air Force

The Air Force Research Laboratory (AFRL) is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of affordable aerospace warfighting technologies, planning and executing the Air Force science and technology program, and providing warfighting capabilities to United States air, space, and cyberspace forces. It controls the entire Air Force science and technology research budget which was $2.4 billion in 2006.

Awards and honours

The Indian Geophysical Union is the Government of India's scientific body responsible for all activities related with Earth Science System such as seismology, magnetism, meteorology, geodesy, volcanology, oceanography, hydrology and tectonophysics and to encourage the study of and research in geophysical problems and to provide media for publication of the results. It is situated near another Geophysical Centre Indian National Centre for Ocean Information Services, Hyderabad.

The Indian Academy of Sciences, Bangalore was founded by C. V. Raman, and was registered as a Society on 24 April 1934. Inaugurated on 31 July 1934, it began with 65 founding fellows. The first general meeting of Fellows, held on the same day, elected Raman as President, and adopted the constitution of the Academy.

The National Academy of Sciences, India, established in 1930, is the oldest science academy in India. It is located in Prayagraj, Uttar Pradesh.

Research interests

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References

  1. "IAS- Archana Bhattacharyya" . Retrieved 15 March 2014.
  2. 1 2 3 4 "INSA - Archana Bhattacharyya" . Retrieved 15 March 2014.[ permanent dead link ]
  3. 1 2 "Dr A Bhattacharya". iigm.res.in. Archived from the original on 15 March 2014. Retrieved 15 March 2014.