E-mail: aditidas16@rediffmail.com, aditidas16@gmail.com
Educational Qualification: M.Sc., Ph.D.
Awarded Ph.D. Degree in Radio Physics and Electronics in 2011.
The title of the thesis:
‘Studies of Equatorial Ionospheric Irregularities-Characterization and Prediction’.
Qualified NET (LS) and GATE-2001
Extra Qualification: 1) Certificate in C, C++ & UNIX, Attended CIW Application Developer Course.
2) Passed B.Ed. in 2000.
Research Experience:
· Worked as JRF in the Research Project “Propagation Effect on Global Positioning Systems in India” under the supervision of Prof. Ashish DasGupta in the Department of Radio Physics & Electronics from Dec 2001 to May 2003.
· Worked as JRF in the Research Project “Development of Ionospheric Total Electron Content (TEC) Models and its Validation with Actual Data for Satellite Based Augmentation System (SBAS) in the Indian Zone” under the supervision of Prof. Ashish DasGupta in the Department of Radio Physics & Electronics from June 2003 to July 2005.
· Worked as JRF in the Research Project “A Study of the Interrelationship of Equatorial Scintillation, Ambient Ionization and Electrojet” in S. K. Mitra Center for Research in Space Environment under the supervision of Prof. Ashish DasGupta from July 2005-March 2007.
· Worked as SRF in the CSIR sponsored research project “Observation of equatorial irregularities with MST radar and GPS within a common Ionospheric volume” in S. K. Mitra Center for Research in Space Environment under the supervision of Prof. Ashish DasGupta from April 2007- March 2010.
· Worked as SRF in the ISRO sponsored research project ‘Studies of Space Weather Events with GPS, Satellite Beacon and Backscattered Radar at NARL’, in S. K. Mitra Center for Research in Space Environment under the supervision of Dr. Ashik Paul from September, 2010-September2011
· Worked as SRF in the ISRO sponsored research project “Triggering and characterization of equatorial ionospheric irregularities” in S. K. Mitra Center for Research in Space Environment under the supervision of Dr. Ashik Paul from September, 2011-March 2012.
· Worked as Research Associate in CSIR sponsored research project ‘Peculiarities of amplitude and phase scintillations of GPS transmissions’during April 2012-April 2014.
Teaching experience:
· Taught in M.Tech. ‘Space Sicence and Communication’ Special Paper during one semester in Radio Physics and Electronics in 2012.
· At present teaching as Guest Lecturer in Physics at Surendranath College and Vidyasagar College. Also taking distant education classes for M.Sc.Physics at Jogesh Chandra College.
· Also taking classes in Physics at RCC Institute of Information Technology as Guest Faculty from March 2015.
Seminar/Symposium Paper:
1) Modeling the low latitude ionospheric electron content: A first step, S.K.Chakraborty, A.Paul, A.Das and A.DasGupta, (HOT-2003), February 3-5, 2003, Kolkata, India.
2) Solar and Electrojet Control Over Equatorial Ionization Anomaly, S.K.Chakraborty, A. Paul and A. Das, INCURSI 2003, November 27-29, 2003,New Delhi, India.
3) Forecasting communication and Navigation System Outages during post sunset hours in the equatoruial region, A.Paul, A. Das, S. Ray and A. DasGupta, INCURSI 2003, November 27-29, 2003, New Delhi, India.
4) Multitechnique observation of equatorial irregularities in the Indian zone, A. Das, A. DasGupta, S. Ray, P. B. Rao, A. K. Patra and P. V. S. Rama Rao, NSSS-2004, February 17-20, 2004, Kottayam, Kerala, India
5) Longterm variation of Total Electron Content near the northern crest of the equatorial anomaly, S. K. Chakraborty, A. Paul and A. Das, NSSS-2004, February 17-20, 2004 Kottayam, Kerala, India.
6) Observations of Equatorial Spread F (ESF) using the Giant Meterwave Radio Telescope (GMRT), Global Positioning System (GPS) and Geo Stationary Satellites, A. DasGupta, A. Paul, A. Das and S. Ananthakrishnan, URSI GA, October 23-29, 2005, New Delhi, India.
7) Ionospheric Perturbations observed by the GPS following the December 26th, 2004, Sumatra-Andaman Earthquake, A. DasGupta, A. Das and D. Hui, 2005 IGU conference, December 7-9, 2005, Bhopal, India.
8) Slant and Vertical Total Electron Content as Observed from GAGAN stations, A.Das, A. Paul and A. DasGupta, NSSS06, Feb09-12, 2006,Vishakhapatnam, India.
9) Ionosphere near the anomaly crest in the Indian Zone during the magnetic storm of March 13, 1989, S. K. Chakraborty, A. Paul, A. Das and D. Hui, NSSS06, Feb09-12, 2006,Vishakhapatnam, India.
10) Ionospheric Precursors of Some Recent Strong Earthquakes from GAGAN Obseravtions, A. Das, D. Hui and A. DasGupta, CODEC 2006, December 18-20, 2006, Kolkata, India.
11) Ionospheric Precursors to Earthquakes observed from Global Positioning System (GPS) Total Electron Content (TEC) Data, A. Das, D. Hui and A. DasGupta, INCURSI 2007, February 21-24, 2007, New Delhi, India.
12) Ionospheric Response to four recent strong earthquakes from GPS TEC observations, A. DasGupta, A. Das and D. Hui, IBSS-07, June 11-15, 2007, Italy.
13) Ionospheric response to earthquakes from GPS TEC observations, A. Das, A. DasGupta and T .Das, NSSS- 2008, February 26-29, 2008, Ooty, India.
14) Modeling the occurrence of scintillations at L band using Neural Network, A. Das, S. Ray and A. DasGupta, NSSS-2010, February 24-27, 2010, Rajkot, India.
15) Some observations on the effects of solar eclipse on 22 July, 2009, T. Das, D. J. Bhaumick, A. Das, S. Ray, A. DasGupta and A. Paul, NSSS-2010, February 24-27, 2010, Rajkot, India.
16) Characteristics of SBAS grid sizes around the northern crest of the Equatorial Ionization Anomaly, A. Paul, A. Das and A. DasGupta, BSS-2010, June 7-11, 2010, Barcelona, Spain.
17) Multistation Characterization of EIA and ESF using dual frequency GPS receivers in the lead up to the 24th solar maximum, A. Das, D. Sur, S. Ray and A. Paul, NSSS2012, February 14-17, 2012, Tirupati, India.
18) Effect of Geomagnetic field line geometry on the GPS Satellite Signal Propagation, A. DasGupta, A. Guha, A. Das and S. Ray, NSSS 2012, February 14-17, 2012, Tirupati, India.
19) Characterization of the effects of equatorial ionospheric irregularities on Satellite- Based navigation around the northern crest of the equatorial ionization anomaly in the lead up to the solar maximum, A. Paul, B. Roy, A. Das, T. Das, S. Ray and A. DasGupta, 39th COSPAR general assembly, July 14-22, 2012, Mysore, India.
20) Zonal dependence of periodic structures in TEC around the northern crest of EIA, A. Das, B. Roy, and A. Paul, Regional Conference on Radio Science (RCRS), January 2-5, 2014, Pune, India.
21) Frequency diversity techniques applied to GNSS under adverse ionospheric conditions, A. Das, B. Roy and A. Paul, NSSS 2014, January 29-February 01, 2014, Dibrugarg,Assam,India.
22) Impact of multiple frequency scattering on GNSS performance under adverse ionospheric conditions, A. Das and A. Paul, 40th COSPAR scientific assembly, August 2-10, 2014, Moscow.
23) Frequency diversity techniques applied to GNSS under adverse at ionospheric conditions, A. Das and A. Paul, 31st USRI General Assembly, August 16-23, 2014, Beijing, China.
24) Solar cycle dependence of scintillation observed from the equatorial anomaly crest like Calcutta, A. Das and A. Paul, Faculty Development Programme on Fundamentals and advances of solid state matters for technological applications, organized by RCC IIT, Calcutta, July 06-10, 2015.
List of papers published in the referred Journal:
1) Paul, A., S. K. Chakraborty, A. Das and A. DasGupta.: Estimation of Satellite-Based Augmentation System Grid Size at Low Latitudes in the Indian Zone, Navigation, 52(1), 15-22, Spring 2005.
2) DasGupta, A., A. Das, D. Hui,.: Ionospheric perturbations observed by the GPS following the December 26th, 2004 Sumatra-Andaman earthquake, Earth Planets Space, 58, 167-172, 2006.
3) DasGupta A., A. Paul, S. Ray, A. Das, and Ananthakrishnan S.: Equatorial Bubbles as observed with GPS measurements over Pune, India, Radio Sc., vol 41, RS5S28 doi: 10. 1029/2005RS003359.2006.
4) DasGupta A., A. Paul and A. Das, Ionospheric Total Electron Content (TEC) Studies with GPS in the Equatorial Region, IJRSP, vol 36, 278-292, 2007.
5) DasGupta A., A. Paul, S. Ray, A. Das , and Ananthakrishnan S.: A study of precursors to equatorial spread F using the Giant Meterwave Radio Telescope, Radio Sc., vol 43, RS5002,doi:10.1029/2007RS003667,2008.
6) Das A., A. DasGupta and S. Ray, Characteristics of L-band (1.5 GHz) and VHF (244 MHz) amplitude scintillations recorded at Kolkata during 1996-2006 and development of models for the occurrence of scintillations using Neural Network, Communicated to J. Atmos. Sol. Terr. Phys.,72, 685-704,2010.
7) Paul, A., A. Das and A. DasGupta, Characteristics of SBAS grid sizes around the northern crest of the equatorial ionization anomaly, J. Atmos. Sol. Terr. Phys., 73, 1715-1722, 2011.
8) Paul, A., B. Roy, S. Ray, A. DasGupta and A. Das, Characteristics of Intense Space Weather Events as observed from a Low Latitude Station during Solar Minimum, J. GeoPhys. Res., 116, A10307,doi:10.1029/2010JA016330, 2011.
9) Paul, A., T. Das, S. Ray, A. Das, D. Bhowmick and A. DasGupta, Response of the equatorial ionosphere to the total solar eclipse of 22 July 2009 and annular eclipse of 15 January 2010 as observed from a network of stations situated in the Indian longitude sector, Ann. GeoPhys., 29, 1955-1965, 2011.
10) Das, A. and A. DasGupta, Precursors of Equatorial Spread F observing GPS TEC data from different GAGAN stations in India, Adv. Space Res., 50, 167-181.
11) Das, A., K. S. Paul, S. Halder, K. Basu and A. Paul, Characterization of Equatorial Ionization Anomaly (EIA) in relation to transionospheric satellite links around the northern crest in the Indian longitude sector, Ann. GeoPhys.,32, 91-97, 2014.
12) Ray, S., B. Roy and A. Das, Occurrence of equatorial spread F during intense geomagnetic storms, Radio Sc., 10.1002/2014RS005422, 2015.
13) Paul., K. S., Das., A., Ray, S., and Paul., A., Researchpaper Characteristics of Total Electron Content (TEC) observed from a chain of stations near the northern crest of the Equatorial Ionization Anomaly (EIA) along 88.5°E meridian in India, J. Atmos. Sol. Terr. Phys.,137, 17-28, 2016.
14) Paul, A., Paul, K. S. And Das, A., Impact of multiconstellation satellite signal reception on performance of satellite-based navigation under adverse ionospheric conditions, Radio Sci., 52, 416–427, doi:10.1002/2016RS006076, 2017.
15) Guha Bose, A., Das, A., Chowdhury, S and Deb. Argha, Studies of scintillations and TEC variations with GPS satellite links together with soil radon anomalies preceding Nepal earthquakes of April–May 2015, Natural Hazards, 112, 1137-1163, 2022.
16) Das, A., RADAR and its application in Atmospheric and Ionospheric Research, SAYAM, Vol 1, Issue II, page 7-15, 2023.
Editorial Experience : Editor Member of the Teacher’s Council Journal (Centurian) of Asutosh College in 2022.
Membership of learned Society: Life member of FOSET (Forum of Scientists, Engineers and Technologists), Membership No: LM/2010-2036.