Dr. Abhay Kumar Singh

Professor
Ph D (BHU)
Contact Information:
Tel. Office: +91-542-6701563 Mob.:+91-9415303722 Res.: +91-542-2575861
Fax: +91-542-2368390
Email Id:abhay_s@rediffmail.com,singhak@bhu.ac.in

 
 
Academic Qualifications:
 
S. No.DegreeInstitutionYear
1.B.Sc.Banaras Hindu University 1987
2.M.Sc.Banaras Hindu University 1989
3.Ph. D.Banaras Hindu University 1993
 
Professional Employments:

S. No.Name of the Post Name of the DepartmentName of the Inst./UnivDuration
7.ProfessorDepartment of PhysicsBanaras Hindu University2011-Present
6. Associate ProfessorDepartment of PhysicsBanaras Hindu University2008-2011
5.ReaderDepartment of PhysicsBanaras Hindu University2005-2008
4. Senior LecturerDepartment of PhysicsV.K.S. University, Ara2000-2005
3.LecturerDepartment of Physics V.K.S. University, Ara1996-2000
2.LecturerDepartment of PhysicsPriyadarshani College of Engineering1994-1995
1.Research Associate (CSIR)Department of PhysicsBanaras Hindu University (India)1993-1994
Brief writeup on area of specialization/awards/achievements:
 

Recent studies of lightning and thunderstorm activity relate global electric circuit and weather/climate. These all are controlled by the short and long term variations in the solar environment, commonly known as space-weather events. We are mainly working on the study of the processes occurring in the lower atmosphere, ionosphere and magnetosphere of the Earth on the following problems:

  • Space Weather Studies of Upper Atmosphere.
  • Study of Ionospheric Irregularities using VHF & GPS scintillations.
  • GPS based Total Electron Content (TEC) & Water Vapor content measurements and their variability.
  • Study of VLF Whistler-Mode waves and their generation and propagation mechanisms.
  • Electrodynamics of the Atmosphere-Ionosphere-Magnetosphere.
  • Seismo-electromagnetics to study Earthquake Precursors.
  • Atmospheric studies involving aerosols, dust storms, winter fog, and their radiative and climate effects mainly in Indo-Gangetic basin.
Lab facilities available: An "Atmospheric Research Laboratory" equipped with the following instruments:
  • Two High Volume air Samplers for PM10 and PM2.5 particles.
  • NET Radiometer.
  • Solar telescope along with CCD Camera & Spectrometer
  • Aerosol Spectrometer, GRIMM, Germany.
  • A pair of MICROTOPS-II Sunphotometer & Ozonometer, Solar Light, USA.
  • VHF receiver of fixed frequency 250 MHz and Yagi Antenna.
  • VLF receiver from Stanford University USA and Loop Antenna.
  • Two GPS receivers and Antenna.
  • L-Band receiver and Dish Antenna.
  • Automatic Weather Station from ISRO, Bangalore.
  • BL LIDAR & MWR funded by ISRO Bangalore.
Awards:
  • Life Member, Indian Physics Association (LM-12777).
  • Life Member, Indian Meteorological Society, New Delhi (LM-1722).
  • Life Member, Indian Aerosol Science & Technology Association (IASTA), BARC, Bombay (F-12433).
  • Reviewer of Journals: JASTP, IJRSP, EMP, JASR, JASS, ESI, IJP, ESR, SRE, JESS
  • BOYSCAST Fellow.
  • Life Member of Plasma Science Society of India, Ahmedabad.
  • Fellow, The Society of Earth Scientists, Earth Science India, Lucknow.
  • Member of Editorial Boards of IIST Journal of Applied Physics, New Delhi.
 
Current Research Projects:
 

S. No.Name of the Project DurationSource of FundingAmount of Funding (Rs)
1. Physical and Chemical Properties of Atmospheric Aerosols in Indo-Gangetic Basin 2016- 2019UGC, New DelhiRs.13.98 lacs
2."Space Science Activities at Indian Universities (BHU, Varanasi)" under ISRO-SSPS Program2009-2019ISRO, Bangalore 233 lacs
3. "Long-Term Analysis of Aerosols and Related Aerosol Radiative Forcing in Ganga Basin at B.H.U. Campus, Varanasi" under ISRO-ARFI program. 2009- 2019ISRO, Bangalore35.0 lacs
 
Any additional information:
 
  • PH. D. THESIS SUPERVISED: 15 (Ph.D. Awarded: 11, Currently Supervising: 5
  • Set up a new M.Sc. Space Physics Laboratory
  • Designed and started two New Ph.D. based course work papers.
  • Incharge, Space Physics Section, Physics Department, BHU.
  • Member, Training & Placement Cell, Science Faculty, BHU
  • Member, Anti-Ragging Committee, Science Faculty, BHU
  • Conferences/Seminars/Workshops Attended : More than 75
  • Supervised Dissertation at Master�s Level : More than 40
  • Organized Conferences/Sessions/Workshops : 10
  • Coordinator, ISRO-SSPS Program to BHU
  • Started a new course in M.Sc. Physics with specialization in Space Physics.
  • Started two new Elective papers of Remote Sensing and Space Plasma Physics.

List of 10 major Publications:

  1. Thunderstorms, lightning, sprites and magnetospheric whistler-mode radio waves, D. Siingh, A. K. Singh, R.P. Patel, R. Singh, R.P. Singh, B. Veenadhari and M. Mukherjee, Surveys in Geophysics, 29, 499-551, 2008. (IF: 4.413).
  2. Discharges in the stratosphere and mesosphere, D. Siingh, R. P. Singh, Ashok, K. Singh, S. Kumar, M N Kulkarni and A. K. Singh, Space Science Review, 167, 73- 121, doi:10.1007/s11214-012-9906-0, 2012 (IF: 7.497).
  3. Effects of crop residue burning on aerosol properties, plume characteristics and long-range transport over northern India, D. G. Kaskaoutis, S. Kumar, D. Sharma, Ramesh Singh, S Kharol, M. Sharma, A. K. Singh, S. Singh, A. Singh, and D. Singh, J. Geophysical Research: Atmos., 119, 2014, DOI: 10.1002/2013JD021357 (Impact Factor: 3.44).
  4. Whistlers Detected and Analyzed by Automatic Whistler Detector (AWD) at Low Latitude Indian Stations, A. K. Singh, S. B. Singh, Rajesh Singh, Sneha A. Gokani, Ashok K. Singh, Devendraa Siingh and J�nos Lichtenberger, J. Atmospheric-Solar & Terrestrial Physics, 121, 221-228, 2014, http://dx.doi.org/10.1016/j.jastp.2014.03.001 (IF: 1.751).
  5. Role of Solar and Magnetic Activity on VHF Scintillation near the Equatorial Anomaly Crest, R.P. Singh, R.P. Patel and A. K. Singh; Annales Geophysicae, 22, 2849-2860, 2004 (IF: 1.842).
  6. GPS-TEC variations during low solar activity period (2007�2009) at Indian low latitude stations, Sanjay Kumar, S. Priyadarshi, S. Gopi Krishna, A. K. Singh, Astrophys Space Sci, 339, 165�178, 2012 (IF: 2.263).
  7. Variability of Aerosol Parameters Derived from Ground and Satellite Measurements over Varanasi Located in Indo-Gangetic Basin, S. Tiwari and A. K. Singh, Aerosols and Air Quality Research, 13, 627-638, 2013. (IF: 2.664)
  8. Heterogeneity in pre-monsoon aerosol characteristics over the Indo-Gangetic Basin, S. Tiwari, A. K. Srivastava and A. K. Singh, Atmospheric Environment, 77, 738-747, 2013 http://dx.doi.org/10.1016/j.atmosenv.2013.05.035 (IF: 3.281).
  9. Meteorological, atmospheric and climatic perturbations during major dust storms over Indo-Gangetic basin, Sarvan Kumar, Sanjay Kumar, D. G. Kaskaoutis, R. P. Singh, R. K. Singh, A. K. Mishra, M. K. Srivastava, A. K. Singh, Aeolian Research, 17, 15-31, 2015 doi:10.1016/j.aeolia. 2015.01.006 (IF: 2.298).
  10. Morphological features of tweeks and nighttime D region ionosphere at tweek reflection height from the observations in the low-latitude Indian sector, A. K. Maurya, R. Singh, B. Veenadhari, S. Kumar, M. B. Cohen, R. Selvakumaran, P. Pant, A. K. Singh, D. Siingh & U. S. Inan, J. Geophysical Research, 117, doi:10.1029/2011JA016976, 2012. (IF: 3.44).
Full List of Publications:
A. Reviews:


    1. Lightning Discharges, Cosmic Rays and Climate, S. Kumar, D. Siingh, R. P. Singh, A. K. Singh, A.K. Kamra, Surveys in Geophysics, 2018, https://doi.org/10.1007/s10712-018-9469-z (IF: 3.761).

    2. Lightning and middle atmospheric discharges in the atmosphere, D. Siingh, R. P. Singh, S. Kumar, T. Dharmaraj, A. K. Singh, Ashok K. Singh, M. N. Patil, S. Singh, J. Atmospheric-Solar & Terrestrial Physics, 134, 78-101, 2015 (IF: 1.751).

    3. Discharges in the stratosphere and mesosphere, D. Siingh, R. P. Singh, Ashok, K. Singh, S. Kumar, M N Kulkarni and A. K. Singh, Space Science Review, 167, 73- 121, doi:10.1007/s11214-012-9906-0, 2012 (IF: 7.497)

    4. Solar Activity, Lightning and Climate, D. Siingh, R.P. Singh, Ashok. K. Singh, A. K. Singh, Surveys in Geophysics, 32, 659�703, 2011 (IF: 3.761).

    5. Thunderstorms/Lightning Generated Sprite and Associated Phenomena, D. Siingh, S. Kumar and A. K. Singh, Earth Science India, 3 (II), 124-145, April, 2010. (Indexed)

    6. Thunderstorms, lightning, sprites and magnetospheric whistler-mode radio waves, D. Siingh, A. K. Singh, R.P. Patel, R. Singh, R.P. Singh, B. Veenadhari and M. Mukherjee, Surveys in Geophysics, 29, 499-551, 2008. (IF: 4.413).

    7. Lighting/Optical Discharges and Climate: A Brief Review, D. Siingh, S. Kumar, Upal Saha, A. K. Singh, R.P. Singh and Ashok K. Singh, Earth Science India, 10 (I), 13-62, Jan., 2017 .
B. Original Research Article:
    194. Aerosol columnar characteristics and their heterogeneous nature over Varanasi, in the central Ganges valley, Shani Tiwari, D. Kaskaoutis, V. K. Soni, S. D. Attri, A. K. Singh, Envir. Sci. & Poll. Res. 25, 24726�24745, 2018 DOI : 10.1007/s11356-018-2502-4 (IF: 2.800).

    193. GPS measurement of land subsidence in Gandhinagar, Gujarat (Western India), due to groundwater depletion, P. Choudhury, K. Gahalaut, R. Dumka, V. K. Gahalaut, A. K. Singh, S. Kumar, Environmental Earth Sciences, 77, 770, 2018 (IF: 1.435).

    192. Causes Responsible for the Intense (Dst = -100nT to -200nT) and Severe Storms (Dst < -200nT) during the Declining Phase of the Solar Cycle 24, K. Patel, A. Singh, S. B. Singh and A. K. Singh, J. of Astrophysics and Astronomy, 40:4, 2019. (IF: 0.849).

    191. Elevated Black Carbon Concentrations and Atmospheric Pollution around Singrauli Coal-Fired Thermal Power Plants (India) Using Ground and Satellite Data, Ramesh P. Singh, S. Kumar, A. K. Singh, Int. J. Environ. Res. Public Health, Nov. 2018 (IF: 2.145).

    190. Effects of St. Patrick�s Day geomagnetic storm of March 2015 and of June 2015 on low-equatorial D region ionosphere. Maurya, A. K., Venkatesham, K., Kumar, S., Singh, R., Tiwari, P., & Singh, A. K. (2018). Journal of Geophysical Research: Space Physics, 123. https://doi.org/10.1029/2018JA025536 (IF: 3.38).

    189. Occurrence characteristics of ionospheric irregularities over Indian low-latitude region Varanasi during ascending phase of solar cycle 24, V.S. Rathore, S. Kumar, A. K. Singh, Annales of Geophysics, 61,1, PA113, 2018; doi: 10.4401/ag-7464 (IF: 1.205).

    188. BATAL: The Balloon measurement campaigns of the Asian Tropopause Aerosol Layer, December 2017, J.-P. Vernier, T.D. Fairlie, �., A. K. Singh, N. Rastogi, �.. J.B. Renard, Bulletin of the American Meteorological Society, 955-973, May-2018, DOI: 10.1175/BAMS-D-17-0014.1 (IF: 7.804).

    187. Ionospheric response to an intense solar flare in equatorial and low latitude region, V S Rathore, S Kumar, A K Singh and A K Singh, Ind. J. Physics, 92 (10), 1213-1222, 2018, https://doi.org/10.1007/s12648-018-1224-2 (IF: 0.967)

    186. Effect of Geomagnetic Storms on VHF Scintillations observed at Low Latitude, S. B. Singh, Kalpana Patel and A. K. Singh, Journal of Astrophysics and Astronomy, 39, 36, 2018. (IF: 0.849).

    185. Comprehensive evaluation of soil moisture retrieval models under different crop cover types using C-band synthetic aperture radar data, P. Kumar, R. Prasad, A. Choudhary, D. K. Gupta, V. N. Mishra, A. K. Vishwakarma, A. K. Singh & P. K. Srivastava, Geocarto International, 2018, DOI: 10.1080/10106049.2018.1464601 (IF: 1.646).

    184. Seismogenic ionospheric anomalies associated with the strong Indonesian earthquake occurred on 11 April 2012 (M= 8.5), U. Pandey, A.K. Singh, S. Kumar, A.K. Singh, Advances in Space Research, 61, 1244-1253, 2018. (IF: 1.759).

    183. Identification of Aerosol Sources and Its Characterization at Varanasi: An Air Mass Based Study. S. Tiwari, R.K. Singh, A.K. Srivastava, V.K. Soni, Suresh Tiwari, R.S. Singh, M.K. Srivastava and A.K. Singh, Inter. J. of Earth & Atmospheric Sciences, 5 (1), 19-35, 2018.

    182. Association of atmospheric pollution and instability indices: A detailed investigation over an Indian urban metropolis, R. Chakraborty, Upal Saha, A. K. Singh, A. Maitra, Atmospheric Research, 196, 83-96, 2017 doi: 10.1016/j.atmosres.2017.04.033. (IF: 3.817).

    181. Retrieval of Aerosol Optical Depth Over Land at 0.490 ?m from Oceansat-2 data, A. K. Mishra, T. Banerjee, A. K. Singh, Journal of the Indian Society of Remote Sensing, 2018, https://doi.org/10.1007/s12524-017-0715-5 (IF: 0.78)

    180. Spatio-temporal variability of lightning and convective activity over South/South-East Asia with an emphasis during El Ni�o and La Ni�a, Upal Saha,, Devendraa Siingh, S.K. Midya, R.P. Singh, A.K. Singh, S. Kumara, Atmospheric Research, 197, 150-166, 2017 (IF: 3.817).

    179. Ionospheric Precursors observed in TEC due to Earthquake of Tamenglong on 03 January 2016, S. Kumar and A. K. Singh, Current Science, 113 (4), 795-801, 2017 (IF: 0.98).

    178. East-west coastal asymmetry in the summertime near surface wind speed and its projected change in future climate over the Indian region, Upal Saha, R. Chakraborty, A. Maitra, A. K. Singh, Global and Planetary Change, 152, 76-77, 2017 doi:10.1016/j.gloplacha.2017.03.001 (IF: 3.982).

    177.Short term air quality degradation by Firecrackers used during Diwali festival in Varanasi, India, Vineet Pratap, Akhilesh Kumar and A. K. Singh, Int. J. of Innovative Res. in Sci. Eng. & Tech., 6 (9), 18158-18165, 2017.

    176.Wintertime characteristics of aerosols over middle Indo-Gangetic Plain: Vertical profile, transport and radiative forcing, M. Kumar, M. P. Raju, R. K. Singh, A. K. Singh, R. S. Singh, T. Banerjee, Atmospheric Research, 183, 268-282, 2017 (IF: 3.817).

    175. On the association of lightning activity and projected change in climate over the Indian sub-continent, Upal Saha, Devendraa Siingh, A. K Kamra, E. Galanaki, Animesh Maitra, R. P Singh, A. K. Singh, S. Chakraborty, Rajesh Singh, Atmospheric Research, 183, 173-190, 2017 (IF: 3.817).

    174. Source Identification of moderate (-100 nT < Dst < -50 nT) and intense geomagnetic storms (Dst <-100nT) during ascending Phase of Solar Cycle 24, Abha Singh, V. S. Rathore, R. P. Singh and A. K. Singh, Advances in Space Research, 59, 1209-1222, 2017 http://dx.doi.org/10.1016/ j.asr.2016.12.006 (IF: 1.529).

    173. Fireworks Induced Particle Pollution: A Spatio-temporal Analysis, M. Kumar, R. K. Singh, V. Murari, A. K. Singh , R S Singh, T. Banerjee, Atmospheric Research, 180, 78�91, 2016 (Impact Factor: 2.844) .

    172. Temporal and spatial deviation in F2-peak parameters derived from FORMOSAT-3/COSMIC, S. Kumar, R. P. Singh, Eng Leong Tan, A. K. Singh, R. N. Ghodpage and D. Siingh, Space Weather, 2016 (Impact Factor: 2.149) .

    171. Aerosol climatology over the Bay of Bengal and Arabian Sea inferred from Space-borne Radiometers and Lidar Observations, S. Tiwari, A. K. Mishra and A. K. Singh, Aerosols and Air Quality Research, 2016. (Impact Factor: 2.664) .

    170. Ionospheric Irregularities at Low Latitude Using VHF Scintillations during Extreme Low Solar Activity Period (2008-2010), S. B. Singh, V. S. Rathore, Ashutosh K. Singh and A. K. Singh, Acta Geodaetica et Geophysica, 2016 (Impact factor: 0.543) .

    169. A Study on Precursors Leading to Geomagnetic Storms Using Artificial Neural Network, Gaurav Kumar, A. K. Singh, J. Earth System Sciences, DOI 10.1007/s12040-016-0702-1, 2016 (Impact factor: 1.046) .

    168. Variability in optical properties of atmospheric aerosols and their frequency distribution over a mega city �New Delhi", India, S. Tiwari, Suresh Tiwari, P. K. Hopke, S. D. Attri, V. K. Soni, A. K. Singh, Envir. Sci. & Poll. Res. 2016 DOI: 10.1007/s11356-016-6060-3 (Impact Factor: 2.828) .

    167. Characterization and radiative impact of dust aerosols over northwestern part of India: a case study during a severe dust storm, A.P. Singh, S. Tiwari, D. Sharma, S. Tiwari, A. K. Srivastava, N.Rastogi, A.K. Singh, Meteorology & Atmos. Phys, 2016, DOI 10.1007/s00703-016-0445-1 (Impact factor: 1.049) .

    166. Influence of meteorological parameters and atmospheric pollutants on lightning, rain and normalized difference vegetation index in the Indo-Gangetic Plane, S. Kumar, D. Siingh, R. P. Singh, A. K. Singh, International J. Remote Sensing, 37 (1), 53-77, 2016. DOI:1080/01431161.2015. 11176802015 (Impact Factor: 1.652) .

    165. Modeling Jupiter�s Synchrotron Emission from Relativistic Electron Trapped in Jovian Magnetosphere, Shubha Singh, A. K. Singh and R.P. Singh, Hydrol Current Res., 7, 218. doi:10.4172/2157-7587.1000218.

    164.A Study of Physics of Indian Drum Tabla, Anamika Kumari and A. K. Singh, Nava Gavesana, 6, 9-14, 2015.

    163.Impact of �Holi� festival on Aerosol optical properties in Indo-Gangetic Plain, S. Kumar, .A. Singh and A. K. Singh, Int. J. Adv. Earth Sciences, 4 (1), 19-28, 2015.

    162. Seasonal inhomogeneity of soot particle over central Indo-Gangetic Plains, India: Influence of meteorology. B. P. Singh, S. Tiwari, P. K. Hopke, R. S. Singh, D. S. Bisht, A. K. Srivastava, R. K. Singh, U.C. Dumka, A. K. Singh, B.N. Rai , M. K. Srivastava, J. Meteor. Res., 29(6), 935-949, 2015, doi: 10.1007/s13351-015-5041-7 (Impact Factor: 1.116) .

    161. Intra-urban variability of particulate matter (PM2.5 and PM10) and its relationship with optical properties of aerosols over Delhi, India, S. Tiwari, P. K. Hopke, A. S. Pipal, A. K. Srivastava, D.S. Bisht, S. Tiwari, A. K. Singh, V. K. Soni, S.D. Attri, Atmospheric Research, doi:10.1016/j.atmosres.2015.07.007, 2015 (Impact Factor: 2.844) .

    160. A Study of Outdoor and Indoor Exposure to Particulate Matters on Students of Banaras Hindu University and city side over Varanasi India, Shani Tiwari, S. Tiwari and A. K. Singh, Earth Science India, 8, 79-99, 2015.

    159. TEC variation over an Equatorial and Anomaly Crest region in India during 2012 and 2013, S. Kumar, Kalpana Patel and A. K. Singh, GPS Solution, DOI: 10.1007/s10291-015-0470-4 2015 (Impact Factor: 2.902) .

    158. Identification of aerosol types over Indo-Gangetic Basin: Implications to optical properties and associated radiative forcing, S. Tiwari, A. K. Srivastava, A. K. Singh and S. Singh, Envir. Sci. & Poll. Res., 22, 12246-12260, DOI: 10.1007/s11356-015-4495-6, 2015 (Impact Factor: 2.828).

    157. Meteorological, atmospheric and climatic perturbations during major dust storms over Indo-Gangetic basin, Sarvan Kumar, Sanjay Kumar, D. G. Kaskaoutis, R. P. Singh, R. K. Singh, A. K. Mishra, M. K. Srivastava, A. K. Singh, Aeolian Research, 17, 15-31, 2015 doi:10.1016/j.aeolia. 2015.01.006 (Impact Factor: 2.309) .

    156. Climate, topographical and meteorological investigation of the 16�17 June 2013 Kedarnath (India) disaster causes, R. Singh, D. Siingh, S. A. Gokani, P. S. Buchunde, R. P. Singh, and A. K. Singh, Nat. Hazards Earth Syst. Sci. Discuss., 3, 941�953, 2015, doi:10.5194/nhessd-3-941-2015 (Impact Factor: 1.826) .

    155. Observation of discrete VLF emissions at Indian low latitude ground station Srinagar (Geomag. Lat. 24� 10� N; L = 1.28), S. B. Singh, M. U. D. Rather, P. A. Ganai and A. K. Singh, Ind. J. Physics, DOI: 10.1007/s12648-015-0680-1, 2015 (Impact Factor: 1.785) .

    154. Solar flares induced D-region ionospheric and geomagnetic perturbations, R. Selvakumaran, A. K. Maurya, S. A. Gokani, B. Veenadhari, S. Kumar, K. Venkatesham, D.V. Phanikumar, A. K. Singh, D. Siingh, R. Singh, J. Atmospheric-Solar & Terrestrial Physics http://dx.doi.org/10.1016/j.jastp.2014.12.009, 2015 (Impact Factor: 1.751) .

    153. Wintertime Characteristics of Aerosols at middle Indo-Gangetic Plain: Impacts of Regional Meteorology and Long Range Transport, M. Kumar, S. Tiwari, V. Murari, A. K. Singh and T. Banerjee, Atmospheric Environment, 104, 162-175, 2015, DOI: 10.1016/j.atmosenv. 2015.01.014 (Impact Factor: 3.281). .

    152. A statistical comparison of IRI TEC prediction with GPS TEC measurement over Varanasi, India, V. S. Rathore, S. Kumar and A. K. Singh, J. Atmospheric-Solar & Terrestrial Physics,2015 DOI:10.1016/j.jastp.2015.01.006. (Impact Factor: 1.751) .

    151. Low-mid latitude D-region ionospheric perturbations associated with 22 July 2009 Total Solar Eclipse: Wave-like signatures inferred from VLF observations, A.K. Maurya, D.V. Phani Kumar, R. Singh, S. Kumar, B. Veenadhari, Y. S. Kwak, A. Kumar, A. K. Singh and K.N. Kumar, J. Geophysical Research: Space Sci., 2014, doi:10.1002/2013JA0195 (Impact Factor: 3.44) .

    150. Subionospheric VLF perturbations observed at a low latitude station Varanasi (L = 1.07), Ashutosh K. Singh, A. K. Singh, R. Singh, R. P. Singh, K. Adams and R. L. Dowden, Adv. Space Res., 55, 576-585, 2015, DOI: 10.1016/j.asr.2014.10.032 (Impact Factor: 1.358) .

    149. Effects of crop residue burning on aerosol properties, plume characteristics and long-range transport over northern India, D. G. Kaskaoutis, S. Kumar, D. Sharma, Ramesh Singh, S Kharol, M. Sharma, A. K. Singh, S. Singh, A. Singh, and D. Singh, J. Geophysical Research: Atmos., 119, 2014, DOI: 10.1002/2013JD021357 (Impact Factor: 3.44) .

    148. Whistlers Detected and Analyzed by Automatic Whistler Detector (AWD) at Low Latitude Indian Stations, A. K. Singh, S. B. Singh, Rajesh Singh, Sneha A. Gokani, Ashok K. Singh, Devendraa Siingh and J�nos Lichtenberger, J. Atmospheric-Solar & Terrestrial Physics, 121, 221-228, 2014, http://dx.doi.org/10.1016/j.jastp.2014.03.001 (Impact Factor: 1.751) .

    147. Equatorial Ionospheric Anomaly (EIA) and comparison with IRI model during descending phase of solar activity (2005�2009), S. Kumar, A. K. Singh, Jiyun Lee, Adv. Space Res., 53, 724-733, 2014, http://dx.doi.org/10.1016/j.asr.2013.12.019 (Impact Factor: 1.358) .

    146. Characterisation of Atmospheric Aerosol by SEM-EDX and Ion-Chromatography Techniques for Eastern Indo-Gangetic Plain Location, Varanasi, India, A.K. Singh, M. K. Srivastava, Meenakshi Singh, A. Srivastava, Sarvan Kumar, Shani Tiwari, B. P. Singh, D. S. Bisht, and Suresh Tiwari, Int. J. Adv. Earth Sciences, 3 (2), 41-51, 2014 (Indexed) .

    145. Solar flare induced D-region ionospheric perturbations evaluated from VLF measurements, Ashutosh K. Singh, A.K. Singh, R. Singh, R.P. Singh, Astrophysics Space Science, 350, 1-9, 2014, DOI 10.1007/s10509-013-1699-4 (Impact Factor: 2.263) .

    144. Radiative Impact of Fireworks at a Tropical Indian Location: A Case Study, B. P. Singh, A. K. Srivastava, S. Tiwari, S. Singh, R. K. Singh, D. S. Bisht, D. M. Lal, A. K. Singh, R. K. Mall, and M. K. Srivastava, Advances in Meteorology, 197072, 2014, http://dx.doi.org/10.1155/2014/197072 (Impact Factor: 1.4) .

    143. Heterogeneity in pre-monsoon aerosol characteristics over the Indo-Gangetic Basin, S. Tiwari, A. K. Srivastava and A. K. Singh, Atmospheric Environment, 77, 738-747, 2013 http://dx.doi.org/10.1016/j.atmosenv.2013.05.035 (Impact Factor: 3.281) .

    142. Ionospheric Response to Total Solar Eclipse of 22 July 2009 at different Indian Regions, Sanjay Kumar, A. K. Singh and R. P. Singh, Annales Geophysicae, 31, 1549�1558, 2013, doi:10.5194/angeo-31-1-2013. (Impact Factor: 1.842) .

    141. One-to-one Relationship between low latitude Whistlers and conjugate source Lightning discharges and their Propagation Characteristics, P. R. Srivastavaa, S. A. Gokani, A. K. Maurya, R. Singh, S. Kumar, B. Veenadhari, R. Selvakumaran, A. K. Singh, J. Lichtenberger, Adv. Space Res., 52, 1966-1973, 2013, http://dx.doi.org/10.1016/ j.asr.2013.08.018 (Impact Factor: 1.409) .

    140. Variability of Aerosol Parameters Derived from Ground and Satellite Measurements over Varanasi Located in Indo-Gangetic Basin, S. Tiwari and A. K. Singh, Aerosols and Air Quality Research, 13, 627-638, 2013. (Impact Factor: 2.664) .

    139. Sub-ionospheric VLF perturbations associated with the 12 May 2008 M7.9 Wenchuan earthquake, A. K. Maurya, R. Singh, B. Veenadhari, S. Kumar, M. B. Cohen, R. Selvakumaran, A. K. Singh, Natural Hazards Earth System Sciences, 13, 2331�2336, 2013 (Impact Factor: 1.98) .

    138. Variability of GPS derived water vapor and comparison with MODIS data over the Indo-Gangetic plains, S. Kumar, A. K. Singh, A.K. Prasad, R.P. Singh, Physics & Chemistry of the Earth, 55-57, 11-18, 2013. (Impact Factor: 1.110) .

    137. Observations of Rising Tone Chorus Emissions at Indian Low Latitude Ground Station and their Generation Mechanism, S. B. Singh, K. K. Singh and A. K. Singh, J. Atmospheric Electricity, 33, 9-20, 2013. (Indexed) .

    136. A statistical study of daytime pulsing hiss emission at low latitude, S. A. Sheikh, K. K. Singh, A. K. Singh, F. Ahmad and Lalmani, Ind. J. Physics, 87(7), 615-621, 2013 (Impact Factor: 1.785) .

    135. On the observations of unique low latitude whistler-triggered VLF/ELF emissions, M. Altaf, K.K. Singh, A. K. Singh, and Lalmani, Physics & Chemistry of the Earth, 55-57, 19-26, 2013. (Impact Factor: 1.110) .

    134. Estimation of duct-lifetimes for storm-time low latitude whistlers observed at Srinagar, India, K. K. Singh, S. A. Sheikh, A. K. Singh, F. Ahmad and Lalmani, Ind. J. Physics, 87(6), 499�505, 2013 (Impact Factor: 1.785) .

    133. Study of Reflection Spectra of One Dimensional Plasma Photonic Crystals Having Exponentially Graded Materials, S. Prasad, Vivek Singh and A. K. Singh, Plasma Science and Technology, 15, 443-447, 2013. (Impact Factor: 0.596) .

    132. Reflectivity of binary and ternary one dimensional plasma photonic crystals for obliquely incident electromagnetic wave: a comparative study, S. Prasad, V. Singh, and A. K. Singh, Optics and Spectroscopy, 114, 639-647, 2013. (Impact Factor: 0.673)

    131. GPS-TEC variations during low solar activity period (2007�2009) at Indian low latitude stations, Sanjay Kumar, S. Priyadarshi, S. Gopi Krishna, A. K. Singh, Astrophys Space Sci, 339, 165�178, 2012 (Impact Factor: 2.263) .

    130. Response of low latitude D-region ionosphere to the Total Solar Eclipse of 22 July 2009 deduced from ELF/VLF analysis, A. K. Singh, R. Singh, B. Veenadhari, A. K. Singh, Advances in Space Research, 50, 1352-1361, 2012. (Impact Factor: 1.358) .

    129. Morphological features of tweeks and nighttime D region ionosphere at tweek reflection height from the observations in the low-latitude Indian sector, A. K. Maurya, R. Singh, B. Veenadhari, S. Kumar, M. B. Cohen, R. Selvakumaran, P. Pant, A. K. Singh, D. Siingh & U. S. Inan, J. Geophysical Research, 117, doi:10.1029/2011JA016976, 2012. (Impact Factor: 3.44) .

    128. The phenomena of negative refraction: a discussion, S. Prasad, V. Singh & A. K. Singh, ISST J. Applied Phys., 3 (2), 29-32, 2012 (Indexed) .

    127. Changes in total electron content (TEC) during the annular solar eclipse of 15 January 2010, Sanjay Kumar & A. K. Singh, Adv. Space. Res, 49, 75-82, 2012 (Impact Factor: 1.358) .

    126. Nighttime D region electron density measurements from ELF/VLF tweek radio atmospherics recorded at low latitudes, A. K. Maurya, B. Veenadhari, Rajesh Singh, Sushil Kumar, M. B. Cohen, R. Selvakumaran, S. Gokani, P. Pant, A. K. Singh, and U. S. Inan, J. Geophys. Res., 117, A11308, doi:10.1029/2012JA017876, 2012. (Impact Factor: 3.44) .

    125. Effect of Solar Flares on Ionospheric TEC at Varanasi, near EIA crest during solar minimum period, Sanjay Kumar and A. K. Singh, Indian J. Radio Space Phys., 41, 141-147, 2012. (Impact Factor: 0.25) .

    124. Dispersion characteristics and optimization of reflectivity of binary one dimensional plasma photonic crystal having linearly graded material, S. Prasad, Vivek Singh and A. K. Singh, Progress in Electromagnetics Research M, 22, 149-162, 2012. (Impact Factor: 5.298) .

    123. To control the propagation characteristic of one-dimensional plasma photonic crystal using exponentially graded dielectric material,� S. Prasad, Vivek Singh and A. K. Singh, Progress in Electromagnetics Research M, 22, 123-136, 2012. (Impact Factor: 5.298) .

    122. Property of ternary one dimensional plasma photonic crystals for obliquely incident electromagnetic wave considering the effect of collisions in plasma layers, S. Prasad, Vivek Singh and A. K. Singh, Plasma Science and Technology, 14, 1084-1090, 2012 (Impact Factor: 0.596) .

    121. Pre-earthquake Ionospheric Anomalies Observed using Ground based Multi-Instruments, A. K. Singh, S. Kumar, R. Singh & A. K. Singh, Int. J. Adv. Earth Sci. 1(1), 13-19, 2012. (Indexed) .

    120. Seasonal Variability of Atmospheric Aerosol over the North Indian Region during 2005-2009, Sarvan Kumar, Sanjay Kumar, A. K. Singh and R. P. Singh, Advances in Space Research, 50, 1220-1230, 2012. (Impact Factor: 1.409) .

    119. The dispersion characteristics of a one dimensional plasma photonic crystal having inhomogeneous plasma density profiles, S. Prasad, V. Singh, and A. K. Singh, Optics and Photonics Journal, 2, (23), 222-229, 2012 (Impact Factor: 0.12) .

    118. Modeling of electric field distribution of plasma photonic crystals having inhomogeneity in the materials, S. Prasad, V. Singh, and A. K. Singh, Journal of Russian Laser Research, 33, 509-516, 2012 (Impact Factor: 0.746) .

    117. Simultaneous observation of whistlers and emissions during a geomagnetically quiet period at low latitude, Ashutosh K. Singh, K.K. Singh, A. K. Singh, Lalmani, Astrophys Space Sci., 331, 459-468, 2011. (Impact Factor: 2.263) .

    116. GPS derived ionospheric TEC response to geomagnetic storm on 24 August 2005 at Indian low latitude stations. S. Kumar and A. K. Singh, Adv. Space. Res, 47, 710-717, 2011. (Impact Factor: 1.358) .

    115. Storm time response of GPS-derived Total Electron Content (TEC) during low solar active period at Indian low latitude station Varanasi. S. Kumar and A. K. Singh, Astrophys Space Sci., 331, 447, 2011. (Impact Factor: 2.263) .

    114. Multiflash whistlers in ELF-band observed at low latitude, Ashutosh K. Singh, K. K. Singh, S. B. Singh, A. K. Singh, and Lalmani, Annales Geophysicae, 29, 91-96, 2011. (Impact Factor: 1.842) .

    113. Ionospheric perturbations in Total Electron Content (TEC) Associated with some Major Earthquakes, S. Priyadarshi, S. Kumar and A. K. Singh. J. Geomantic Natural Hazards and Risk, 1-17, DOI: 10.1080/19475705.2011.563390, 2011. (Impact Factor: 0.98) .

    112. Modeling of ionospheric scintillation at low-latitude, K. Patel, Ashutosh K. Singh, P. Subrahmanyam, A.K. Singh, Adv. Space Res., 47, 515-524, 2011. (Impact Factor: 1.358) .

    111. Probing of Magnetospheric Parameters by Whistlers Analysis at Varanasi, S. B. Singh, Usha Kumari, K. M. Singh, and A. K. Singh, Earth Science India, 4(IV), 201 � 211, 2011. (Indexed) .

    110. D-region ionosphere response to the total solar eclipse of 22 July 2009 deduced from ELF/VLF tweek observations in the Indian sector, R. Singh, B. Veenadhari, A.K. Maurya, M.B. Cohen, S. Kumar, R. Selvakumaran, P. Pant, A. K. Singh, & U. S. Inan, J. Geophysical Research, 116, A10301, doi:10.1029/2011JA016641, 2011. (Impact Factor: 3.44) .

    109. Ionospheric perturbations associated with two recent major earthquakes (M >5.0), S Priyadarshi, S Kumar & A. K. Singh, Physica Scripta, 84 045901, 2011. (Impact Factor: 1.032) .

    108. Enhancement of phase matching ability in one-dimensional photonic crystal through plasma materials, S. Prasad, Vivek Singh and A.K. Singh, J. Electromagnetic Analysis & Applications (JEMAA) 3, 255-260, 2011. (Impact Factor: 1.15) .

    107. A Comparative study of dispersion relation of EM Waves in Ternary one-dimensional plasma photonic crystals having two different structures, S. Prasad, V. Singh and A.K. Singh Optik, 122, 1279�1283, doi:10.1016/j.ijleo.2010.08.015, 2011. (Impact Factor: 0.769) .

    106. Modeling of a filter from one-dimensional plasma photonic crystal having exponentially graded material in submillimeter range, S. Prasad, Vivek Singh and A.K. Singh, J. Optics Research, 12, issue-3-4, article 2, 2011. (Indexed) .

    105. Effect of inhomogeneous plasma density on the reflectivity in one dimensional plasma photonic crystal, S. Prasad, Vivek Singh and A.K. Singh, Progress in Electromagnetics Research M (PIERM), 21, 211-222, 2011. (Impact Factor: 5.298) .

    104. Characteristics of ELF/VLF drifting emissions observed at low latitude station Varanasi during geomagnetic substorms, S. Singh, A. K. Singh and R. P. Singh, J. Physics C.S., IOP Pub. 208, 012063, 2010. (Indexed) .

    103. Simultaneous observations of some unusual whistlers and VLF hiss emission at a low L-value (L = 1.17), K.K. Singh, J. Singh, M. Altaf, Ashutosh K. Singh, S. Kumar, A. K. Singh, Shyampati, Lalmani, Adv. Space Res., 45, 790�797, 2010. (Impact Factor: 1.358) .

    102. Modeling of VHF Scintillation Observed at Low Latitude, S. B. Singh, K. Patel, R. P. Patel, A. K. Singh and R. P. Singh, J. Physics C.S., IOP Pub. 208, 012065, 2010. (Indexed) .

    101. Application of lightning discharge generated radio atmospherics/tweeks in lower ionospheric plasma diagnostics, A. K. Maurya, R. Singh, B. Veenadhari, P. Pant and A. K. Singh, J. Physics C.S., IOP Pub. 208, 012061, 2010. (Indexed) .

    100. An explanation of the observation of whistler-mode chorus emissions at the Indian Antarctic station, Maitri (L = 4.5), A. K. Singh, S. B. Singh and R. P. Patel, Physica Scripta, 81, 035901, 2010. (Impact Factor: 1.296) .

    99. A generation mechanism of chorus emissions using BWO theory, Ashutosh K. Singh, R.P. Patel, R. Singh, K.K. Singh, and A. K. Singh, J. Physics C.S., IOP Pub. 208, 012067, 2010. (Indexed) .

    98. Initial results from AWESOME VLF receivers: set up in low latitude Indian regions under IHY2007/UNBSSI program, R. Singh, B. Veenadhari, M. B. Cohen, P. Pant, A. K. Singh, A. K. Maurya, P. Vohat and U. S. Inan, Current Science, 98 (3), 398-405, 2010. (Impact Factor: 0.897) .

    97. Observation and modeling of quasi-periodic scintillations observed at low latitude, Kalpana Patel, A. K. Singh and R P Singh, J. Physics C.S., IOP Pub. 208, 012064, 2010. (Indexed) .

    96. Characteristics of Modulating VLF Hiss Observed at Indian Antarctic Station, Maitri L = 4.5), A. K. Singh S.B. Singh, Shubha Singh, R.P. Patel and R.P. Singh, Current Science, 98( 9), 1217-1222, 2010. (Impact Factor: 0.897) .

    95. The effect of Geomagnetic storm on GPS derived total electron content (TEC) at Varanasi, India, S. Kumar, A. K. Singh, J. Physics C.S., IOP Pub. 208, 012062, 2010. (Indexed) .

    94. Simultaneous Observation of VLF and VHF Wave in the presence of Ionospheric Irregularities, R.P. Patel, K. Patel, A. K. Singh and R.P. Singh, J. Ind. Geophysical Union, 14, 2, 101-110, 2010. (Indexed) .

    93. Characteristic of plasma bubbles observed by DMSP in the topside ionosphere during the year 2005, K. Patel & A. K. Singh, J. Earth System Sciences, 119(2), 1-10, 2010. (Impact Factor: 1.040) .

    92. An explanation of the observation of whistler-mode chorus emissions at the Indian Antarctic station, Maitri (L = 4.5), A. K. Singh, S. B. Singh and R. P. Patel, Physica Scripta, 81, 035901, 2010. (Impact Factor: 1.296) .

    91. Drifting ELF/VLF Emissions Observed at Low Latitude Ground Station During Geomagnetic Storm, A. K. Singh, S. Singh, R. P. Singh, Earth Moon Planets, DOI 10.1007/s11038-010-9353-4, 106, 119�132, 2010. (Impact Factor: 0.830) .

    90. Simultaneous observations of some unusual whistlers and VLF hiss emission at a low L-value (L = 1.17), K.K. Singh, J. Singh, M. Altaf, Ashutosh K. Singh, S. Kumar, A. K. Singh, Shyampati, Lalmani, Adv. Space Res., 45, 790�797, 2010. (Impact Factor: 1.358) .

    89. Explanation of Observation of Multi-component ELF Whistlers at Low Latitude, S. B. Singh, Ashutosh K. Singh, K. K. Singh, A. K. Singh and Lalmani, Advances in Geosciences, 26, Solar & Terrestrial Science, 49-54, 2010. (Impact Factor: 0.886) .

    88. Nonlinear Generation Mechanism of VLF Chorus Emissions Observed at Antarctica during a Quiet Period, S. B. Singh and A. K. Singh, Advances in Geosciences, 26, Solar & Terrestrial Science, 13-21, 2010. (Impact Factor: 0.886) .

    87. Characteristics of nighttime VLF/ELF emissions with frequency drift and estimation of the large-scale electric field from the frequency drift observed at a low latitude Indian ground station, Jammu, M. Altaf, K. K. Singh, S. A. Sheikh, A. K. Singh, Lalmani, Ind. J. Physics, 84, 1481-1495, 2010. (Impact Factor: 1.785) .

    86. Modal propagation characteristics of EM waves in ternary one-dimensional plasma photonic crystals, S. Prasad, V. Singh, A.K. Singh, Optik, 121, 1520�1528, 2010. (Impact Factor: 0.769) .

    85. Characteristic of Tweeks observed at Varanasi, S. B. Singh, U. Kumari, K. M. Singh and A. K. Singh, Navgavesana, 1 (2), 7-15, 2010. (Indexed) .

    84. Trimpi Events and Other Amplitude Perturbations Observed at Varanasi using Softpal Receiver, Ashutosh K. Singh and A. K. Singh, Advances in Geosciences, 26, Solar & Terrestrial Science, 23-29, 2010. (Impact Factor: 0.886) .

    83. ELF/VLF studies of Mesosphere�the D region ionosphere and magnetosphere at low latitudes, R. Singh, B. Veenadhari, P. Pant, A. K. Singh, Asian J. of Physics, 19 (4), 329-348, 2010. (Indexed) .

    82. Variation of ionospheric total electron content in Indian low latitude region of the equatorial anomaly during May, 2007 � April, 2008, Sanjay Kumar and A. K. Singh, Adv. Space. Res., 43, 1555-1562, 2009 (Impact Factor: 1.409) .

    81. Hisslers observed during daytime in a low latitude ground station, K. K. Singh, R.P. Patel, B. Singh, M. Altaf, P.A. Ganai, A. K. Singh, R. P. Singh & Lalmani, Acta Geophysicae, doi:10.2478/s11600-008-0078-y, 57(2), 536-547, 2009. (Impact Factor: 0.910) .

    80. Characteristics of Quasi-Periodic Scintillations Observed at Low Latitude, Kalpana Patel, Ashutosh K. Singh, A. K. Singh and R. P. Singh, Radio Science, 44, RS6007, doi:10.1029/2008RS003975, 2009. (Impact Factor: 1.4) .

    79. Annual Variability of Water Vapor Estimated from GPS and MODIS data over the Indo-Gangetic Plains, Sanjay Kumar, A. K. Singh, Anup K. Prasad and R. P. Singh, J. Ind. Geophysical Union, 13, 17-23, 2009 (Indexed) .

    78. Characteristics of Discrete VLF Chorus Emissions observed at low latitude station Jammu and their propagation mechanism, A. K. Singh, R. P. Patel, Ashutosh K. Singh, R. Singh and K. K. Singh, Earth Planets Space, 61, 1179�1183, 2009 (Impact Factor: 2.921) .

    77. Quasi-periodic VLF emissions observed during daytime at a low latitude Indian ground station Jammu, K. K. Singh, J. Singh, R. P. Patel, A. K. Singh, R. P. Singh, R. Singh and P. A. Ganai, J. Earth System Sciences, 118(3), 209-216, 2009. (Impact Factor: 1.040) .

    76. Characteristics of low latitude ionospheric E-region irregularities linked with daytime VHF scintillations measured from Varanasi K. Patel, A. K. Singh, R. P. Patel and R. P. Singh, J. Earth System Sciences, 118(6), 721�732, 2009 (Impact Factor: 1.040) .

    75. Some unusual high dispersion whistler triplets recorded at a low L-value (L=1.17), K.K. Singh, J. Singh, M. Altaf, A. K. Singh, Shyampati, P.A. Ganai, and Lalmani, Ind. J. Phys., 83 (11), 1517-1523, 2009 (Impact Factor: 1.785) .

    74. Observations of unusual whistlers during daytime at Jammu, K. K. Singh, R. P. Patel, J. Singh, B. Kumar, A. K. Singh, R. P. Singh, B. L Koul and Lalmani, J. Earth System Sciences, 117, 1-7, 2008 (Impact Factor: 1.040) .

    73. VLF Emissions Observed at Low Latitudes Indian Station Varanasi, R.P. Patel, A. K. Singh, Shubha Singh, R. Singh, K. Singh & R.P. Singh, Adv. Space Res., 41, 1699-1703, 2008 (Impact Factor: 1.409) .

    72. An Explanation of Observation of Pulsing Hiss at Low latitude, A. K. Singh, R. Singh, K. Singh & R. P. Singh, Adv. Space Res., 41, 1695-1698, 2008 (Impact Factor: 1.358) .

    71. Observations of unique whistler-triggered VLF emissions at low latitude Indian ground station Jammu (India), K.K. Singh, M. Altaf, J.P. Singh B. Kumar, A. K. Singh, Lalmani, B.L. Kaul, Ultra Science, 20(2), 387-392, 2008 (Impact Factor: 0.14) .

    70. Observation of unusual whistlers during day time at Jammu, K. K. Singh, R. P. Patel, J. Singh, B. Kumar, A. K. Singh, R. P. Singh, B.N. Kaul and Lalmani, J. Earth System Sciences,117 (3), 219-225, 2008. (Impact Factor: 1.040) .

    69. A statistical study of ESD whistlers observed during daytime at a low latitude Indian ground station Jammu (L = 1.17), M. Altaf, K. K. Singh, A. K. Singh, B.L. Kaul, Lalmani, Ultra Science, 20 (3), 455-462, 2008 (Impact Factor: 0.14) .

    68. Estimation of magnetospheric electron densities from low latitude whistlers, K. K. Singh, S. Singh, R.P. Patel, J. Singh2, A. K. Singh, As. K. Singh, R.P. Singh and Lalmani, Ind. J. Phys., 82(4), 1-8, 2008 (Impact Factor: 1.785) .

    67. Propagation Characteristics and Generation Mechanism of ELF/VLF Hiss Observed at Low-Latitude, Jammu; K. Singh, R. Singh, A. K. Singh and R. P. Singh, Earth Moon Planet, 100, 17-29, 2007 (Impact Factor: 0.830) .

    66. Emergence of Tenth Planet, R.N. Singh & A. K. Singh, Current Science, 92 (3), 272, 2007 (Impact Factor: 0.897) .

    65. Role of Geomagnetic Disturbance on Whistler Occurrence at a Low Latitude Station, S. Singh, R. P. Patel, A. K. Singh, K. K. Singh, and R.P. Singh, Planetary Space Science, doi:10.1016/j.pss.2007.02.001, 55, 1218-1224, 2007 (Impact Factor: 2.224) .

    64. A New Type of Discrete Chorus Emissions Observed at a Low Latitude Ground Station Gulmarg; R. Singh, A. K. Singh, D. Siingh and R.P. Singh; J. Earth System Sciences, 116, 553-559, 2007 (Impact Factor: 1.040) .

    63. Ionospheric Scintillations Induced by Sporadic-E Irregularities Over Low Latitude, Kalpana Patel, A. K. Singh, R. P. Patel and R. P. Singh, Bulletin Astronomical Society India, 35 (4), 625-630, 2007 (Indexed) .

    62. VLF Whistler Wave Activity and Effects of Geomagnetic Disturbances at Low Latitudes, R. P. Patel, S. Singh, A. K. Singh and R. P. Singh, Bulletin Astronomical Society India, 35 (4), 655-662, 2007. (Indexed) .

    61. Statistical Features of Overhead Ionospheric Irregularities and Its Generation Mechanism at Low Latitude; A. K. Singh, R. P. Patel and R. P. Singh; J. Atmos. Solar Terres. Phys., 68, 1116-1124, 2006. (Impact Factor: 1.751) .

    60. Simulation of Nose Whistlers: An Application to Low Latitude Whistlers; K. Singh, A.K. Singh, R.P. Singh and R.N. Singh; Planet. Space Sci., 54, 594-598, 2006. (Impact Factor: 2.224) .

    59. Generation Mechanism for Discrete VLF Emissions Observed at Varanasi, A. K. Singh and R. P. Singh, Pramana, 65 (2), 2005 (Impact Factor: 0.575) .

    58. Role of Solar and Magnetic Activity on VHF Scintillation near the Equatorial Anomaly Crest, R.P. Singh, R.P. Patel and A. K. Singh; Annales Geophysicae, 22, 2849-2860, 2004 (Impact Factor: 1.842) .

    57. Observation of Discrete VLF Emissions at Low Latitude and its Generation Mechanism, A.K. Singh, R.P. Singh; Earth Planet Space, 56, 1067-74, 2004 (Impact Factor: 2.921) .

    56. Generation Mechanism for VLF Chorus Emissions Observed at a Low Latitude Ground Station, A. K Singh and Kjell Ronnmark; Annales Geophysicae, 22, 2067-2072, 2004 (Impact Factor: 1.842) .

    55. Estimation of Ionospheric Parameters by Propagation of Electromagnetic Waves at Low Latitude; A. K. Singh, D.K. Singh and R.P. Singh; Ind. J. Physics, 75B (4), 315-320, 2001 (Impact Factor: 1.785) .

    54. Study of Ionospheric-Magnetospheric Coupling using Whistler Data, A. K. Singh, Ashok K. Singh, R. Singh and R.P. Singh; Ind. J. Phys., 75B (4), 321-325, 2001. (Impact Factor: 1.785) .

    53. Study of Ionospheric Plasma by VHF Waves; R.P. Patel, A. K. Singh and R.P. Singh; Pramana, 55, 5-6, 699-705, 2000 (Impact Factor: 0.575) .

    52. Two Types of ELF Hiss Observed at Varanasi; D.K. Singh, A. K. Singh, R.P. Singh; Annales Geophysicae, 17, 1260-1267, 1999. (Impact Factor: 1.842) .

    51. The Effect of Temperature on Dispersion of Proton Whistlers; Ashok K. Singh, A. K. Singh, D.K. Singh and R.P. Singh; J. Atmos. Solar Terres. Physics, 60, 551-561, 1998. (Impact Factor: 1.751) .

    50. Weak Scattering Theory of Ionospheric Scintillation; A. K. Singh and R.P. Singh; IL Nuovo Cimento, 20(4), 541-552, 1997 (Impact Factor: 0.473) .

    49. Observations and Modelling of Nocturnal Ionospheric Irregularities in Low Latitude Region; A. K. Singh and R.P. Singh; J. Geomag. Geoelectric, 40, 1115-1129, 1997. (Impact Factor: 1.112) .

    48. Propagational Features of Higher Harmonic Tweeks at Low Latitude; A. K. Singh and R.P. Singh; Earth Moon & Planets, 73, 277-290, 1996. (Impact Factor: 0.830) .

    47. Wave Ducting and Scattering Properties of Ionospheric Irregularities; R.P. Singh, A. K. Singh, U.P. Singh & R.N. Singh; Advances in Space Res., 13, 225-228, 1994. (Impact Factor: 1.409) .

    46. Scintillation Study at Varanasi; R.P. Singh, U.P. Singh, A. K. Singh; Ind. J. of Radio and Space Physics, 22, 17-21, 1993. (Impact Factor: 0.25) .

    45. Study of Field Aligned Irregularities by Whistler and VHF Scintillations; R.P. Singh, A. K. Singh and R. N. Singh; Ind. J. of Radio and Space Physics, 22, 342 -346, 1993. (Impact Factor: 0.25) .

    44. Multistation Analysis of VHF Radio Waves Scintillations at Low Latitudes; S. Kumar, A. K. Singh, P. Chawan, A.K. Gwal, B. Singh and R.P. Singh; Ind. J. of Radio and Space Physics, 22, 267-272, 1993. (Impact Factor: 0.25) .

    43. Hybrid-Mode Propagation of Whistlers at Low Latitude; U.P. Singh, A. K. Singh, Lalmani, R.P. Singh and R.N. Singh; Ind. J. of Rad. & Space Phys, 21, 247-249, 1992. (Impact Factor: 0.25) .

    42. Some Features of Low Latitude Higher Harmonic Tweeks; R.N. Singh, R.P. Singh, U.P. Singh and A. K. Singh; Ind. J. of Radio and Space Phys, 21, 377, 1992. (Impact Factor: 0.25) .
C. Full length papers in conference proceedings:


    41. Chemical Characterization of Atmospheric Aerosols Over Varanasi, V. Pratap, S. Tiwari, A. Kumar, P. Kumar, A. K. Singh, IASTA Bulletin, 65-67, 2018.

    40. Impacts of Severe Dust Storms on Aerosol Characteristics over Kanpur, A. Kumar, S. Tiwari, V. Pratap, A.K. Singh, IASTA Bulletin, 68-71, 2018.

    39. Variability of Pm2.5 and Pm10 and the Optical Properties of Aerosols over Varanasi, P. Kumar, A. Choudhary, V. Pratap, A. K. Singh, A. Shukla, IASTA Bulletin, 72-75, 2018.

    38. Urban Emissions Load From Passenger Transportation to the Atmosphere, A. Choudhary, P. Kumar, A. Shukla A. K. Singh, S. Tiwari, IASTA Bulletin, 113-115, 2018.

    37. Influence of lightning on aerosol optical properties over Indo-Gangetic Plain. S. Kumar, D. Siingh, R. P. Singh, A. K. Singh and U. C. Dumka, IASTA Bulletin, 22, 392-394, 2016.

    36. Long Term Aerosol Characteristics and its inter Annual Variability over Varanasi, S. Tiwari and A. K. Singh, IASTA Bulletin, 22, 382-384, 2016.

    36. Ionospheric response to an intense X-class solar flare in equatorial and low latitude region, V. S. Rathore, S. Kumar and A. K. Singh, Proceedings of the 2nd URSI Regional Conference on Radio Science, (URSI RCRS 2015), 16-19 November 2015, New Delhi.

    35. Identification of Solar Sources of Major Geomagnetic Storms between 2010 and 2014, Abha Singh, V. S. Rathore and A. K. Singh, Proceedings of the 2nd URSI Regional Conference on Radio Science, (URSI RCRS 2015), 16-19 November 2015, New Delhi.

    34. Statistical analysis of ionospheric irregularities at low latitude over Varanasi, India during 2009-2014, V. S. Rathore and A. K. Singh, Proceedings of the 2nd URSI Regional Conference on Radio Science, (URSI RCRS 2015), 16-19 November 2015, New Delhi.

    33. Characteristics of Atmospheric Aerosol by SEM-EDX Analysis at Varanasi, A. K. Singh, M. K. Srivastava, M. Singh, A. Srivastava, S. Kumar, Shani Tiwari, S. Tiwari, IASTA Bulletin, 21, 272-275, 2014.

    32. Aerosol Characteristics during Major Dusr Storms over Indo-Gangetic Basin, Sarvan Kumar, S. Kumar, D.G. Kauskaotis, R. P. Singh, and A. K. Singh, IASTA Bulletin, 21, 511-513, 2014.

    31. Heterogeneity in Aerosol Loading over the Indo-Gangetic Basin and their Climate Implications, S. Tiwari, A. K. Srivastava, A. K. Singh and S. Singh, IASTA Bulletin, 21, 521-523, 2014.

    30. Study of Aerosol Types and their Optical Properties over Varanasi using Air Mass Back Trajectory, S. Tiwari, A. K. Srivastava and A. K. Singh, IASTA Bulletin, 21, 524-527, 2014.

    29. Intra-Urban Variability of Atmospheric Aerosols and its Relationship with Optical Properties over a Mega City Delhi, S. Tiwari, A. S. Pipal, A. K. Srivastava, S. Tiwari, A. K. Singh, D. S. Bisht, A. K. Pandey, Manoj K. Srivastava, IASTA Bulletin, 21, 727-629, 2014.

    28. Regional Behaviour of Atmospheric Aerosols Over Indo-Gangetic Basin during Pre-Monsoon, S. Tiwari and A. K. Singh, AIP Conf. Proc. 1527, 637-640, 2013.

    27. Effect of Geomagnetic Storms on Ionospheric Irregularities Using VHF Scintillations at Low Latitude, A. K. Singh, K.K. Singh and S. B. Singh, Proceeding of Beacon Satellite Symposium, P. Doherty and M. Hernandez-Pajares (Eds.) Bath, UK, July 8-12, 2013.

    26. Study of Ionospheric Irregularities using GPS-based Measurements, Sanjay Kumar, D.V. Phani Kumar and A. K. Singh, Proceeding of Beacon Satellite Symposium, P. Doherty and M. Hernandez-Pajares (Eds.) Bath, UK, July 8-12, 2013.

    25. Magnetospheric Plasma Parameters Deduces From Analysis of Multiple-Whistlers Detected By Automatic Whislter Detector (AWD) At Low Latitude Varanasi, S. B. Singh, Ashutosh Kumar Singh and A. K. Singh, Proceedings of the 27th National Symposium of Plasma Science and Technology (PLASMA-2012), 463-466, 2012.

    24. Charecteristics of Ionospheric Plasma Bubbles Using GPS Based Measurements at Varanasi, A. K. Singh, S. B. Singh and Sanjay Kumar, Proceedings of the 27th National Symposium of Plasma Science and Technology (PLASMA-2012), 467-470, 2012.

    23. Behavior of low-latitude ionosphere in terms of total electron content (TEC) during the annular solar eclipse of 15 January, 2010, S. Kumar and A. K. Singh, Proceedings of the National Workshop: Results of Solar Eclipse, SPL, ISRO, 52-54, 2011.

    22. Solar eclipse time ionospheric/magnetospheric studies using VLF, VHF & UHF waves, A. K. Singh, Ashutosh K. Singh, S. Kumar, and S.B. Singh, Proceedings of the National Workshop: Results of Solar Eclipse, SPL, ISRO, 78-79, 2011.

    21. Atmospheric Aerosol Properties Measured at Varanasi located in Indo-Gangetic Basin, S. Tiwari and A. K. Singh, Proceedings of the XXXth URSI General Assembly and Scientific Symposium, Istanbul, Turkey August 13-20, 2011 IEEE Xplore.

    20. Study of equatorial low-latitude ionospheric irregularities during a recent geomagnetic storm of 03 August 2010 using GPS Receiver, S. Kumar and A. K. Singh, Proceedings of the XXXth URSI General Assembly and Scientific Symposium, Istanbul, Turkey August 13-20, 2011 IEEE Xplore.

    19. Phase and Amplitude Perturbations Observed on Subionospheric VLF Signal recorded at Varanasi (L = 1.07) Using SoftPAL Receiver, Ashutosh K. Singh and A. K. Singh Proceedings of the XXXth URSI General Assembly and Scientific Symposium, Istanbul, Turkey August 13-20, 2011 IEEE Xplore.

    18. Variation of aerosol optical depth over Indo-Gangetic basin using AERONET, MODIS and MISR, Sarvan Kumar, Sanjay Kumar and A. K. Singh, Proceeding of IASTA-2010, 19(1-2), 395-398, March, 2010.

    17. Characteristics of ionospheric plasma bubbles observed by DMSP during the year 2005, S. Priyadarshi, S. Kumar and A. K. Singh, Proceeding of Beacon Satellite Symposium, P. Doherty and M. Hernandez-Pajares (Eds.) CIMNE, Barcelona, June 7-11, 2010.

    16. Modelling of ionospheric scintillations at low latitude using insitu data, K. Patel and A. K. Singh, Proceeding of Beacon Satellite Symposium, P. Doherty and M. Hernandez-Pajares (Eds.) CIMNE, Barcelona, June 7-11, 2010.

    15. Study of the ionospheric irregularities by GPS measurements at low latitude station, Varanasi, A. K. Singh, Proceeding of Beacon Satellite Symposium, P. Doherty and M. Hernandez-Pajares (Eds.) CIMNE, Barcelona, June 7-11, 2010.

    14. Different types of Very Low Frequency Emissions (VLF) Observed at Low Latitude Station Varanasi, R.P. Patel, A. K. Singh, Proceed Ist international Conference of Science with VLF Radio Wave: Theory & Observation, Editor, S.K. Charkrabarti, CP1286, 77-82, 2010.

    13. Estimation of D-region Electron Density using Tweeks Measurements at Nainital and Allahabad, P. Pant, R. Singh, B. Veenadhari, A. K. Singh, Proceeding of the Ist international Conference of Science with VLF Radio Wave: Theory & Observation, Editor, S.K. Charkrabarti, CP1286, 77-82, 2010.

    12. Effects of Dust storms on Aerosol loading over IG-basin, Sarvan Kumar, S. Kumar, A. K. Singh, Proceedings of the ICON-GSECCES-2010, Varanasi, India 21-23 December 2010.

    11. Space Weather Studies of Ionospheric Scintillations at Low latitude, A. K. Singh and R.P. Singh; Proc. of ESA Space Weather Workshop, The Netherlands, 2002. .

    10. Study of Ionospheric Irregularities using Radio Wave Scintillation and EISCAT Observations, A. K. Singh; Proc. of EISCAT workshop, IRF-Uppsala, Sweden, 2003.
D. Books and Chapters in Books:


    9. Plasma photonic crystals with inhomogeneous collisional plasma, S. Prasad, V. Singh, and A. K. Singh, Novel features and prospective of photonic crystals, Lap Lambert Academic Publishing, 202-215, 2012.

    8. Long term trends of VLF whistlers and daytime VHF scintillations at low latitude ground station Varanasi, A. K. Singh, R.P. Patel, K. Patel and R. P. Singh, CAWSES-India Report, Editors K.G. Rao & R. Sridharan, ISRO Pub. Bangalore, 248-257, 2009.

    7. Global Positioning System (GPS) and its application in Atmospheric studies, A.K. Singh & Sanjay Kumar, Geo-Imaginations, 21-29, 2011.

    6. Equatorial Plasma Instability and its Role in the Generation of Ionospheric Irregularities; A. K. Singh and S. B. Singh, Scope and Challenges in Plasma Science & Technology, Editor A. K. Singh, Allied Publishers, 81-86, 2005.

    5. Study of Plasma Irregularities in the Ionosphere; R.P. Patel, A.P. Singh, A.K. Singh and R.P. Singh, Scope and Challenges in Plasma Science & Technology, Editor A. K. Singh, Allied Publishers, 153-158, 2005.

    4. ELF Emissions at Low Latitude; D.K. Singh, R.P. Singh and A.K. Singh; Recent Dev. in Atmospheric and Space Sciences, Editors J. Rai and V. Singh, 1-7, 2001 .

    3. Probing of Ionospheric Electron Density Irregularity; A. K. Singh, D. Narayan and R. P. Singh; Recent Advances in Plasma Science and Technology, Editors R.P. Singh S.B. Rai & D. Narayan, Allied Publishers, 60-63, 1995.

    2. Study of Ionospheric Fluctuations Using Electromagnetic Waves; A. K. Singh, Ashok K. Singh and R.P. Singh; Plasma Science, Editor P.K. Ghosh, Prentice-Hall of Ind. Priv. Ltd, 167-170, 1995.

    1. Role of Ionospheric Turbulence on Amplitude Fluctuation of Radio Waves; A. K. Singh, Ashok K. Singh, and R.P. Singh; Plasma Science & Technology, Editor IML Das, Allied Publishers, 215-218, 1993.
E. PAPERS PRESENTED IN CONFERENCES/SYMPOSIA/SEMINARS:
    Invited Talk delivered (Recent): 37 Total Papers presented in Conferences/Symposia/Seminars: 193
    In National Conferences/Symposia/Seminars: 110
    In International Conferences/Symposia/Seminars: 83

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