Research Interests

• Mesosphere Lower Thermosphere (MLT) dynamics
• Couplings (vertical, latitudinal, and longitudinal) of the atmospheres
• Atmospheric gravity waves, tides, and planetary waves
• Sudden stratospheric warming and its global effects
• Airglow processes in Earth and planetary atmospheres
• Optical remote sensing of the upper atmosphere from the ground and Satellite-based platforms
• Small-scale GWs and transient features in the MLT region
• Instrumentation for multi-wavelength (UV, VIS, IR) airglow measurements using spectrographic and photometric techniques

Academic Qualifications

• Ph.D., Physics, Physical Research Laboratory, Ahmedabad
• M.Sc., Physics, Department of Physics, D.D.U Gorakhpur University, India

Professional Experience

• 2019-Present, Scientist-SF, Physical Research Laboratory, Ahmedabad, India
• 2014-2019, Scientist-SE, Physical Research Laboratory, Ahmedabad, India
• 2009-2014, Scientist-SD, Physical Research Laboratory, Ahmedabad, India
• 2002-2008, Scientist-SC, Physical Research Laboratory, Ahmedabad, India

Selected Publications

1. Kiran and R. P. Singh (2025),
   Vertical wave characteristics in the MLT region and its seasonal variations using OH(3-1) brightness and rotational temperature from Ahmedabad (23°N, 72.6°E)
   Advances in Space Research, https://doi.org/10.1016/j.asr.2025.01.017
2. Singh, R. P., D. Pallamraju, P. Suryawanshi, and S. Urmalia (2023),
   Studies of atmospheric waves by ground-based observations of OH(3-1) emission and rotational temperature using PRL airglow InfraRed spectrograph (PAIRS)
   Jouranl of Atmospheric and Solar-Terrestrial Physics, https://doi.org/10.1016/j.jastp.2023.106039
3. Pallamraju, D., P. Suryawanshi, S. Urmalia, S. Kumar, S. Saha, R. P. Singh, P. K. Kushwaha, and M. Soni (2023),
   CDAP: A portable CCD-based daytime airglow photometer for investigations of ionosphere-thermosphere phenomena.
   Jouranl of Atmospheric and Solar-Terrestrial Physics, https://doi.org/10.1016/j.jastp.2023.106025
4. Laskar, F. I., J. P. McCormack, J. L. Chau, D. Pallamraju, P. Hoffmann, and R. P. Singh (2019),
   Interhemispheric Meridional Circulation During Sudden Stratospheric Warming.
   Journal of Geophysical Research-Space Physics, https://doi.org/10.1029/2018JA026424
5. Mandal, S., D. Pallamraju, D. K. Karan, K. A. Phadke, R. P. Singh (2019), and P. Suryawanshi (2019),
   On deriving gravity wave characteristics in the daytime upper atmosphere using radio technique.
   Journal of Geophysical Research-Space Physics, https://doi.org/10.1029/2019JA026723
6. Singh, R. P. and D. Pallamraju (2018),
   Mesospheric temperature inversions observed in OH and O2 rotational temperatures from Mount Abu (24.6oN, 72.8oE), India.
   Journal of Geophysical Research-Space Physics, https://doi.org/10.1029/2018JA025703
   (Published as "Research Spotlight" in AGU's Earth & Space Science News).
   
7. Singh, R. P. and D. Pallamraju (2017),
   Near Infrared Imaging Spectrograph (NIRIS) for ground-based mesospheric OH(6-2) and O2(0-1) intensity and temperature measurements.
   Journal of Earth System Science, https://doi.org/10.1007/s12040-017-0865-4
8. Singh, R. P. and D. Pallamraju (2017),
   Large- and small-scale periodicities in the mesosphere as obtained from variations in O2 and OH nightglow emissions.
   Annales Geophysicae, https://doi.org/10.5194/angeo-35-227-2017
9. Singh, R. P. and D. Pallamraju (2016),
   Effect of cyclone Nilofar on mesospheric wave dynamics as inferred from optical nightglow observations from Mount Abu, India.
   Journal of Geophysical Research-Space Physics, https://doi.org/10.1002/2016JA022412
10. Singh, R. P. and D. Pallamraju (2015),
    On the latitudinal distribution of mesospheric temperatures during sudden stratospheric warming events.
    Journal of Geophysical Research-Space Physics, https://doi.org/10.1002/2014JA020355
11. Pallamraju, D., J. Baumgardner, Singh, R. P., F. I. Laskar, C. Mendillo, T. Cook, S. Lockwood, R. Narayanan, T. K. Pant, and S. Chakrabarti (2014).
    Daytime wave characteristics in the mesosphere lower thermosphere region: Results from the Balloon-borne Investigations of Regional-atmospheric Dynamics experiment.
    Journal of Geophysical Research-Space Physics, https://doi.org/10.1002/2013JA019368
12. Pallamraju, D., F. I. Laskar, Singh, R. P., J. Baumgardner, and S. Chakrabarti (2013).
    MISE: A Multiwavelength Imaging Spectrograph using Echelle grating for daytime optical aeronomy investigations.
    Jouranl of Atmospheric and Solar-Terrestrial Physics, https://doi.org/10.1016/j.jastp.2012.12.003

Refereed Technical Publications

13. Kushwaha, P. K., S. Urmalia, D. Pallamraju, Singh, R. P., and P. Suryawanshi (2021).
    Design and Development of Filter Wheel Controller Card, Temperature Controller and Automated Software using Labview for CMAP Instrument.
    PRL-TN-2021-112
14. Phadke, K. A., R. Narayanan, Singh, R. P., and D. Pallamraju (2014).
    An Automated CCD-based Multi-Wavelength Airglow Photometer (CMAP) for Optical Aeronomy Studies.
    PRL Technical Note-2014-107
15. Singh, R. P., D. Pallamraju, and R. Narayanan (2013).
    Development of Automated Digital Optical Imagers for Rocket Trail Photography.
    PRL Technical Note-102