Kamran Ansari
Kamran Ansari
Post Doctoral Fellow (PDF)
Space and Atmospheric Sciences Division
Physical Research Laboratory (PRL), Ahmedabad, 380009, India
Email: kamranansari@prl.res.in, kamraaan1997@gmail.com
Telephone: +91-7926314667
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Research Interests
Characteristics of atmospheric aerosols
Aerosol radiative forcing
Ground- and satellite-based observations of atmospheric aerosols
Professional Experiences
Professional Experiences
Present: Post Doctoral Fellow (PDF) at Physical Research Laboratory (PRL), Ahmedabad, India
Aug 2020 - Aug 2025: Senior Research Fellow (SRF) at PRL, Ahmedabad, India
Aug 2020 - Aug 2022: Junior Research Fellow (JRF) at PRL, Ahmedabad, India
Aug - Dec 2019: Master’s thesis student at Indian Institute of Tropical Meteorology (IITM), Pune, India
Jul - Aug 2019: Summer Research Intern at IITM, Pune, India, under the “Summer Research Fellowship Programme” jointly funded by IASc, INSA, and NASI
May - Jul 2018: Summer Research Intern at PRL, Ahmedabad, India, funded by “PRL Summer Internship Programme – 2018”
Academic Qualifications
Academic Qualifications
2015 - 2020: Integrated M.Sc. in Physics from Center for Basic Sciences, Pt Ravishankar Shukla University, Raipur, India (CGPA: 9.08)
Thesis
Thesis
Ph.D. (Thesis submitted)
Title: Aerosol Characteristics and Radiative Effects over Asia
Supervisor: Prof. S. Ramachandran
Master's
Title: Aerosol influence on warm cloud microphysics as observed over Western Ghats
Supervisor: Dr. G. Pandithurai
This work has been published in Atmospheric Research (2020) and is available here.
Research Publications
Research Publications
Ansari, K., Ramachandran, S., and Cherian, R. (in press). Global Assessment of Aerosol Radiative Effects: New Insights from Observations, Reanalysis, and Climate Models. Science of the Total Environment.
Ansari, K. and Ramachandran, S. (in press). Enhancing accuracy in identifying absorbing aerosol types and their radiative impacts. npj Climate and Atmospheric Science.
Ramachandran, S., Ansari, K., and Cherian, R., 2025. Air Pollution to Atmospheric Warming: Effects of Increasing Anthropogenic Aerosols on South Asia’s Climate. Earth Systems and Environment. https://doi.org/10.1007/s41748-025-00732-w
Ansari, K. and Ramachandran, S., 2025. Global insights on absorption characteristics of aerosols. Science of the Total Environment, 959, 178178. https://doi.org/10.1016/j.scitotenv.2024.178178
Ramachandran, S. and Ansari, K., 2025. Influence of changes in anthropogenic and natural sources on global aerosol optical depth during COVID-19 lockdown: Ground-based observations, satellites, models. Atmospheric Environment, 343, 120948. https://doi.org/10.1016/j.atmosenv.2024.120948
Ansari, K. and Ramachandran, S., 2024. Global changes in aerosol single scattering albedo during COVID-19. Atmospheric Environment, 333, 120649. https://doi.org/10.1016/j.atmosenv.2024.120649
Ansari, K. and Ramachandran, S., 2024. Optical and physical characteristics of aerosols over Asia: AERONET, MERRA-2 and CAMS. Atmospheric Environment, 326, 120470. https://doi.org/10.1016/j.atmosenv.2024.120470
Ansari, K. and Ramachandran, S., 2023. Radiative effects of absorbing aerosol types over South Asia. Science of the Total Environment, 858, 159969. https://doi.org/10.1016/j.scitotenv.2022.159969
Ansari, K. and Ramachandran, S., 2023. Aerosol characteristics over Indo-Gangetic Plain from ground-based AERONET and MERRA-2/CAMS model simulations. Atmospheric Environment, 293, 119434. https://doi.org/10.1016/j.atmosenv.2022.119434
Ansari, K., Pandithurai, G., and Kumar, V.A., 2020. Role of droplet size classes on the cloud droplet spectral dispersion as observed over the Western Ghats. Atmospheric Research, 246, 105104. https://doi.org/10.1016/j.atmosres.2020.105104
Ghosh, P., Sharma, S., and Ansari, K., 2019. Investigation of vertical wavenumber spectra during sudden stratospheric warming (SSW) events over the Indian region. Remote Sensing Letters, 10(7), 699–708. https://doi.org/10.1080/2150704x.2019.1601274
Conference Proceedings
Conference Proceedings
Ansari, K. and Ramachandran, S., 2024. Global Insights on Optical and Radiative Characteristics of Aerosols. In Indian Aerosol Science and Technology Association (IASTA) 2024 Conference Proceedings (pp. 648-650). https://doi.org/10.5281/zenodo.15498453
Ansari, K. and Ramachandran, S., 2024. Aerosol absorption characteristics over Asia and the Rest of the World: AERONET observations and model validation. In American Geophysical Union (AGU) Fall Meeting 2024 (A07-55). https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1669367
Ansari, K. and Ramachandran, S., 2024. Aerosol optical and radiative properties over Asia: Ground-based AERONET observations. European Geosciences Union (EGU) General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-907. https://doi.org/10.5194/egusphere-egu24-907
Ansari, K. and Ramachandran, S., 2023. Single scattering albedo of aerosols during COVID-19 lockdowns: Satellite observations and model simulations. In AGU Fall Meeting 2023 (A21-09). https://agu.confex.com/agu/fm23/meetingapp.cgi/Paper/1386129
Ansari, K. and Ramachandran, S., 2023. Physical and Optical Characteristics of Aerosols over Asia: AERONET, MERRA-2 and CAMS. In IASTA 2023 Conference Proceedings (pp. 140-141). https://doi.org/10.5281/zenodo.10321321
Ansari, K. and Ramachandran, S., 2022. Aerosol-induced Atmospheric Radiative Forcing and Heating Rate over South Asia increase due to Black Carbon (BC) and BC mixed with dust. In AGU Fall Meeting 2022 Abstracts (Vol. 2022, pp. A34B-01). https://agu.confex.com/agu/fm22/meetingapp.cgi/Paper/1163591
Kumar, G., Vernier, J.P., Madhavan, B.L., Ansari, K., and Sinha, P.R., 2021. Ubiquity of quasi-aerosol layers in the free troposphere over the Indian region: Results from multiyear satellite observations. EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-11003. https://doi.org/10.5194/egusphere-egu21-11003
Awards, Achievements, and Grants
Awards, Achievements, and Grants
DST-SERB International Travel Grant (ITS) to attend European Geosciences Union (EGU) General Assembly 2024 in Vienna, Austria, during 14–19 April 2024.
Awarded Attendance Support (travel grant and fees waiver) by the organizing committee of International Radiation Symposium (IRS) to attend IRS 2024 in Hangzhou, China. (Not availed)
Received partial funding from Surface Ocean – Lower Atmosphere Study (SOLAS) and German Ministry for Education and Research (BMBF) to attend SOLAS Summer School – 2023 held at Mindelo, Cabo Verde, during 5–15 June 2023.
Best poster presentation entitled “Middle atmospheric temperature climatology over Indian regions using SABER onboard TIMED observation” at “20th National Space Science Symposium (NSSS) – 2019” organized by Savitribai Phule Pune University (SPPU), Pune, India.
3rd position in the poster presentation entitled “Study of the Motion of Compound Pendulum through Fast Fourier Transform” at “National Conference on Signal Processing, Sustainable Energy Materials, and Astronomy & Astrophysics” organized by Pt. Ravishankar Shukla University, Raipur.
Technical Skills
Technical Skills
OS: Linux, macOS, and Windows
Programming: Python, MATLAB, and HPC Cluster
Models/Softwares: HYSPLIT/PySPLIT, SBDART, OPAC, TrajStat, IGOR, Origin, and Latex
External Links
External Links
Google Sites
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