S. Ramachandran

About

S. Ramachandran is a prominent atmospheric scientist whose research centers on aerosol characterization, radiative effects, and their broader implications for climate science across South Asia and globally. With a career spanning two decades of impactful scholarship, Ramachandran has made foundational contributions to understanding how aerosols — from urban-industrial pollution to mineral dust and biomass burning — influence atmospheric heating, climate feedback mechanisms, and regional air quality. Among his most celebrated contributions is his work on multiparameter aerosol classification methods applied to spaceborne polarimetry (2014, 169 citations), which significantly advanced satellite retrieval accuracy for aerosol typing. His analysis of aerosol optical depths over India's major cities using MODIS data (2007, 100 citations) provided critical early insights into urban pollution dynamics across Chennai, Mumbai, Kolkata, and New Delhi. His 2020 study (86 citations) revealed a striking dipole pattern in aerosol-induced atmospheric heating between South and East Asia, reshaping understanding of regional climate impacts. More recently, Ramachandran has leveraged AERONET observational networks alongside reanalysis models like MERRA-2 and CAMS to evaluate aerosol optical properties with global and regional precision. His body of work — accumulating over 550 citations — represents an essential resource for researchers navigating the complex intersection of atmospheric chemistry, remote sensing, and climate science.

Research Focus

Key Achievements

Top Papers

1. 1
   A multiparameter aerosol classification method and its application to retrievals from spaceborne polarimetry

   169 citations · 2014
2. 2
   Aerosol optical depth and fine mode fraction variations deduced from Moderate Resolution Imaging Spectroradiometer (MODIS) over four urban areas in India

   100 citations · 2007
3. 3
   Aerosol-induced atmospheric heating rate decreases over South and East Asia as a result of changing content and composition

   86 citations · 2020
4. 4
   Aerosol characteristics over Indo-Gangetic Plain from ground-based AERONET and MERRA-2/CAMS model simulations

   36 citations · 2022
5. 5
   Optical and physical characteristics of aerosols over Asia: AERONET, MERRA-2 and CAMS

   24 citations · 2024
6. 6
   Radiative effects of absorbing aerosol types over South Asia

   24 citations · 2022
7. 7
   Global and regional evaluation of a global model simulated AODs with AERONET and MODIS observations

   13 citations · 2017
8. 8
   Global insights on absorption characteristics of aerosols

   3 citations · 2024
9. 9
   Influence of changes in anthropogenic and natural sources on global aerosol optical depth during COVID-19 lockdown: Ground-based observations, satellites, models

   2 citations · 2024

Key Collaborators

Contact & Links