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Environmental Sciences

D-Index
41
Citations
5902
World Ranking
7788
National Ranking
82

Overview

M. Venkat Ratnam is affiliated with the National Atmospheric Research Laboratory in India. Their research primarily focuses on atmospheric and environmental sciences, with extensive contributions in Earth and Planetary Sciences as well as Environmental Science.

Their work broadly covers several subfields, including Atmospheric Science, Global and Planetary Change, Astronomy and Astrophysics, Health, Toxicology and Mutagenesis, and Environmental Engineering. The main topics addressed in their research involve Atmospheric Ozone and Climate, Atmospheric chemistry and aerosols, Atmospheric aerosols and clouds, Ionosphere and magnetosphere dynamics, Meteorological Phenomena and Simulations, Climate variability and models, and Air Quality and Health Impacts.

Key publication venues where M. Venkat Ratnam has frequently published include:

  • Atmospheric Research
  • Atmospheric Environment
  • Atmospheric Pollution Research
  • Journal of Atmospheric and Solar-Terrestrial Physics
  • Atmospheric chemistry and physics

Their recent papers illustrate research interests in atmospheric phenomena and climatic effects. Selected publications include:

  • "Validation of ICON-MIGHTI Thermospheric Wind Observations: 2. Green-Line Comparisons to Specular Meteor Radars," 2021, Journal of Geophysical Research Space Physics
  • "Impact of the 2018 Ambae Eruption on the Global Stratospheric Aerosol Layer and Climate," 2020, Journal of Geophysical Research Atmospheres
  • "Lightning occurrences and intensity over the Indian region: long-term trends and future projections," 2021, Atmospheric chemistry and physics
  • "Long-term trends in Aerosol Optical Depth obtained across the globe using multi-satellite measurements," 2022, Atmospheric Environment
  • "Changing patterns in aerosol vertical distribution over South and East Asia," 2021, Scientific Reports

M. Venkat Ratnam collaborates frequently with a network of researchers. Notable co-authors include:

  • B.L. Madhavan
  • Chaithanya D. Jain
  • Ghouse Basha
  • S. Vijaya Bhaskara Rao
  • Sivan Thankamani Akhil Raj

Best Publications

  • Nowcasting severe convective activity over southeast India using ground‐based microwave radiometer observations

    A. Madhulatha;M. Rajeevan;M. Venkat Ratnam;Jyoti Bhate

  • Identification of atmospheric boundary layer height over a tropical station using high-resolution radiosonde refractivity profiles: Comparison with GPS radio occultation measurements

    Ghouse Basha;M. Venkat Ratnam

  • Historical and Projected Surface Temperature over India during the 20 th and 21 st century

    Ghouse Basha;Pangaluru Kishore;M. Venkat Ratnam;Achuthan Jayaraman

  • BATAL: The Balloon measurement campaigns of the Asian Tropopause Aerosol Layer

    J.-P. Vernier;T. D. Fairlie;T. Deshler;M. Venkat Ratnam

  • Global and Seasonal Variations of Stratospheric Gravity Wave Activity Deduced from the CHAMP/GPS Satellite

    M. Venkat Ratnam;G. Tetzlaff;Christoph Jacobi

  • Global (50°S–50°N) distribution of water vapor observed by COSMIC GPS RO: Comparison with GPS radiosonde, NCEP, ERA-Interim, and JRA-25 reanalysis data sets

    P. Kishore;M. Venkat Ratnam;S.P. Namboothiri;Isabella Velicogna

  • Lightning occurrences and intensity over the Indian region: Long-term trends and future projections

    Unknown

  • Diurnal variability of stability indices observed using radiosonde observations over a tropical station: Comparison with microwave radiometer measurements

    M. Venkat Ratnam;Y. Durga Santhi;M. Rajeevan;S. Vijaya Bhaskara Rao

  • Characteristics of gravity waves with short vertical wavelengths observed with radiosonde and GPS occultation during DAWEX (Darwin Area Wave Experiment)

    Toshitaka Tsuda;M. Venkat Ratnam;Peter T. May;M. Joan Alexander

  • Enhancement of gravity wave activity observed during a major Southern Hemisphere stratospheric warming by CHAMP/GPS measurements

    M. Venkat Ratnam;T. Tsuda;C. Jacobi;Y. Aoyama

  • Validation of ICON-MIGHTI Thermospheric Wind Observations: 2. Green-Line Comparisons to Specular Meteor Radars.

    Brian J. Harding;Jorge L. Chau;Maosheng He;Christoph R. Englert

  • A robust method to determine global distribution of atmospheric boundary layer top from COSMIC GPS RO measurements

    Unknown

  • Michelson Interferometer for Global High-Resolution Thermospheric Imaging (MIGHTI) On-Orbit Wind Observations: Data Analysis and Instrument Performance

    Unknown

  • MST radar and radiosonde observations of inertia‐gravity wave climatology over tropical stations: Source mechanisms

    M. Venkat Ratnam;A. Narendra Babu;V. V. M. Jagannadha Rao;S. Vijaya Bhaskar Rao

  • Evidence for tropospheric wind shear excitation of high-phase-speed gravity waves reaching the mesosphere using the ray-tracing technique

    M. Pramitha;M. Venkat Ratnam;A. Taori;B. V. Krishna Murthy

  • Changing patterns in aerosol vertical distribution over South and East Asia.

    M. Venkat Ratnam;P. Prasad;S. T. Akhil Raj;M. Roja Raman

  • Role of dynamics on the formation and maintenance of the elevated aerosol layer during monsoon season over south-east peninsular India

    M. Venkat Ratnam;P. Prasad;M. Roja Raman;V. Ravikiran

  • Characteristics of 10-day Kelvin Wave Observed with Radiosondes and CHAMP/GPS Occultation during the CPEA Campaign (April-May, 2004)

    Toshitaka Tsuda;M. Venkat Ratnam;Toshiaki Kozu;Shuichi Mori

  • Impact of the 2018 Ambae Eruption on the Global Stratospheric Aerosol Layer and Climate

    Corinna Kloss;Pasquale Sellitto;Bernard Legras;Jean‐Paul Vernier

  • Long-term trend analysis and climatology of tropical cirrus clouds using 16 years of lidar data set over Southern India

    A. K. Pandit;H. S. Gadhavi;M. Venkat Ratnam;K. Raghunath

  • Assessment of GPS radiosonde descent data

    M. Venkat Ratnam;N. Pravallika;S. Ravindra Babu;G. Basha

  • Long-term observations of black carbon aerosol over a rural location in southern peninsular India: Role of dynamics and meteorology

    V. Ravi Kiran;S. Talukdar;M. Venkat Ratnam;A. Jayaraman

  • Characteristics of the Tropical Easterly Jet: Long‐term trends and their features during active and break monsoon phases

    M. Roja Raman;V. V. M. Jagannadha Rao;M. Venkat Ratnam;M. Rajeevan

  • Validation of the COSMIC radio occultation data over Gadanki (13.48°N, 79.2°E): a tropical region.

    D. N. Rao;M. V. Ratnam;Sanjay Mehta;Debashis Nath

  • Characteristics of gravity waves with short vertical wavelengths observed with radiosonde and GPS occultation during DAWEX (Darwin Area Wave Experiment) : Darwin Area Wave Experiment (DAWEX)

    Toshitaka Tsuda;M. Venkat Ratnam;Peter T. May;M. Joan Alexander

Frequent Co-Authors

Toshitaka Tsuda
Toshitaka Tsuda Kyoto University
Isabella Velicogna
Isabella Velicogna University of California, Irvine
Taha B. M. J. Ouarda
Taha B. M. J. Ouarda Institut National de la Recherche Scientifique
M. Rajeevan
M. Rajeevan Government of India
Jonathan H. Jiang
Jonathan H. Jiang California Institute of Technology
Manish Naja
Manish Naja Aryabhatta Research Institute of Observational Sciences
M. Joan Alexander
M. Joan Alexander Northwest Research Associates
James M. Russell
James M. Russell Brown University
Gufran Beig
Gufran Beig National Institute of Advanced Studies
S. Suresh Babu
S. Suresh Babu University of Tennessee at Knoxville

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