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Centre for Atmospheric and Oceanic Sciences

Centre for Atmospheric and Oceanic Sciences

Indian Institute of Science

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Welcome to the Centre for Atmospheric and Oceanic Sciences. Growing from a department focused on the Indian monsoon, our research now spans the entire realm of atmosphere, ocean & climate science. CAOS is one of the few centres in the world, most certainly in India, where these problems are tackled using a combination of observational, experimental, numerical modeling, data analysis and theoretical techniques.
Worldwide efforts over the past few decades, including those at CAOS, have revealed the details and complexities of the atmosphere, ocean and climate system. Our vision for the next decade is ambitious. We believe that it is an exciting time in our field of science with the opportunity to bring things together and address grand challenges. In CAOS, with a focus on the tropical climate, we hope to build a coherent framework that accounts for both local details and global teleconnections.
 

Graduate study at CAOS

CAOS offers a supportive environment for graduate study. Students can pursue MTech and PhD degrees, and are trained to think across disciplines, ask fundamental questions, and tackle real-world weather and climate problems.

We offer courses ranging from the basics of climate science to advanced fluid dynamics. The full list is on the courses page.

CAOS SEMINAR

  • Speaker: Dr. Aman Gupta (Stanford University)
    Title: Machine Learning for Weather and Climate Modeling: Nonlocal Gravity Wave Parameterizations and Monsoon-time Benchmarking of AI Weather Models

    Date: Thursday, 29.10.2026

    Time: 03:30 pm

    Teams Meeting link
    Abstract
  • PhD Thesis Defence

    Student: Thanangka Chutia

    Thesis Advisors: A. Chakraborty, G. S. Bhat
    Title: Diurnal Variations of the Indian Summer Monsoon Rainfall 

    Date: Monday, 2 November 2026

    Time: 3:30 PM

    Teams Meeting link
    Abstract

  • Speaker: Greg M McFarquhar Cooperative Institute for Severe and High-Impact Weather Research and Operations and School of Meteorology, University of Oklahoma, Norman OK, USA
    Title: Aerosol-cloud-precipitation interactions in developing cumuli: in-situ, remote sensing and modeling studies in the vicinity of Houston, Texas

    Date: 5 November 2026 (Thursday)​

    Time: 02:30 pm

    Teams Meeting link
    Abstract

Latest Updates

  • Antarctic Sea ice decline makes key ocean water mass saltier, raises warming concerns - Kaushik Mishra & Prof. Bishakhdatta Gayen
    Abstract
    Video

Latest Publications

  • Develop a single index for low-pressure systems - Prof. G Bala
  • An Investigation of the Characteristics of Indian Summer Monsoon Low-Pressure Systems Under Stratospheric Aerosol Geoengineering - Mahendra Singh, Prof. Govindasamy Bala, Prof. Ashwin K. Seshadri

Latest Photos

  • International Workshop & Summer School, Oceans in a Changing Climate & their Prediction from 8 July to 18 July 2025
  • IISc Convocation 2025

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