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Core Faculty

Akshaya Nikumbh

Assistant Professor

My research interest lies in large-scale atmospheric dynamics, South Asian summer monsoon, and extreme climate. My work focuses on understanding diverse atmospheric phenomena elucidated by atmospheric dynamics and thermodynamics.

Research Interests

Climate and weather extremesLarge-scale atmospheric dynamicsSouth Asian summer monsoonTropical convection

akshaya.nikumbh@iitb.ac.in

912-225-765145

RBTIC

Education

Ph.D.

Indian Institute of Science (IISc), Bangalore, Karnataka.

M.Tech

Indian Institute of Space Science and Technology (IIST), Thiruvananthapuram, Kerala.

B.E.

Pune University, Pune, Maharashtra.

Publications

Akshaya Nikumbh, A. B. S. Thakur, A. Chakraborty, G. S. Bhat, J. Sukhatme “The role of North Atlantic blocking high during large-scale heavy rainfall events over central India”, Journal of Atmospheric Sciences, March 2023.
Akshaya Nikumbh, A. Chakraborty, G. S. Bhat, D. M. W. Frierson “Multiscale interactions between monsoon intra-seasonal oscillations and low-pressure systems that produce heavy rainfall events of different spatial extents”, Journal of Climate, September 2021.
Akshaya Nikumbh, A. Chakraborty, G. S. Bhat, D. M. W. Frierson “Large-Scale Extreme Rainfall- Producing Synoptic Systems of the Indian Summer Monsoon.” GRL, May 2020.
Akshaya Nikumbh, A. Chakraborty, G. S. Bhat, “Recent spatial aggregation tendency of rainfall extremes over India.” Scientific Reports, June 2019.
Akshaya Nikumbh, B. PadmaKumari, Sneha Sunil, “Cloud Fraction Retrieval and its Variability during daytime from Ground-based Sky Imagery over a Tropical Station in India.” Journal of Atmospheric and Solar-Terrestrial Physics, May 2019.
Alyssa N. Poletti ,Dargan M. W. Frierson,Travis Aerenson, Akshaya Nikumbh,Rachel Carroll,William Henshaw,Jack ScheffAtmosphere and ocean energy transport in extreme warming scenarios”, PLOS Climate, February 2024.

Current Students

Akash Devgan

PhD

My research will focus on identifying the factors that influence the size and intensity of extreme events, particularly extreme precipitation. By linking these factors to underlying processes, physics, and dynamics, this work aims to deepen our understanding of why the sizes and intensity of extremes change and how they may evolve in the future under a cha..

Soumili Chakraborty

PhD

My research focuses on the thermodynamic perspective of large-scale extreme precipitation using moist static energy as a framework. I aim to study convective aggregation, primarily over India's core monsoon region.