Aditya Sengupta

Aditya Sengupta

Graduate Researcher at ARC Centre of Excellence for 21st Century Weather and pursuing a Doctor of Philosophy in Science from the University of Melbourne

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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.

Pages

Posts

A Long Way to Melbourne

4 minute read

Published:

My journey from India to Australia, from Delhi to Melbourne.

Regridding .nc files using Python

1 minute read

Published:

Here is a basic script to re-grid multiple .nc data files in python using xesmf, xarray and dask libraries and output to a new directory -

Great Minds

1 minute read

Published:

The Solvay Conference in Belgium

Chaos

1 minute read

Published:

A brief outlook on the beauty in chaos

portfolio

publications

Probing into the wintertime meteorology and particulate matter (PM2.5 and PM10) forecast over Delhi

Published in Atmospheric Pollution Research, 2022

Analysing the performance of high resolution air-quality and meteorological parameters obtained from the forecasting system developed at IITM, Pune against observation data from the WIFEX campaign and to calculate statistical performance and skill score of model AQI output against CPCB observation data over Delhi-NCR during winter 2020-2021.

Recommended citation: Sengupta, A., Govardhan, G., Debnath, S., Yadav, P., Kulkarni, S.H., Parde, A.N., Lonkar, P., Dhangar, N., Gunwani, P., Wagh, S. and Nivdange, S., 2022. Probing into the wintertime meteorology and particulate matter (PM2. 5 and PM10) forecast over Delhi. Atmospheric Pollution Research, 13(6), p.101426. https://doi.org/10.1016/j.apr.2022.101426

Seasonal variations in the dynamic and thermodynamic response of precipitation extremes in the Indian subcontinent

Published in Climate Dynamics, 2022

The major objectives of this study were three-fold. First, to analyse the seasonal cahnges in the apparent scaling rates over the Indian subcontinent and to determine the differences in the departure from the expected climate scaling rate using ERA5 reanalysis temperature and precipiatation data. Second, to use ERA5 data on pressure levels to determine the seasonal variations of the dynamic and thermodynamic contribution to precipitation extremes and find the factos that cause these deviations in scaling rates. Third, to further probe into these variations using composite analysis of the various climate variables as dynamic and thermodynamic indices to find the major driving factors behind extremes across seasons.

Recommended citation: Sengupta, A., Vissa, N.K. & Roy, I. Seasonal variations in the dynamic and thermodynamic response of precipitation extremes in the Indian subcontinent. Clim Dyn (2022). https://doi.org/10.1007/s00382-022-06613-6

Assessing the performance of satellite derived and reanalyses data in capturing seasonal changes in extreme precipitation scaling rates over the Indian subcontinent

Published in Atmospheric Research, 2023

In the present study, the performance of three high resolution data sets - GPM-IMERG satellite derived, ERA5 and IMDAA reanalysis precipitation - in determining the seasonal variations in precipitation-temperature scaling rates are investigated. When compared with the IMD data, IMERG and IMDAA capture the spatial variations and magnitude of scaling rates of daily precipitation extremes much better than ERA5

Recommended citation: Sengupta, A., Vissa, N. K., & Roy, I. (2023). Assessing the performance of satellite derived and reanalyses data in capturing seasonal changes in extreme precipitation scaling rates over the Indian subcontinent. Atmospheric Research, 288, 106741. https://doi.org/10.1016/j.atmosres.2023.106741

Exploring climate stabilisation at different global warming levels in ACCESS-ESM-1.5

Published in Earth System Dynamics, 2024

Governments are targeting net-zero emissions later this century with the aim of limiting global warming in line with the Paris Agreement. However, few studies explore the long-term consequences of reaching net-zero emissions and the effects of a delay in reaching net-zero. We use the Australian Earth system model to examine climate evolution under net-zero emissions. We find substantial changes which differ regionally, including continued Southern Ocean warming and Antarctic sea ice reduction.

Recommended citation: King, A. D., Ziehn, T., Chamberlain, M., Borowiak, A. R., Brown, J. R., Cassidy, L., Dittus, A. J., Grose, M., Maher, N., Paik, S., Perkins-Kirkpatrick, S. E., and Sengupta, A.: Exploring climate stabilisation at different global warming levels in ACCESS-ESM-1.5, Earth Syst. Dynam., 15, 1353–1383, 2024. https://doi.org/10.5194/esd-15-1353-2024

Inequity in Population Exposure to Accelerated Warming

Published in Geophysical Research Letters, 2024

The issue of whether climate change is accelerating has sparked heated debate in recent months. Here, we examine for acceleration in warming rates and explore possible causes for regional differences. We find, the rate of global warming is accelerating, and show that regions with large population and low socioeconomic development experience reduced acceleration due to high local aerosol emissions. As we transition to clean-energy alternatives, rapid reduction in aerosol emissions without a concurrent reduction in greenhouse gas emissions could expose a large fraction of the world's most vulnerable people to a sudden acceleration of warming. This would also increase exposure to more intense and frequent heat extremes for highly vulnerable populations. These results call for targeted climate adaptation strategies that direct attention to low-socioeconomic aerosol masked regions.

Recommended citation: Sengupta, A., King, A. D., & Ryan, R. G. (2024). Inequity in population exposure to accelerated warming. Geophysical Research Letters, 51(22), e2024GL110644. https://doi.org/10.1029/2024GL110644

Do CMIP6 Models Capture Seasonal and Regional Differences in the Asymmetry of ENSO-Precipitation Teleconnections?

Published in JGR: Atmospheres, 2025

The impact of ENSO on regional rainfall is often opposite between these two major phases of ENSO in various regions around the world. However, the two ENSO patterns of rainfall are not always mirror images of one another. Essentially, the rainfall response can often be higher or lower in magnitude during one phase compared to the other, which is often described as an asymmetric response of precipitation to ENSO. We assess the ability of 50 coupled climate models in simulating the seasonal and regional differences in asymmetric response using observations and reanalysis data sets as reference. Model performance is found to be poor across all regions and season, mainly because of the inability of the models in simulating the observed skewness in the regional precipitation anomaly distribution

Recommended citation: Sengupta, A., King, A. D., & Ryan, R. G. (2024). Inequity in population exposure to accelerated warming. Journal of Geophysical Research: Atmospheres, 130(2), e2024JD041031. https://doi.org/10.1029/2024JD041031

talks

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.