भारतीय उष्णदेशीय मौसम विज्ञान संस्थान
Indian Institute of Tropical Meteorology
पृथ्वी विज्ञान मंत्रालय, भारत सरकार का एक स्वायत्त संस्थान
An Autonomous Institute of the Ministry of Earth Sciences, Govt. of India
Scientist Profile
Ms. Chaitri Roy
Designation
: Scientist D
Phone
: +91-(0)20-25904843
Fax
: +91-(0)20-25865142
Email ID
: chaitri[dot]cat[at]tropmet[dot]res[dot]in
| Degree | University | Year | Stream |
|---|---|---|---|
| Ph. D | Savitribai Phule Pune University (SPPU) | 2018-current | Atmospheric and Space Sciences |
| M.Sc. | University of Calcutta | 2012 | Chemistry |
| B.Sc. | University of Calcutta | 2010 | Chemistry |
Dynamics and chemistry of the upper troposphere and lower stratosphere (UTLS)
Ozone variability in the UTLS
Variability of trace gases and aerosols, and their relation with Asian monsoon
Chemistry climate modelling
| Award Name | Awarded By | Awarded For | Year |
|---|---|---|---|
| Fulbright Kalam Doctoral Fellowship | The J. William Fulbright Foreign Scholarships Board (FSB), Washington D.C., U.S.A. and Department of Science & Technology, Ministry of Science & Technology, Government of India | Excellence in scientific research | 2020-2021 |
| Roland Schlich travel grant | European Geosciences Union | To present paper at EGU general assembly 2020 | 2020 |
| National Space Science Symposium (NSSS) Best Paper Award | Pune University, ISRO and IUCAA | Best Paper | 2019 |
| Best Presentation Award | IITM, Pune & ICTP, Italy | Best presentation | 2016 |
| Best Poster Award | Indian Institute of Science, Bangalore | Best poster presentation | 2015 |
| Year | Designation | Institute |
|---|---|---|
| 2022-Present | Scientist D | Indian Institute of Tropical Meteorology, Pune |
| 2018-2021 | Scientist C | Indian Institute of Tropical Meteorology, Pune |
| 2014-2017 | Scientist B | Indian Institute of Tropical Meteorology, Pune |
| 2012-2013 | Trainee scientist | Indian Institute of Tropical Meteorology, Pune |
Research Highlight
Estimation of Stratospheric Intrusions During Indian Cyclones
Deep convection associated with tropical cyclones leads to stratosphere-troposphere exchange (STE), which affects the upper-tropospheric ozone concentrations in the vicinity of the cyclones. Using reanalysis data sets, aircraft observations, and model simulations, this study estimates the ozone enhancements over India caused by STE associated with North Indian Ocean (NIO) cyclones formed between 2007 and 2017. During the NIO cyclones, stratospheric ozone accounts for roughly 60% of the excess upper tropospheric ozone over India. Stratospheric intrusion caused by cyclones in the Bay of Bengal and the Arabian Sea affected the upper tropospheric ozone levels over North and South India, respectively. The stratospheric ozone was found to propagate downward into the troposphere, frequently reaching 600 hPa and, in some cases, the surface.