Scientist Profile

Dr.(Smt.) Sujata Kalyan Mandke

Designation
: Scientist D

Phone
: +91-(0)20-25904508

Fax
: +91-(0)20-25865142

Email ID
: amin[at]tropmet[dot]res[dot]in

Indian summer Monsoon variability
Degree University Year Stream
Ph.D Pune University 2010 Physics
M.Tech. Pune University 1992 Atmospheric Science
M.Sc. Nagpur University 1990 Physics
B.Sc. Nagpur University 1988 Physics, Mathematics, Electronics

 Indian summer monsoon variability with focus on intra-seasonal variability

 Tropical cyclones over North Indian Ocean

 Polar-Indian summer monsoon Teleconnection

Award Name Awarded By Awarded For Year
Third rank Indian Institute of Tropical Meteorology, Pune Third rank in Research Oriented Training Programme 1992-93 in Meteorology, Indian Institute of Tropical Meteorology, Pune. 1992
Year Designation Institute
2011-Present Scientist D Indian Institute of Tropical Meteorology, Pune
2003-2010 Scientist C Indian Institute of Tropical Meteorology, Pune
1999-2003 Scientist B Indian Institute of Tropical Meteorology, Pune
1994-1999 Junior Scientific Officer Indian Institute of Tropical Meteorology, Pune
1993-1994 Research fellow Indian Institute of Tropical Meteorology, Pune
1992-1993 Research fellow Centre for Mathematical Modelling and Computer simulation, Bangalore

Research Highlight


Mandke Sujata K. and Vaisakh, S.B. Towards Understanding the weekly rainfall variability over India in June 2022, Climate Dynamics (online), 63:154, March 2025

This study investigates the factors driving distinct weekly rainfall variability over India during June 2022 and identifies the mechanisms that led to the large excess rainfall over northwest India in its third week using multiple observed datasets. The rainfall over India in June 2022 was characterized by pronounced variability on weekly scale, along with the uneven spatial distribution from week to week. The country experienced the deficient rainfall in the first (-42%) and second (-24%) week, followed by excess rainfall (+ 44%) in the third week and again deficient rainfall (-30%) in the fourth week of June 2022. This weekly rainfall variation is found to be influenced by: (i) anomalous large-scale circulation modified by the intensity and location of Western Pacific subtropical high (ii)subtropical upper tropospheric Asian jet over north India. This study further analyses the large excess rainfall over northwest India in the third week of June 2022. The background active phase of Indian monsoon and the southward penetrated upper tropospheric midlatitude trough of Rossby wave located over northwest India, interacted with each other, and reinforced the prevailing active monsoon condition over the region. This facilitated the excess rainfall over northwest India.

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