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
Dr. Sandeep Narayanasetti
Designation
: Scientist D
Phone
: +91-(0)20-25904817
Fax
: +91-(0)20-25865142
Email ID
: sandeep[dot]cat[at]tropmet[dot]res[dot]in
| Degree | University | Year | Stream |
|---|---|---|---|
| Ph.D. | Savitribai Phule Pune University | 2023 | Atmospheric and Space Sciences |
| M.Sc (Five year Integrated) | University of Hyderabad | 2012 | Chemistry |
Physical Oceanography
Climate Science
Earth System Modeling and Research
Ocean Modeling
| Award Name | Awarded By | Awarded For | Year |
|---|
| Year | Designation | Institute |
|---|---|---|
| 2021-Present | Scientist D | Indian Institute of Tropical Meteorology, Pune |
| 2017-2020 | Scientist C | Indian Institute of Tropical Meteorology, Pune |
| 2014-2016 | Scientist B | Indian Institute of Tropical Meteorology, Pune |
| 2012-2013 | Trainee Scientist | Indian Institute of Tropical Meteorology, Pune |
Research Highlight
Using observations and long term simulations of an ocean-biogeochemical coupled model, we investigate the biological response in the southern subtropical Indian Ocean (SIO) associated with Ningaloo Niño and Niña events. Ningaloo events have large impact on sea surface temperature (SST) with positive SST anomalies (SSTA) seen off the west coast of Australia in southern SIO during Ningaloo Niño and negative anomalies during Niña events. Our results indicate that during the developing period of Ningaloo Niño, low chlorophyll anomaly appears near the southwest Australian coast concurrently with high SSTA and vice-versa during Niña, which alter the seasonal cycle of biological productivity. The difference in the spatiotemporal response of chlorophyll is due to the southward advection of Leeuwin current during these events. Increased frequency of Ningaloo Niño events associated with cold phase of Pacific Decadal Oscillation (PDO) resulted in anomalous decrease in productivity during Austral summer in the SIO in the recent decades.