My research goal is to study climate change and variability over the polar regions. I use reanalysis, observations and numerical models to understand the physical processes that drive climate change in the polar regions. The changes in the polar regions can have large impact on global atmosphere and climate. Improved representation of these processes in models can reduce uncertainty in future projections of global as well as regional climate.
Convective anomalies over tropical Pacific can induce large changes in the polar regions, through the generation of atmospheric Rossby waves. I study the dynamics of Rossby wave teleconnection using observation data and models.
The Himalaya-Hindu Kush region, also known as the water tower of Asia, consists of large number of glaciers. The meltwater from these glaciers feed the river basins and large irrigation systems downstream. Changing climate is already impacting the glacial dynamics and thermodynamics over the region. Given the complexity of the region and the lack of observation record, the evolution of Himalayan glaciers are not well understood. Moreover, cloud microphysics and hydrological impact of climate change over the Himalaya-Hindu Kush region is unclear. I plan to address some of these issues using proper field observations and regional climate models.
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Summer Drivers of Atmospheric Variability Affecting Ice Shelf Thinning in the Amundsen Sea Embayment, West Antarctica Deb P., Orr A. , Bromwich D. H., Nicolas J. P., Turner J. , Hosking J. S. By Geophysical Research Letters 45 4124-4133 (2018)
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An assessment of the Polar Weather Research and Forecast (WRF) model representation of near-surface meteorological variables over West Antarctica Deb P., Orr A. , Hosking J. S., Phillips T. , Turner J. , Bannister D. , Pope J. O., Colwell S. By Journal of Geophysical Research - Atmospheres 121 - (2016)
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Absence of 21st century warming on Antarctic Peninsula consistent with natural variability Turner J., Lu H. , White I. , King J. C., Phillips T. , Hosking J. S., Bracegirdle T. J., Marshall G. J., Mulvaney R. , Deb P. By Nature 535 411-415 (2016)
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Non-annular response of sea ice cover in the Indian sector of the Antarctic during extreme SAM events: influence of SAM on sea ice cover over the Indian sector of Antarctica Deb P., Dash M. K., Dey S. P., Pandey P. C. By International Journal of Climatology - (2016)
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Sensitivity of simulated summer monsoonal precipitation in Langtang Valley, Himalaya to cloud microphysics schemes in WRF Orr A., Listowski C. , Couttet M. , Collier E. , Immerzeel W. , Deb P. , Bannister D. By Journal of Geophysical Research Atmospheres 122 6298-6318 (2017)
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Effect of Pacific warm and cold events on the sea ice behavior in the Indian sector of the Southern Ocean Deb P., Dash M. K., Pandey P. C. By Deep Sea Research Part I: Oceanographic Research Papers 84 - (2014)
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Barrier layer characteristics of the Indian Ocean sector of the Southern Ocean during austral summer and autumn Deb P., Dash M. K., Pandey P. C. By Polar Science 18 176-182 (2018)
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Unusual Premonsoon Eddy and Kelvin Wave Activities in the Bay of Bengal During Indian Summer Monsoon Deficit in June 2009 and 2012 Dey S. P., Dash M. K., Deb P. , Samanta D. , Sharma R. , Gairola R. M., R. K., Pandey P. C. By IEEE Geoscience and Remote Sensing Letters 15 483-487 (2018)
Principal Investigator
- Advanced Prediction of Himalayan Climate through Improved Monitoring of Winter Snowfall
Co-Principal Investigator
- Sea Ice Energy Balance and Ice-Ocean Process Studies SPACE APPLICATIONS CENTRE, Indian Space Research Organization
Ph. D. Students
Arnab Sen
Area of Research:
Bhattaram Shravan Kumar
Area of Research: Himalayan Climate Change and future projection
Chittella Sai Prabala Swetha
Area of Research: Mass balance of West Antarctic ice sheet
Ghetiya Satyeshkumar Girdharbhai
Area of Research: Study of Himalayan cryosphere
Indrani Pujaru
Area of Research: Climate change and variability over East Antarctica
Naveen Kumar Tripathi
Area of Research: Variability and trend in Himalayan Cryosphere
Priya Bharati
Area of Research: Climate change and variability in the Indian Himalayas
Sanjiban Dutta
Area of Research: Antarctic Climate variability
