SMAST / Estuarine & Ocean Sciences
School for Marine Science & Technology East, New Bedford 230
|1979||Indian Institute of Technology, Kharagpur, India||B.Tech. Naval Architecture|
|1981||Indian Institute of Technology, New Delhi, India||M.Tech. Applied Mechanics|
|1990||University of Rhode Island, Kingston, RI||Ph.D. Ocean Engineering|
Earth's Climate as a Dynamic System. Topics include: Observation and Analysis Tools; Radiation, Heat and Water budget; Atmospheric Circulation; Atmosphere-Ocean Relationships; Natural and Anthropogenic Drivers of Climate Change; Paleaoclimatic investigations to Future climate projection; Human and Ecosystem Vulnerabilities; Climate Change Mitigation and Energy; Human Needs, Actions and Public Policy; Climate Studies as a Scientific Endeavor in a Changing Society.
Ocean atmosphere dynamic interaction processes related to short-term and long-term climate variability. 2-layer models and physics of El Nino/southern oscillation, North Atlantic Oscillation and monsoon dynamics are discussed with the perspective of global climate change. During the semester the class will conduct a real-time monitoring experiment of the Pacific/Atlantic Ocean using the Internet. Also presented are advanced assimilation techniques of satellite (GEOSTAT, Topex/Poseidon, SeaWifs, MODAS) and in-situ data from the World Ocean Circulation Experiment (WOCE) in numerical climate models.
Seminar discussions and presentations based on research or detailed literature surveys.
- Coastal operational ocean modeling (western North Atlantic (MARCOOS), Brazil Current system, Trinidad-North Brazil Current ring region, Gulf of Maine/Georges Bank)
- Basin-scale circulation modeling to understand the North Atlantic Oscillation and its impact on the Gulf Stream, the Gulf of Maine and the ecosystem
- Synthesis of multi-scale, multi-disciplinary data sets from satellite and in-situ observations with numerical models in different parts of the world ocean
- Recent Changes in Shelfbreak Exchange on the New England Shelf: Process-Oriented Observations of Salinity Maximum Intrusions, Funded by NSF (08/2019--07/2022).
- Ocean circulation and numerical modeling
- Applying mesoscale and finer resolution models for operational synoptic ocean forecasting
- Understanding the multi-scale response of ecosystems to multi-scale climatic forcing using innovative basin-scale modeling and data-model assimilation and synthesis approaches
Gangopadhyay, A., G. Gawarkiewicz, N. Etige, M. Monim and J. Clark (2019).
An Observed Regime Shift in the Formation of Warm Core Rings from the Gulf Stream
Scientific Reports, 9
Shee, A., Sil, S., Gangopadhyay, A., Gawarkiewicz, G., & Ravichandran, M (2019).
Seasonal evolution of oceanic upper layer processes in the northern Bay of Bengal following a single Argo ﬂoat
Geophysical Research Letters, 46
Gawarkiewicz, G., R.E. Todd, W. Zhang, J. Partida, A. Gangopadhyay, M.-U.-H. Monim, P. Fratantoni, A. Malek Mercer, and M. Dent. (2018).
The changing nature of shelf-break exchange revealed by the OOI Pioneer Array
Oceanography, 31(1):, 60–7.
- An operational modeling implementation for the Trinidad-Venezuela region using feature models
- Multiscale forecasting in the western North Atlantic: Sensitivity of model forecast skill to glider data assimilation
- Optimal Planning and Sampling Predictions for Autonomous and Lagrangian Platforms and Sensors in the Northern Arabian Sea
- Secular change and inter-annual variability of the Gulf Stream position, 1993–2013, 70°−55°W