Tarang Khangaonkar

Technical Manager of the Integrated Coastal Ocean Modeling Group at the PNNL Marine Sciences Lab
Contact Information
Member of Graduate Faculty in: 
Water Resources Engineering
Water Resources Science
Willing to serve on Graduate Committees for: 
Detailed Research Interest : 



coastal processes

Current Research Interests: 
  • Coastal circulation and hydrodynamic modeling
  • Effluent mixing and fate and transport modeling
  • Water quality and biogeochemical processes modeling
  • Toxics fate and transport modeling
  • Climate change and sea level rise
  • Ocean acidification
  • Sediment transport and littoral processes
  • Integrated modeling of riverine, floodplain, estuarine, and coastal watersheds
Other Information: 

Dr. Khangaonkar is the Technical Manager of the Integrated Coastal Ocean Modeling Group at the PNNL Marine Sciences Laboratory, Battelle. He provides senior leadership to PNNL’s activities in numerical modeling studies related to coastal ocean hydrodynamics, water quality, sediment transport, and fate and transport analysis. He has 22 years of experience with various types of models capable of circulation, toxics fate and transport, and water quality kinetics. He has been involved with a number of water quality management studies providing modeling of temperature, calculations of dissolved oxygen (DO) depletions and sediment deposition, evaluating long-term effluent flushing and pH buffering, and performing temperature and diffuser design optimization. In response to a growing demand by the Puget Sound community for a practical oceanographic modeling tool, Dr. Khangaonkar and his team have developed a high resolution 3-D finite volume hydrodynamic and transport model. In collaboration with U.S. EPA and Washington State Department of Ecology, Dr. Khangaonkar is overseeing the development of a comprehensive biogeochemical component for the Salish Sea region of the Pacific Northwest as part of ecosystem modeling in connection with nutrient pollution management, sea level rise, climate change, and ocean acidification. The tool originally developed to assist with nearshore restoration planning and design, and water quality management is also being considered for emergency response, analysis of fish migration pathways and for assessment of climate change effects. Dr. Khangaonkar and his team are working towards an Operational Forecast System for Puget Sound and the Pacific Northwest coastal waters.