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Marine Sciences Division

Wen Long

Wen Long

Marine Sciences Laboratory
Pacific Northwest National Laboratory
1529 West Sequim Bay Road
Sequim, Washington 98382


Wen Long grew up in Wangcheng District, suburb of Changsha City, Hunan Province, China. Northern Hunan is China’s heartland for farming and Wen, at his youth, was essentially growing rice year after year with his parents, during which he developed interests in studying the nature. In 1993, Wen was selected to go to Tianjin University for college majoring mechanics, where he also took electrical engineering as a minor, which helped him understand how computers work. Prof. Jianhua Tao introduced Wen Long into the field of hydrodynamics in 1995. Since then Wen has been working on applications of computational fluid mechanics with a focus on hydrodynamics. In 2000, Wen was admitted to The University of Delaware Center for Applied Coastal Research to study coastal and ocean engineering with a dissertation on wave and sediment transport under the supervision of Dr. James T. Kirby. During the 6 years at UD, Wen Long produced a suite of widely used water wave and sediment transport models, which are open source and bundled in CoastalSpace available on Source Forge. After graduation in 2006, Wen started applying his skills and knowledge in coastal ecological modeling. He was a postdoctoral fellow and later assistant research scientist at The University of Maryland Center for Environmental Science (UMCES), where he developed the Chesapeake Bay HAB prediction system, the community Chesapeake Bay Regional Ocean Modeling System (ChesROMS, Lead PI: C. Brown, R. Hood). Recently, Wen has also developed the following models for the Chesapeake Bay region: MACROMS--Mid Atlantic Coast Regional Ocean Modeling System; ChopROMS--Choptank River Regional Ocean Modeling System. These models are being used for studying blue crab larvae transport and oyster larvae transport supported by MD Sea Grant and US Army Corps. of Engineering (Co-PI with E. North). Wen Long is currently (2012) working on FVCOM modeling of the Puget Sound watershed integrated with the well celebrated CE-QUAL-ICM model. Wen Long continues his research collaboration with Chesapeake research community through an adjunct professor position at UMCES.

Research Interests

  • Nearshore Wave Current Modeling; Coastal/Estuarine/River Water Quality Modeling
  • Biogeochemical Cycles; Sediment Transport Modeling; Computational Hydrodynamics
  • Environmental Fluid Mechanics

Education and Credentials

  • 1997 - B.E. Engineering Mechanics, Tianjin University, China
  • 1997 - B.E. Electrical Engineering, Tianjin University, China
  • 2000 - M.E. Fluid Mechanics, Tianjin University, China; "Nonlinear Dispersive Shallow Water Wave Model and Its Applications in Engineering", Advisor: Jianhua Tao
  • 2006 - Ph. D. Civil Engineering, University of Delaware; "Boussinesq Modeling of Waves, Currents and Sediment Transport", Advisor: James T. Kirby

Affiliations and Professional Service

  • Adjunct Professor, Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD

Awards and Recognitions

  • 2012- Session Co-Lead, General Modeling Aspects, Chesapeake Modeling Symposium, May 21-22
  • 2011- Featured modeler, Chesapeake Community Modeling Program
  • 2011- Invited participant, Chesapeake Bay Eco Forecasting Workshop II, July 5, 6
  • 2011- Organizing Committee Member, CCMP Hydrodynamic Modeling Workshop, June 9-10
  • 2010- Invited speaker, Chesapeake Modeling Symposium 2010
  • 2008- Invited speaker, Chesapeake Modeling Symposium 2008

PNNL Publications


  • Khangaonkar TP, W Long, and W Xu. 2017. "Assessment of Circulation and Inter-Basin Transport in the Salish Sea including Johnstone Strait and Discovery Islands Pathways." Ocean Modelling 109:11-32.  doi:10.1016/j.ocemod.2016.11.004


  • Khangaonkar T, W Long, B Sackman, T Mohamedali, and AF Hamlet. 2016. "Sensitivity of Circulation in the Skagit River Estuary to Sea Level Rise and Future Flows." Northwest Science 90(1):94-118.  doi:10.3955/046.090.0108
  • Long W, KW Jung, Z Yang, AE Copping, and Z Deng. 2016. "Coupled Modeling of Hydrodynamics and Sound in Coastal Ocean for Renewable Ocean Energy Development." Marine Technology Society Journal 50(2):27-36.  doi:10.4031/MTSJ.50.2.6


  • Wang T, T Khangaonkar, W Long, and GA Gill. 2014. "Development of a Kelp-type Structure Module in a Coastal Ocean Model to Assess the Hydrodynamic Impact of Seawater Uranium Extraction Technology." Journal of Marine Science and Engineering 2(1):81-92.  doi:10.3390/jmse2010081
  • Jacobs JM, M Rhodes, CW Brown, RR Hood, A Leight, W Long, and R Wood. 2014. "Modeling and forecasting the distribution of Vibrio vulnificus in Chesapeake Bay." Journal of Applied Microbiology 117(5):1312-1327.  doi:10.1111/jam.12624


  • Brown CW, RR Hood, W Long, JM Jacobs, DL Ramers, C Wazniak, JD Wiggert, R Wood, and J Xu. 2013. "Ecological Forecasting in Chesapeake Bay: Using a Mechanistic-Empirical Modelling Approach." Journal of Marine Systems 125:113-125.  doi:10.1016/j.jmarsys.2012.12.007


  • Khangaonkar T, BS Sackmann, W Long, T Mohamedali, and M Roberts. 2012. Puget Sound Dissolved Oxygen Modeling Study: Development of an Intermediate Scale Water Quality ModelPNNL-20384 Rev 1, Pacific Northwest National Laboratory, Richland, WA. 
  • Khangaonkar T, BS Sackmann, W Long, T Mohamedali, and M Roberts. 2012. "Simulation of annual biogeochemical cycles of nutrient balance, phytoplankton bloom(s), and DO in Puget Sound using an unstructured grid model ." Ocean Dynamics 62(9):1353-1379.  doi:10.1007/s10236-012-0562-4

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Marine Sciences Laboratory
1529 W. Sequim Bay Road
Sequim, WA 98382
Phone: (360) 683-4151
Fax: (360) 681-3699