**Ocean Wave Dissipation and Energy Balance (WAVE-DB): Toward Reliable Spectra and First Breaking Statistics**

** Lead PI:** Dr. Fabrice Ardhuin, Service Hydrographique et Oceanographique de la Marine (SHOM)

The proposed work is aimed at improving wave prediction models by improving wave dissipation parameterizations and field observations. Emphasis will be given to swell dissipation due to air-sea interaction and new field measurements, in conjunction with other research efforts at the PI’s institute.

**Number of Years:** 4

**Start Year: **2009

**End Year:** 2014

**Partners:**

- Georgia Institute of Technology
- National Oceanic and Atmospheric Administration
- Protechno
- Laboratoire National d’Hydraulique et Environnement (LNHE) of Electricité de France (EDF)

FY 2010 PI Report

FY 2011 PI Report

FY 2012 PI Report

FY 2014 PI Report

**Observation-based Dissipation and Input Terms for Spectral Wave Models, with End-user Testing**

**Lead PI:** Dr. Alexander Babanin, Swinburne University of Technology

The proposed reserach is aimed at improving wave prediction models by taking the advantage of new development in dissipation and input terms in the PI’s institution and collaborations with three end user groups in the U.S. New source terms for breaking dissipation and energy input based on field measurements in Lake George will be refined, implemented and tested by a partnership among a university (Australia) and three federal laboratories.

**Number of Years:** 4

**Start Year:** 2009

**End Year:** 2013

**Partners:**

- Naval Research Laboratory
- U.S. Army Corps of Engineers
- National Oceanic and Atmospheric Administration

FY 2010 PI Report

FY 2011 PI Report

FY 2012 PI Report

FY 2013 PI Report

**Refined Source Terms in WAVEWATCH III with Wave Breaking and Sea Spray Forecasts**

**Lead PI:** Dr. Michael Banner, University of South Wales

This is a comprehensive proposal to look at source term physics, air-sea interactions and extension into shallow water.

**Number of Years:** 4

**Start Year: **2009

**End Year:** 2014

**Partners:**

- RPS MetOcean
- National Oceanic and Atmospheric Administration

FY 2010 PI Report

FY 2011 PI Report

FY 2012 PI Report

FY 2013 PI Report

FY 2014 PI Report

**Modeling Wind Wave Evolution from Deep to Shallow Water: Nonlinearity and Dissipation**

**Lead PI:** Dr. Tim Janssen, San Francisco State University

The proposal is aimed at improving the nonlinearity and dissipation source terms in wave prediction models.

**Number of Years:** 4

**Start Year: **2009

**End Year:** 2012

**Partners:**

- Naval Postgraduate School
- Delft University of Technology

FY 2010 PI Report

FY 2011 PI Report

FY 2012 PI Report

**Nonlinear and Dissipation Characteristics of Ocean Surface Waves in Estuarine Environments**

**Lead PI: ** Dr. James Kaihutu, Texas A&M University

The authors intend to study the propagation of surface waves in estuarine environments, particularly the dissipation of surface waves over mud and vegetation.

**Number of Years:** 4

**Start Year: **2009

**End Year:** 2014

**Partners:**

- University of Florida
- U.S. Army Corps of Engineers
- National Oceanic and Atmospheric Administration

FY 2010 PI Report

FY 2011 PI Report

FY 2012 PI Report

FY 2014 PI Report

**TSA-A Two Scale Approximation for Wind-generated Ocean Surface Waves**

**Lead PI: **Dr. William Perrie, Bedford Institute of Oceanography

The goals of this proposal are to provide an accurate, efficient computational model of the 4-wave interactions, using the two-scale approximation (TSA), that can be used in operational models of coastal, regional, and ocean basins, and provide a seamless transition from deep water to just outside of the surf zone.

**Number of Years:** 4

**Start Year: **2009

**End Year:** 2013

**Partners:**

- U.S. Army Corps of Engineers
- University of Torino
- Waves and Solitons, LLC
- University of Arizona
- Shirshov Institute Oceanology
- Landau Institute for Theoretical Physics

FY 2010 PI Report

FY 2011 PI Report

FY 2012 PI Report

FY 2013 PI Report