I have 38 years of experience in the field of water resources with specific knowledge of modeling, computer analysis, water hammer, surge, floods, and levee and dam failure. I have published on such topics as modeling, hydraulic transients, surge, flood flows, flood maps, levees and failures, hydraulic structures, canals and channels. I served as expert witness on several cases related to my area of expertise and have worked as specialist consultant world wide on large water resource projects, dams and powerhouses and water supply systems.