During the past 10 years, algorithms for extracting ocean information from marine radar image sequences have reached considerable maturity. This data has shown utility for the sensing of both ocean surface processes as well as certain information from within the water column. Applications include directional wave spectra, ocean winds, and nearshore bathymetry and current mapping. Our recent work has concentrated on the sensing of rip currents in the nearshore zone, the intratidal and intertidal dynamics of internal hydraulic jumps, and the tracking of tidal intrusion fronts at the mouths of estuaries. This talk will describe the existing methodologies and demonstrate their use, as well as present the latest developments from our long term observing stations, our progress in the numerical modeling of radar imaging, and describe our upcoming field campaigns. Finally, we will discuss areas of needed future work.
Merrick Haller, Ph.D., M.ASCE, Oregon State University
Dr. Haller earned his PhD in Civil Engineering from the University of Delaware in 1999. His graduate work focused on experimental measurements and the modeling of rip current instabilities. He has been on the faculty in the Coastal & Ocean Engineering program within School of Civil & Construction Engineering at Oregon State University (OSU) since 2001. Before coming to OSU in 2001, he spent two years in a research position in the remote sensing industry. Dr. Haller’s group conducts research involving the remote sensing of waves and currents in nearshore and estuarine environments. Processes of particular interest include surf zone rip currents, internal hydraulic jumps, and tidal intrusion fronts near the mouths of estuaries. His group maintains several operational, radar-based, wave observation stations and conducts frequent field studies as well. He is a firm believer in the use of remote sensing coupled with numerical modeling and in situ observations to establish a synoptic understanding of hydrodynamic processes.
Recent advances in computational algorithms coupled with exponentially growing computing power pave the way for developing a powerful simulation-based engineering science framework for tackling a broad range of real-life hydraulic engineering flows. Multi-physics simulations taking into account complex waterway bathymetry, energetic coherent structures, turbulence/sediment interactions and morphodynamics, free-surface effects and flow structure interaction phenomena are now well within reach and are beginning to impact engineering practice. I will review such progress and offer specific examples highlighting the enormous potential of simulation-based engineering science to supplement and dramatically augment the insights that can be gained from physical experiments. I will also discuss major computational challenges that lie ahead but also underscore the enormous opportunities to take advantage of advanced algorithms, powerful supercomputers and big data to tackle societal challenges in restoration of aquatic environments, sustainable mitigation of the impacts of global environmental change, and development of efficient and environmentally compatible renewable energy systems.
2017 Winner - Fotis Satiropoulos, Ph.D., M.ASCE, F.APS, Stony Brook University
Join us for the much anticipated 2017 Hunter Rouse Hydraulic Engineering Award Lecture, hydraulic engineering’s premier lectureship endowed through personal contributions by engineers and engineering firms throughout the world, while enjoying a scrumptious lunch and networking with colleagues.