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Radlab /
Staff of the Radio Oceanography LaboratoryPierre Flament founded the laboratory in 1988. He is Professor of Oceanography at the University of Hawai'i at Manoa. As principal investigator, he is responsible for defining the research directions of the laboratory, for mentoring graduate students, and for preparing the proposals that fund the laboratory's activities. Johanna Saavedra joined the laboratory in 2024 as a remote sensing technologist. She obtained her M.Sc. at the Universidad Autonoma de Baja California in 2017, where she stayed until 2022 as an HFDR technician. She is responsible for the day-to-day operation and maintenance of the HFDRs in Hawaii. Lindsey Benjamin obtained her Ph.D. in 2022 and continues to assist the laboratory, developing algorithms and software for HFDR. Benedicte Dousset is affiliate researcher at the Hawaii Institute of Geophysics and Planetology, specializing in satellite infrared and radar remote sensing. She managed the University of Hawaii satellite receiving station from 1992 to 2000 and participated in all HFDR deployments since 2002. Since her retirement from UH, she contributes intermittently to the activities of the laboratory. Philip Moravcik has collaborated with the laboratory since 2002. He was responsible for operating 3 radars in the Adriatic in 2002-2004, and has participated in all HFDR deployments on Oahu. Since his retirement from UH, he contributes intermittently to the activities of the laboratory. Louis Marié is with the Laboratoire de Physique de l'Océan at IFREMER in Brest, France. He begun collaborating with radlab in 2008, by independently testing the radars designed at the University of Hawaii. He also developed Python software to control the radars and to implement processing algorithms. Anthony Kirincich is with the Woods Hole Oceanographic Institution in Woods Hole, MA. He supervises HFDR along the New England coastline, and is focused on implementing direction finding algorithms to process HFDR signals. Chien Hwa is with the Institute for Hydrological Sciences of the National Central University in Taoyuan, Taiwan. His group is focused on algorithms for estimating surface wave spectrum and wind. None at present. None at present. Lindsey Benjamin started as a Ph.D. student in 2011. Her M.Sc. thesis was focused on tsunami detection using HFDR (defense presentation). Her Ph.D. dissertation, defended in 2022 (defense presentation), was focused on radar detection of Tropical Instability Vortices. She graduated in 2022, and continues as a staff member of the laboratory (see above). Victoria Futch joined radlab in 2008 as a M.Sc. student detailed from the U.S. Coast Guard. She graduated in 2010 and joined the USCG Academy as an instructor. Her thesis focused on the Lagrangian aspects of oceanic flows, and applications to Search and Rescue problems of interest to the USCG. She continued towards a Ph.D., graduated in 2019, and returned to the Coast Guard Academy as a full-time faculty. Alma Carolina Castillo started as a Ph.D. student in 2011. Her M.Sc. thesis was focused on the low-frequency variability of currents south of Oahu. She defended her Ph.D. dissertation in 2018, and is currently postdoctoral researcher at the University of California San Diego. Charina Lyn Amedo-Repollo started as a Ph.D. student in 2007. Her dissertation is focused on HFDR measurements of the flow through straits and embayments of the Philippines archipelago, where she managed the deployment and operation of six HFDR systems. She defended her Ph.D. in 2016 and is presently senior lecturer at the Marine Sciences Institute of the University of the Philippines Diliman. Xavier Flores Vidal started as a Ph.D. student in 2006 at the Universidad Autonoma de Baja California. In his dissertation, he studied coastal current dynamics in the Gulf of Tehuantepec. He is now tenured faculty at the UABC Instituto de Investigaciones Oceanólogicas. Cedric Chavanne started as a Ph.D. student in 2000. His dissertation, defended in 2007, is focused on HFDR measurements of the internal tide in the Kauai channel. He was responsible for the early software development for HFDR data processing. He is presently professor at the Institut des Sciences de la Mer in Rimouski, Quebec, Canada. Claude (Rick) Lumpkin started as a graduate student in 1991, and joined radlab in 1994 where he worked on his M.Sc. thesis, defended in 1995, and his Ph.D. dissertation, defended in 1998. His work was focused on low frequency currents of the Hawai'i archipelago. With P. Flament, he discovered the Hawai'i Lee Counter Current (HLCC). He is presently senior researcher at NOAA's Atlantic Oceanographic and Meteorological Laboratory in Miami. Sean Kennan started as a graduate student in 1990, and joined radlab in 1994. In his dissertation, defended in 1997, he studied Tropical Instability Vortices (TIV), straddling the equatorial current system. He is presently Program Diretor at the National Science Foundation, Geoscience Directorate, Division of Ocean Sciences, Physical Oceanography Program. Ian Fernandez joined radlab in 2010 as a graduate student at the University of the Philippines, and oversaw the installation and operation of long-range High Frequency Doppler Radars (HFDR) on Luzon. Upon graduation in 2014, he moved to the University of Hawaii as electronic technician, responsible for the day-to-day operation and maintenance of the HFDRs in Hawaii. In 2023, he moved to Woods Hole Oceanographic Institution. Mael Flament joined radlab in 2002 as volunteer, and in 2007 as undergraduate assistant. He participated in the deployment of HFDR systems in the Adriatic sea, where he was responsible for boat calibrations. He graduated with a B.Sc. in Physics at the University of Hawai'i in 2016, and with a M.Sc. in Physics Instrumentation at Stony Brook University in 2019. He subsequently co-founded the quantum optics startup Qunnect. Ken Constantine joined the laboratory in 1989 as Marine Technician. He was responsible for all seagoing instrumentation of the laboratory until 1993. He returned to radlab in 2008 and was responsible for the deployment of HFDRs on Oahu until he retired in 2020. David Harris joined radlab in 2008 as Senior Electronic Engineer. He assisted with the design of the HFDR electronics built at the laboratory until he retired in 2018. Paul Lethaby joined radlab in 2011 as a Physical Oceanography Researcher. He was responsible for the day-to-day operation of the HF Radio systems on Oahu, data processing and quality control until 2014. He was also responsible for deploying current-meter moorings in the Philippines seas. Ryan Hlivak joined radlab in 2015 for the deployment of the Kapolei (Chevron) radar site and remained until 2017 as a Laboratory Technical Assistant for HFDR operations. He was responsible for preparing drifting buoys used to calibrate HF radar velocities. Former M.Sc. students Jake Cass joined radlab in 2009 as a M.Sc. student detailed from the U.S. Coast Guard. His thesis, defended in 2011, is focused on currents south of Oahu from HFDR. He graduated in 2011 and subsequently was assigned to the USCG's International Ice Patrol. Tyson Hilmer started as a M.Sc. student in 2007. His thesis, defended in 2010, is focused on HFDR measurements of wind and waves. He was responsible for calibrating the South Oahu arrays using shipborne transmitters. Dave Johnson started as a M.Sc. student in 1996, and used synthetic aperture radar images to study the California Current. He defended his thesis in 2003. Michael Sawyer joined radlab in 1990 as an undergraduate trainee from NCSU, and as a M.Sc. student in 1992. In his thesis, defended in 1996, he studied the North Equatorial Front. Diana Wenzel started her M.Sc. in 1989 while working for the U.S. Navy. In her thesis, defended in 1992, she studied diurnal sea surface warming in the lee of Hawaii using satellite images. Kathy Ozimek started in 1989 as a M.Sc. student detailed from the U.S. Navy. In her thesis, defended in 1991, she combined hydrographic, ADCP and altimetric data to study the Agulhas Retroflection. |