Oceanography The Official Magazine of
The Oceanography Society

Volume 32 | Number 4 | December 2019

Special Issue on FLEAT: Flow Encountering Abrupt Topography

On the Cover: The microstructure glider used for turbulent wake studies is in the foreground, with Pat Colin aboard the Coral Reef Research Foundation’s catamaran Kemedukl in the background. Photo credit: Steve Lindfield, CRRF. Bottom left: Mika Siegelman (University of Hawai‘i at Mānoa) cradling a conductivity and temperature recorder that is covered with gooseneck barnacles. Photo credit: Kristin Zeiden, Scripps Institution of Oceanography. Middle: Shoreline of Palau. Photo credit: Hans C. Graber, University of Miami. Right: Simulation of the eddying currents surrounding the islands of the Republic of Palau, showing salinity (color) and velocity at 400 m resolution (see Harper et al., 2019, in this issue for model details). Image credit: Harper Simmons, University of Alaska Fairbanks
Cover PDF
Volume 32 Issue 04

INTRODUCTION TO THE SPECIAL ISSUE • FLEAT: A Multiscale Observational and Modeling Program to Understand How Topography Affects Flows in the Western North Pacific
By T.M. Shaun Johnston, Martha C. Schönau, Terri Paluszkiewicz, Jennifer A. MacKinnon, Brian K. Arbic, Patrick L. Colin, Matthew H. Alford, Magdalena Andres, Luca Centurioni, Hans C. Graber, Karl R. Helfrich, Verena Hormann, Pierre F.J. Lermusiaux, Ruth C. Musgrave, Brian S. Powell, Bo Qiu, Daniel L. Rudnick, Harper L. Simmons, Louis St. Laurent, Eric J. Terrill, David S. Trossman, Gunnar Voet, Hemantha W. Wijesekera, and Kristin L. Zeiden

Nonlinear Short-Term Upper Ocean Circulation Variability in the Tropical Western Pacific
By Bo Qiu, Shuiming Chen, Brian S. Powell, Patrick L. Colin, Daniel L. Rudnick, and Martha C. Schönau

The End of an El Niño: A View from Palau
By Martha C. Schönau, Hemantha W. Wijesekera, William J. Teague, Patrick L. Colin, Ganesh Gopalakrishnan, Daniel L. Rudnick, Bruce D. Cornuelle, Zachariah R. Hallock, and David W. Wang

Eddies, Topography, and the Abyssal Flow by the Kyushu-Palau Ridge Near Velasco Reef
By Magdalena Andres, Mika Siegelman, Verena Hormann, Ruth C. Musgrave, Sophia T. Merrifield, Daniel L. Rudnick, Mark A. Merrifield, Matthew H. Alford, Gunnar Voet, Hemantha W. Wijesekera, Jennifer A. MacKinnon, Luca Centurioni, Jonathan D. Nash, and Eric J. Terrill

Typhoon-Forced Waves Around a Western Pacific Island Nation
By Sophia T. Merrifield, Travis A. Schramek, Sean Celona, Ana Beatriz Villas Bôas, Patrick L. Colin, and Eric J. Terrill

Understanding Vorticity Caused by Flow Passing an Island
By Daniel L. Rudnick, Kristin L. Zeiden, Celia Y. Ou, T.M. Shaun Johnston, Jennifer A. MacKinnon, Matthew H. Alford, and Gunnar Voet

Observations of Near-Inertial Surface Currents at Palau
By Mika Siegelman, Mark A. Merrifield, Eric Firing, Jennifer A. MacKinnon, Matthew H. Alford, Gunnar Voet, Hemantha W. Wijesekera, Travis A. Schramek, Kristin L. Zeiden, and Eric J. Terrill

Dynamical Downscaling of Equatorial Flow Response to Palau
By Harper L. Simmons, Brian S. Powell, Sophia T. Merrifield, Sarah E. Zedler, and Patrick L. Colin

Island Wakes Observed from High-Frequency Current Mapping Radar
By Sophia T. Merrifield, Patrick L. Colin, Thomas Cook, Carlos Garcia-Moreno, Jennifer A. MacKinnon, Mark Otero, Travis A. Schramek, Mika Siegelman, Harper L. Simmons, and Eric J. Terrill

Turbulence and Vorticity in the Wake of Palau
By Louis St. Laurent, Takashi Ijichi, Sophia T. Merrifield, Justin Shapiro, and Harper L. Simmons

Energy and Momentum Lost to Wake Eddies and Lee Waves Generated by the North Equatorial Current and Tidal Flows at Peleliu, Palau
By T.M. Shaun Johnston, Jennifer A. MacKinnon, Patrick L. Colin, Patrick J. Haley Jr., Pierre F.J. Lermusiaux, Andrew J. Lucas, Mark A. Merrifield, Sophia T. Merrifield, Chris Mirabito, Jonathan D. Nash, Celia Y. Ou, Mika Siegelman, Eric J. Terrill, and Amy F. Waterhouse

Palau’s Effects on Regional-Scale Ocean Circulation
By Ganesh Gopalakrishnan and Bruce D. Cornuelle

Energy Transfer in the Western Tropical Pacific
By Sarah E. Zedler, Brian S. Powell, Bo Qiu, and Daniel L. Rudnick

Connecting Process Models of Topographic Wave Drag to Global Eddying General Circulation Models
By Brian K. Arbic, Oliver B. Fringer, Jody M. Klymak, Frederick T. Mayer, David S. Trossman, and Peiyun Zhu

Tropical Western Pacific Thermal Structure and its Relationship to Ocean Surface Variables: A Numerical State Estimate and Forereef Temperature Records
By Travis A. Schramek, Bruce D. Cornuelle, Ganesh Gopalakrishnan, Patrick L. Colin, Sonia J. Rowley, Mark A. Merrifield, and Eric J. Terrill

Ngaraard Pinnacle, Palau: An Undersea “Island” in the Flow
By Patrick L. Colin, T.M. Shaun Johnston, Jennifer A. MacKinnon, Celia Y. Ou, Daniel L. Rudnick, Eric J. Terrill, Steven J. Lindfield, and Heidi Batchelor

Radar Observations of Ocean Surface Features Resulting from Underwater Topography Changes
By Lisa Nyman, Björn Lund, Hans C. Graber, Roland Romeiser, and Jochen Horstmann

Flow-Topography Interactions in the Samoan Passage
By James B. Girton, John B. Mickett, ZhongXiang Zhao, Matthew H. Alford, Gunnar Voet, Jesse M. Cusack, Glenn S. Carter, Kelly A. Pearson-Potts, Larry J. Pratt, Shuwen Tan, and Jody M. Klymak

A Spatial Geography of Abyssal Turbulent Mixing in the Samoan Passage
By Glenn S. Carter, Gunnar Voet, Matthew H. Alford, James B. Girton, John B. Mickett, Jody M. Klymak, Larry J. Pratt, Kelly A. Pearson-Potts, Jesse M. Cusack, and Shuwen Tan

Special Issue Guest Editors

T.M. Shaun Johnston, Scripps Institution of Oceanography
Terri Paluszkiewicz, Octopus Ocean Consulting LLC
Martha Schönau, Applied Ocean Sciences
Louis St. Laurent, University of Washington