Karl Helfrich
American physical oceanographer
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Philosophy
Karl Helfrich's Degrees
- Masters Oceanography University of Washington
- Bachelors Physics Stanford University
Why Is Karl Helfrich Influential?
(Suggest an Edit or Addition)According to Wikipedia, Karl R. Helfrich is an American physical oceanographer. Helfrich earned his bachelor's of science degree in engineering from Duke University in 1979. He completed a master's of science degree and doctorate from the Massachusetts Institute of Technology in 1982 and 1985, respectively. He is a senior scientist at Woods Hole Oceanographic Institution, serving as J. S. Johnson Chair as Education Coordinator from 2001 to 2006, and was H. B. Bigelow Chair for Excellence in Oceanography between 2014 and 2017. In 2001, Helfrich was elected a fellow of the American Physical Society "[f]or laboratory, analytical, numerical, and observational contributions to understanding waves, hydraulic control, abyssal ocean circulation, thermals, plumes, viscous fingering and other areas of geophysical fluid dynamics."
Karl Helfrich's Published Works
Published Works
- Long Nonlinear Internal Waves (2006) (637)
- The formation and fate of internal waves in the South China Sea (2015) (387)
- Internal solitary wave breaking and run-up on a uniform slope (1992) (229)
- On long nonlinear internal waves over slope-shelf topography (1986) (169)
- Transcritical two-layer flow over topography (1987) (130)
- Buoyant gravity currents along a sloping bottom in a rotating fluid (2002) (130)
- On interfacial solitary waves over slowly varying topography (1984) (116)
- Time-Dependent Two-Layer Hydraulic Exchange Flows (1995) (114)
- Circulation around islands and ridges (1997) (104)
- Finite-amplitude evolution of two-layer geostrophic vortices (1988) (96)
- Experiments on baroclinic vortex shedding from hydrothermal plumes (1991) (88)
- Nonlinear Disintegration of the Internal Tide (2008) (87)
- Decay and return of internal solitary waves with rotation (2007) (84)
- Flow localization in fissure eruptions (1999) (82)
- Evaporation from heated water bodies: Predicting combined forced plus free convection (1990) (82)
- Long‐time Solutions of the Ostrovsky Equation (2008) (78)
- Instability of flow with temperature‐dependent viscosity: A model of magma dynamics (1991) (73)
- Larval dispersal via entrainment into hydrothermal vent plumes (1994) (68)
- Combined Effect of Rotation and Topography on Shoaling Oceanic Internal Solitary Waves (2014) (62)
- The effect of rotation on internal solitary waves (2012) (60)
- Testing the physical oceanographic implications of the suggested sudden Black Sea infill 8400 years ago (2004) (55)
- Gravity currents and internal waves in a stratified fluid (2006) (53)
- Accumulation of particles in propagating fronts (2003) (47)
- Nonlinear Rossby adjustment in a channel (1998) (47)
- Chaotic Transport of Mass and Potential Vorticity for an Island Recirculation (2002) (44)
- Experimental study of the effect of rotation on nonlinear internal waves (2013) (43)
- Wave transport of deep mantle material (1988) (42)
- The Reduced Ostrovsky Equation: Integrability and Breaking (2012) (39)
- Thermals with background rotation and stratification (1994) (38)
- Synthetic Aperture Radar observations of resonantly generated internal solitary waves at Race Point Channel (Cape Cod) (2008) (37)
- Swimming behavior and velocities of barnacle cyprids in a downwelling flume (2011) (37)
- A model for large-amplitude internal solitary waves with trapped cores (2009) (35)
- Rotating Hydraulics and Upstream Basin Circulation (2003) (34)
- Solitary waves on conduits of buoyant fluid in a more viscous fluid (1990) (34)
- A general description of a gravity current front propagating in a two-layer stratified fluid (2012) (34)
- The Korteweg‐deVries equation from laboratory conduit and magma migration equations (1986) (31)
- Hydraulic adjustment to an obstacle in a rotating channel (2000) (31)
- Upward swimming of competent oyster larvae Crassostrea virginica persists in highly turbulent flow as detected by PIV flow subtraction (2013) (31)
- Thermo-viscous fingering of flow in a thin gap: a model of magma flow in dikes and fissures (1995) (31)
- Isolating the hydrodynamic triggers of the dive response in eastern oyster larvae (2015) (29)
- Time-dependent isolated anomalies in zonal flows (1993) (24)
- Laboratory experiments and simulations for solitary internal waves with trapped cores (2014) (21)
- Large‐scale, realistic laboratory modeling of M2 internal tide generation at the Luzon Strait (2013) (21)
- A Laboratory Model of Exchange and Mixing between Western Boundary Layers and Subbasin Recirculation Gyres (2002) (20)
- Mixing and entrainment in hydraulically driven stratified sill flows (2004) (20)
- Large-amplitude coherent anomalies in baroclinic zonal flows (1995) (20)
- Rapid gravitational adjustment of horizontal shear flows (2013) (20)
- A transverse hydraulic jump in a model of the Faroe Bank Channel outflow (2007) (16)
- Internal hydraulic jumps in two-layer flows with upstream shear (2016) (16)
- Issues and progress in the prediction of ocean submesoscale features and internal waves (2014) (15)
- Hydrothermal plumes: a review of flow and fluxes (1995) (15)
- A model for internal bores in continuous stratification (2014) (15)
- On the stability of ocean overflows (2008) (13)
- Evaluation of models for predicting evaporative water loss in cooling impoundments (1982) (12)
- Multiscale multiphysics data-informed modeling for three-dimensional ocean acoustic simulation and prediction. (2019) (11)
- Estimating the predictability of an oceanic time series using linear and nonlinear methods (2004) (11)
- Review of Dispersive and Resonant Effects in Internal Wave Propagation (1990) (11)
- Whales and waves: Humpback whale foraging response and the shoaling of internal waves at Stellwagen Bank (2015) (11)
- Propagation of a finite-amplitude potential vorticity front along the wall of a stratified fluid (2002) (10)
- Preface Large amplitude internal waves in the coastal ocean (2011) (10)
- Mean hydrographic and velocity sections near Pipe Organ Vent at Juan de Fuca Ridge (1998) (9)
- FLEAT: A Multiscale Observational and Modeling Program to Understand How Topography Affects Flows in the Western North Pacific (2019) (9)
- Generalized Conditions for Hydraulic Criticality of Oceanic Overflows (2005) (8)
- Corrigendum: The formation and fate of internal waves in the South China Sea (2015) (8)
- Light stimulates swimming behavior of larval eastern oysters Crassostrea virginica in turbulent flow (2017) (7)
- Optimal transient growth in thin-interface internal solitary waves (2017) (7)
- Nonlinear adjustment of a localized layer of buoyant, uniform potential vorticity fluid against a vertical wall (2006) (7)
- Current Research Problems (1990) (7)
- The Shadowed Island (1999) (6)
- Oceanic Hydrothermal Circulation: Mesoscale and Basin‐Scale Flow (2013) (6)
- Gravity currents from a dam-break in a rotating channel (2005) (6)
- Vertical and temporal vorticity observations at Juan de Fuca Ridge: Hydrothermal signatures (1998) (6)
- Strongly nonlinear, simple internal waves in continuously-stratified, shallow fluids (2011) (6)
- The skirted island : the effect of topography on the flow around planetary scale islands (2009) (6)
- Mixing at the head of a canyon: A laboratory investigation of fluid exchanges in a rotating, stratified basin (2006) (5)
- Continuously stratified nonlinear low-mode internal tides (2008) (4)
- Internal hydraulic jumps in two-layer flows with increasing upstream shear (2020) (4)
- Conduit solitary waves in a visco-elastic medium (1992) (4)
- Some New Aspects of the Joint Effect of Rotation and Topography on Internal Solitary Waves (2019) (4)
- Response of small sharks to nonlinear internal waves (2019) (4)
- Circulation around a thin zonal island (2001) (2)
- Responding to the signal and the noise: behavior of planktonic gastropod larvae in turbulence. (2022) (2)
- Mathematical Predictive Models for Cooling Ponds and Lakes. Part B. User's manual and applications of MITEMP. Part C. A transient analytical model for shallow cooling ponds. [MITEMP computer code] (1979) (2)
- Rapid Gravitational Adjustment of a Horizontal Shear Layer (2007) (2)
- Generation and Propagation of Nonlinear Internal Waves in the South China Sea (2006) (1)
- Dispersion From Hydrothermal Vents (2019) (1)
- The Luzon Strait experiment (2011) (1)
- On long nonlinear internal waves over bottom topography (1984) (1)
- Large-scale, realistic laboratory modeling of M[subscript 2] internal tide generation at the Luzon Strait (2013) (1)
- Modeling internal solitary wave development at the head of a submarine canyon (2016) (1)
- Experiments on Baroclinic Eddy Evolution and Stability in Rotating Continuously Stratified Systems (1990) (1)
- Analysis of evaporation data from heated ponds: Final report (1987) (1)
- 2009 program of studies : nonlinear waves (2010) (1)
- Rotating hydraulic adjustment in a parabolic channel (2002) (0)
- Introduction to the Special Issue: Flow Encountering Abrupt Topography (Fleat) A Multiscale Observational and Modeling Program to Understand How Topography Affects Flows in the Western North Pacific (2019) (0)
- Effects of rotation and topography on internal solitary waves governed by the rotating Gardner equation (2022) (0)
- Simultaneous experimental measurements of velocity and density in solitary internal waves with trapped cores (2013) (0)
- Hydraulic jumps with upstream shear (2013) (0)
- Turbulent Mixing in Gravity Currents with Transverse Shear (2010) (0)
- Tilting Shear Layers in Coastal Flows (2015) (0)
- Twenty-first century outer continental shelf and shelfbreak acoustics research: Methods, tools, and progress (2022) (0)
- Transient Growth in Internal Solitary Waves (2015) (0)
- Integrated Modeling and Analysis of Physical Oceanographic and Acoustic Processes (2014) (0)
- Resonant forcing of nonlinear internal waves by a density current released into a two-layer fluid (2009) (0)
- Determining the Stratification of Exchange Flows in Sea Straits (2001) (0)
- Effects of Rotation on Internal Solitary Waves (2010) (0)
- Reorientation and Swimming Stability in Sea Urchin Larvae (2016) (0)
- GFD 2006 Project Glancing Interactions of Internal Solitary Waves (2007) (0)
- Internal Tide Generation in a large-scale Laboratory Experimental Study of the Luzon Strait. (2012) (0)
- Circulation around a "skirted" island (2009) (0)
- Ageostrophic instability and mixing in a dense overflow (2016) (0)
- Interdisciplinary Research and Training at the Geophysical Fluid Dynamics Program (2011) (0)
- Internal hydraulic jumps with large upstream shear (2015) (0)
- Breaking of the internal tide (2013) (0)
- Nonlinear Rossby Adjustment in a Channel and Rotating Gravity Currents (2003) (0)
- Estimating predictability of an ocean time series using linear and nonlinear methods (2003) (0)
- Solitary waves on two-dimensional slab conduits of buoyant fluid in a more viscous fluid (1995) (0)
- Internal hydraulic jumps with upstream shear and topography (2016) (0)
- The internal wave prediction component of the Integrated Ocean Dynamics and Acoustics Project (2017) (0)
- The Disintegration (or not) of the Nonlinear Internal Tide (2005) (0)
- Modeling the nonlinear internal wave field for coastal acoustics (2013) (0)
- Circulation in hydraulically drained rotating basins (2000) (0)
- The integrated ocean dynamics and acoustics project (2016) (0)
- The Physics and Forecasting of Separation Phenomena in the Philippine Archipelago (2007) (0)
- Rossby adjustment of a finite-length buoyant patch along a vertical wall (2004) (0)
- Using Hydraulic Theory to Monitor Dense Overflows in a Parabolic Channel (2022) (0)
- Ocean Circulation in the Presence of Planetary-Scale Islands (1997) (0)
- Theory and Modeling of Internal Wave Generation in Straits (2015) (0)
- Time-Dependent Stratified Flow Over Topography: Waves and Rotating Hydraulics (1998) (0)
- Effects of Rotation and Topography on Internal Solitary Waves Governed by the Rotating-Gardner Equation (2022) (0)
- Transient and global instabilities of internal solitary waves (2016) (0)
- Estimating predictability using nonlinear time series analysis (2001) (0)
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