Journal of Physical Oceanography: Recent submissions
Now showing items 341-360 of 8177
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New Insights on the Formation and Breaking Mechanism of Convective Cyclonic Cones in the South Adriatic Pit during Winter 2018
(American Meteorological Society, 2022)The deepwater formation in the northern part of the South Adriatic Pit (Mediterranean Sea) is investigated using a unique oceanographic dataset. In situ data collected by a glider along the Bari–Dubrovnik transect captured ... -
Two-Dimensional Wavenumber Spectra on the Horizontal Submesoscale and Vertical Finescale
(American Meteorological Society, 2022)Horizontal and vertical wavenumbers ( -
Nonlinear Dynamics of a Hysteresis Western Boundary Current Perturbed by a Mesoscale Eddy at a Gap with an Island
(American Meteorological Society, 2022)We study a hysteresis western boundary current (WBC) flowing across a gap impinged by a mesoscale eddy, with an island of variable meridional size in the gap, using a 1.5-layer ocean model. The hysteresis curves suggest ... -
Rain Impacts on the Surface Atmosphere and Upper Ocean in the Central Equatorial Pacific
(American Meteorological Society, 2022)The impacts of rainy days (>24 mm) on the physics of the surface atmosphere and upper ocean are characterized in the central Pacific Ocean (140°–170°W) on the equator, where deep-cycle turbulence substantially influences ... -
Parametric Subharmonic Instability of Diurnal Internal Tides in the Abyssal South China Sea
(American Meteorological Society, 2022)Internal waves close to the seafloor of abyssal oceans are the key energy suppliers driving near-bottom mixing and the upwelling branches of meridional overturning circulation, but their spatiotemporal variability and ... -
Wind Drift in a Homogeneous Equilibrium Sea
(American Meteorological Society, 2022)A simple dynamical model is proposed for the near-surface drift current in a homogeneous, equilibrium sea. The momentum balance is formulated for a mass-weighted mean in curvilinear surface-conforming coordinates. Stokes ... -
Potential Vorticity and Instability in the Pacific Equatorial Undercurrent West of the Galápagos Archipelago
(American Meteorological Society, 2022)The Galápagos Archipelago lies on the equator in the path of the eastward flowing Pacific Equatorial Undercurrent (EUC). When the EUC reaches the archipelago, it upwells and bifurcates into a north and south branch around ... -
The Ocean Boundary Layer beneath Larsen C Ice Shelf: Insights from Large-Eddy Simulations with a Near-Wall Model
(American Meteorological Society, 2022)The melt rate of Antarctic ice shelves is of key importance for rising sea levels and future climate scenarios. Recent observations beneath Larsen C Ice Shelf revealed an ocean boundary layer that was highly turbulent and ... -
Roles of Surface Forcing in the Southern Ocean Temperature and Salinity Changes under Increasing CO2: Perspectives from Model Perturbation Experiments and a Theoretical Framework
(American Meteorological Society, 2022)A rapid warming and freshening of the Southern Ocean have been observed over the past several decades and are attributed to anthropogenic climate change. In this study, ocean model perturbation experiments are conducted ... -
The Polar Transition from Alpha to Beta Regions Set by a Surface Buoyancy Flux Inversion
(American Meteorological Society, 2022)The stratification is primarily controlled by temperature in subtropical regions (alpha ocean) and by salinity in subpolar regions (beta ocean). Between these two regions lies a transition zone, often characterized by deep ... -
Enhanced Near-Inertial Waves and Turbulent Diapycnal Mixing Observed in a Cold- and Warm-Core Eddy in the Kuroshio Extension Region
(American Meteorological Society, 2022)Shipboard observations of upper-ocean current, temperature–salinity, and turbulent dissipation rate were used to study near-inertial waves (NIWs) and turbulent diapycnal mixing in a cold-core eddy (CE) and warm-core eddy ... -
Direct and Rectified Effects of Tropical Instability Waves on the Eastern Tropical Pacific Mean State in a Regional Ocean Model
(American Meteorological Society, 2022)Tropical instability waves (TIWs) are oceanic features propagating westward along the northern front of the Pacific cold tongue. Observational and modeling studies suggest that TIWs may have a large impact on the eastern ... -
Transition from Balanced to Unbalanced Motion in the Eastern Tropical Pacific
(American Meteorological Society, 2022)Kinetic energy associated with inertia–gravity waves (IGWs) and other ageostrophic phenomena often overwhelms kinetic energy due to geostrophic motions for wavelengths on the order of tens of kilometers. Understanding the ... -
Tidally Forced Turbulent Dissipation on a Three-Dimensional Fan in Luzon Strait
(American Meteorological Society, 2022)Moored observations and a realistic, tidally forced 3D model are presented of flow and internal-tide-driven turbulence over a supercritical 3D fan in southeastern Luzon Strait. Two stacked moored profilers, an acoustic ... -
Seasonality of the Mesoscale Inverse Cascade as Inferred from Global Scale-Dependent Eddy Energy Observations
(American Meteorological Society, 2022)Oceanic mesoscale motions including eddies, meanders, fronts, and filaments comprise a dominant fraction of oceanic kinetic energy and contribute to the redistribution of tracers in the ocean such as heat, salt, and ... -
Turbulent Mixing Variability in an Energetic Standing Meander of the Southern Ocean
(American Meteorological Society, 2022)This study presents novel observational estimates of turbulent dissipation and mixing in a standing meander between the Southeast Indian Ridge and the Macquarie Ridge in the Southern Ocean. By applying a finescale ... -
Diagnosing Scale-Dependent Energy Cycles in a High-Resolution Isopycnal Ocean Model
(American Meteorological Society, 2022)Energy exchanges between large-scale ocean currents and mesoscale eddies play an important role in setting the large-scale ocean circulation but are not fully captured in models. To better understand and quantify the ocean ... -
The Characteristics and Variability of Intraseasonal Coastal Kelvin Waves in the Bay of Bengal under Hindcast Conditions and the RCP8.5 Scenario
(American Meteorological Society, 2022)The characteristics and variability of intraseasonal internal coastal Kelvin waves (CKWs) along the Bay of Bengal (BoB) waveguide are investigated in the context of global warming by employing a regional ocean model. The ... -
Drag Coefficient and Its Sea State Dependence under Tropical Cyclones
(American Meteorological Society, 2022)The drag coefficient under tropical cyclones and its dependence on sea states are investigated by combining upper-ocean current observations [using electromagnetic autonomous profiling explorer (EM-APEX) floats deployed ... -
Near-Inertial Wave Energetics Modulated by Background Flows in a Global Model Simulation
(2022)We study the generation, propagation, and dissipation of wind-generated near-inertial waves (NIWs) in a global 1/25° Hybrid Coordinate Ocean Model (HYCOM) simulation with realistic atmospheric forcing and background ...