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Observing the Ocean with Autonomous and Lagrangian Platforms and Sensors:The Role of ALPS in Sustained Ocean Observing Systems
Autonomous Lagrangian Platforms Sensors ALPS Sustained Ocean Observing Systems
2015/7/31
Oceanographers have long dreamed of a detailed, 4-D view of the ocean. The last decade has witnessed a revolution in autonomous ocean observing capabilities as new platforms and sensors developed, and...
Lagrangian drifter paths and length scales in the tropical Pacific warm pool from 1990 to 1991:with application of fractal techniques
Lagrangian drifter paths length scales tropical Pacific warm pool fractal techniques
2009/11/16
This paper presents an analysis of WOCE/TOGA surface drifter paths and its interpretation in conjunction with the west Pacific warm pool water motion. Our interest here lies in the existence of scale ...
Multifractal intermittency of Eulerian and Lagrangian turbulence of ocean temperature and plankton fields
Multifractal intermittency Eulerian and Lagrangian turbulence ocean temperature plankton fields
2009/11/16
In this paper, we present evidence that intermittency of Eulerian and Lagrangian turbulence of ocean temperature and plankton fields is multifractal and furthermore can be analysed with the help of un...
Lagrangian predictability of high-resolution regional models:the special case of the Gulf of Mexico
Lagrangian predictability high-resolution regional models special case Gulf of Mexico
2009/11/11
The Lagrangian prediction skill (model ability to reproduce Lagrangian drifter trajectories) of the nowcast/forecast system developed for the Gulf of Mexico at the University of Colorado at Boulder is...
Lagrangian velocity statistics of directed launch strategies in a Gulf of Mexico model
Lagrangian velocity statistics directed launch strategies Gulf of Mexico model
2009/11/11
The spatial dependence of Lagrangian displacement and velocity statistics is studied in the context of a data assimilating numerical model of the Gulf Mexico. In the active eddy region of the Western ...
Lagrangian characteristics of continental shelf flows forced by periodic wind stress
Lagrangian characteristics continental shelf flows periodic wind stress
2009/11/11
The coastal ocean may experience periods of fluctuating along-shelf wind direction, causing shifts between upwelling and downwelling conditions with responses that are not symmetric. We seek to unders...
Lagrangian Measurements in a Coastal Upwelling Zone off Oregon
Coastal Upwelling Experiment Lagrangian Measurements
2009/3/26
During August 1972 drogue and hydrographic measurements were made in the coastal upwelling zone off the Oregon coast. The study was conducted as a component of the Coastal Upwelling Experiment (CUE-1)...
Calculations of Differential Kinematic Properties from Lagrangian Observations in the Western Caribbean Sea
Differential Kinematic Properties Lagrangian Observations Western Caribbean Sea
2009/3/24
Observations of the motions of drifter clusters were made in the western Caribbean Sea during the summer of 1971. By two independent analyses of the relative motions of a cluster, two time series of h...
Determination of Lagrangian Deformations from Analysis of Current Followers
Lagrangian Deformations Current Followers
2009/3/7
Methods are presented to determine Lagrangian deformations and turbulence statistics from current followers (drogues, neutrally buoyant floats, etc.). Such determinations allow general advection-diffu...
Near-Surface Measurements of Quasi-Lagrangian Velocities in Open Water
Near-Surface Measurements Quasi-Lagrangian Velocities Open Water
2009/2/6
Near-surface water velocities have been measured in the coastal zone of Lake Huron and Cape Cod Bay by tracking drifters and drogues using acoustic travel time and compass sighting techniques. The nea...
Towards a Lagrangian Description of the Gulf Stream
Gulf Stream Downstream velocity SOFAR floats
2009/1/19
Downstream velocity relative to the axis of the Gulf Stream is examined through the use of data from SOFAR floats. The speed calculated from the position of the floats along constant pressure surfaces...
An Event in Water Exchange between Continental Shelf and the Kuroshio off Southern Japan：Lagrangian Tracking of a Low-Salinity Water Mass on the Kuroshio
Water Exchange Continental Shelf Low-Salinity Water Mass Kuroshio
2009/1/7
Low-salinity water masses were occasionally observed in spring and summer on the surface of the Kuroshio, south of Japan. Many of the masses were accompanied by excessive discharge of fresh water from...
The Lagrangian Potential Vorticity Balance during POLYMODE
Lagrangian Potential Vorticity Balance POLYMODE SOFAR floats
2009/1/4
The terms in the Lagrangian potential vorticity equation are estimated by three different methods using clusters of SOFAR floats in the main (700 m) and lower (1300 m) thermocline of the POLYMODE regi...
Lagrangian Motions and Global Density Distributions of Floating Matter in the Ocean Simulated Using Shipdrift Data
Lagrangian Motions Floating Matter Global Density Distributions Ocean Simulated Using Shipdrift Data
2008/12/27
The Lagrangian motions of floating matter on the sea surface were simulated by using the surface current data based on shipdrift data produced by Meehl. The validity of the simulation was confirmed by...
An Inverse Model of the North Atlantic General Circulation Using Lagrangian Float Data
Inverse Model Lagrangian Float Data North Atlantic General Circulation
2008/12/18
A nonlinear finite-difference inverse model is used for estimating the North Atlantic general circulation between 20° and 50°N. The inverse model with grid spacing 2° latitude and 2.5° longitude is ba...