Determining Vertical Water Velocities from Seaglider
Vertical velocities in the world’s oceans are typically small, less than 1 cm s21, posing a significant challenge for observational techniques. Seaglider, an autonomous profiling instrument, can be used to estimate vertical water velocity in the ocean. Using a Seaglider’s flight model and pressure o...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.657.9562 2023-05-15T17:06:08+02:00 Determining Vertical Water Velocities from Seaglider Eleanor Frajka-williams Charles C. Eriksen Peter B. Rhines Ramsey R. Harcourt The Pennsylvania State University CiteSeerX Archives 2010 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.657.9562 http://eprints.soton.ac.uk/206147/1/2011_jtech_frajkawilliams_etal_determining_vertical_water_velocities_Seaglider.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.657.9562 http://eprints.soton.ac.uk/206147/1/2011_jtech_frajkawilliams_etal_determining_vertical_water_velocities_Seaglider.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://eprints.soton.ac.uk/206147/1/2011_jtech_frajkawilliams_etal_determining_vertical_water_velocities_Seaglider.pdf text 2010 ftciteseerx 2016-01-08T16:42:21Z Vertical velocities in the world’s oceans are typically small, less than 1 cm s21, posing a significant challenge for observational techniques. Seaglider, an autonomous profiling instrument, can be used to estimate vertical water velocity in the ocean. Using a Seaglider’s flight model and pressure observations, vertical water ve-locities are estimated along glider trajectories in the Labrador Sea before, during, and after deep convection. Results indicate that vertical velocities in the stratified ocean agree with the theoretical Wentzel–Kramers– Brillouin (WKB) scaling of w; and in the turbulent mixed layer, scale with buoyancy, and wind forcing. It is estimated that accuracy is to within 0.5 cm s21. Because of uncertainties in the flight model, velocities are poor near the surface and deep apogees, and during extended roll maneuvers. Some of this may be improved by using a dynamic flight model permitting acceleration and by better constraining flight parameters through pilot choices during the mission. 1. Text Labrador Sea Unknown |
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English |
description |
Vertical velocities in the world’s oceans are typically small, less than 1 cm s21, posing a significant challenge for observational techniques. Seaglider, an autonomous profiling instrument, can be used to estimate vertical water velocity in the ocean. Using a Seaglider’s flight model and pressure observations, vertical water ve-locities are estimated along glider trajectories in the Labrador Sea before, during, and after deep convection. Results indicate that vertical velocities in the stratified ocean agree with the theoretical Wentzel–Kramers– Brillouin (WKB) scaling of w; and in the turbulent mixed layer, scale with buoyancy, and wind forcing. It is estimated that accuracy is to within 0.5 cm s21. Because of uncertainties in the flight model, velocities are poor near the surface and deep apogees, and during extended roll maneuvers. Some of this may be improved by using a dynamic flight model permitting acceleration and by better constraining flight parameters through pilot choices during the mission. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Eleanor Frajka-williams Charles C. Eriksen Peter B. Rhines Ramsey R. Harcourt |
spellingShingle |
Eleanor Frajka-williams Charles C. Eriksen Peter B. Rhines Ramsey R. Harcourt Determining Vertical Water Velocities from Seaglider |
author_facet |
Eleanor Frajka-williams Charles C. Eriksen Peter B. Rhines Ramsey R. Harcourt |
author_sort |
Eleanor Frajka-williams |
title |
Determining Vertical Water Velocities from Seaglider |
title_short |
Determining Vertical Water Velocities from Seaglider |
title_full |
Determining Vertical Water Velocities from Seaglider |
title_fullStr |
Determining Vertical Water Velocities from Seaglider |
title_full_unstemmed |
Determining Vertical Water Velocities from Seaglider |
title_sort |
determining vertical water velocities from seaglider |
publishDate |
2010 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.657.9562 http://eprints.soton.ac.uk/206147/1/2011_jtech_frajkawilliams_etal_determining_vertical_water_velocities_Seaglider.pdf |
genre |
Labrador Sea |
genre_facet |
Labrador Sea |
op_source |
http://eprints.soton.ac.uk/206147/1/2011_jtech_frajkawilliams_etal_determining_vertical_water_velocities_Seaglider.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.657.9562 http://eprints.soton.ac.uk/206147/1/2011_jtech_frajkawilliams_etal_determining_vertical_water_velocities_Seaglider.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766061144205688832 |