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Author (up) Morey, S. L.; Wienders, N.; Dukhovskoy, D. S.; Bourassa, M. A.
Title Impact of Stokes Drift on Measurements of Surface Currents from Drifters and HF Radar Type $loc['typeAbstract']
Year 2018 Publication American Geophysical Union Abbreviated Journal AGU
Volume Fall Meeting Issue Pages
Keywords 3307 Boundary layer processes, ATMOSPHERIC PROCESSESDE: 4504 Air/sea interactions, OCEANOGRAPHY: PHYSICALDE: 4560 Surface waves and tides, OCEANOGRAPHY: PHYSICALDE: 4572 Upper ocean and mixed layer processes, OCEANOGRAPHY: PHYSICAL
Abstract Concurrent measurements by surface drifters of different configurations and HF radar reveal substantial differences in estimates of the near-surface seawater velocity. On average, speeds of small ultra-thin (5 cm) drifters are significantly greater than co-located drifters with a traditional shallow drogue design, while velocity measurements from the drogued drifters closely match HF radar velocity estimates. Analysis of directional wave spectra measurements from a nearby buoy reveals that Stokes drift accounts for much of the difference between the velocity measurements from the drogued drifters and the ultra-thin drifters, except during times of wave breaking. Under wave breaking conditions, the difference between the ultra-thin drifter velocity and the drogued drifter velocity is much less than the computed Stokes drift. The results suggest that surface currents measured by more common approaches or simulated in models may underrepresent the velocity at the very surface of the ocean that is important for determining momentum and enthalpy fluxes between the ocean and atmosphere and for estimating transport of material at the ocean surface. However, simply adding an estimate of Stokes drift may also not be an appropriate method for estimating the true surface velocity from models or measurements from drogued drifters or HF radar under all sea conditions.
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Publisher Place of Publication Editor
Language Summary Language Original Title
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ISSN ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ user @ Serial 1008
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Author (up) Morey, S. L.; Zavala-Hidalgo, J.; O'Brien, J. J.
Title The seasonal variability of continental shelf circulation in the northern and western Gulf of Mexico from a high-resolution numerical model Type $loc['typeBook Chapter']
Year 2005 Publication New Developments in the Circulation of the Gulf of Mexico Abbreviated Journal
Volume Issue Pages
Keywords Ocean circulation� Mexico, Gulf of� Remote sensing; Ocean circulation� Mexico, Gulf of� Mathematical models
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Corporate Author Thesis
Publisher Place of Publication Editor Sturges, W.; Lugo-Fernandez, A.
Language Summary Language Original Title
Series Editor Series Title Geophys. Mongr. Ser. Abbreviated Series Title
Series Volume Series Issue 161 Edition
ISSN ISBN Medium
Area Expedition Conference
Funding ONR, NASA, MMS Approved $loc['no']
Call Number COAPS @ mfield @ Serial 852
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Author (up) Morey, S. L.; Zavala-Hidalgo, J.; O'Brien, J. J.
Title High-resolution ocean modeling of the Gulf of Mexico Type $loc['typeReport']
Year 2001 Publication Abbreviated Journal
Volume Issue Pages
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Research Activities in Atmospheric and Ocean Modeling, Report No. 31 pp., World Meteorological Organization, Geneva, Switzerland Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @ Serial 812
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Author (up) Morey, S.; Koch, M.; Liu, Y.; Lee, S. -K.
Title Florida's oceans and marine habitats in a changing climate Type $loc['typeBook Chapter']
Year 2017 Publication Florida's climate: Changes, variations, & impacts Abbreviated Journal
Volume Issue Pages 391-425
Keywords Ocean climate; Sea level rise; Florida climate; Gulf of Mexico; AMOC; Caribbean climate; Florida hydrology; Florida reefs; Global warming
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Publisher Florida Climate Institute Place of Publication Gainesville, FL Editor Chassignet, E. P.; Jones, J. W.; Misra, V.; Obeysekera, J.
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @ Serial 848
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Author (up) Morey, S.; Wienders, N.; Dukhovskoy, D.; Bourassa, M.
Title Measurement Characteristics of Near-Surface Currents from Ultra-Thin Drifters, Drogued Drifters, and HF Radar Type $loc['typeJournal Article']
Year 2018 Publication Remote Sensing Abbreviated Journal Remote Sensing
Volume 10 Issue 10 Pages 1633
Keywords surface drifters; surface currents; HF Radar
Abstract Concurrent measurements by satellite tracked drifters of different hull and drogue configurations and coastal high-frequency radar reveal substantial differences in estimates of the near-surface velocity. These measurements are important for understanding and predicting material transport on the ocean surface as well as the vertical structure of the near-surface currents. These near-surface current observations were obtained during a field experiment in the northern Gulf of Mexico intended to test a new ultra-thin drifter design. During the experiment, thirty small cylindrical drifters with 5 cm height, twenty-eight similar drifters with 10 cm hull height, and fourteen drifters with 91 cm tall drogues centered at 100 cm depth were deployed within the footprint of coastal High-Frequency (HF) radar. Comparison of collocated velocity measurements reveals systematic differences in surface velocity estimates obtained from the different measurement techniques, as well as provides information on properties of the drifter behavior and near-surface shear. Results show that the HF radar velocity estimates had magnitudes significantly lower than the 5 cm and 10 cm drifter velocity of approximately 45% and 35%, respectively. The HF radar velocity magnitudes were similar to the drogued drifter velocity. Analysis of wave directional spectra measurements reveals that surface Stokes drift accounts for much of the velocity difference between the drogued drifters and the thin surface drifters except during times of wave breaking.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2072-4292 ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ rl18 @ Serial 987
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Author (up) Morey, S.; Wienders, N.; Dukhovskoy, D.; Bourassa, M.
Title Measurement Characteristics of Near-Surface Currents from Ultra-Thin Drifters, Drogued Drifters, and HF Radar Type $loc['typeJournal Article']
Year 2018 Publication Remote Sensing Abbreviated Journal Remote Sensing
Volume 10 Issue 10 Pages 1633
Keywords surface drifters; surface currents; HF Radar; STOKES DRIFT; SEA-SURFACE; WAVES; BREAKING; VALIDATION; TRANSPORT
Abstract Concurrent measurements by satellite tracked drifters of different hull and drogue configurations and coastal high-frequency radar reveal substantial differences in estimates of the near-surface velocity. These measurements are important for understanding and predicting material transport on the ocean surface as well as the vertical structure of the near-surface currents. These near-surface current observations were obtained during a field experiment in the northern Gulf of Mexico intended to test a new ultra-thin drifter design. During the experiment, thirty small cylindrical drifters with 5 cm height, twenty-eight similar drifters with 10 cm hull height, and fourteen drifters with 91 cm tall drogues centered at 100 cm depth were deployed within the footprint of coastal High-Frequency (HF) radar. Comparison of collocated velocity measurements reveals systematic differences in surface velocity estimates obtained from the different measurement techniques, as well as provides information on properties of the drifter behavior and near-surface shear. Results show that the HF radar velocity estimates had magnitudes significantly lower than the 5 cm and 10 cm drifter velocity of approximately 45% and 35%, respectively. The HF radar velocity magnitudes were similar to the drogued drifter velocity. Analysis of wave directional spectra measurements reveals that surface Stokes drift accounts for much of the velocity difference between the drogued drifters and the thin surface drifters except during times of wave breaking.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2072-4292 ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ rl18 @ Serial 985
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Author (up) Morey, S.L.
Title Remotely sensed winds for episodic forcing of ocean models Type $loc['typeJournal Article']
Year 2005 Publication Journal of Geophysical Research Abbreviated Journal J. Geophys. Res.
Volume 110 Issue C10 Pages
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Abstract
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0148-0227 ISBN Medium
Area Expedition Conference
Funding NASA, ONR, DMEFS, NOAA, NSF, NOAA, OGP Approved $loc['no']
Call Number COAPS @ mfield @ Serial 448
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Author (up) Morey, S.L.
Title Export pathways for river discharged fresh water in the northern Gulf of Mexico Type $loc['typeJournal Article']
Year 2003 Publication Journal of Geophysical Research Abbreviated Journal J. Geophys. Res.
Volume 108 Issue C10 Pages
Keywords cross-shelf transport; fresh water; Gulf of Mexico
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0148-0227 ISBN Medium
Area Expedition Conference
Funding ONR, NASA Approved $loc['no']
Call Number COAPS @ mfield @ Serial 471
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Author (up) Morey, S.L.
Title The spring transition from horizontal to vertical thermal stratification on a midlatitude continental shelf Type $loc['typeJournal Article']
Year 2002 Publication Journal of Geophysical Research Abbreviated Journal J. Geophys. Res.
Volume 107 Issue C8 Pages
Keywords continental shelf; stratification; Mixed Layer Dynamics; Coastal Ocean Modeling; West Florida Shelf
Abstract
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0148-0227 ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @ Serial 493
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Author (up) Morey, S.L.; Baig, S.; Bourassa, M.A.; Dukhovskoy, D.S.; O'Brien, J.J.
Title Remote forcing contribution to storm-induced sea level rise during Hurricane Dennis Type $loc['typeJournal Article']
Year 2006 Publication Geophysical Research Letters Abbreviated Journal Geophys. Res. Lett.
Volume 33 Issue 19 Pages
Keywords
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0094-8276 ISBN Medium
Area Expedition Conference
Funding NOAA, NASA, OVWST Approved $loc['no']
Call Number COAPS @ mfield @ Serial 433
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