Records |
Author |
Harris, R.; Pollman, C.; Landing, W.; Evans, D.; Axelrad, D.; Hutchinson, D.; Morey, S.L.; Rumbold, D.; Dukhovskoy, D.; Adams, D.H.; Vijayaraghavan, K.; Holmes, C.; Atkinson, R.D.; Myers, T.; Sunderland, E. |
Title |
Mercury in the Gulf of Mexico: sources to receptors |
Type |
$loc['typeJournal Article'] |
Year |
2012 |
Publication |
Environmental Research |
Abbreviated Journal |
Environ Res |
Volume |
119 |
Issue |
|
Pages |
42-52 |
Keywords |
Air Pollutants/chemistry; Animals; Environmental Exposure; Food Chain; Geologic Sediments/chemistry; Humans; Mercury/*chemistry/metabolism; Seawater/*chemistry; Water Pollutants, Chemical/*chemistry/metabolism |
Abstract |
Gulf of Mexico (Gulf) fisheries account for 41% of the U.S. marine recreational fish catch and 16% of the nation's marine commercial fish landings. Mercury (Hg) concentrations are elevated in some fish species in the Gulf, including king mackerel, sharks, and tilefish. All five Gulf states have fish consumption advisories based on Hg. Per-capita fish consumption in the Gulf region is elevated compared to the U.S. national average, and recreational fishers in the region have a potential for greater MeHg exposure due to higher levels of fish consumption. Atmospheric wet Hg deposition is estimated to be higher in the Gulf region compared to most other areas in the U.S., but the largest source of Hg to the Gulf as a whole is the Atlantic Ocean (>90%) via large flows associated with the Loop Current. Redistribution of atmospheric, Atlantic and terrestrial Hg inputs to the Gulf occurs via large scale water circulation patterns, and further work is needed to refine estimates of the relative importance of these Hg sources in terms of contributing to fish Hg levels in different regions of the Gulf. Measurements are needed to better quantify external loads, in-situ concentrations, and fluxes of total Hg and methylmercury in the water column, sediments, and food web. |
Address |
Reed Harris Environmental Ltd, 180 Forestwood Drive, Oakville, Ontario L6J4E6, Canada. reed@reed-harris.com |
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Language |
English |
Summary Language |
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Original Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0013-9351 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
PMID:23098613 |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
233 |
Permanent link to this record |
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Author |
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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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2072-4292 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ rl18 @ |
Serial |
987 |
Permanent link to this record |
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Author |
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. |
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Series Issue |
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Edition |
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ISSN |
2072-4292 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ rl18 @ |
Serial |
985 |
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Author |
Nedbor-Gross, R.; Dukhovskoy, D.S.; Bourassa, M.A.; Morey, S.L.; Chassignet, E.P. |
Title |
Investigation of the Relationship Between the Yucatan Channel Transport and the Loop Current Area in a Multidecadal Numerical Simulation |
Type |
$loc['typeJournal Article'] |
Year |
2014 |
Publication |
Marine Technology Society Journal |
Abbreviated Journal |
Mar Technol Soc J |
Volume |
48 |
Issue |
4 |
Pages |
15-26 |
Keywords |
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ISSN |
0025-3324 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
145 |
Permanent link to this record |
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Author |
Hiester, H.R.; Morey, S.L.; Dukhovskoy, D.S.; Chassignet, E.P.; Kourafalou, V.H.; Hu, C. |
Title |
A topological approach for quantitative comparisons of ocean model fields to satellite ocean color data |
Type |
$loc['typeJournal Article'] |
Year |
2016 |
Publication |
Methods in Oceanography |
Abbreviated Journal |
Methods in Oceanography |
Volume |
17 |
Issue |
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Pages |
232-250 |
Keywords |
Satellite data; Ocean model; Ocean color; Sea surface salinity; Shape comparison; Hausdorff distance |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2211-1220 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
78 |
Permanent link to this record |
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Author |
Morey, S.L.; Dukhovskoy, D.S. |
Title |
A downscaling method for simulating deep current interactions with topography – Application to the Sigsbee Escarpment |
Type |
$loc['typeJournal Article'] |
Year |
2013 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
69 |
Issue |
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Pages |
50-63 |
Keywords |
Ocean modeling; Model nesting; Topographic flows; USA; Gulf of Mexico; Sigsbee Escarpment |
Abstract |
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Edition |
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ISSN |
1463-5003 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
DeepStar, HYCOM Consortium |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
183 |
Permanent link to this record |
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Author |
Dukhovskoy, D.S.; Morey, S.L.; Martin, P.J.; O'Brien, J.J.; Cooper, C. |
Title |
Application of a vanishing, quasi-sigma, vertical coordinate for simulation of high-speed, deep currents over the Sigsbee Escarpment in the Gulf of Mexico |
Type |
$loc['typeJournal Article'] |
Year |
2009 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
28 |
Issue |
4 |
Pages |
250-265 |
Keywords |
Numerical models; Deep currents; Topographic waves; Numerical truncation error; Vertical discretization; Sigsbee Escarpment; Gulf of Mexico |
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Series Editor |
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Edition |
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ISSN |
1463-5003 |
ISBN |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
399 |
Permanent link to this record |
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Author |
Dukhovskoy, D.S.; Morey, S.L.; O'Brien, J.J. |
Title |
Influence of multi-step topography on barotropic waves and consequences for numerical modeling |
Type |
$loc['typeJournal Article'] |
Year |
2006 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
14 |
Issue |
1-2 |
Pages |
45-60 |
Keywords |
numerical models; ocean mathematical models; topographic waves; double Kelvin waves; continental shelves; shelf waves |
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ISSN |
1463-5003 |
ISBN |
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Funding |
ONR, NASA |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
443 |
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Author |
Dukhovskoy, D.S.; Leben, R.R.; Chassignet, E.P.; Hall, C.A.; Morey, S.L.; Nedbor-Gross, R. |
Title |
Characterization of the uncertainty of loop current metrics using a multidecadal numerical simulation and altimeter observations |
Type |
$loc['typeJournal Article'] |
Year |
2015 |
Publication |
Deep Sea Research Part I: Oceanographic Research Papers |
Abbreviated Journal |
Deep Sea Research Part I: Oceanographic Research Papers |
Volume |
100 |
Issue |
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Pages |
140-158 |
Keywords |
Eddies and mesoscale processes; Gulf of Mexico; Loop Current; Satellite altimetry; Ocean modeling; Ocean front detection |
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Edition |
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ISSN |
0967-0637 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
100 |
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Author |
Morey, S.L.; Dukhovskoy, D.S.; Bourassa, M.A. |
Title |
Connectivity of the Apalachicola River flow variability and the physical and bio-optical oceanic properties of the northern West Florida Shelf |
Type |
$loc['typeJournal Article'] |
Year |
2009 |
Publication |
Continental Shelf Research |
Abbreviated Journal |
Continental Shelf Research |
Volume |
29 |
Issue |
9 |
Pages |
1264-1275 |
Keywords |
River plumes; Climate variability; Ocean color; West Florida Shelf; Apalachicola River |
Abstract |
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Edition |
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ISSN |
0278-4343 |
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Funding |
NASA, OVWST |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
393 |
Permanent link to this record |