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Harris, R.; Pollman, C.; Hutchinson, D.; Landing, W.; Axelrad, D.; Morey, S.L.; Dukhovskoy, D.; Vijayaraghavan, K. | ||||
| Title | A screening model analysis of mercury sources, fate and bioaccumulation in the Gulf of Mexico | Type | $loc['typeJournal Article'] | ||
| Year | 2012 | Publication | Environmental Research | Abbreviated Journal | Environ Res |
| Volume | 119 | Issue | Pages | 53-63 | |
| Keywords | Animals; Calibration; Environmental Exposure; Fishes/metabolism; Humans; Mercury/*chemistry/metabolism; *Models, Theoretical; Seawater/*chemistry; Water Pollutants, Chemical/*chemistry/metabolism | ||||
| Abstract | A mass balance model of mercury (Hg) cycling and bioaccumulation was applied to the Gulf of Mexico (Gulf), coupled with outputs from hydrodynamic and atmospheric Hg deposition models. The dominant overall source of Hg to the Gulf is the Atlantic Ocean. Gulf waters do not mix fully however, resulting in predicted spatial differences in the relative importance of external Hg sources to Hg levels in water, sediments and biota. Direct atmospheric Hg deposition, riverine inputs, and Atlantic inputs were each predicted to be the most important source of Hg to at least one of the modeled regions in the Gulf. While incomplete, mixing of Gulf waters is predicted to be sufficient that fish Hg levels in any given location are affected by Hg entering other regions of the Gulf. This suggests that a Gulf-wide approach is warranted to reduce Hg loading and elevated Hg concentrations currently observed in some fish species. Basic data to characterize Hg concentrations and cycling in the Gulf are lacking but needed to adequately understand the relationship between Hg sources and fish Hg concentrations. | ||||
| Address | Reed Harris Environmental Ltd., 180 Forestwood Drive, Oakville, Ontario L6J4E6, Canada. reed@reed-harris.com | ||||
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| Language | English | Summary Language | Original Title | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0013-9351 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | PMID:23102631 | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 234 | ||
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| 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 | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0013-9351 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | PMID:23098613 | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 233 | ||
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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 | Pages | 232-250 | |
| Keywords | Satellite data; Ocean model; Ocean color; Sea surface salinity; Shape comparison; Hausdorff distance | ||||
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| ISSN | 2211-1220 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 78 | ||
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| Author |
Lee, C.M.; Starkweather, S.; Eicken, H.; Timmermans, M.-L.; Wilkinson, J.; Sandven, S.; Dukhovskoy, D.; Gerland, S.; Grebmeier, J.; Intrieri, J.M.; Kang, S.-H.; McCammon, M.; Nguyen, A.T.; Polyakov, I.; Rabe, B.; Sagen, H.; Seeyave, S.; Volkov, D.; Beszczynska-Möller, A.; Chafik, L.; Dzieciuch, M.; Goni, G.; Hamre, T.; King, A.L.; Olsen, A.; Raj, R.P.; Rossby, T.; Skagseth, Ø.; Søiland, H.; Sørensen, K. | ||||
| Title | A Framework for the Development, Design and Implementation of a Sustained Arctic Ocean Observing System | Type | $loc['typeJournal Article'] | ||
| Year | 2019 | Publication | Frontiers in Marine Science | Abbreviated Journal | Front. Mar. Sci. |
| Volume | 6 | Issue | Pages | ||
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| ISSN | 2296-7745 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1044 | ||
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| Author |
Morey, S. L.; Bourassa, M. A.; Dukhovskoy, D. S.; O'Brien, J. J. | ||||
| Title | Modeling the impacts of remote forcing on hurricane storm surge | Type | $loc['typeReport'] | ||
| Year | 2006 | Publication | Abbreviated Journal | ||
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| Publisher | World Meteorological Organization | Place of Publication | Geneva, Switzerland | Editor | Cote, J. |
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| Series Editor | Series Title | Research Activities in Atmospheric and Ocean Modeling, Report No. 36 | Abbreviated Series Title | ||
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| Area | Expedition | Conference | |||
| Funding | NOAA | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 926 | ||
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| Author |
Morey, S. L.; Bourassa, M. A.; Dukhovskoy, D.; O'Brien, J. J. | ||||
| Title | Modeling the oceanic response to air-sea fluxes associated with a tropical storm | Type | $loc['typeReport'] | ||
| Year | 2005 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | 08:3-4 | ||
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| Publisher | World Meteorological Organization | Place of Publication | Editor | ||
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| Series Editor | Series Title | CAS/JSC Working Group on Numerical Experimentation, Research Activities in Atmospheric and Oceanic Modeling | Abbreviated Series Title | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 896 | ||
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| Author |
Morey, S. L.; Bourassa, M. A.; Dukhovskoy, D.; O'Brien, J. J. | ||||
| Title | Modelling the Oceanic Response to Air-Sea Fluxes Associated with a Tropical Storm | Type | $loc['typeReport'] | ||
| Year | 2005 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | 08.03-08.04 | ||
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| Publisher | World Meteorological Organization | Place of Publication | Geneva, Switzerland | Editor | Cote, J. |
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| Series Editor | Series Title | Research Activities in Atmospheric and Ocean Modeling, Report No. 35 | Abbreviated Series Title | ||
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| Funding | NSF, ONR, NASA | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 902 | ||
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| Author |
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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| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1008 | ||
| Permanent link to this record | |||||
| 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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| ISSN | 2072-4292 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ rl18 @ | Serial | 987 | ||
| Permanent link to this record | |||||
| 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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| ISSN | 2072-4292 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ rl18 @ | Serial | 985 | ||
| Permanent link to this record | |||||
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