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Author Shropshire, T.; Morey, S. L.; Chassignet, E. P.; Bozec, A.; Coles, V.J.; Landry, M.R.; Swalethorp, R.; Zapfe, G. and Stukel, M.R. url  doi
openurl 
  Title Quantifying spatiotemporal variability in zooplankton dynamics in the Gulf of Mexico with a physical-biogeochemical model Type $loc['typeJournal Article']
  Year 2019 Publication Abbreviated Journal  
  Volume Issue Pages  
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  Abstract Zooplankton play an important role in global biogeochemistry and their secondary production supports valuable fisheries of the world's oceans. Currently, zooplankton abundances cannot be estimated using remote sensing techniques. Hence, coupled physical-biogeochemical models (PBMs) provide an important tool for studying zooplankton on regional and global scales. However, evaluating the accuracy of zooplankton abundance estimates from PBMs has been a major challenge as a result of sparse observations. In this study, we configure a PBM for the Gulf of Mexico (GoM) from 1993&#65533;2012 and validate the model against an extensive combination of in situ biomass and rate measurements including total mesozooplankton biomass, size-fractionated mesozooplankton biomass and grazing rates, microzooplankton specific grazing rates, surface chlorophyll, deep chlorophyll maximum depth, phytoplankton specific growth rates, and net primary production. Spatial variability in mesozooplankton biomass climatology observed in a multi-decadal database for the northern GoM is well resolved by the model with a statistically significant (p&#8201;<&#8201;0.01) correlation of 0.90. Mesozooplankton secondary production for the region averaged 66&#8201;+&#8201;8&#8201;mt&#8201;C&#8201;yr&#8722;1 equivalent to approximately 10&#8201;% of NPP and ranged from 51 to 82&#8201;mt&#8201;C&#8201;yr&#8722;1. In terms of diet, model results from the shelf regions suggest that herbivory is the dominant feeding mode for small mesozooplankton (<&#8201;1-mm) whereas larger mesozooplankton are primarily carnivorous. However, in open-ocean, oligotrophic regions, both groups of mesozooplankton have proportionally greater reliance on heterotrophic protists as a food source. This highlights the important role of microbial and protistan food webs in sustaining mesozooplankton biomass in the GoM which serves as the primary food source for early life stages of many commercially-important fish species, including tuna.  
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  Call Number COAPS @ user @ Serial 1095  
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Author Morey, S. L.; Wienders, N.; Dukhovskoy, D. S.; Bourassa, M. A. url  openurl
  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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  Funding Approved $loc['no']  
  Call Number COAPS @ user @ Serial 1008  
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Author Özgökmen, T.; Chassignet, E.; Dawson, C.; Dukhovskoy, D.; Jacobs, G.; Ledwell, J.; Garcia-Pineda, O.; MadDonald, I.; Morey, S.; Olascoaga, M.; Poje, A.; Reed, M.; Skancke, J. url  doi
openurl 
  Title Over What Area Did the Oil and Gas Spread During the 2010 Deepwater Horizon Oil Spill? Type $loc['typeJournal Article']
  Year 2016 Publication Oceanography Abbreviated Journal Oceanog  
  Volume 29 Issue 3 Pages 96-107  
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  Series Volume Series Issue Edition  
  ISSN 1042-8275 ISBN Medium  
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  Funding Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 87  
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Author Garcia-Pineda, O.; MacDonald, I.; Hu, C.; Svejkovsky, J.; Hess, M.; Dukhovskoy, D.; Morey, S. url  doi
openurl 
  Title Detection of Floating Oil Anomalies From the Deepwater Horizon Oil Spill With Synthetic Aperture Radar Type $loc['typeJournal Article']
  Year 2013 Publication Oceanography Abbreviated Journal oceanog  
  Volume 26 Issue 2 Pages  
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  ISSN 1042-8275 ISBN Medium  
  Area Expedition Conference  
  Funding Deep-C, BOEM Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 213  
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Author Morey, S. L.; O'Brien, J. J.; Schroeder, W. W.; Zavala-Hidalgo, J. url  doi
openurl 
  Title ), Seasonal variability of the export of river discharged freshwater in the Northern gulf of Mexico Type $loc['typeJournal Article']
  Year 2002 Publication MTS/IEEE Oceans 2002 Proceedings Abbreviated Journal  
  Volume Issue Pages 1480-1484  
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  Call Number COAPS @ mfield @ Serial 861  
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Author Zavala-Hidalgo, J.; Morey, S. L.; O'Brien, J. J. url  doi
openurl 
  Title On the formation and interaction of cyclonic eddies with the Loop Current using NCOM and a suite of observations Type $loc['typeJournal Article']
  Year 2002 Publication MTS/IEEE Oceans 2002 Proceedings Abbreviated Journal  
  Volume Issue Pages 1463-1466  
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  Call Number COAPS @ mfield @ Serial 862  
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Author Morey, S. L.; Zavala-Hidalgo, J.; O'Brien, J. J. url  doi
openurl 
  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&#65533; Mexico, Gulf of&#65533; Remote sensing; Ocean circulation&#65533; Mexico, Gulf of&#65533; Mathematical models  
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  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  
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  Area Expedition Conference  
  Funding ONR, NASA, MMS Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 852  
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Author Zavala-Hidalgo, J.; Romero-Centeno, R.; Mateos-Jasso, A.; Morey, S.L.; Martínez-López, B. url  doi
openurl 
  Title The response of the Gulf of Mexico to wind and heat flux forcing: What has been learned in recent years? Type $loc['typeJournal Article']
  Year 2014 Publication Atmósfera Abbreviated Journal Atmósfera  
  Volume 27 Issue 3 Pages 317-334  
  Keywords Gulf of Mexico; ocean surface forcing; upper ocean layer  
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  Series Volume Series Issue Edition  
  ISSN 0187-6236 ISBN Medium  
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  Funding BP/Gulf of Mexico Research Initiative, NASA/OVWST Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 153  
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Author Harris, R.; Pollman, C.; Hutchinson, D.; Landing, W.; Axelrad, D.; Morey, S.L.; Dukhovskoy, D.; Vijayaraghavan, K. url  doi
openurl 
  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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  Series Volume Series Issue Edition  
  ISSN 0013-9351 ISBN Medium  
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  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. url  doi
openurl 
  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  
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  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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