Department members investigate the dynamics and thermodynamics of ocean circulation. They work globally from the Arctic to the Antarctic and from the Strait of Gibraltar to the Philippine shelf on the full range of oceanic processes, from mixing on centimeter scales to heat balance on the global scale.

Recent Submissions

  • The contrasting dynamics of the buoyancy-forced Lofoten and Greenland Basins 

    Ypma, Stefanie; Spall, Michael A.; Lambert, Erwin; Georgiou, Sotiria; Pietrazak, Julie D.; Katsman, Caroline A. (American Meteorological Society, 2020-04-27)
    The Nordic seas are commonly described as a single basin to investigate their dynamics and sensitivity to environmental changes when using a theoretical framework. Here, we introduce a conceptual model for a two-basin ...
  • Export of middle Atlantic Bight Shelf waters near Cape Hatteras from two years of underwater glider observations 

    Todd, Robert E. (American Geophysical Union, 2020-03-17)
    Equatorward flow of Middle Atlantic Bight (MAB) shelf waters meets poleward flowing South Atlantic Bight shelf waters over the continental shelf near Cape Hatteras, NC, leading to net export of shelf waters into the deep ...
  • Impact of current-wind interaction on vertical processes in the Southern Ocean 

    Song, Hajoon; Marshall, John C.; McGillicuddy, Dennis J.; Seo, Hyodae (American Geophysical Union, 2020-03-17)
    Momentum input from westerly winds blowing over the Southern Ocean can be modulated by mesoscale surface currents and result in changes in large‐scale ocean circulation. Here, using an eddy‐resolving 1/20 degree ocean model ...
  • Surface expression of a wall fountain: application to subglacial discharge plumes 

    McConnochie, Craig D.; Cenedese, Claudia; McElwaine, Jim N. (American Meteorological Society, 2020-04-27)
    We use laboratory experiments and theoretical modeling to investigate the surface expression of a subglacial discharge plume, as occurs at many fjords around Greenland. The experiments consider a fountain that is released ...
  • Characterization of sea surface temperature and air-sea heat flux anomalies associated with mesoscale eddies in the South China Sea 

    Liu, Yingjie; Yu, Lisan; Chen, Ge (American Geophysical Union, 2020-03-16)
    This study is to quantify the effects of mesoscale eddies on air‐sea heat fluxes and related air‐sea variables in the South China Sea. Using satellite observations of sea surface temperature (SST) and sea surface height ...
  • Improved statistical method for quality control of hydrographic observations 

    Gourrion, Jérôme; Szekely, Tanguy; Killick, Rachel E.; Owens, W. Brechner; Reverdin, Gilles; Charpon, Bertrand (American Meteorological Society, 2020-05-04)
    Realistic ocean state prediction and its validation rely on the availability of high quality in situ observations. To detect data errors, adequate quality check procedures must be designed. This paper presents procedures ...
  • EcoCTD for profiling oceanic physical-biological properties from an underway ship 

    Dever, Mathieu; Freilich, Mara; Farrar, J. Thomas; Hodges, Benjamin A.; Lanagan, Thomas; Baron, Andrew J.; Mahadevan, Amala (American Meteorological Society, 2020-05-08)
    The study of ocean dynamics and biophysical variability at submesoscales of O(1) km and O(1) h raises several observational challenges. To address these by underway sampling, we recently developed a towed profiler called ...
  • Origin of interannual variability in global mean sea level 

    Hamlington, Benjamin D.; Piecuch, Christopher G.; Reager, John T.; Chandanpurkar, Hrishi; Frederikse, Thomas; Nerem, Steven; Fasullo, John; Cheon, Se-Hyeon (National Academy of Sciences, 2020-06-08)
    The two dominant drivers of the global mean sea level (GMSL) variability at interannual timescales are steric changes due to changes in ocean heat content and barystatic changes due to the exchange of water mass between ...
  • Search and rescue at sea aided by hidden flow structures 

    Serra, Mattia; Sathe, Pratik; Rypina, Irina I.; Kirincich, Anthony R.; Ross, Shane D.; Lermusiaux, Pierre F. J.; Allen, Arthur; Peacock, Thomas; Haller, George (Nature Communications, 2020-05-26)
    Every year, hundreds of people die at sea because of vessel and airplane accidents. A key challenge in reducing the number of these fatalities is to make Search and Rescue (SAR) algorithms more efficient. Here, we address ...
  • The modulation of Gulf Stream influence on the troposphere by the eddy-driven jet 

    Parfitt, Rhys; Kwon, Young-Oh (American Meteorological Society, 2020-04-13)
    This study suggests that the Gulf Stream influence on the wintertime North Atlantic troposphere is most pronounced when the eddy-driven jet (EDJ) is farthest south and better collocated with the Gulf Stream. Using the ...
  • Introduction to special collection on Arctic Ocean modeling and observational synthesis (FAMOS) 2: Beaufort Gyre phenomenon 

    Proshutinsky, Andrey; Krishfield, Richard A.; Timmermans, Mary-Louise (American Geophysical Union, 2019-07-12)
    One of the foci of the Forum for Artic Modeling and Observational Synthesis (FAMOS) project is improving Arctic regional ice‐ocean models and understanding of physical processes regulating variability of Arctic environmental ...
  • The summer heat balance of the Oregon inner shelf over two decades: mean and interannual variability 

    Lemagie, Emily; Kirincich, Anthony R.; Lentz, Steven J. (American Geophysical Union, 2020-01-24)
    Summer temperature and velocity measurements from 14 years in 15 m of water over the inner shelf off Oregon were used to investigate interannual temperature variability and the capacity of the across‐shelf heat flux to ...
  • Late-1980s regime shift in the formation of the North Pacific subtropical mode water 

    Kim, Sang‐Yeob; Pak, Gyundo; Lee, Ho Jin; Kwon, Young-Oh; Kim, Young Ho (American Geophysical Union, 2020-02-07)
    The formation mechanism as well as its temporal change of the North Pacific subtropical mode water (NPSTMW) is investigated using a 50‐year (1960–2009) ocean general circulation model hindcast. The volume budget analysis ...
  • Trends in physical properties at the southern New England shelf break 

    Harden, Benjamin E.; Gawarkiewicz, Glen G.; Infante, Mia (American Geophysical Union, 2020-01-21)
    We analyze 11 years (2003–2013) of repeat temperature and salinity sections from across the New England shelf break south of Cape Cod during early summer (June–July). The mean sections resolved the shelf break front which ...
  • Seasonal-to-interannual prediction of North American coastal marine ecosystems: forecast methods, mechanisms of predictability, and priority developments 

    Jacox, Michael; Alexander, Michael A.; Siedlecki, Samantha A.; Chen, Ke; Kwon, Young-Oh; Brodie, Stephanie; Ortiz, Ivonne; Tommasi, Desiree; Widlansky, Matthew J.; Barrie, Daniel; Capotondi, Antonietta; Cheng, Wei; Di Lorenzo, Emanuele; Edwards, Christopher; Fiechter, Jerome; Fratantoni, Paula S.; Hazen, Elliott L.; Hermann, Albert J.; Kumar, Arun; Miller, Arthur J.; Pirhalla, Douglas; Pozo Buil, Mercedes; Ray, Sulagna; Sheridan, Scott; Subramanian, Aneesh C.; Thompson, Philip; Thorne, Lesley; Annamalai, Hariharasubramanian; Aydin, Kerim; Bograd, Steven; Griffis, Roger B.; Kearney, Kelly; Kim, Hyemi; Mariotti, Annarita; Merrifield, Mark; Rykaczewski, Ryan R. (Elsevier, 2020-02-20)
    Marine ecosystem forecasting is an area of active research and rapid development. Promise has been shown for skillful prediction of physical, biogeochemical, and ecological variables on a range of timescales, suggesting ...
  • A preindustrial sea-level rise hotspot along the Atlantic Coast of North America 

    Gehrels, W. Roland; Dangendorf, Sönke; Barlow, Natasha L. M.; Saher, Margot H.; Long, Antony J.; Woodworth, Philip L.; Piecuch, Christopher G.; Berk, Kevin (American Geophysical Union, 2020-02-13)
    The Atlantic coast of North America north of Cape Hatteras has been proposed as a “hotspot” of late 20th century sea‐level rise. Here we test, using salt‐marsh proxy sea‐level records, if this coast experienced enhanced ...
  • Evolution of Denmark Strait overflow cyclones and their relationship to overflow surges 

    Almansi, Mattia; Haine, Thomas W. N.; Gelderloos, Renske; Pickart, Robert S. (American Geophysical Union, 2020-02-06)
    Mesoscale features present at the Denmark Strait sill regularly enhance the volume transport of the Denmark Strait overflow (DSO). They are important for the Atlantic Meridional Overturning Circulation and ultimately, for ...
  • Hydroclimate variability from western Iberia (Portugal) during the Holocene: insights from a composite stalagmite isotope record 

    Thatcher, Diana L.; Wanamaker, Alan D.; Denniston, Rhawn F.; Asmerom, Yemane; Polyak, Victor J.; Fullick, Daniel; Ummenhofer, Caroline C.; Gillikin, David P.; Haws, Jonathan A. (SAGE Publications, 2020-03-07)
    Iberia is predicted under future warming scenarios to be increasingly impacted by drought. While it is known that this region has experienced multiple intervals of enhanced aridity over the Holocene, additional ...
  • Transformation and upwelling of bottom water in fracture zone valleys 

    Thurnherr, Andreas M.; Clément, Louis; St. Laurent, Louis C.; Ferrari, Raffaele; Ijichi, Takashi (American Meteorological Society, 2020-03-03)
    Closing the overturning circulation of bottom water requires abyssal transformation to lighter densities and upwelling. Where and how buoyancy is gained and water is transported upward remain topics of debate, not least ...
  • Using the Helmholtz decomposition to define the Indian Ocean meridional overturning streamfunction 

    Han, Lei; Huang, Rui Xin (American Meteorological Society, 2020-03-02)
    The zonally integrated flow in a basin can be separated into the divergent/nondivergent parts, and a uniquely defined meridional overturning circulation (MOC) can be calculated. For a basin with significant volume exchange ...

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