Oceanography

Oceanography in the Department includes ocean circulation and dynamics, air-sea interaction, chemical tracers and cycles, interactions with marine life, and the sedimentary record of past oceans and climates at timescales ranging from years to millions of years. An overarching goal is the study of the ocean's role in the global climate and marine ecosystems. Research programs involve observational, model, and theory components, and is highly interdisciplinary. The faculty have active programs across the globe, from tropical to polar environments, and coastal zones. Research includes study of the dynamics of sea ice, tropical ocean variability, El Niño and other climate oscillations, and ocean/glacial ice interaction. Chemical oceanography faculty examine the marine biogeochemical cycles of major and minor elements, including carbon and anthropogenic compounds in all their forms. They use both observational (measuring geochemical tracers at sea) and modeling approaches to understand ocean circulation, with a specific focus on the ocean's role in the carbon cycle, both today and in the past, and especially its contribution to absorbing anthropogenic carbon dioxide. Biological oceanography faculty study the intereactions of marine organisms with one another and with their physical and chemical environment to understand the their role of ocean biota in the global carbon cycle. Paleoceanography faculty reconstruct changes in surface and deep ocean circulation, changes in ocean productivity and chemistry, and changes in terrestrial environments. An important component of this research involves developing spatial and temporal records of climate change based on biological, chemical, mineralogical, and isotopic measurements on deep sea sediment samples and corals. Strong connections are maintained with the International Research Institute for Climate Prediction (IRI) and the Goddard Institute for Space Studies.

Yen Joe Tan
Personal Information
Yen Joe
Tan
Graduate Student
Earth and Environmental Sciences
Marine Geology and Geophysics
Contact Information
303F Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8355

Fax: 

(845) 365-8156

Fields of interest: 

marine geophysics, seismology
Takaya Uchida
Personal Information
Takaya
Uchida
Graduate Student
Earth and Environmental Sciences
Ocean and Climate Physics
Contact Information
205A Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US

Fax: 

(845) 365-8157
Ryan Abernathey
Personal Information
Ryan
Abernathey
Assistant Professor
Earth and Environmental Sciences
Ocean and Climate Physics
Contact Information
205C Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8185

Fax: 

(845) 365-8156

Fields of interest: 

physical oceanography, ocean circulation, climate dynamics, mesoscale eddies, mixing and transport

My primary research interests are:

  • The role of ocean circulation (particularly the Southern Ocean) in the climate system
  • Dynamics of the Antarctic Circumpolar Current and its overturning circulation
  • Mixing and transport by ocean eddies

 

Education
Ph.D.
Massachusetts Institute of Technology
02/2012
B.A.
Middlebury College
06/2004
Nandini Ramesh
Personal Information
Nandini
Ramesh
Graduate Student
Earth and Environmental Sciences
Ocean and Climate Physics
Contact Information
105F Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8353

Fax: 

(845) 365-8157

Fields of interest: 

Climate Dynamics, Climate Predictability, Physical Oceanography, Decadal Climate Variability, Tropical Pacific, Fisheries and Climate, Complex Systems, Data Science
Education
M.Phil
Columbia University
02/2016
M.Sc.
Australian National University
12/2011
B.Sc.
University of Madras
05/2010
Darren McKee
Personal Information
Darren
McKee
Graduate Research Fellow
Lamont-Doherty Earth Observatory
Ocean and Climate Physics
Contact Information
mckee.jpg
103F Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8831

Fax: 

(845) 365-8157
Xiaojun Yuan
Personal Information
Xiaojun
Yuan
Lamont Research Professor
Lamont-Doherty Earth Observatory
Ocean and Climate Physics
Contact Information
204D Oceangraphy
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8820

Fax: 

(845) 365-8157

Fields of interest: 

My primary research interest is in the Antarcitc atmosphere, ocean and sea ice/glacial ice fields.

I have engaged in studies of variability of the Antarctic atmosphere-ocean-sea ice system and its role in global climate since 1995.My research has progressed from the identification of polar-global linkages, expanded to an ENSO-Antarctic Dipole teleconnection mechanism study, and finally resulted in an Antarctic sea ice forecast. At the same time, I have utilized space-born scatterometer observations and developed a series of studies focused on air-sea interactions on synoptic time scales, ranging from cyclone-sea ice interaction, high wind evaluations to satellite enhanced cyclone statistics in the Southern Ocean. With the accumulation of knowledge regarding climate variability in the atmosphere, sea ice and at the air-sea interface, an understanding of the ocean’s role in the mid-high latitudes climate system becomes increasingly important. However, this task is much more challenging because of sparse observations in the Southern Ocean. In recent years, I have developed a few oceanic field programs to advance our knowledge of how the polar ocean plays out in the climate system.

Education
Ph.D..
Scripps Institution of Oceanography, University of California, San Diego
12/1994
B.S. in Physical Onceanigraphy
Shandong College of Oceanography, Qingdao, China
6/1982
Selected Publications:
Inflow of Warm Circumpolar Deep Water in the Central Amundsen Shelf, Wahlin, A K; Yuan, X; Bjork, G; Nohr, C Journal of Physical Oceanography (2010)
Satellite-based midlatitude cyclone statistics over the Southern Ocean: 2. Tracks and surface fluxes, Yuan, X., J. Patoux and C. Li, J. Geophys. Res., , Volume: 114 (2009)
Trends in Antarctic annual sea ice retreat and advance and their relation to El Nino-Southern Oscillation and Southern Annular Mode variability, Stammerjohn, S. E.; Martinson, D. G.; Smith, R. C.; Yuan, X.; Rind, D. Journal of Geophysical Research-Oceans Mar 14, Volume: 113, Issue: C3 p.: - (2008) Doi 10.1029/2007jc004269
Fronts and strong currents of the upper southeast Indian Ocean, He, Z. G.; Dong, Z. Q.; Yuan, X. J. Acta Oceanologica Sinica, Volume: 25, Issue: 2 p.: 1-24 (2006)
ENSO-related impacts on Antarctic sea ice: a synthesis of phenomenon and mechanisms, Yuan, X. J. Antarctic Science Dec, Volume: 16, Issue: 4 p.: 415-425 (2004) Doi 10.1017/S0954102004002238
High-wind-speed evaluation in the Southern Ocean, Yuan, X. J. Journal of Geophysical Research-Atmospheres Jul 1, Volume: 109, Issue: D13 p.: - (2004) Doi 10.1029/2003jd004179
A Markov model for seasonal forecast of Antarctic sea ice, Chen, D. K.; Yuan, X. J. Journal of Climate Aug, Volume: 17, Issue: 16 p.: 3156-3168 (2004)
Re-evaluating Antarctic sea-ice variability and its teleconnections in a GISS global climate model with improved sea ice and ocean processes, Liu, J. P.; Yuan, X. J.; Martinson, D. G.; Rind, D. International Journal of Climatology Jun 15, Volume: 24, Issue: 7 p.: 841-852 (2004) Doi 10.1002/Joc.1040
Upper ocean thermohaline structure and its temporal variability in the southeast Indian Ocean, Yuan, X. J.; Martinson, D. G.; Dong, Z. Q. Deep-Sea Research Part I-Oceanographic Research Papers Feb, Volume: 51, Issue: 2 p.: 333-347 (2004) DOI 10.1016/j.dsr.2003.10.005
Sensitivity of sea ice to physical parameterizations in the GISS global climate model, Liu, J. P.; Schmidt, G. A.; Martinson, D. G.; Rind, D.; Russell, G.; Yuan, X. J. Journal of Geophysical Research-Oceans Feb 27, Volume: 108, Issue: C2 p.: - (2003) Doi 10.1029/2001jc001167
Evaluating Antarctic sea ice variability and its teleconnections in global climate models, Liu, J. P.; Martinson, D. G.; Yuan, X. J.; Rind, D. International Journal of Climatology Jun 30, Volume: 22, Issue: 8 p.: 885-900 (2002) Doi 10.1002/Joc.770
Mechanism study of the ENSO and southern high latitude climate teleconnections, Liu, J. P.; Yuan, X. J.; Rind, D.; Martinson, D. G. Geophysical Research Letters Jul 15, Volume: 29, Issue: 14 p.: - (2002) Doi 10.1029/2002gl015143
The Antarctic Dipole and its predictability, Yuan, X. J.; Martinson, D. G. Geophysical Research Letters Sep 15, Volume: 28, Issue: 18 p.: 3609-3612 (2001)
Climate response to basin-specific changes in latitudinal temperature gradients and implications for sea ice variability, Rind, D.; Chandler, M.; Lerner, J.; Martinson, D. G.; Yuan, X. Journal of Geophysical Research-Atmospheres Sep 16, Volume: 106, Issue: D17 p.: 20161-20173 (2001)
Antarctic sea ice extent variability and its global connectivity, Yuan, X. J.; Martinson, D. G. Journal of Climate May 15, Volume: 13, Issue: 10 p.: 1697-1717 (2000)
Effect of air-sea-ice interaction on winter 1996 Southern Ocean subpolar storm distribution, Yuan, X. J.; Martinson, D. G.; Liu, W. T. Journal of Geophysical Research-Atmospheres Jan 27, Volume: 104, Issue: D2 p.: 1991-2007 (1999)
Climate variation - Cycling around the South Pole, Yuan, X. J.; Cane, M. A.; Martinson, D. G. Nature Apr 25, Volume: 380, Issue: 6576 p.: 673-674 (1996)
The subarctic frontal zone in the North Pacific: Characteristics of frontal structure from climatological data and synoptic surveys, Yuan, X. J.; Talley, L. D. Journal of Geophysical Research-Oceans Jul 15, Volume: 101, Issue: C7 p.: 16491-16508 (1996)
Christopher J. Zappa
Personal Information
Christopher
J.
Zappa
Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
Ocean and Climate Physics
Lecturer
Earth and Environmental Sciences
Contact Information
204E Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8547

Fax: 

(845) 365-8157

Fields of interest: 

Air-sea interaction, wave dynamics and wave breaking, effect of near-surface turbulence on heat, gas, and momentum transport, infrared remote sensing, upper-ocean processes, coastal and estuarine processes.
Education
Ph.D.
University of Washington
1999
M.S.E.
University of Washington
1994
B.S.M.E.
Columbia University
1992
Alejandro Cifuentes-Lorenzen, University of Connecticut
Yong Zhao, Yale University
Selected Publications:
Tidal and atmospheric influences on near-surface turbulence in an estuary, Orton, P.M.; Zappa, C.J.; McGillis, W.R. Journal of Geophysical Research, Volume: 115 (2010) 10.1029/2010JC006312
Sea breeze forcing of estuary turbulence and CO2 exchange, Orton, P.M.; McGillis, W.R.; Zappa, C.J. Geophysical Research Letters, Volume: 37 (2010) 10.1029/2010GL043159
Rain-induced turbulence and air-sea gas transfer, Zappa, C. J.; Ho, D. T.; McGillis, W. R.; Banner, M. L.; Dacey, J. W. H.; Bliven, L. F.; Ma, B.; Nystuen, J. Journal of Geophysical Research-Oceans Jul 9, Volume: 114 p.: - (2009) Doi 10.1029/2008jc005008
Retrieval of short ocean wave slope using polarimetric imaging, Zappa, C. J.; Banner, M. L.; Schultz, H.; Corrada-Emmanuel, A.; Wolff, L. B.; Yalcin, J. Measurement Science & Technology May, Volume: 19, Issue: 5 p.: - (2008) Doi 10.1088/0957-0233/19/5/055503
Environmental turbulent mixing controls on air-water gas exchange in marine and aquatic systems, Zappa, C. J.; McGillis, W. R.; Raymond, P. A.; Edson, J. B.; Hintsa, E. J.; Zemmelink, H. J.; Dacey, J. W. H.; Ho, D. T. Geophysical Research Letters May 17, Volume: 34, Issue: 10 p.: - (2007) Doi 10.1029/2006gl028790
Sea surface temperature signatures of oceanic internal waves in low winds, Farrar, J. T.; Zappa, C. J.; Weller, R. A.; Jessup, A. T. Journal of Geophysical Research-Oceans Jun 20, Volume: 112, Issue: C6 p.: - (2007) Doi 10.1029/2006jc003947
High-resolution airborne infrared measurements of ocean skin temperature, Zappa, C. J.; Jessup, A. T. Ieee Geoscience and Remote Sensing Letters Apr, Volume: 2, Issue: 2 p.: 146-150 (2005) Doi 10.1109/Lgrs.2004.841629
Air-sea CO2 exchange in the equatorial Pacific, McGillis, W. R.; Edson, J. B.; Zappa, C. J.; Ware, J. D.; McKenna, S. P.; Terray, E. A.; Hare, J. E.; Fairall, C. W.; Drennan, W.; Donelan, M.; DeGrandpre, M. D.; Wanninkhof, R.; Feely, R. A. Journal of Geophysical Research-Oceans Aug 28, Volume: 109, Issue: C8 p.: - (2004) Doi 10.1029/2003jc002256
Influence of rain on air-sea gas exchange: Lessons from a model ocean, Ho, D. T.; Zappa, C. J.; McGillis, W. R.; Bliven, L. F.; Ward, B.; Dacey, J. W. H.; Schlosser, P.; Hendricks, M. B. Journal of Geophysical Research-Oceans Jul 1, Volume: 109, Issue: C8 p.: - (2004) Doi 10.1029/2003jc001806
Microbreaking and the enhancement of air-water transfer velocity, Zappa, C. J.; Asher, W. E.; Jessup, A. T.; Klinke, J.; Long, S. R. Journal of Geophysical Research-Oceans Aug 27, Volume: 109, Issue: C8 p.: - (2004) Doi 10.1029/2003jc001897
Variation in surface turbulence and the gas transfer velocity over a tidal cycle in a macro-tidal estuary, Zappa, C. J.; Raymond, P. A.; Terray, E. A.; McGillis, W. R. Estuaries Dec, Volume: 26, Issue: 6 p.: 1401-1415 (2003)
Stephanie Pfirman
Personal Information
Stephanie
Pfirman
Adjunct Senior Research Scientist
Lamont-Doherty Earth Observatory
Marine Geology and Geophysics
Hirschorn Professor and Chair (Barnard College)
Environmental Science Barnard College
Hirschorn Professor and Chair
Environmental Science Barnard College
Contact Information
109D Oceanography
61 ROute 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8475

Fax: 

(845) 365-8156

Fields of interest: 

Role of sea ice in the redistribution of sediments and pollutants in the Arctic

In 1894, Fridjof Nansen, a Norwegian scientist, was surprised to see on an expedition that Arctic sea ice wasn't always white and pristine, but was often discolored by dust and mud. He vowed to return one day to discover where the sediment was coming from. But Nansen never did return, and 100 years later I became intrigued by the same question when I saw the wide expanses of "dirty" ice in the Arctic. As a result, my main research interest is determining the role of sea ice - a transport mechanism unique to the Arctic - in the redistribution of sediments and pollutants in the Arctic. When I sample a floe for sediment or pollutant load, I want to know where it came from, what's happened to it since the ice first formed and where the ice is going to melt and release its incorporated materials.

I am developing and using a variety of methods to find answers to these questions. In a broader view, an unusual combination of environmental conditions in the Arctic exacerbates climate change, ozone depletion and deposition of pollutants. DDT and heavy metals from regions far to the south accumulate in the Arctic marine food chain. I am interested in finding out how warming in the Arctic could affect the pathways and fate of contaminants.

Education
Ph.D.
MIT
1985
Bachelor of Arts
Colgate
1978