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.

Andrew Juhl
Personal Information
Andrew
Juhl
Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
Biology and Paleo Environment
Biology and Paleo Environment
Adjunct Associate Professor
Earth and Environmental Sciences
Contact Information
2A Marine Biology
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8837

Fax: 

(845) 365-8150

Fields of interest: 

Plankton ecology, Phytoplankton growth and physiology, Zooplankton grazing, Harmful algae, Dinoflagellate blooms, Physical/biological interactions, Nutrient/microbial pollution of coastal waters, Sea-ice algae

As an aquatic ecologist and oceanographer, my research and teaching focus on how aquatic microorganisms and their predators interact with each other and their physical/chemical environment. I emphasize a holistic perspective encompassing the range of planktonic organisms found in coastal marine systems, estuaries, rivers and lakes, including: planktonic algae, protist microzooplankton, invertebrate zooplankton, and bacteria.    

My research approach links hypothesis-driven, controlled laboratory experiments with small-scale field manipulations and field observations. Such research is inherently interdisciplinary, connecting cell biology and physiology with ecology, and physics and chemistry of the environment. My work finds application in addressing basic and applied questions related to aquatic geochemical fluxes, harmful algal blooms, pollution and water quality, and sea ice ecology

Please see my website for more information.

 

 

 

Education
Ph.D. - Biological Oceanography
Scripps Institution of Oceanography, University of California, San Diego
2000
M. S. - Biological Oceanography
College of Oceanography, Oregon State University
1991
B.S. - Zoology
University of Wisconsin, Madison
1988
Selected Publications:
Overwintering of gelatinous zooplankton in the coastal arctic ocean, Purcell, Jennifer E.; Juhl, Andrew R.; Manko, Maciej K.; Aumack, Craig F. (2017)
Conserved transcriptional responses to nutrient stress in bloom-forming algae, Harke, Matthew J; Juhl, Andrew R.; Haley, Sheean T.; Alexander, Harriet; Dyhrman, Sonya T. Frontiers in Microbiology (2017)
Transcriptional response of the harmful raphidophyte Heterosigma akashiwo to nitrate and phosphate stress, Haley, Sheean T.; Alexander, Harriet; Juhl, Andrew R.; T. Dyhrman, Sonya T. Harmful Algae (2017)
Ethan Coffel
Personal Information
Ethan
Coffel
Graduate Student
Earth and Environmental Sciences
Contact Information
Weston Anderson
Personal Information
Weston
Anderson
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

Fax: 

(845) 365-8157

Fields of interest: 

Drought, Hydroclimate, Food Security

My goal is to use remote sensing observations, in-situ measurements and model simulations to understand hydroclimate dynamics and the associated implications for agriculture and food security

Education
B.S. / M.S.E. of Environmental Engineering
Johns Hopkins University
05/2012
Selected Publications:
Crop production variability in North and South America forced by life-cycles of the El Niño Southern Oscillation, Anderson, Weston; Seager, Richard; Baethgen, Walter; Cane, Mark Agricultural and Forest Meteorology (2017) http://dx.doi.org/10.1016/j.agrformet.2017.03.008
Life cycles of agriculturally relevant ENSO teleconnections in North and South America, Anderson, Weston; Seager, Richard; Baethgen, Walter; Cane, Mark International Journal of Climatology (2016) 10.1002/joc.4916
An analysis of methodological and spatial differences in global cropping systems models and maps, Anderson, W.; You, L; Wood, S.; Wood-Sichra, U.; and Wu, W. Global Ecology and Biogeography 10/2014 (2014) DOI: 10.1111/geb.12243
Towards an integrated soil moisture drought monitor for East Africa, Anderson, W.; Zaitchik, B.; Hain, C.; Anderson, M.; Yilmaz, M. T.; Mecikalski, J.; and Schultz, L. Hydrology and Earth System Sciences 08/2012 (2012) doi:10.5194/hess-16-2893-2012
Hugh Ducklow
Personal Information
Hugh
Ducklow
Professor
Earth and Environmental Sciences
Biology and Paleo Environment
Contact Information
208 Geoscience
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8167

Fax: 

(845) 365-8163

Fields of interest: 

Ecosystems ecology, marine and global biogeochemistry, microbial ecology
Education
PhD
Harvard University
05/1977
MS
Harvard University
05/1974
AB
Harvard College
05/1972
Selected Publications:
The Freshwater System West of the Antarctic Peninsula: Spatial and Temporal Changes, Meredith, M.P.; Venables, H. J.; Clarke, A.; Ducklow, H. W.; Erickson, M.; Leng, M. J.; Lenaerts, J. T. M.; van den Broeke, Mi. R. Journal of Climate, Volume: 26 p.: 1669-84 (2013)
A metaproteomic assessment of winter and summer bacterioplankton from Antarctic Peninsula coastal surface waters, Williams, T. J,; Long, E.; Evans, F.; DeMaere, M. Z.; Lauro, F. M.; Raftery, M. J.; Ducklow, H. W.; Grzymski, J. J.; Murray, A. E.; Cavicchioli, R. ISME Journal, Volume: 6 p.: 1883-1900 (2013)
Time series of vertical flux of zooplankton fecal pellets on the continental shelf of the western Antarctic Peninsula, Gleiber, M. R.; Steinberg, D. K.; Ducklow, H. W. Marine Ecology Progress Series, Volume: 471 p.: 23-36 (2012)
What is the metabolic status of the oligotrophic ocean, Ducklow, H. W.; Doney, S. C. Annual Review of Marine Science, Volume: 5 p.: 15.1-15.9 (2012)
Marine pelagic ecosystems: The West Antarctic Peninsula, Ducklow, H. W.; Baker, K.; Martinson, D. G.; Quetin, L. B.; Ross, R. M.; Smith, R. C.; Stammerjohn, S. E.; Vernet, M.; Fraser, W. Philosophical Transactions of the Royal Society B-Biological Sciences Jan 29, Volume: 362, Issue: 1477 p.: 67-94 (2007)
Production and Fate of Bacteria in the Oceans, Ducklow, H. W. Bioscience, Volume: 33, Issue: 8 p.: 494-501 (1983)
William M. Smethie Jr.
Personal Information
William
M.
Smethie Jr.
Lamont Research Professor
Lamont-Doherty Earth Observatory
Geochemistry
Associate Director - Geochemistry
Lamont-Doherty Earth Observatory
Contact Information
129 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8566

Fax: 

(845) 365-8176
Alexey Kaplan
Personal Information
Alexey
Kaplan
Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
Ocean and Climate Physics
Contact Information
103C Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8689

Fax: 

(845) 365-8157

Fields of interest: 

Analyses of climate fields based on historical, instrumental and paleoclimatic data; El Nino and Southern Oscillation; ocean data assimilation; statistical studies of climate variability from observations and models

I work in the Climate Modeling Group which is part of the LDEO Division of Ocean and Climate Physics. My research is on climate variability, predictability, and prediction, and on methods to study such things. It involves historical climate analyses, paleoclimatic reconstructions, data assimilation, and studies of error dynamics in the ocean and coupled climate models.

Education
Ph.D., Mechanical Engineering
Russian State University of Oil and Gas, Moscow, Russia
1990
B.S. (honors), Applied Mathematics
Russian State University of Oil and Gas, Moscow, Russia
1985
Selected Publications:
On the fidelity of shell-derived δ18Oseawater estimates, Arbuszewski, J.A.; deMenocal, P.; Kaplan, A.; Farmer, E.C. Earth and Planetary Science Letters, Volume: 300, Issue: 3-4 p.: 185-196 (2010)
Evaluating climate variability and change from modern and historical SST observations, Rayner, N A; Kaplan, A; Kent, E C; Reynolds, R W; Brohan, P; Casey, K S; Kennedy, J J; Woodru ff, S D; Smith, T M; Donlon, C; Breivik, L A; Eastwood, S; Ishii, M; Brandon, T , Venice, Italy (2009)
The evolution of the equatorial Pacific zonal SST gradient during the twentieth century, Karnauskas, K B; Seager, R; Kaplan, A; Kushnir, Y; Cane, M A J Climate, Volume: 22, Issue: 16 p.: 4316-4321 (2009)
Interdecadal-decadal climate variability from multicoral oxygen isotope records in the South Pacific Convergence Zone region since 1650 A.D., Linsley, B. K.; Zhang, P. P.; Kaplan, A.; Howe, S. S.; Wellington, G. M. Paleoceanography Jun 20, Volume: 23, Issue: 2 p.: - (2008) Doi 10.1029/2007pa001539
An 8-century tropical Atlantic SST record from the Cariaco Basin: Baseline variability, twentieth-century warming, and Atlantic hurricane frequency, Black, D. E.; Abahazi, M. A.; Thunell, R. C.; Kaplan, A.; Tappa, E. J.; Peterson, L. C. Paleoceanography Oct 25, Volume: 22, Issue: 4 p.: - (2007) Doi 10.1029/2007pa001427
Corroborating ecological depth preferences of planktonic foraminifera in the tropical Atlantic with the stable oxygen isotope ratios of core top specimens, Farmer, E. C.; Kaplan, A.; deMenocal, P. B.; Lynch-Stieglitz, J. Paleoceanography Aug 1, Volume: 22, Issue: 3 p.: - (2007) Doi 10.1029/2006pa001361
The degree of anisotropy for mid-ocean currents from satellite observations and an eddy-permitting model simulation, Huang, H. P.; Kaplan, A.; Curchitser, E. N.; Maximenko, N. A. Journal of Geophysical Research-Oceans Sep 12, Volume: 112, Issue: C9 p.: - (2007) Doi 10.1029/2007jc004105
El Nino as a mediator of the solar influence on climate, Emile-Geay, J.; Cane, M.; Seager, R.; Kaplan, A.; Almasi, P. Paleoceanography Aug 8, Volume: 22, Issue: 3 p.: - (2007) Doi 10.1029/2006pa001304
Comments on "Testing the Fidelity of Methods Used in Proxy-Based Reconstructions of Past Climate": The role of the standardization interval, Smerdon, J. E.; Kaplan, A. Journal of Climate Nov 15, Volume: 20, Issue: 22 p.: 5666-5670 (2007) Doi 10.1175/2007jcli1794.1
The effects of sea-ice and land-snow concentrations on planetary albedo from the earth radiation budget experiment, Gorodetskaya, I. V.; Came, M. A.; Tremblay, L. B.; Kaplan, A. Atmosphere-Ocean Jun, Volume: 44, Issue: 2 p.: 195-205 (2006)
A forward modeling approach to paleoclimatic interpretation of tree-ring data, Evans, M. N.; Reichert, B. K.; Kaplan, A.; Anchukaitis, K. J.; Vaganov, E. A.; Hughes, M. K.; Cane, M. A. Journal of Geophysical Research-Biogeosciences Aug 10, Volume: 111, Issue: G3 p.: - (2006) Doi 10.1029/2006jg000166
Forward modeling of regional scale tree-ring patterns in the southeastern United States and the recent influence of summer drought, Anchukaitis, K. J.; Evans, M. N.; Kaplan, A.; Vaganov, E. A.; Hughes, M. K.; Grissino-Mayer, H. D.; Cane, M. A. Geophysical Research Letters Feb 21, Volume: 33, Issue: 4 p.: - (2006) Doi 10.1029/2005gl025050
Predictability loss in an intermediate ENSO model due to initial error and atmospheric noise, Karspeck, A. R.; Kaplan, A.; Cane, M. A. Journal of Climate Aug, Volume: 19, Issue: 15 p.: 3572-3588 (2006)
Toward estimating climatic trends in SST. Part III: Systematic biases, Kent, E. C.; Kaplan, A. Journal of Atmospheric and Oceanic Technology Mar, Volume: 23, Issue: 3 p.: 487-500 (2006)
Tracking the extent of the South Pacific Convergence Zone since the early 1600s, Linsley, B. K.; Kaplan, A.; Gouriou, Y.; Salinger, J.; deMenocal, P. B.; Wellington, G. M.; Howe, S. S. Geochemistry Geophysics Geosystems May 3, Volume: 7 p.: - (2006) Doi 10.1029/2005gc001115
Multi-scale modeling of the North Pacific Ocean: Assessment and analysis of simulated basin-scale variability (1996-2003), Curchitser, E. N.; Haidvogel, D. B.; Hermann, A. J.; Dobbins, E. L.; Powell, T. M.; Kaplan, A. Journal of Geophysical Research-Oceans Nov 30, Volume: 110, Issue: C11 p.: - (2005) Doi 10.1029/2005jc002902
Radiocarbon calibration curve spanning 0 to 50,000 years BP based on paired Th-230/U-234/U-238 and C-14 dates on pristine corals, Fairbanks, R. G.; Mortlock, R. A.; Chiu, T. C.; Cao, L.; Kaplan, A.; Guilderson, T. P.; Fairbanks, T. W.; Bloom, A. L.; Grootes, P. M.; Nadeau, M. J. Quaternary Science Reviews Sep, Volume: 24, Issue: 16-17 p.: 1781-1796 (2005) DOI 10.1016/j.quascirev.2005.04.007
The relationship between tibetan snow depth, ENSO, river discharge and the monsoons of Bangladesh, Shaman, J.; Cane, M.; Kaplan, A. International Journal of Remote Sensing Sep 10, Volume: 26, Issue: 17 p.: 3735-3748 (2005) Doi 10.1080/01431160500185599
A 2000-year record of Caribbean and tropical North Atlantic hydrographic variability, Black, D. E.; Thunell, R. C.; Kaplan, A.; Peterson, L. C.; Tappa, E. J. Paleoceanography Jun 23, Volume: 19, Issue: 2 p.: - (2004) Doi 10.1029/2003pa000982
Predictability of El Nino over the past 148 years, Chen, D.; Cane, M. A.; Kaplan, A.; Zebiak, S. E.; Huang, D. J. Nature Apr 15, Volume: 428 p.: 733-736 (2004) Doi 10.1038/Nature02439
Small-scale variability and model error in tropical Pacific sea level, Kaplan, A.; Cane, M. A.; Chen, D.; Witter, D. L.; Cheney, R. E. Journal of Geophysical Research-Oceans Feb 4, Volume: 109, Issue: C2 p.: - (2004) Doi 10.1029/2002jc001743
Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century, Rayner, N. A.; Parker, D. E.; Horton, E. B.; Folland, C. K.; Alexander, L. V.; Rowell, D. P.; Kent, E. C.; Kaplan, A. Journal of Geophysical Research-Atmospheres Jul 17, Volume: 108, Issue: D14 p.: - (2003) Doi 10.1029/2002jd002670
Reduced space approach to the optimal analysis interpolation of historical marine observations: Accomplishments, difficulties, and prospects, Kaplan, A.; Cane, M. A.; Kushnir, Y. Advances in the Applications of Marine Climatology p.: 199-216 (2003)
Impact of the North Atlantic Oscillation on Middle Eastern climate and streamflow, Cullen, H. M.; Kaplan, A.; Arkin, P. A.; deMenocal, P. B. Climatic Change Nov, Volume: 55, Issue: 3 p.: 315-338 (2002)
Pacific sea surface temperature field reconstruction from coral delta O-18 data using reduced space objective analysis, Evans, M. N.; Kaplan, A.; Cane, M. A. Paleoceanography Feb, Volume: 17, Issue: 1 p.: - (2002) Doi 10.1029/2000pa000590
Support for tropically-driven Pacific decadal variability based on paleoproxy evidence, Evans, M. N.; Cane, M. A.; Schrag, D. P.; Kaplan, A.; Linsley, B. K.; Villalba, R.; Wellington, G. M. Geophysical Research Letters Oct 1, Volume: 28, Issue: 19 p.: 3689-3692 (2001)
Use of data assimilation via linear low-order models for the initialization of El Nino Southern Oscillation predictions, Canizares, R.; Kaplan, A.; Cane, M. A.; Chen, D.; Zebiak, S. E. Journal of Geophysical Research-Oceans Dec 15, Volume: 106, Issue: C12 p.: 30947-30959 (2001)
Bias correction of an ocean-atmosphere coupled model, Chen, D.; Cane, C. M.; Zebiak, S. E.; Canizares, R.; Kaplan, A. Geophysical Research Letters Aug 15, Volume: 27, Issue: 16 p.: 2585-2588 (2000)
Intercomparison of coral oxygen isotope data and historical sea surface temperature (SST): Potential for coral-based SST field reconstructions, Evans, M. N.; Kaplan, A.; Cane, M. A. Paleoceanography Oct, Volume: 15, Issue: 5 p.: 551-563 (2000)
Reduced space optimal interpolation of historical marine sea level pressure: 1854-1992, Kaplan, A.; Kushnir, Y.; Cane, M. A. Journal of Climate Aug 15, Volume: 13, Issue: 16 p.: 2987-3002 (2000)
Eight centuries of North Atlantic Ocean atmosphere variability, Black, D. E.; Peterson, L. C.; Overpeck, J. T.; Kaplan, A.; Evans, M. N.; Kashgarian, M. Science Nov 26, Volume: 286, Issue: 5445 p.: 1709-1713 (1999)
Analyses of global sea surface temperature 1856-1991, Kaplan, A.; Cane, M. A.; Kushnir, Y.; Clement, A. C.; Blumenthal, M. B.; Rajagopalan, B. Journal of Geophysical Research-Oceans Aug 15, Volume: 103, Issue: C9 p.: 18567-18589 (1998)
The impact of sea level data assimilation on the Lament model prediction of the 1997/98 El Nino, Chen, D. K.; Cane, M. A.; Zebiak, S. E.; Kaplan, A. Geophysical Research Letters Aug 1, Volume: 25, Issue: 15 p.: 2837-2840 (1998)
Optimal sites for coral-based reconstruction of global sea surface temperature, Evans, M. N.; Kaplan, A.; Cane, M. A. Paleoceanography Oct, Volume: 13, Issue: 5 p.: 502-516 (1998)
Reduced space optimal analysis for historical data sets: 136 years of Atlantic sea surface temperatures, Kaplan, A.; Kushnir, Y.; Cane, M. A.; Blumenthal, M. B. Journal of Geophysical Research-Oceans Dec 15, Volume: 102, Issue: C13 p.: 27835-27860 (1997)
Twentieth-century sea surface temperature trends, Cane, M. A.; Clement, A. C.; Kaplan, A.; Kushnir, Y.; Pozdnyakov, D.; Seager, R.; Zebiak, S. E.; Murtugudde, R. Science Feb 14, Volume: 275, Issue: 5302 p.: 957-960 (1997)
Mapping tropical Pacific sea level: Data assimilation via a reduced state space Kalman filter, Cane, M. A.; Kaplan, A.; Miller, R. N.; Tang, B. Y.; Hackert, E. C.; Busalacchi, A. J. Journal of Geophysical Research-Oceans Oct 15, Volume: 101, Issue: C10 p.: 22599-22617 (1996)
Sea level from temperature profiles in the tropical Pacific Ocean, 1975-1982, Reverdin, G.; Kaplan, A.; Cane, M. A. Journal of Geophysical Research-Oceans Aug 15, Volume: 101, Issue: C8 p.: 18105-18119 (1996)
Peter Schlosser
Personal Information
Peter
Schlosser
Professor
Earth and Environmental Sciences
Geochemistry
Vinton Professor of Earth and Environmental Engineering
Earth and Environmental Sciences
Contact Information
139 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8707

Fax: 

(845) 365-8176

Fields of interest: 

Aqueous Geochemistry, Physical Oceanography, Climate, Contaminant Transport.

My research focuses on the application of noble gases and other isotopes to natural systems with emphasis on the oceans and groundwater. My research is directed to understanding the natural state of these water bodies, the human perturbation of the natural state, and the possibility to design engineering solutions to the problems caused by human impact. The problems we are working on range from basic studies of circulation patterns of water in the ocean and groundwater flow systems to the variability of the oceanic circulation under natural and anthropogenically forced conditions or the transport and transformation of contaminants. Other projects include paleoclimate and paleocirculation studies.

For most of our studies, we use trace substances of natural or anthropogenic origin (isotopes or chemical compounds). In some cases we follow the penetration of such substances into the water bodies of interests in a fashion that is similar to dye experiments, but on a much larger scale. In other cases, we use combinations of isotopes as ?radioactive clocks? (e.g., tritium, the radioactive isotope of hydrogen, and its decay product, the noble gas isotope 3He). In some cases, we deliberately inject small amounts of inert trace gases into specific water bodies (e.g., the Hudson River) and study their spreading and mixing. Such experiments provide the closest analogues to the spreading of contaminants in the environment.

In many cases, we combine our experimental work with modeling studies to understand the underlying physics of the circulation or to explore predictability. Modeling studies also provide insight into management options for certain water bodies.

Some of my projects include:

  • World Ocean Circulation Experiment ( details )
  • Hudson River Research ( details )
  • Groundwater studies ( details )
Education
Ph.D.
Heidelberg
1985
Selected Publications:
Decrease of river runoff in the upper waters of the Eurasian Basin, Arctic Ocean, between 1991 and 1996: Evidence from delta O-18 data, Schlosser, P.; Newton, R.; Ekwurzel, B.; Khatiwala, S.; Mortlock, R.; Fairbanks, R. Geophysical Research Letters May 1, Volume: 29, Issue: 9 p.: - (2002) Doi 10.1029/2001gl013135
Determination of longitudinal dispersion coefficient and net advection in the tidal Hudson River with a large-scale, high resolution SF6 tracer release experiment, Ho, D. T.; Schlosser, P.; Caplow, T. Environmental Science & Technology Aug 1, Volume: 36, Issue: 15 p.: 3234-3241 (2002) UNSP ES015814+
Excess helium and neon in the southeast Pacific: Tracers for glacial meltwater, Hohmann, R.; Schlosser, P.; Jacobs, S.; Ludin, A.; Weppernig, R. Journal of Geophysical Research-Oceans Nov, Volume: 107, Issue: C11 p.: - (2002) Doi 10.1029/2000jc000378