SONYA DYHRMAN
Personal Information
Sonya
Dyhrman
Associate Professor
Earth and Environmental Sciences
Biology and Paleo Environment
Contact Information
102E Geoscience
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8165

Fax: 

(845) 365-8163

I am broadly interested in how marine microbes like phytoplankton interact with their geochemical environment, where I use molecular level tools to study the intersection of microbial physiology and biogeochemistry.

Microbial oceanography group members are using a suite of genome-enabled approaches to examine the distribution and activities of marine phytoplankton, and how they influence cycling of carbon, nitrogen and phosphorus. Our work often uses model cultures to understand and bound field observations made on research cruises that span the from polar to tropical systems. This research emphasis provides advanced training for undergraduates, graduate students, and postdoctoral scholars and it is also used as a framework for the development and implementation of inquiry-based educational activities for children.

Education
Ph.D.
Scripps Institution of Oceanography, University of California San Diego
11/1999
B.A.
Dartmouth College
06/1994
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)
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
Nora Mascioli
Personal Information
Nora
Mascioli
Graduate Student
Earth and Environmental Sciences
Ocean and Climate Physics
Contact Information
mascioli.jpg
206A Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8319

Fax: 

(845) 365-8157
Helen Janiszewski
Personal Information
Helen
Janiszewski
Graduate Student
Earth and Environmental Sciences
Seismology Geology and Tectonophysics
Contact Information
201B Seismology
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8462

Fax: 

(845) 365-8150
Selected Publications:
Crustal structure along the Aleutian island arc: New insights from receiver functions constrained by active-source data, Janiszewski, H. A.; Abers, G. A.; Shillington, D. J.; Calkins, J. A. Geochem. Geophys. Geosyst., Volume: 14 p.: 2977–2992 (2013) doi:10.1002/ggge.20211
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
James Gibson
Personal Information
James
Gibson
Graduate Student
Earth and Environmental Sciences
Marine Geology and Geophysics
Contact Information
gibson.jpg
303A Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
(845) 365-8190

Fax: 

(845) 365-8156
Etienne Dunn-Sigouin
Personal Information
Etienne
Dunn-Sigouin
Graduate Student
Earth and Environmental Sciences
Ocean and Climate Physics
Contact Information
206A Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8319

Fax: 

(845) 365-8157

Fields of interest: 

Stratosphere-Troposphere coupling, Wave-mean flow interaction, Mid-latitude climate variability

My research uses observations, idealized and state-of-the-art global climate models to understand the dynamics of the large-scale mid-latitude circulation and its role in climate. 

In particular, I study how the stratosphere couples with the troposphere via planetary scale waves. The coupling directly impacts the North Atlantic Oscillation (NAO) and the variability of the North-Atlantic jet stream.

I also work on understanding the dynamics of anomalous mid-latitude weather patterns called blocking, persistent high-pressure systems linked to extreme weather such as droughts and cold-snaps, and their representation in global climate models.

Natalie Accardo
Personal Information
Natalie
Accardo
Graduate Student
Earth and Environmental Sciences
Seismology Geology and Tectonophysics
Contact Information
201E Seismology
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(502) 291-0280

Fax: 

(845) 365-8150

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