biogeochemistry

Ocean BGC

PI(s):

Raymond N. Sambrotto

This page contains information on the research activities in R. Sambrotto's Lab. at Lamont-Doherty. Its covers the people involved and the analytical work we do on the biogeochemistry of oceans and estuaries. It includes the analytical capabilities available to outside users as well as information and protocols for people working in the lab.

Website:

oceanbgc

Arctic Observing Network: Switchyard Region

PI(s):

Peter Schlosser

PI(s):

William M. Smethie Jr.

PI(s):

Dale N. Chayes

The proposed research will document the circulation, variability, and driving mechanisms of the upper ocean in the “freshwater switchyard of the Arctic Ocean.” This unexplored reg

Website:

Arctic Observing Network: Switchyard Region

A Day in the Life of the Hudson River: Snapshot Day

PI(s):

Margie Turrin

In this annual fall event school groups all along the Hudson River estuary go down to the river's edge to collect scientific information and share it to creat

Website:

A Day in the Life of the Hudson River:Snapshot Day

Ocean Carbon Cycle Research

PI(s):

Samar P. Khatiwala

How much CO₂ from human activity enters the ocean?

Website:

Ocean Carbon Cycle Research

Abrupt Tropical Responses to Gradual Insolation Forcing

PI(s):

Peter B. deMenocal

A detailed (ca. 100 yr resolution) and well-dated (31 AMS 14C dates to 24 cal.

Website:

Abrupt Tropical Responses to Gradual Insolation Forcing

Paleoecology Laboratory

PI(s):

Dorothy M. Peteet

Describes global research using vegetation shifts to reconstruct local and regional changes in the landscape due to climate and/or anthropogenic influence.

Website:

Paleoecology Laboratory

Torrey Plant Physiology Lab

PI(s):

Kevin L. Griffin

The Ecophysiology group studies the physiological mechanisms underlying plant responses to environmental conditions and the influence these responses have on ecological pa

Website:

Torrey Plant Physiology Lab

African Climate and Human Evolution

PI(s):

Peter B. deMenocal

Environmental hypotheses of African faunal evolution propose that major faunal speciation, extinction, and innovation events during the Pliocene-Pleistocene were mediated by

Website:

African Climate and Human Evolution

Location

United States

8° 42' 40.8924" N, 39° 51' 30.2328" E

See map: Google Maps

Name	Title	Fields of interest
Kevin Uno	Postdoctoral Research Scientist	My primary research interest is in reconstructing ancient terrestrial ecosystems using light stable isotopes (H, C, N, & O) and other geochemical tools. I also employ these tools to study modern ecosystems in East Africa.
Solange Duhamel	Lamont Assistant Research Professor	Role of microorganisms as agents of biogeochemical transformations, and the reciprocal role of nutrients availability, in particular phosphorus (P), on the distribution, growth and productivity of microplankton
Nigel D'Souza	Postdoctoral Research Scientist	I am interested in studying the impacts of natural and anthropogenic events on microbial communities in aquatic ecosystems – and eventually, the consequences of changes in microbial communities on other organisms and processes. My work at LDEO involves studying the impacts of oil and natural gas inputs on the microbial and planktonic community in the Gulf of Mexico, focusing on changes in community composition, activity, and fate of the organisms.
Pratigya Polissar	Lamont Assistant Research Professor
Dorothy M. Peteet	Adjunct Senior Research Scientist	Paleoclimate, paleoecology, climate modeling, wetland carbon storage, palynology.
Kevin L. Griffin	Professor	Plant respiration; global carbon cycle; forest ecology
Kevin Anchukaitis	Adjunct Associate Research Scientist	paleoclimatology, dendroclimatology, tropical dendrochronology, stable isotope biogeochemistry, climate field reconstruction and statistics, forward modeling
O. Roger Anderson	Adjunct Senior Research Scientist	Physiological Ecology of Eukaryotic Microbes in aquatic and terrestrial environments
Peter B. deMenocal	Professor	Paleoceanography and Paleoclimatology
Paul E. Olsen	Arthur D. Storke Memorial Professor	paleontology, stratigraphy, Evolution of continental ecosystems (climate change, mass extinctions)
Raymond N. Sambrotto	Lamont Associate Research Professor
Samar P. Khatiwala	Lamont Associate Research Professor
Veronica P. Lance	Adjunct Associate Research Scientist	Biological Oceanography and Ocean Biogeochemistry

Tundra, Microbes and World Climate

January 26, 2010

O. Roger Anderson is a microbiologist at Lamont-Doherty Earth Observatory who studies bacteria, amoebas, fungi and other microorganisms. Lately he has been thinking about how tiny organisms that inhabit the vast northern tundra regions could contribute to changing climate, since, like humans, they breathe in oxygen and breathe out carbon dioxide.
Oceans' Uptake of Manmade Carbon May Be Slowing

November 16, 2009

The oceans play a key role in regulating climate, absorbing more than a quarter of the carbon dioxide that humans put into the air. Now, the first year-by-year accounting of this mechanism during the industrial era suggests the oceans are struggling to keep up with rising emissions...


	The Role of Lipids in the Response to Phosphorus Limitation by Phytoplankton	Earth Science Colloquium
	Oxygen in the Ocean	Dynamics, Trends and New Observational Approaches
	Chlorophyll as the measure of phytoplankton biomass: Time to move on	Earth Science Colloquium
	Climate and Culture Research	at Lamont Doherty Earth Observatory
	New York's Piermont Marsh	A 7,000-year Archive of Climate Change, Human Impact and Uncovered Mysteries
	Climate is Changing Our Forests and Plants	New Evidence from Alaska and Our Own Backyard
	African Climate Changes and Human Evolution	Public Lecture, 2004