After less than a month in operation, a new NASA satellite has produced the first map showing how saltiness varies across the surface of the world’s oceans. Until now, salt measurements came only from ships, moorings and buoys floating at sea; NASA says its Aquarius satellite will capture in three years as much data as those earlier methods did in 125 years.
polar oceanography

Ocean BGC
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.
Arctic Observing Network: Switchyard Region
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
ICE Bridge
The Ice Sheets at both poles are changing - shrinking at increasing rates - rates that are faster than was ever expected by scientists.
MGDS: MediaBank
The MGDS MediaBank contains high quality images, illustrations, animations and video clips that are organized into galleries.
MGDS: Virtual Ocean - A Visualization Application for Ocean Data
Virtual Ocean integrates the GeoMapApp tool suite and the NASA World Wind 3-D
Polar Climate Group
Research and analysis of the Polar Regions and their impact on global climate.
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MGDS: Global Multi-Resolution Topography (GMRT) - Create Maps and Grids
Make your own maps and custom grids to download from our Global Multi-Resolution Topography (GMRT) database by selecting a geographic region or focus/study site.
MGDS: Marine Geoscience Data System
Unified data portal for the NSF Ridge 2000 program, MARGINS program, Marine Seismic Reflection data, Antarctic Multibeam Bathymetry Synthesis, and RIDGE Multibeam Bathymetry Synthesis; includes Geo
ANZFLUX
The Antarctic Zone Flux Experiment (ANZFLUX) was conducted aboard the R/V Nathaniel B. Palmer in the Eastern Weddell Sea.
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Antarctic Sea Ice Forecast
Antarctic sea ice seasonal forecasts based on a linear Markov model are in high demand for both observational and climate communities. They are provided by Xiaojun Yuan and Dake Chen.
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MGDS: Search For Data
Find, map and download marine geoscience and other data by ship, region, program, investigator, data and more.
Antarctic and Southern Ocean Data Portal
The Antarctic and Southern Ocean Data Portal provides access to geoscience data, primarily marine, from the Antarctic region.
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Southern Ocean Circulation and overturning
The ring of deep water around Antarctica not only links the major ocean [Atlantic/Pacific/Indian] , but also produces dense waters along the continental margins of the frozen continent, which sinks

| Name | Title | Fields of interest | |
|---|---|---|---|
| David Porter | Postdoctoral Research Scientist | ||
| Julius Busecke | Graduate Research Assistant | ||
|
Bruce A. Huber | Senior Staff Associate | |
| William M. Smethie Jr. | Lamont Research Professor | ||
|
Douglas G. Martinson | Lamont Research Professor | Oceans and their role in climate; onset and termination of ice ages. |
| Xiaojun Yuan | Lamont Associate Research Professor | My primary research interest is in the Antarcitc atmosphere, ocean and sea ice/glacial ice fields. |

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October 03, 2011
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June 24, 2011
Stronger ocean currents beneath West Antarctica’s Pine Island Glacier Ice Shelf are eroding the ice from below, speeding the melting of the glacier as a whole, according to a new study in Nature Geoscience. A growing cavity beneath the ice shelf has allowed more warm water to melt the ice, the researchers say—a process that feeds back into the ongoing rise in global sea levels. The glacier is currently sliding into the sea at a clip of four kilometers (2.5 miles) a year, while its ice shelf is melting at about 80 cubic kilometers a year - 50 percent faster than it was in the early 1990s - the paper estimates.


















