Polar Oceanography

Centers, Projects & Initiatives

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

ANZFLUX

PI(s): 
Douglas G. Martinson

The Antarctic Zone Flux Experiment (ANZFLUX) was conducted aboard the R/V Nathaniel B. Palmer in the Eastern Weddell Sea.

Website: 
ANZFLUX
Location: 
United States
65° 0' 0" S, 5° 0' 0" W
See map: Google Maps
 

Researchers

Name Title Fields of interest
Laura Stevens Postdoctoral Research Fellow Glaciology, Geophysics, Physical processes driving ice-sheet flow.
Nathan Laxague Postdoctoral Research Scientist Air-sea interaction physics, ocean surface wave dynamics, boundary layer fluid mechanics
Francesco Muschitiello Postdoctoral Research Fellow Paleoclimate, Paleo Hydrology, Paleoceanography, Climate Modelling, Geo-chronologies
Una Miller Graduate Student
William M. Smethie Jr. Special Research Scientist
Sarah Purkey Postdoctoral Research Scientist
David Porter Associate Research Scientist
Julius Busecke Graduate Research Assistant Ocean Salinity, Global Hydrological cycle, Mesoscale Eddies, Mixing, Shallow overturning circulation
Xiaojun Yuan Lamont Research Professor My primary research interest is in the Antarcitc atmosphere, ocean and sea ice/glacial ice fields.
Bruce A. Huber Senior Staff Associate
 

News items

  • Ice & Sea-Level Scientist Maureen Raymo Elected to National Academy of Sciences
    May 03, 2016

    Maureen Raymo, a marine geologist and paleoceanographer whose name is connected with key theories about how ice ages wax and wane and how sea levels change, has been elected to the National Academy of Sciences, one of the highest honors awarded to engineers and scientists in the United States. She is the 11th current scientist from Columbia University’s Lamont-Doherty Earth Observatory invited to join the Academy for their excellence in original scientific work.

  • West Coast or East? Where Greenland's Meltwater Enters the Ocean Matters for Global Climate
    April 25, 2016

    In southern Greenland in summer, rivers have been streaming off the ice sheet, pouring cold fresh water into the fjords. Attention has focused on the West Coast, where the majority of the meltwater has been entering the ocean in recent years, but a new study from Lamont's Marco Tedesco suggests that a greater risk to global climate may actually be coming from the East.

  • Climate Is Changing Fast in West Antarctica
    November 20, 2015

    A snapshot of the changing climate of the West Antarctica Peninsula, where the impact of fast-rising temperatures provides clues about future ecosystem changes elsewhere.

  • New Salt Map of the Seas Gives Scientists a Taste of Discoveries Ahead
    October 03, 2011

    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.

  • Ocean Currents Speed Melting Of Antarctic Ice
    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.

 
 

 

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