Schaefer Cosmo Lab Lamont

Schaefer Cosmo Lab Lamont

Cosmo Lab Lamont

We develop and apply cosmogenic nuclide techniques to address key questions in Climate and Glacier Science, Sea Level change, Quaternary Geology and Extreme Events

Ongoing Research Projects

Mountain Glacier Contribution to Sea Level CE 1900-2100

Providing robust and accurate predictions of mountain glacier melt rates across the globe together with its contribution to Sea Level Rise on the global and local scale, and to evaluate the first order impacts of glacier change on societies. Learn more about the project here

GreenDrill

Read about our project to collect bedrock cores from beneath the Greenland Ice Sheet. These cores will help us determine the last time the Greenland Ice Sheet disappeared.

Full List of Research Projects

We Support JEDI

We believe in Justice, Equity, Diversity and Inclusion in Geosciences, one of the least diverse STEM communities in the US and beyond. We recognize that we failed Sciences and our community over the last decades, and define the JEDI goals as central challenges for our community, for Lamont and for the Cosmo Group. We endorse the Lamont Black Lives Matter-Anti-Racism commitment as well as the Lamont Code of Conduct.

Black Lives Matter

You are welcome here

Recent News

February 17, 2021

Highlight Article: In situ cosmogenic 10Be–14C–26Al measurements from recently deglaciated bedrock as a new tool to decipher changes in Greenland Ice Sheet size

Our recent article, led by Nicolás Young, in Climate of the Past was featured as a highlight article

July 16, 2020

Greenland bedrock drilling project to understand past, future ice sheet melting

Bedrock that lies below the ice sheet could reveal untold secrets about when the ice last retreated, laying the foundation for better models of future sea level rise. Read more

July 16, 2020

UMass Amherst Climate Modeler and Team Will Drill Under Greenland’s Ice Sheet to Date its Last Retreat

Read the feature on our GreenDrill project from UMass Amherst

Publications

Greendrill drilling locations

Greenland rock cores to trace ice's past melting

Summary figure

Greenland was nearly ice-free for extended periods during the Pleistocene

Schaefer, Joerg M.

Finkel, Robert C.

Balco, Greg

Alley, Richard B.

Caffee, Marc W.

Briner, Jason P.

Young, Nicolás E.

Gow, Anthony J.

Schwartz, Roseanne

In situ cosmogenic 10Be–14C–26Al measurements from recently deglaciated bedrock as a new tool to decipher changes in Greenland Ice Sheet size

Young, N.E.

Lesnek, A. J.

Cuzzone, J. K.

Briner, J. P.

Badgeley, J. A.

Balter-Kennedy, A.

Graham, B. L.

Cluett, A.

Lamp, J. L.

Schwartz, R.

Tuna, T.

Bard, E.

Caffee, M. W.

Zimmerman, S. R. H.

Schaefer, J. M.

Geomorphic map. Adapted from Soteres et al. (2020) with newly mapped moraine crests and 34 new 10Be ages. A. Purple dashed lines with italic alphabetical labels demarcate the approximate limits of advances A-D described in past work. B–C. Within the white boxes, mean moraine ages are shown on top (±the standard error of the mean, including the 3% propagated production rate error). Individual samples are shown with their internal error and sample name in black.

The large MIS 4 and long MIS 2 glacier maxima on the southern tip of South America

Carly Peltier

Michael R. Kaplan

Sean D. Birkel

Rodrigo L. Soteres

Esteban A. Sagredo

Juan Carlos Aravena

José Araos

Patricio I. Moreno

Roseanne Schwartz

Joerg M. Schaefer

More Publications

Photos

Landing at our field site in the Canadian Arctic

Sampling boulders on a moraine in the Canadian Arctic

View towards Jakobshavn Isfjord

Sampling bedrock emerging from the retreating Greenland Ice Sheet

Columbia Affiliations

Lamont-Doherty Earth Observatory

Department of Earth and Environmental Sciences

The Earth Institute