Skip to main content

Menu

Login

Explore more of Isaaffik

Collaborative Research: Investigating the potential of carbon-14 in polar firn and ice as a tracer of past cosmic ray flux and an absolute dating tool

General

Project start
01.01.2012
Project end
31.12.2016
Type of project
ARMAP/NSF
Project theme
Space physics
Project topic
Cryosphere
Meteorlogy
Space physics

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, Mid-West
Fieldwork location

Geolocation is 67.0179977417, -50.69400024414

Fieldwork start
04.05.2013
Fieldwork end
08.06.2013

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 72.661667, -38.575

Fieldwork start
08.05.2013
Fieldwork end
04.06.2013

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 72.57, -38.48

Fieldwork start
06.05.2013
Fieldwork end
06.06.2013

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, Mid-West
Fieldwork location

Geolocation is 67.0179977417, -50.69400024414

Fieldwork start
02.06.2014
Fieldwork end
30.06.2014

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 72.661667, -38.575

Fieldwork start
04.06.2014
Fieldwork end
27.06.2014

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 72.57, -38.48

Fieldwork start
04.06.2014
Fieldwork end
28.06.2014

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, Mid-West
Fieldwork location

Geolocation is 67.0179977417, -50.69400024414

Fieldwork start
29.05.2015
Fieldwork end
01.07.2015

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 72.661667, -38.575

Fieldwork start
03.06.2015
Fieldwork end
28.06.2015

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 72.57, -38.48

Fieldwork start
01.06.2015
Fieldwork end
03.06.2015

SAR information

Project details

02.09.2019
Science / project plan

.

Science / project summary
This grant will investigate the potential of carbon-14 in ice cores as an absolute dating tool, as a tracer of the past cosmic ray flux and as a recorder of the past fossil fraction of the global methane budget. Cosmic ray particles produce carbon-14 from oxygen-16 directly within near-surface glacial ice and firn. This in-situ produced carbon-14 quickly reacts to form 14C-containing carbon dioxide, carbon monoxide, and methane in the ice matrix. Some or all of the resulting 14C-bearing gases may be lost from the firn to the atmosphere. This research will provide a thorough characterization of in-situ cosmogenic 14C in glacial firn and shallow ice in the Summit region of Greenland. It will examine the retention of cosmogenic 14C in ice grains at all depth levels in the firn column, the partitioning of 14C between carbon dioxide, carbon monoxide, and methane, as well as the production rates and accumulation of cosmogenic 14C in shallow ice below firn close-off. This project will establish a new international collaboration between University of Rochester (UR) and University of Bern and result in novel laboratory and field analytical systems. The data from the study will be made available to the scientific community and the broad public through the ACADIS data service. One graduate student will be trained at UR, and one postdoc and one graduate student will be partially supported at Oregon State University. Three UR undergraduates will be involved in fieldwork and research. The work will support an early career scientist. All of the investigators will continue to participate in public outreach.
Close