Ice core data on climate and cosmic ray changes
Ice cores represent archives which contain unique information about a large variety of environmental parameters. Climatic information is stored in the form of stable isotopes, greenhouse gases and various chemical substances. The content of cosmogenic nuclides such as 10 Be and 36 Cl provide long-te...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Report |
| Language: | English |
| Published: |
CERN
2001
|
| Subjects: | |
| Online Access: | http://cds.cern.ch/record/538870 |
| Summary: | Ice cores represent archives which contain unique information about a large variety of environmental parameters. Climatic information is stored in the form of stable isotopes, greenhouse gases and various chemical substances. The content of cosmogenic nuclides such as 10 Be and 36 Cl provide long-term records of the intensity of the cosmic ray flux and its modulation by solar activity and the geomagnetic dipole field. Cosmogenic nuclides are produced by the interaction of cosmic ray particles with the atmosphere. After production, these nuclides are transported and distributed within the environment, depending on their geochemical properties. Some of them are removed from the atmosphere by snow and incorporated into ice sheets and glaciers. The analysis of the Greenlandic ice cores GRIP and GISP2 are discussed in terms of climate and cosmic ray changes during the past 50'000 years. |
|---|