Spatial and temporal variations in the age structure of Arctic sea ice
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Abstract
Spatial and temporal variations in the age structure of Arctic sea ice are investigated using a new reverse chronology algorithm that tracks ice-covered pixels to their location and date of origin based on ice motion and concentration data. The Beaufort Gyre tends to harbor the oldest (>10 years old) sea ice in the western Arctic while direct ice advection pathways toward the Transpolar Drift Stream maintain relatively young (10 years old (10+ year age class) were observed during 1989-2003. Since the mid-1990s, losses to the 10+ year age class lacked compensation by recruitment due to a prior depletion of all mature (6-10 year) age classes. Survival of the 1994 and 1996-1998 sea ice generations reestablished most mature age classes, and thereby the potential to increase extent of the 10+ year age class during the mid-2000s.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Spatial and temporal variations in the age structure of Arctic sea ice |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/2005GL023976 |
| Volume | 32 |
| Issue | 18 |
| Publication Date | September 30, 2005 |
| Year Published | 2005 |
| Language | English |
| Publisher | American Geophysical Union |
| Publisher location | Washington D.C. |
| Contributing office(s) | Alaska Science Center |
| Online Only (Y/N) | Y |
| Additional Online Files (Y/N) | N |