Variations in the Arctic's multiyear sea ice cover: A neural network analysis of SMMR-SSM/I data, 1979-2004
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Abstract
A 26-year (1979-2004) observational record of January multiyear sea ice distributions, derived from neural network analysis of SMMR-SSM/I passive microwave satellite data, reveals dense and persistent cover in the central Arctic basin surrounded by expansive regions of highly fluctuating interannual cover. Following a decade of quasi equilibrium, precipitous declines in multiyear ice area commenced in 1989 when the Arctic Oscillation shifted to a pronounced positive phase. Although extensive survival of first-year ice during autumn 1996 fully replenished the area of multiyear ice, a subsequent and accelerated decline returned the depletion to record lows. The most dramatic multiyear sea ice declines occurred in the East Siberian, Chukchi, and Beaufort Seas.
Suggested Citation
Belchansky, G., Douglas, D., Eremeev, V., Platonov, N.G., 2005, Variations in the Arctic's multiyear sea ice cover: A neural network analysis of SMMR-SSM/I data, 1979-2004: Geophysical Research Letters, v. 32, no. 9, p. 1-4, https://doi.org/10.1029/2005GL022395.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Variations in the Arctic's multiyear sea ice cover: A neural network analysis of SMMR-SSM/I data, 1979-2004 |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/2005GL022395 |
| Volume | 32 |
| Issue | 9 |
| Publication Date | May 10, 2005 |
| Year Published | 2005 |
| Language | English |
| Publisher | Wiley |
| Contributing office(s) | Alaska Science Center |
| Description | 5 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geophysical Research Letters |
| First page | 1 |
| Last page | 4 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |