Evidence for nonlinearity in observed stratospheric circulation changes
The leading mode of variability of the lower atmosphere circulation in the Northern Hemisphere is a largely zonally symmetric mode known as the Arctic Oscillation. We calculate Arctic Oscillation (AO) indices on a range of levels from 1000 to 10 hPa by means of a principal component analysis of Nati...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Blackwell Publishing Ltd
2001
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