Other
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....8341k&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #8341
Other
Scientific paper
Transport of heat in the stratosphere by the planetary waves, which is usually referred to as eddy heat flux (HF), attracted a lot of attention in the recent years. Since sources of the planetary waves are in the troposphere, HF in the stratosphere could be regarded as an external forcing. This makes HF very useful proxy for stratospheric temperature and ozone regression models. Here, we investigate some details of the winter long-term and year-to-year variability of HF in the lower and middle stratosphere of the Northern Hemisphere. The investigation of long-term variations of HF during last decades revealed negative trends in the January-February HF and positive trends in the November-December HF. While the negative trend of HF in January and February has already been discussed by other authors, the positive trend in the beginning of the winter was not, to our knowledge, realized. The opposite behavior of the November-December and January-February HF is confirmed by statistically significant negative correlation. Absolute values of the correlation coefficient increase from the lower to middle stratosphere. These results are discussed. Possibility of prediction of the January-February HF from the November-December HF is investigated.
Karpetchko A.
Nikulin Grigory
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