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Recent recovery of the Siberian High intensity

Jeong, Jee-Hoon; Ou, TH; Linderholm, Hans; Kim, B.-M.; Kim, S.-J.; Kug, J.-S. and Chen, Deliang (2011) In Journal of Geophysical Research: Atmospheres 116. p.23102-23102
Abstract
This study highlights the fast recovery of the wintertime Siberian High intensity (SHI) over the last two decades. The SHI showed a marked weakening trend from the 1970s to 1980s, leading to unprecedented low SHI in the early 1990s according to most observational data sets. This salient declining SHI trend, however, was sharply replaced by a fast recovery over the last two decades. Since the declining SHI trend has been considered as one of the plausible consequences of climate warming, the recent SHI recovery seemingly contradicts the continuous progression of climate warming in the Northern Hemisphere. We suggest that alleviated surface warming and decreased atmospheric stability in the central Siberia region, associated with an increase... (More)
This study highlights the fast recovery of the wintertime Siberian High intensity (SHI) over the last two decades. The SHI showed a marked weakening trend from the 1970s to 1980s, leading to unprecedented low SHI in the early 1990s according to most observational data sets. This salient declining SHI trend, however, was sharply replaced by a fast recovery over the last two decades. Since the declining SHI trend has been considered as one of the plausible consequences of climate warming, the recent SHI recovery seemingly contradicts the continuous progression of climate warming in the Northern Hemisphere. We suggest that alleviated surface warming and decreased atmospheric stability in the central Siberia region, associated with an increase in Eurasian snow cover, in the recent two decades contributed to this rather unexpected SHI recovery. The prominent SHI change, however, is not reproduced by general circulation model (GCM) simulations used in the IPCC AR4. The GCMs indicate the steady weakening of the SHI for the entire 21st century, which is found to be associated with a decreasing Eurasian snow cover in the simulations. An improvement in predicting the future climate change in regional scale is desirable. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Geophysical Research: Atmospheres
volume
116
pages
23102 - 23102
publisher
Wiley-Blackwell
external identifiers
  • scopus:82955177015
ISSN
2169-8996
DOI
10.1029/2011JD015904
project
BECC
language
English
LU publication?
no
id
96f69f97-e450-4d4a-8194-e01b0c01de84 (old id 4448515)
date added to LUP
2014-05-23 12:11:13
date last changed
2017-09-24 03:09:30
@article{96f69f97-e450-4d4a-8194-e01b0c01de84,
  abstract     = {This study highlights the fast recovery of the wintertime Siberian High intensity (SHI) over the last two decades. The SHI showed a marked weakening trend from the 1970s to 1980s, leading to unprecedented low SHI in the early 1990s according to most observational data sets. This salient declining SHI trend, however, was sharply replaced by a fast recovery over the last two decades. Since the declining SHI trend has been considered as one of the plausible consequences of climate warming, the recent SHI recovery seemingly contradicts the continuous progression of climate warming in the Northern Hemisphere. We suggest that alleviated surface warming and decreased atmospheric stability in the central Siberia region, associated with an increase in Eurasian snow cover, in the recent two decades contributed to this rather unexpected SHI recovery. The prominent SHI change, however, is not reproduced by general circulation model (GCM) simulations used in the IPCC AR4. The GCMs indicate the steady weakening of the SHI for the entire 21st century, which is found to be associated with a decreasing Eurasian snow cover in the simulations. An improvement in predicting the future climate change in regional scale is desirable.},
  author       = {Jeong, Jee-Hoon and Ou, TH and Linderholm, Hans and Kim, B.-M. and Kim, S.-J. and Kug, J.-S. and Chen, Deliang},
  issn         = {2169-8996},
  language     = {eng},
  pages        = {23102--23102},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Geophysical Research: Atmospheres},
  title        = {Recent recovery of the Siberian High intensity},
  url          = {http://dx.doi.org/10.1029/2011JD015904},
  volume       = {116},
  year         = {2011},
}