Makshtas A', Maistrova V', Shutilin S',

1
Long-term variability of free atmosphere in the
Polar Regions

• Makshtas A., Maistrova V., Shutilin S.,
• Arctic and Antarctic Research Institute, St.
  Petersburg, Russia
• V. Alexeev
• International Arctic Research Center, UAF, USA

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Contents

• Datasets
• Diagnosis of free atmosphere climate in the
  Arctic and Antarctic
• Climate of free atmosphere in EES Region in
  relation to main climatic indexes
• Surface-based inversions in the Arctic

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Position of sounding stations, which data have
been used in creation of monthly mean datasets
for Northern and Southern Polar Regions (1959
2003)
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Position of polar stations, which data had been
used in ESSS project
.
.
.
.
.
.
.
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Trends of the annual mean air temperature (C/10
years) and mean specific humidity (g/kg/10 years)
in the Arctic atmosphere for 1959-2003
850 ???
???????????
T, 850 ???
?, 400 ???
500 ???
700 ???
?, 50 ???
?, 250 ???
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Temporal-spatial distribution of annual mean
anomalies of air temperature in the North (upper)
and South (bottom) polar regions
7
Estimated from AARI databases trends of air
temperature anomalies in the low stratosphere for
1959 2003 (left) in comparison with model
estimations for 1979 1997 by Ramaswamy
Schwarzkopf, 2002 (right)
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Linear trends of air temperature in the
East-Siberian Region in 1959 -2003
winter
summer
year
850 gPa
500 gPa
50 gPa
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Interannual variability of surface-based
inversion intensity (a) and height (b) in the
Arctic Basin and in Dickson (c, d)
a
b
d
c
10
Linear trends of inversion heights (per year) and
inversion strength, total cloudiness, surface
pressure, and repetition of inversions (per 10
years) in 1960 - 1990