Pavlov and Pavlov: Features of Seasonal and Interannual Vanabilitv ofthe Sea Level
II
em
em
Sumner
Winter
20
Summer
Winter
Mally Taimyr
PnK>l>r.lllt!f1la lsi.
· 20
20
elll
2G em
Summer
Winter
Summer
Winter
·20
Terplay-Tumsa
Dunay Is!.
-20
em
20
Summer
Winter
em
Tlksl
Sannlkova
-20
-20
Figure 5: Seasonal difference of the Laptev Sea level: 1 . barotropic component of the sea level (modeling
result); 2 - baroclinic component of the sea level (modeling result); 3 . summary of I and 2 (modeling result); 4
- observations.
predominantly cyclonic character in the surface layer (Dobrovolsky and Zalogin, 1982; Pavlov
et aI., 1996). This is confirmed by the results of modeling presented in Figure 6.
In winter, currents of western and north-western directions are observed at the surface in the
northern Laptev Sea. This zone is the south-western periphery of the Canadian anticyclonic
gyre. A cyclonic eddy is observed in the central part of the sea. Its intensity increases with
depth.
In the summertime, the cyclonic water circulation of the Laptev Sea increases and an intensive
water inflow from the Kara Sea along the islands of Severnaya Zemlya is observed. Maximum
current speeds of 5-10 cmls are observed at the southern periphery of the cyclonic gyre at the
shelf slope and in the northern part of the sea in the zone of the Transarctic current. In the
shallow south-eastern Laptev Sea the anticyclonic gyre is formed.
Interannual variability of surface level and water circulation in the Laptev Sea
As follows from the analysis of multiyear observations of sea level in the Laptev Sea at coastal
and island stations, there is a steady sea level rise (Figure 7). This is also typical for other
II
em
em
Sumner
Winter
20
Summer
Winter
Mally Taimyr
PnK>l>r.lllt!f1la lsi.
· 20
20
elll
2G em
Summer
Winter
Summer
Winter
·20
Terplay-Tumsa
Dunay Is!.
-20
em
20
Summer
Winter
em
Tlksl
Sannlkova
-20
-20
Figure 5: Seasonal difference of the Laptev Sea level: 1 . barotropic component of the sea level (modeling
result); 2 - baroclinic component of the sea level (modeling result); 3 . summary of I and 2 (modeling result); 4
- observations.
predominantly cyclonic character in the surface layer (Dobrovolsky and Zalogin, 1982; Pavlov
et aI., 1996). This is confirmed by the results of modeling presented in Figure 6.
In winter, currents of western and north-western directions are observed at the surface in the
northern Laptev Sea. This zone is the south-western periphery of the Canadian anticyclonic
gyre. A cyclonic eddy is observed in the central part of the sea. Its intensity increases with
depth.
In the summertime, the cyclonic water circulation of the Laptev Sea increases and an intensive
water inflow from the Kara Sea along the islands of Severnaya Zemlya is observed. Maximum
current speeds of 5-10 cmls are observed at the southern periphery of the cyclonic gyre at the
shelf slope and in the northern part of the sea in the zone of the Transarctic current. In the
shallow south-eastern Laptev Sea the anticyclonic gyre is formed.
Interannual variability of surface level and water circulation in the Laptev Sea
As follows from the analysis of multiyear observations of sea level in the Laptev Sea at coastal
and island stations, there is a steady sea level rise (Figure 7). This is also typical for other