Ivanov and Piskun: Distribution of River Water and Suspended Sediment Loads
249
sections. As is seen from Table 6 which presents generalized evidence on the distribution of
water and sediment load discharges in the main arms of the Indigirka delta, the fraction of
suspended matter transported by the main branches approximately corresponds to their water
content.
EAST-SIBE1UAN
SM
~
...
' 39-46 '
1 _ _ _ 1
\ 20-40 I
... ""
,
,
1 100% I
\
I
o
'"
(
'<"
'"
Ill d i (l:/
~
, 8- 10 '
1 _ _ 1
\ 3-6 I
...
""
a range of water runoff (denominator) and
suspended sediment load (numerator)
in the main delta arms (in % of discharges
to the delta) from expedition data;
a range of water runoff to the delta front
from a system of Srednaya and Ularova
branches during the open channel period
(in % of water runoff in the river).
Figure 5: A layout of the channel network of the Indigirka delta.
Conclusion
In conclusion, it should be noted that the studies performed, have shown the use of a complex
of full-scale, model and calculated data to be fruitful for estimates of the water and channel
regime in complicated river delta forks of the Arctic under conditions of complicated river/sea
interaction. Further development of methods is to be directed toward improving calculations of
the sediment load transport as a basis for estimates of transfer of pollutants, their spreading in
the deltas and export to the sea.