Inhalt des Dokuments
Modeling the interaction of multiple uses, climate
and land-use changes in a bay of Itaparica reservoir, São Francisco
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E., Simshäuser, M., N., Koch, H., Selge, F., Gunkel, G., Rossiter, K.
& Hinkelmann, R.
||Proceedings XXI SBRH Conference, Brasilia, Brazil
water quantity and quality are of high importance in north-eastern
Brazil. Itaparica reservoir in Pernambuco is currently facing serious
ecological problems, due to multiple uses of water, combined with
climate and land use change. In this work the impacts of the eastern
channel of the Transposition Project on the flow field, as well as the
effects of an intense rain event from an intermittent tributary,
combined with the transport of substances, were investigated in
Icò-Mandantes bay, part of Itaparica reservoir. In this regard, high
resolution two-dimensional shallow water models of Icò-Mandantes bay
were set up and applied, considering different discharges and water
levels. The results showed an increase of the velocities in the near
field of the eastern channel, but no significant variations in the
water volume of the whole domain. When a tracer entered the bay
through an intermittent tributary, the exchange processes observed
were slower for a wet scenario, compared to a drought case.