Question

Name and discuss the importance of energy dissipation structures in the context of open channel flow. (where they are used and why) please type the answer

Answer 1

We evaluate alternatives for the management of water for agriculture under climate change in six representative basins of Southern Europe .

1. Duero-Douro

2. Ebro

3. Guadalquivir

4. Po

5.  Maritsa-Evros

6. Struma

We focus on water availability for agriculture. For the sake of simplicity, we assume only two types of demands: urban and irrigation. Water is first allocated to urban demands following an established priority; the remaining resources are allocated to agriculture. If water availability does not satisfy all irrigation demands, management measures are applied with the goal of achieving a balance between resources and demands.

These management measures are globally evaluated for the selected basins in three representative climate scenarios, comparing their possible range and effectiveness. Although such measures can significantly increase water availability and counterbalance a portion of water scarcity due to climate change in some basins like Ebro or Struma, in other basins, such as Guadalquivir, water availability cannot be enhanced with management measures and irrigation water use must be reduced.