Hydrographic region

Elasticity

Solimões

0.84

Negro

0.54

Madeira

0.83

Xingu

0.91

Tapajós

1.04

Northern Amazon

0.73

Tocantins

1.50

Maranhão

1.51

Parnaíba

9.79

Northeast Atlantic

4.15

São Francisco

4.52

East Atlantic

8.25

Southeast Atlantic

1.10

South Atlantic

1.48

Uruguay

2.31

Parana

1.39

Paraguay

1.58