DELTA RMS Wave Height
  (m)
Yangtze-Kiang 2.14
Mekong 1.92
Red 1.92
Parana 1.89
Indus 1.84
Magdalena 1.62
Senegal 1.61
Ebro 1.53
Nile 1.53
Po
1.53
Sao Francisco 1.49
Ganges-Brahmaputra 1.42
Godavari 1.42
Irrawaddy 1.42
Tana 1.38
Mississippi 1.27
Klang 1.24
Orinoco 1.19
Niger 1.11
Shatt el Arab 0.99
Ord 0.78
Grijalva 0.64
Burdekin 0.59
Hwang Ho 0.58
Danube 0.51
Volga 0.32
Pechora 0.30
Lena 0.24
Chao Phraya 0.23
Dneiper 0.23
MacKenzie 0.15
Colville 0.07
Sagavanirktok 0.07