Energy dissipation, runoff production, and the three‐dimensional structure of river basins

Authors:
  • IRIgnacio Rodríguez‐Iturbe
    Ignacio Rodríguez‐Iturbe
  • ARAndrea Rinaldo
    Andrea Rinaldo
  • RBRafael L. Bras
    Rafael L. Bras
  • AMAlessandro Marani
    Alessandro Marani
  • EIEde Ijjász‐Vásquez
    Ede Ijjász‐Vásquez
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Abstract
Three principles of optimal energy expenditure are used to derive the most important structural characteristics observed in drainage networks: (1) the principle of minimum energy expenditure in any link of the network, (2) the principle of equal energy expenditure per unit area of channel anywhere in the network, and (3) the principle of minimum total energy expenditure in the network as a whole. Their joint application results in a unified picture of the most important empirical facts which have been observed in the dynamics of the network and its three‐dimensional structure. They also link the process of runoff production in the basin with the characteristics of the network.

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