Eos, Transactions American Geophysical Union

International hydrological decade



Realization of the vital importance of water led to development of the International Hydrological Decade (IHD) and the subsequent International Hydrological Program (IHP). The increasing importance of water, vital to all life on this planet, can be visualized easily from the estimation that the total world population will increase to 6.5 billion by 2000, with 50% residing in the humid tropics or other warm regions.

The largest increases are predicted in developing countries. In 1963 R. L. Nace and L. J. Tison pointed out that these developing countries would not only need to receive hydrology technology, but also need the education and training to develop the hydrologic specialists to put that technology into practice and thus solve their present and future water problems.