The International Hydrological Decade Programme in Narssaq river valley, South Greenland

The Hydrological Decade Programme in Narssaq river valley started in 1965. In 1966 and 1967 work was concentrated on establishment of decade stations in order to collect data concerning precipitation, runoff, evapotranspiration and reservoirs. Collection of these basic data is of major importance for the calculation of the water balance and at the end of the summer 1969 these parameters were being investigated as follows: Mean precipitation is to be calculated from 6 precipitation gauges placed in the 33 km2 area according to the topography.