World Meteorological Organization

Authors: World Meteorological Organization (WMO)

The Manual on Stream Gauging (WMO No. 519) was first released in 1980. Since then, however, there have been significant advances both in the approach and the methodologies employed.
Consequently, at its twelfth session (Geneva, October 2004), the WMO Commission for Hydrology (CHy) decided to meet the identified needs of the National Hydrological Services by revising the Manual to include the newer technologies that have been introduced over the period and are currently employed in this crucial field.