Workshop in Jinja-Uganda
and relevant hydrometric data are essential for supporting
policy and decision making regarding the scare Nile water
resource. As part of its capacity building program, the
project organized a workshop on the use of the Acoustic
Doppler Current Profiler (ADCP) for discharge measurement
from 23 to 27 January 2006 in Jinja, Uganda.
workshop was facilitated by qualified hydrometric professionals
from the Water Resources Management Department in Uganda,
who were previously trained by the project. They took great
pride and pleasure in training their colleagues from Rwanda.
This approach illustrates the project policy to train trainers,
and to build on the skills available in the Nile basin.
By combining the experience and expertise of hydrometric
professionals from all over the basin, a strong regional
user base is built with the aim to reduce the need for outside
measurement of unsteady flows in rivers has been a problem
faced by hydrologists for many years. The classical method
uses a conventional current meter operated from a cableway.
A single measurement for a wide river can take several hours
to complete and the dynamic nature of floods in the sub-tropical
zones imposes a serious time constraint on this method.
ADCP represents a new methodology for measuring discharges
in rivers. The instrument applies the Doppler effect to
calculate flow velocities. Operated from a moving boat or
float, it does not require the establishment of a cableway.
The result is a fast and flexible method for profiling currents
and measuring river flows.
workshop introduced ADCP operating principles and provided
a consistent approach to collecting ADCP discharge data.
Theoretical sessions were alternated with hands-on measurement
exercises in the field.