Radiometric Calibration Facilities
Radiometric surveys have become increasingly
important for mineral exploration and environmental studies,
especially since data quality is improved by modern spectral
processing. The calibration of airborne and ground
instruments, making use of calibration pads and a Dynamic
Calibration Range, is essential to achieve comparable results
in units of ground concentration. Calibration pads are
available at the Eros Airport close to the Geological Survey
The Dynamic Calibration Range is situated close to Henties Bay at the central Namibian coast. The area meets the criteria defined by the IAEA in 1991. The range consists of a flat 2 x
11 km wide area stretching approximately 1 km inland along the coast, that was surveyed on a 100 x 100 m grid using calibrated hand held instruments. A nearby airstrip and the airport
of Swakopmund, 60 km to the south, complete the facilities. Digital data and hardcopy maps of the Dynamic Calibration Range can be made available to all interested parties.
Tsumeb Geophysical Research Station
The Tsumeb Station monitors seismic activity as part of the Global Seismological Network (GSN), funded and operated by the Incorporated Research Institutions for Seismology (IRIS -
a consortium of 80 universities in the USA) in co-operation with the United States Geological Survey
(USGS). A second station will be established in Windhoek shortly.
Other joint research ventures include monitoring magnetic secular variation in co-operation with the Hermanus Observatory, South Africa and neutron emissions in conjunction with the
University of Potchefstroom, South Africa.
A site survey for an Infrasound Station was completed in February 2000 and if suitable a permanent station will be established by the Comprehensive Test Ban Treaty Organisation
(CTBTO), Vienna, Austria.