Subproject 4 was divided into Subpart 4A, managed by contractor Frank Roth of GFZ and Subpart 4B, managed by associated contractor Páll Einarsson of UICE.DG (see 2.8).
All the tasks of Subpart 4A, Geophysical loggings, have been carried out in accordance with the workprogramme. Main cooperator with GFZ on Subpart 4A was Valgardur Stefánsson from the Icelandic Energy Authority (OS).
Subpart 4B, Radon related to seismicity in the South Iceland seismic zone, was a minor associated part to Subproject 4. One task of Subpart 4B was cost by EC, i.e. Build an improved LSC apparatus to measure the radon content of water and gas samples. For various reasons this task was delayed compared to what was planned in the workprogramme. However, it has now been successfully finalized. However, this delay caused delay in reviving the the radon sampling program in South Iceland within the time limits of PRENLAB. This part of Subpart 4B is cost by Icelandic sources. However, significant research work has been carried out and reported on the available old radon data for the region, and this work creates a good basis for reviving the regular sampling program, which now can start.
Subpart 4B of Subproject 4 has been finalized as concerns EC funding. The delay in reviving the regular radon monitoring in the SISZ has been compensated by significant research work on old radon data.