dc.contributor.author | Walker, P. | |
dc.contributor.author | Smethurst, M.A. | |
dc.coverage.spatial | SNÅSA | |
dc.coverage.spatial | GRONG | |
dc.coverage.spatial | MERÅKER | |
dc.date.accessioned | 2020-07-15T08:35:46Z | |
dc.date.available | 2020-07-15T08:35:46Z | |
dc.date.issued | 1993 | |
dc.identifier.issn | 0800-3416 | |
dc.identifier.uri | https://hdl.handle.net/11250/2666312 | |
dc.description.abstract | Helicopter radiometric data collected over parts of Nord-Trøndelag between 1988 and 1991 have been reprocessed to produce maps of 137Cs fallout resulting from the reactor accident in Chernobyl. Backcalculated data indicate that some parts of Nord-Trøndelag received 137Cs levels in 1986 were one sixth of levels publi- shed for certain areas in the 30 mile exclusion zone around Chernobyl. Four maps at 1:100.000 scale have been produced. Two cover the municipality of Meråker and 2 cover the map sheets Grong and parts of Harran, Overhalla, Snåsa and Snåsavatnet. Each area is covered by a map of cesium counts at helicopter level and a map showing apparent ground concentrations back calculated to 1986. The Meråker cesium map is compared to topographic and quaternary geological maps. The distributions of radio-cesium are found to be consistent with the behaviour as documented in the literature. We demonstrate that airborne mapping is a rapid and cost effective technique for mapping contaminated areas, and that it has potential for monitoring the movement of cesium in the environment following a nuclear accident. | |
dc.language.iso | eng | |
dc.relation.ispartofseries | NGU-Rapport (93.045) | |
dc.rights | Navngivelse 4.0 Internasjonal | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | |
dc.subject | RADIOMETRI | |
dc.subject | HELIKOPTERMÅLING | |
dc.subject | FORURENSNING | |
dc.title | The distribution of 137Cs in the Meråker and Grong/Snåsavatnet Areas | |
dc.type | Report | |
dc.description.localcode | 33016 | |
dc.source.pagenumber | 44 | |