Where is the mud coming from? Radionuclides and GIS: partners in sediment budgeting
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Date
2012-10-17
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Nuclear Science and Technology Organisation
Abstract
Radionuclides are often used in sediment studies, but rarely are they paired with Remote Sensing and Geographic Information Systems (GIS). The two used together provide a useful holistic research tool, radionuclides Pb-210, Cs-137 and Pu-239+240 indicate the relative contribution of topsoil and subsoil to sediments, while remote sensing and GIS indicate the location of sediment sources. This method is trialed on the Kambaniru River Catchment in East Sumba, Indonesia. The Kambaniru Weir is an important source of agricultural water for rice production in the poorest region of Indonesia. This weir and many others in the region are rapidly filling with sediment, impacting on agricultural production. To reduce sediment loads it is essential to understand sediment sources. This is also the first reported application of Pu 239+240 as a topsoil tracer in
Indonesia with promising preliminary results indicating a strong correlation between Pu239+240 and Cs-137 concentrations.
Description
In the article Heijnis is spelt incorrectly as Heinjis. The citation notes it as Sic.
Keywords
Radioactivity, Sediments, Remote sensing, Geographic information systems, Lead 210, Cesium 137, Indonesia, Rivers, Ecological concentration
Citation
Hobgen, S., Child, D. P., Heinjis, (sic) H., & Hotchkis, M. A. C. (2012). Where is the mud coming from? Radionuclides and GIS: partners in sediment budgeting. Paper presented to the 12th South Pacific Environmental Radioactivity Association Conference (SPERA 2012), Sydney, Australia, Tuesday 16 October – Friday 19 October 2012. Lucas Heights, NSW: Australian Nuclear Science and Technology Organisation. (pp. 34).