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The fieldwork for the Lake Circulation model work was carried out principally during 1996 and 1997 with the outputs available soon afterwards. The three key outputs of this work were: Geochemical tracer work was not carried out under the programme though the other three items requested by LTBP were addressed in the report.

The Report

The reference for this report is Huttula, T. (ed.). 1997. Flow, thermal regime, and sediment transport: Studies in Lake Tanganyika. Kuopio University Publications C. Natural and Environmental Sciences 73. 173 p. - [4.3Mb] and is available.

This published report contains a detailed description of the methodology used and the findings of the study. It contains a flow model and a sediment transport model - the latter was specifically to address the requirements of LTBP.

LTBP reviewed the report and felt it was largely satisfactory and a major step forward in the understanding of the hydrodynamics of Lake Tanganyika. The key criticism is that the model does not consider vertical density differences and therefore cannot trace the fate of components with a variable vertical distribution (such as sediments and dissolved oxygen). As part of the LTBP review of the work a copy of the report was sent to Dr R. Spigel of the University of Canterbury, New Zealand. Spigel is a recognised hydrologist with experience of Lake Tanganyika. His review of the report provided on 12/10/98 is given in Appendix 1 of this document. He provides an overview of the key strengths and weaknesses of the report but overall commends the authors: "They have made use of the best available technology, and have applied it in a challenging environment as successfully as could be expected under very difficult logistical, political and social conditions" A copy of this commentary was send to Timo Huttula (the editor of the report) and his reply is given in Appendix 2. We believe that this discussion would form a solid basis for further work to develop the model.

 
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© 1998 - 2002 Lake Tanganyika Biodiversity Project - UNDP/GEF/RAF/92/G32

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