Jobs:Job-01050
Apply before: 24 October 2019
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Posting:
Position: Two PhD students (4 years each) and a field technician
Apply before: 24 October 2019
See attached file:
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The project aims to quantify:
- how and over what timescales marginal zones of glaciers regulate the export of glacially-eroded sediment to their forefields, for both bedload and suspended load; and
- how proglacial forefields modify this glacier-originating signal to influence downstream sediment yield.
The results will be used to determine; (a) the timescales over which glacier sediment export can be used to infer glacial erosion rates; (b) how proglacial margins filter glacial sediment export to determine basin sediment yield, and (c) how proglacial forefield morphodynamics evolve as glaciers retreat, so impacting frequencies of forefield disturbance and embryonic ecosystem development.
The project will use both field data collection and computational modelling. Field data will be collected for the forefield of a representative temperate Alpine valley glacier, Glacier d’Otemma, in South-West Switzerland. Data collection will include testing new ways of tracing sediment movement through the margins of valley glaciers using intelligent particles as well as more standard monitoring of hydrology and sediment transport using stage recorders, acoustic pipe samplers and turbidity records. Such data will be combined with geophysical data from the glacier margin to quantify the geometry of subglacial channels and the glacier bed. In the proglacial forefield, UAV systems will be used to quantify sub-daily stream morphodynamics and grain size variability. Computational modelling will seek to develop both a treatment for subglacial glacier margin sediment transport and to modify the HSTAR model of Andrew Nicholas for multiple grain sizes to describe proglacial stream morphodynamics. The models will be used to simulate different combinations of glacial hydrology and forefield geometry and slope to generalize findings to a larger number of cases.
The project is supported by two PhD students (4 years each) and a field technician to support data collection and archiving (two years). One PhD position has been filled and they will address question 2 above. We are now seeking to appoint a second PhD student (100% engagement, 4 years) to address the first question (glacier margin regulation of sediment export) and the project technician (100% engagement, 2 years). A suitable candidate for the project technician position, provided they are eligible according to University of Lausanne PhD admission rules, may be considered for cantonal PhD funding after the end of their two-year engagement on this project.
The PhD appointment will be on the Swiss National Science Foundation salary scale (CHF 47’040 rising to CHF 48’540 in the second year and CHF 50’040 in the third and fourth years). An additional teaching/research assistantship will be made available (CHF9’000 per year).
The technician will be appointed as a Junior Researcher on the Swiss National Science Foundation salary scale (CHF 69’908 Year 1, CHF 71’964 Year 2). Both appointments give access to tier 1 and tier 2 pension provision in the Swiss system.
See File:Glacier recession job ad.pdffor more information]]
