Mr Julian Martin

Supervised by

Research interests

My research interests focus on reconstructing the timing and extent of past glacier advance and recession and improving our understanding of what drove such events. Specifically, through a combination of geomorphological mapping, cosmogenic nuclide surface exposure dating, and glacier modelling, it is possible to determine the controls of glacier mass balance and improve our understanding of how major atmospheric systems have changed in the past.  

 

Current research

Constraining the influence of the Southern Hemisphere Westerlies on the past, present and future behaviour of the Monte San Lorenzo ice cap, Patagonia

The Southern Hemisphere Westerlies (SHW) are a key part of the southern-hemisphere ocean-climate system. Due to their influence on precipitation in southern South America, their latitudinal migration on millennial timescales is hypothesised to control glacier dynamics the region. By studying past fluctuations of glaciers at the Monte San Lorenzo ice cap, which sits to the east of the Patagonian Andes and is therefore particularly sensitive to precipitation changes, this study aims to improve our understanding of the climatic factors controlling glacier change, and the past fluctuations in the position and intensity of the dynamic SHW wind system.

To constrain the timing and rate of deglaciation at the Monte San Lorenzo ice cap, this study uses remote sensing and field geomorphological mapping, combined with cosmogenic nuclide surface exposure dating of glacially transported boulders to produce a chronology of glacier recession. Using a one dimensional glacier flowline model, constrained by this chronology, this study aims to determine the climatic factors which controlled this recession and the timing and degree of changes in the SHW through the late Pleistocene and Holocene. 

Educational background

2015-2019 PhD (Quaternary Science), Department of Geography, Royal Holloway University of London

2010-2014 MSci Geology, Department of Earth Science and Engineering, Imperial College London

Teaching

Remote sensing and GIS - 1st, 2nd and 3rd year undergraduate

Southern Spain field course - 1st year undergraduate

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