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Dissertation Presentation

a presentation on my dissertation subject for BSC Geography
by

George Steele

on 16 November 2012

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Transcript of Dissertation Presentation

George Adam Steele Why the Miage Glacier? The study area Research aim Research questions Can Foster’s Et al (2009) application of remote sensing for mapping debris-covered glaciers be successfully applied without the use of a Digital Elevation Model? How does debris-cover change throughout the glacier? Can the change be assessed remotely? To establish and compare the most successful remote sensing techniques, that allow for debris-covered glaciers to be mapped and measured remotely, in a variety of locations. 11Km2 (Benn et al 2005) 5Km2 Debris covered Accessible and within budget Garmin 60CSx GPS Trace the glacial outlines and moraines Geo reference, transect images Finding our way back to the campsite!! 1m2 Quadrat Scale reference Debris cover change via transects Miage Glacier, Northern Italian Alps Dr Benjamin Brock Fieldwork References Benn, D.I., D'agata, C., Diolaiuti, G,. Kirkbride, MP., Nicholson, L. and Smiraglia, C. (2005). Calving processes and lake evolution at Miage glacier,. Annals of Glaciology. 40 , 207-214.

Foster, L., Brock, B.W. and Cutler, M.E.J. 2009. Monitoring changes in debris cover extent on Miage glacier, Italian Alps 1975-2006 using optical and thermal satellite imagery. 33rd International Symposium on Remote Sensing of Environment, May 4 – 8, 2009, Stresa, Italy.

Paul. F, Andreassen. L.M. (2009). A new glacier inventory for the Svartisen region, Norway. Journal of Glaciology. 55 (192), 607-618.

Ranzi, R., Grossi, G., Iacovelli, L. & Taschner, T. 2004. Use of multispectral ASTER images for mapping debris-covered glaciers within the GLIMS Project. IEEE International Geoscience and Remote Sensing Symposium Vol. II, 1144–1147.

Haeberli, W., Frauenfelder, R., Hoelzle, M., & Maisch, M. (1999). Rates and acceleration trends of global glacier mass changes. Geografiska Annaler, 81A, 585–591.

Svoboda. F, paul. F. (2009). A new glacier inventory on southern Baffin Island, Canada, Annals of Glaciology. 50 (53), 11-21. Getting lost on the Miage Glacier using remote sensing and GIS preliminary data Landsat 5 30m pixel size 14/09/2003 0% cloud NDVI = (infrared-red)/(infrared+red) Green vegetation +0.7
Water/barren lands -0.3 False colour composite, 345 Literature
Research aim
Study area
Field work
Methodology
Preliminary data
Timeline GLIMS- Global Land Ice
measurements from Space project What about Debris covered glaciers? Literature Overview Project to monitor the worlds changing glaciers mountain glaciers, one of the most natural indicators of climate change NDVI has been used by Paul et al (2004) to help map the vegetation surrounding the glacier

Ranzi et al (2004) recognized a reduction in which thermal was effective (0.5m) on the Miage Glacier
Areas close to the terminus where periglacial debris was 1m+ thick showed higher temperatures
Also applied a field study for glacier outlines (Foster Et al 2009; Haeberli et al 1999; Paul et al 2004; Svoboda & Paul 2009) METHODOLOGY NDVI

Thermal Band

seasonal images

Radar

application to Similar Glaciers steps outlined by Foster et al (2009) and Paul et al (2009) projected completion dates 07/2012 2/2013 12/2012 Foster's et al (2009) 4 steps complete
NDVI
spectral classifications a developed methodolgy
Application to...
Ngozumpa glacier, Nepal
suitable maps
flow Diagram with figures Foster, L., Brock, B.W. and Cutler, M.E.J. 2009. Monitoring changes in debris cover extent on Miage glacier, Italian Alps 1975-2006 using optical and thermal satellite imagery. 33rd International Symposium on Remote Sensing of Environment, May 4 – 8, 2009, Stresa, Italy. Spectral similarity between the Debris layer and surrounding environment No fully implemented methodology for Remote
sensing of Debris covered glaciers Foster et al (2009) used a semi automated approach where a higher quality digital elevation model to extract out Debris slopes manual delineation of 167 glaciers by Paul & Andreassen (2009)
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