Publication: Glacier evolution in the South West slope of Nevado Coropuna (Cordillera Ampato, Perú)
Loading...
Official URL
Full text at PDC
Publication Date
2012-06-21
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Citations
Exportar
Abstract
Glaciers not only reveal information about climate change, they are very important as a water supply for the population who is living around, this implies a risk, glacial hazards and risk associated with glacier retreat, such as ice avalanches, new glacier lake formation and glacial lake outburst floods (GLOF), constitute a major cause of severe catastrophes in populated mountain areas (Huggel et al., 2004). The management of these risks is a complex task involving analysis, evaluation, and communication as well as prevention and mitigation (Greminger 2003). The investigation and monitoring of the glaciers makes them valuable for climate research, and their future evolution can be predicted. The aim of this project was to reconstruct the glacial phases in the SW slope of Nevado Coropuna in order to generate quantitative information of surface areas and ELAs as a first step for the analysis of glacier evolution and the achievement of valuable information of the changes that have happened. The specific conclusions of the present study are: (1): Moraines on the SW slope of Nevado Coropuna served as the reference to reconstruct the geometry of paleo-glaciers in LLGM glacial phase. Modern glaciers from 1955 and 2007 were also delimited using aerial photographs for 1955 glaciers and Google Earth image mosaic for 2007 glaciers. (2): The surface areas of the glaciers were calculated from their delimitation. The results indicated that the total surface has retreated 2,3 km2 from 1955 to 2007, this is a reduction of the 21,5% of the glaciated surface. The deglaciation rate is 0,044 km2/year (44.000 m2/year). (3): The ELAs AABR of the glaciers were calculated from their delimitation. The results show an altitudinal shift of the ELA of 13 m from 1955 to 2007 and 984 m from LLGM to 2007. The analysis shows ELA AABR altitudes of 5834 m for actual glaciers (2007), this data match with the results of other authors. (4): Is assumed that ELAs vertical shifts are caused by changes in temperatures. By analyzing the ELAs vertical shift is possible to study the climate change. The temperature shift from LLGM to 2007 in the NW slope of Nevado Coropuna was 8,26ºC/km (0,0082ºC/m).
Description
UCM subjects
Unesco subjects
Keywords
Citation
Alcalá, J., Palacios, D., Zamorano, J.J. and Vázquez-Selem, L. (2011). Last Glacial Maximum and deglaciation of Ampato volcanic complex, Southern Peru. Rev. C. & G., 25 (1-2), 121-136.
Benn, D.I., Gemmell, A.M.D. (1997). Calculating equilibrium-line altitudes of former glaciers by the balance ratio method: a new computer spreadsheet Glacial Geology and Geomorphology.
Benn, D. I., Owen, L. A., Osmaston, H. A., Seltzer, G. O., Porterd, S. C. and Mark, B. (2005). Reconstruction of equilibrium-line altitudes for tropical and sub-tropical glaciers. Quaternary International 138–139, 8–21.
Bromley G.R.M., Schaefer J.M., Winckler, G., Hall, B.L., Todd, C.E. & Rademaker D.K. M. (2009). Relative timing of last glacial maximum and late-glacial events in the central tropical Andes. Quaternary Science Reviews, 28, 2514-2526.
Bromley G.R.M., Hall, B.L., Schaefer J.M., Winckler, G., Todd, C.E. and Rademaker (2010). Glacier fluctuations in the southern Peruvian Andes during the late-glacial period, constrained with cosmogenic 3He.Journal of Quaternary Science (2011) 26(1) 37–43.
Dornbusch, U. (2002). Pleistocene and present day snowlines rise in the Cordillera Ampato, Western Cordillera, southern Peru (14º25’-15º30’ South). Neues Jahbuch für Geologie und Palaeontologie Abhandlungen, 225, 103-126.
Fell, R. (1994). Landslide risk assessment and acceptable risk. Canadian Geotechnical Journal 31:261–72.
Garreaud R, Vuille M, Clement AC. (2003). The climate of the Altiplano: observed current conditions and mechanisms of past changes. Palaeogeography, Palaeoclimatology, Palaeoecology 194: 5–22.
GFAM-GEM. Cartografía geomorfológica del complejo volcánico Nevado Coropuna (cordillera occidental de los Andes Centrales, sur de Perú)
Giráldez, C. (2011). Glacier evolution in the South West slope of Nevado Hualcán (Cordillera Blanca, Perú). Master Thesis. Universidad Complutense de Madrid
Glaciers of South America, (1998). United States Geological Survey Professional Paper 1386-I.
Glasser, N. F., Clemmens, S., Schnabel, C., Fenton, C. R. and McHargue, L. (2009). Tropical glacier fluctuations in the Cordillera Blanca, Peru between 12.5 and 7.6 ka from cosmogenic 10Be dating. Quaternary Science Reviews, 28, 3448–3458.
Greminger, P. (2003). Managing the risks of natural hazards. In Debris-fl ow hazards mitigation: Mechanics, prediction, and assessment: Proceedings, 3rd International DFHM Conference, Davos, Switzerland, September 10–12, 2003, ed. D. Rickenmann and C. L. Chen, 39–56. Rotterdam: Millpress.
Gubbels TL, Isacks BL, Farrar E. (1993). High-level surfaces, plateau uplift, and foreland development, Bolivian central Andes. Geology 21: 695–698.
Haeberli, W. (2010): Glaciers in an environmental context Part 1: Paleoglaciology. Department of Geography, University of Zurich
Hostetler, S.W., Clark, P.U., (2000). Tropical climate at the Last Glacial Maximum inferred from glacier mass-balance modelling. Science 290, 1747–1750.
Huggel, C., Haeberli, W., Kääb, A., Bieri, D. and Richardson, S: (2004). An assessment procedure for glacial hazards in the Swiss Alps. Canadian Geotechnical Journal, 41, 1068-1083.
Jordan TE, Isacks BL, Allmendinger RW, Brewer JA, Ramos VA, Ando CJ. (1983). Andean tectonics related to geometry of subducted Nazca plate. Geological Society of America Bulletin 94: 341–361.
Kaser G. (2001). Glacier–climate interaction at low latitudes. Journal of Glaciology 47: 195–204.
Kaser G, Osmaston H. (2002). Tropical Glaciers. Cambridge University Press: Cambridge, UK.
Kaser, G. & Osmaston, H., (2002). Tropical Glaciers. International Hydrology Series. Cambridge University Press, Cambridge (U.K.), 207 pp.
Kelly MA, Thompson LG. (2004). 10Be dating of late-glacial moraines near the Cordillera Vilcanota and the Quelccaya Ice Cap, Peru (Abstract PP23A-1388). Eos (Transactions, American Geophysical Union), Fall Meeting Supplement 85 47.
Kennan L. (2000). Large-scale geomorphology of the Andes; interrelationships of tectonics, magmatism and climate. In Geomorphology and Global Tectonics, Summerfield MA, (ed.). Wiley: Chichester; 167–199.
Kessler A, Monheim F. (1968). Der Wasserhaushalt des Titicacasees nach neueren Messergebnissen. Erdkunde 22: 275–283.
Klein, A.G. & Isacks, B.L. (1998). Alpine glacial geomorphological studies inthe Central Andes using Landsat Thematic Mapper images. Glacial Geology and Geomorrphology, rp01/1998.
Mark BG, Seltzer GO, Rodbell DT, Goodman AY. (2002). Rates of deglaciation during the last glaciation and Holocene in the Cordillera Vilcanota-Quelccaya Ice Cap region, southeastern Peru. Quaternary Research 57: 287–298.
Mark, B.G., (2008). Tracing tropical Andean glaciers over space and time: Some lessons and transdisciplinary implications. Global and Planetary Change 60 (2008) 101–114
Mercer JH. (1982). The last glacial–deglacial hemicycle in Peru. American Quaternary Association Conference Abstracts 7: 139.
Ohmura, A., Kasser, P. and Funk, M. (1992). Climate at the equilibrium line of glaciers. Journal of Glaciology, 38, 397-411.
Osmaston, H.A. (2005). Estimates of glacier equilibrium line altitudes by the AreaxAltitude, the AreaxAltitude Balance Ratio and the AreaxAltitude Balance Index methods and their validation. Quaternary International, 138– 139, 22–31.
Paterson, W.S.B., 1994. The Physics of Glaciers, third ed. Pergamon, Oxford 480pp.
Racoviteanu, A.E., Manley, W., Arnaud, Y., Williams, M.W. (2007). Evaluating digital elevation models for glaciologic applications: an example from Nevado Coropuna, Peruvian Andes. Global and Planetary Change 59 (1–4), 110–125.
Rodbell. D.T. (1992). Late Pleistocene equilibrium line reconstructions in the northern Peruvian Andes. Boreas, 21, 43-52.
Rodbell DT, Seltzer GO. (2000). Rapid ice margin fluctuations during the YD in the tropical Andes. Quaternary Research 54: 328–338.
Selzer, G.O. (1994). Climatic interpretation of alpine snowline variations on millenial timescales. Quaternary Research, 41: 154-159.
Smith, J. A., Finkel, R. C., Farber, D. L., Rodbell, D. T. and Seltzer, G. O. (2005). Moraine preservation and boulder erosion in the tropical Andes: interpreting old surface exposure ages in glaciated valleys. J. Quaternary Sci., Vol. 20 pp. 735–758.
Smith, J. A., Mark, B. G. and Rodbell, D. T. (2008). The timing and magnitude of mountain glaciation in the tropical Andes. J. Quaternary Sci., Vol. 23 pp. 609–634.
Solomina, O., Jomelli, V., Kaser, G., Ames, A., Berger, B. and Pouyaud, B. (2007). Lichenometry in the Cordillera Blanca, Peru: “Little Ice Age” moraine chronology. Global and Planetary Change 59 225–235.
Úbeda, J. & Palacios D. (2009) Reconstruction of mass balance of Nevado Coropuna glaciers (Southern Peru) for Late Pleistocene, Little Ice Age and the present. Geophysical Research Abstracts, Vol. 11, EGU2009-7922-2
Úbeda, J., Palacios, D. & Vázquez, L. (2009). Reconstruction of Equilibrium Line Altitudes of Nevado Coropuna Glaciers (Southern Peru) from the Late Pleistocene to the present. Geophysical Research Abstracts, 11, EGU2009-8067-2
Úbeda, J. (2010). El impacto del cambio climático en los glaciares del complejo volcánico Nevado Coropuna (Cordillera Occidental de los Andes Centrales). Universidad Complutense de Madrid.
USGS Volcano Hazards Program. (2007). Lahars and Their Effects. Archived from the original on 2007-08-24. Retrieved 2007-09-02.
Vuille, M., Kaser, G., Juen, I., (2008). Glacier mass balance variability in the Cordillera Blanca, Peru and its relationship with climate and the large-scale circulation. Global and Planetary Change 62 (1–2), 14–28.
Wagnon P, Ribstein P, Francou B, Pouyaud B. (1999). Annual cycle of energy balance of Zongo Glacier, Cordillera Real, Bolivia. Journal of Geophysical Research 104(D4): 3907–3923.
Weibel M, Frangipane-Gysel M, Hunziker JC. (1978). Ein Beitrag zur Vulkanologie Su¨d-Perus. Geologische Rundschau 67: 243–252.
Zech R, Kull C, Kubik PW, Veit H. (2007). LGM and Late Glacial glacier advances in the Cordillera Real and Cochabamba (Bolivia) deduced from 10Be surface exposure dating. Climate of the Past 3: 623– 635.