Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1, 211-217, 2014
https://doi.org/10.5194/isprsarchives-XL-1-211-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
07 Nov 2014
Assessment of ice-dam collapse by time-lapse photos at the Perito Moreno glacier, Argentina
M. G. Lenzano1, E. Lannutti2, C. K. Toth3, L. E. Lenzano2, and A. Lovecchio2 1Universidad Nacional de Cuyo-CONICET, Mendoza, Argentina
2Depto. de Geomática. IANIGLA-CCT, CONICET, Mendoza, Argentina
3Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Ohio, USA
Keywords: time-lapse, information extraction, ice-dam change, Perito Moreno Abstract. This research provides a feasibility study on the implementation and performance assessment of time-lapse processing of a monoscopic image sequence, acquired by a calibrated camera in the Perito Moreno Glacier in Argentina. The glacier is located at 50°28'23" S, 73°02'10" W at the Parque Nacional Los Glaciares, South Patagonia Icefield, Santa Cruz and has experienced minor fluctuations and unusual behavior since the early 1960's to present. The objective of this study was to determine the evolution and changes in the ice-dam of the Perito Moreno glacier that started on November, 23 2012 and collapsed on January 19, 2013. Two images every 24 hours were acquired since October 2012 until February 2013, a total of 135 days. Image information was supported by ground data. Image and ground data was correlated with a 2D affine transformation. This technique allows the determination of the distortions in the images and estimating the values of scale factors. This, along with an accurate time-lapse interval, has produced accurate data for the analysis. In addition, changes in the level of the Brazo Rico lake were validated with direct data in order to determine the degree of uncertainty in the estimation of changes in the glacier. Based on the calculations, advance rates of the front of the Perito Moreno glacier were estimated at 0.67 m/d ± 0.003 m, and the tunnel evolution was also recorded.
Conference paper (PDF, 774 KB)


Citation: Lenzano, M. G., Lannutti, E., Toth, C. K., Lenzano, L. E., and Lovecchio, A.: Assessment of ice-dam collapse by time-lapse photos at the Perito Moreno glacier, Argentina, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1, 211-217, https://doi.org/10.5194/isprsarchives-XL-1-211-2014, 2014.

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