An important parameter for the study of ice-streams is the evaluation of their velocity field: multi-temporal coverage of satellite images allows surface glacier movements to be measured tracking features on the moving glacier surface. Bindschalder and Scambos (1991) have developed and demonstrated a method of numerical cross-correlation for measuring velocities of crevasses and related features on repeated satellite imagery. In the paper we describe the application of the cross-correlation method in Scott Coast (Victoria Land, West Antarctica) and particular for Drygalski Ice Tongue and David Glacier; Landsat images from 1973 to 2001 have been used in this research.
Analysis of multispectral satellite images for ice-streams velocity evaluation / Bitelli G.; Gusella L.; Mancini F.; Pino I.; Vittuari L.. - In: TERRA ANTARTICA REPORTS. - ISSN 1723-7211. - STAMPA. - 14:(2008), pp. 7-10. (Intervento presentato al convegno CONGA 5 (5° CONVEGNO NAZIONALE DI GLACIOLOGIA ANTARTICA) tenutosi a Milano nel 19-21 Ottobre 2005).
Analysis of multispectral satellite images for ice-streams velocity evaluation
BITELLI, GABRIELE;VITTUARI, LUCA
2008
Abstract
An important parameter for the study of ice-streams is the evaluation of their velocity field: multi-temporal coverage of satellite images allows surface glacier movements to be measured tracking features on the moving glacier surface. Bindschalder and Scambos (1991) have developed and demonstrated a method of numerical cross-correlation for measuring velocities of crevasses and related features on repeated satellite imagery. In the paper we describe the application of the cross-correlation method in Scott Coast (Victoria Land, West Antarctica) and particular for Drygalski Ice Tongue and David Glacier; Landsat images from 1973 to 2001 have been used in this research.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
