IANIGLA   20881
INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
artículos
Título:
Rock glacier inventory of the Valles Calchaquíes region (~25º S), Salta, Argentina, derived from ALOS data
Autor/es:
DANIEL FALASCHI; MARIANO CASTRO; MARIANO MASIOKAS; TAKEO TADONO; ANA LIA AHUMADA
Revista:
PERMAFROST AND PERIGLACIAL PROCESSES
Editorial:
JOHN WILEY & SONS LTD
Referencias:
Lugar: Londres; Año: 2014 vol. 25 p. 69 - 69
ISSN:
1045-6740
Resumen:
Rock glaciers near the Andean mountains of central and northwestern Argentina provide an important supply of water for agriculture, but data on their number, size, geographic distribution and altitudinal range are poorly known. Here, we provide the first detailed rock glacier inventory of the Valles Calchaquíes region of Salta, Argentina, based on 2.5 m x 2.5 m resolution Advanced Land Observing Satellite PRISM (Panchromatic Remote-sensing Instruments for Stereo Mapping) satellite images. Rock glacier outlines were manually digitised and a total of 488 were identified, which cover a total area of c. 59 km2. The lower limits of intact and fossil rock glaciers are at c. 4300 m asl and 4100 m asl, respectively. Because rock glaciers are protected by law in Argentina, the inventory provides an important basis for political decision-making about water resources and for further periglacial and environmental studies in this region.