Retroceso glacial reciente en el Campo de Hielo Norte, región de Aysén, Chile: relación con variaciones climáticas.

Authors

  • María Mardones F. Universidad de Concepción (Chile)
  • Mauricio . Aguayo A Universidad de Concepción (Chile)
  • Ernesto Smith A. Universidad de Concepción (Chile)
  • Paulina Ruiz L. Universidad de Concepción (Chile)

DOI:

https://doi.org/10.4067/S0718-34022018000100121

Keywords:

Northern Icefield, glacial retreat Post Little Ice Age, Glacial Geomorphology, Aysén Region

Abstract

We study the fluctuations seven North Ice Field glaciers and their relationship with decadal climatic variations post Little Ice Age, through bibliography, interpretation of cartographic documents, aerial photographs, satellite images and terrain surveys. Decadal climatic variations are obtained from the records of Puerto Aysén and Balmaceda meteorological stations. Widespread, continuous and synchronous glacial regression on both slopes of the icefield is observed, disturbed only by small advances in the 1920s and 1940s. Since 1972 precipitation has declined and temperatures have increased; simultaneously the rate of glacial retreat accelerates, culminating with a collapse of much of the glacial fronts in the 1990s. The geomorphological eff ects of the glacial retreat is setting a new proglacial geomorphology and danger zones associated with paraglacial processes.

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Author Biographies

María Mardones F., Universidad de Concepción (Chile)

Centro EULA, Universidad de Concepción (Chile)

 

 

 

Mauricio . Aguayo A, Universidad de Concepción (Chile)

Centro EULA / Facultad de Ciencias Ambientales, Universidad de Concepción (Chile)  

 

Ernesto Smith A., Universidad de Concepción (Chile)

Centro EULA / Facultad de Ciencias Ambientales, Universidad de Concepción (Chile) 

 

Paulina Ruiz L., Universidad de Concepción (Chile)

Centro EULA / Facultad de Ciencias Ambientales, Universidad de Concepción (Chile) 

Published

2018-05-15

How to Cite

Mardones F., M. ., Aguayo A, M. ., Smith A., E. ., & Ruiz L., P. . (2018). Retroceso glacial reciente en el Campo de Hielo Norte, región de Aysén, Chile: relación con variaciones climáticas. Revista De Geografía Norte Grande, (69), 121–147. https://doi.org/10.4067/S0718-34022018000100121

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Section

Artículos