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Glacier Mass Balance Reconstruction by Sublimation Induced Enrichment of Chemical Species on Cerro Tapado (Chilean Andes) : Volume 1, Issue 2 (22/09/2005)

By Ginot, P.

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Book Id: WPLBN0004006642
Format Type: PDF Article :
File Size: Pages 24
Reproduction Date: 2015

Title: Glacier Mass Balance Reconstruction by Sublimation Induced Enrichment of Chemical Species on Cerro Tapado (Chilean Andes) : Volume 1, Issue 2 (22/09/2005)  
Author: Ginot, P.
Volume: Vol. 1, Issue 2
Language: English
Subject: Science, Climate, Past
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2005
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Schotterer, U., Kull, C., Schwikowski, M., Gäggeler, H. W., & Ginot, P. (2005). Glacier Mass Balance Reconstruction by Sublimation Induced Enrichment of Chemical Species on Cerro Tapado (Chilean Andes) : Volume 1, Issue 2 (22/09/2005). Retrieved from http://www.ebooklibrary.org/


Description
Description: Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland. A 36 m long ice core down to bedrock from the Cerro Tapado glacier (5536 m a.s.l., 30°08' S, 69°55' W) was analyzed to reconstruct past climatic conditions for Northern Chile. Because of the marked seasonality in the precipitation (short wet winter and extended dry summer periods) in this region, major snow ablation and related post-depositional processes occur on the glacier surface during summer periods. They include predominantly sublimation and dry deposition. Under certain assumptions the chemical record along the ice core may be applied to reconstruct the history of such secondary processes. For the time period 1962–1999, a mean annual net accumulation of 316 mm water equivalent (weq) and 327 mm weq loss by sublimation was deduced by this method. This corresponds to an initial total annual accumulation of 539 mm weq. The annual variability of the accumulation and sublimation may exhibit a correlation with the Southern Oscillation Index (SOI). The deepest part of the ice record shows a time discontinuity; its age is unknown.

Summary
Glacier mass balance reconstruction by sublimation induced enrichment of chemical species on Cerro Tapado (Chilean Andes)

 

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