Influence of climate change on Halslon reservoir sediment filling

S. M. Gardarsson; J. Eliasson

doi:10.2166/nh.2006.014

Influence of climate change on Halslon reservoir sediment filling

S. M. Gardarsson, J. Eliasson

Engineering and Natural Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Halslon reservoir is the main reservoir of the Karahnjukar hydropower project in the Eastern highlands of Iceland currently under construction. The reservoir has storage capacity of 2100 million m³ and generating capacity of approximately 4600 GWh/year. Studies for the Environmental Impact Assessment for the hydropower project showed that sediment will fill up the reservoir in about 500 years based on the present sediment transport rate. The main source of the sediment is Bruarjokull outlet glacier which is a part of the Vatnajokull ice cap. Recent studies of influence of climate warming on Icelandic glaciers show that they will decrease significantly and in some cases completely disappear during the next few hundred years. In this study a glacier melting model for the Bruarjokull outlet glacier is constructed to predict how fast the glacier will decrease as a response to accepted climate warming scenario. The results from the glacier model is then used as an input to sediment transport mass balance model for Halslon reservoir which predicts the influence of the glacier melting on the sedimentation in the reservoir. The modeling shows that instead of the reservoir being completely full of sediment in 500 years, the Halslon reservoir will have at that time about 50-60% of its volume remaining as the sediment yield will decrease as a result of the decreasing glacier size.

Original language	English
Title of host publication	Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century
Publisher	Taylor and Francis/ Balkema
Pages	1255-1260
Number of pages	6
ISBN (Print)	0415404231, 9780415404235
DOIs	https://doi.org/10.2166/nh.2006.014
Publication status	Published - 2006
Event	International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century - Barcelona, Spain Duration: 18 Jun 2006 → 18 Jun 2006

Publication series

Name	Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century
Volume	2

Conference

Conference	International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century
Country/Territory	Spain
City	Barcelona
Period	18/06/06 → 18/06/06

Access to Document

10.2166/nh.2006.014

Cite this

Gardarsson, S. M., & Eliasson, J. (2006). Influence of climate change on Halslon reservoir sediment filling. In Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century (pp. 1255-1260). (Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century; Vol. 2). Taylor and Francis/ Balkema. https://doi.org/10.2166/nh.2006.014

Gardarsson, S. M. ; Eliasson, J. / Influence of climate change on Halslon reservoir sediment filling. Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century. Taylor and Francis/ Balkema, 2006. pp. 1255-1260 (Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century).

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title = "Influence of climate change on Halslon reservoir sediment filling",

abstract = "Halslon reservoir is the main reservoir of the Karahnjukar hydropower project in the Eastern highlands of Iceland currently under construction. The reservoir has storage capacity of 2100 million m3 and generating capacity of approximately 4600 GWh/year. Studies for the Environmental Impact Assessment for the hydropower project showed that sediment will fill up the reservoir in about 500 years based on the present sediment transport rate. The main source of the sediment is Bruarjokull outlet glacier which is a part of the Vatnajokull ice cap. Recent studies of influence of climate warming on Icelandic glaciers show that they will decrease significantly and in some cases completely disappear during the next few hundred years. In this study a glacier melting model for the Bruarjokull outlet glacier is constructed to predict how fast the glacier will decrease as a response to accepted climate warming scenario. The results from the glacier model is then used as an input to sediment transport mass balance model for Halslon reservoir which predicts the influence of the glacier melting on the sedimentation in the reservoir. The modeling shows that instead of the reservoir being completely full of sediment in 500 years, the Halslon reservoir will have at that time about 50-60% of its volume remaining as the sediment yield will decrease as a result of the decreasing glacier size.",

author = "Gardarsson, {S. M.} and J. Eliasson",

year = "2006",

doi = "10.2166/nh.2006.014",

language = "English",

isbn = "0415404231",

series = "Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century",

publisher = "Taylor and Francis/ Balkema",

pages = "1255--1260",

booktitle = "Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century",

note = "International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century ; Conference date: 18-06-2006 Through 18-06-2006",

}

Gardarsson, SM & Eliasson, J 2006, Influence of climate change on Halslon reservoir sediment filling. in Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century. Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century, vol. 2, Taylor and Francis/ Balkema, pp. 1255-1260, International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century, Barcelona, Spain, 18/06/06. https://doi.org/10.2166/nh.2006.014

Influence of climate change on Halslon reservoir sediment filling. / Gardarsson, S. M.; Eliasson, J.

Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century. Taylor and Francis/ Balkema, 2006. p. 1255-1260 (Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - Halslon reservoir is the main reservoir of the Karahnjukar hydropower project in the Eastern highlands of Iceland currently under construction. The reservoir has storage capacity of 2100 million m3 and generating capacity of approximately 4600 GWh/year. Studies for the Environmental Impact Assessment for the hydropower project showed that sediment will fill up the reservoir in about 500 years based on the present sediment transport rate. The main source of the sediment is Bruarjokull outlet glacier which is a part of the Vatnajokull ice cap. Recent studies of influence of climate warming on Icelandic glaciers show that they will decrease significantly and in some cases completely disappear during the next few hundred years. In this study a glacier melting model for the Bruarjokull outlet glacier is constructed to predict how fast the glacier will decrease as a response to accepted climate warming scenario. The results from the glacier model is then used as an input to sediment transport mass balance model for Halslon reservoir which predicts the influence of the glacier melting on the sedimentation in the reservoir. The modeling shows that instead of the reservoir being completely full of sediment in 500 years, the Halslon reservoir will have at that time about 50-60% of its volume remaining as the sediment yield will decrease as a result of the decreasing glacier size.

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Gardarsson SM, Eliasson J. Influence of climate change on Halslon reservoir sediment filling. In Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century. Taylor and Francis/ Balkema. 2006. p. 1255-1260. (Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century). doi: 10.2166/nh.2006.014

Influence of climate change on Halslon reservoir sediment filling

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