The Kerauga cave and Lækjarbotnaveita in South Iceland ‒ groundwater safety and hydrogeology
This research looks at water protection of Lækjarbotnar and Kerauga springs in South Iceland. Discharge measurements show that Minnivalla- and Tjarnalækur streams lose 350 and 1350 l/s respectively into the ground. The equivalent amount springs to surface along the edge of the Þjórsá Lava and Búði G...
Published in: | Journal of Water Security |
---|---|
Main Authors: | , , , |
Format: | Other/Unknown Material |
Language: | English |
Published: |
2017
|
Subjects: | |
Online Access: | https://doi.org/10.15544/jws.2017.001 https://hdl.handle.net/20.500.12259/104283 |
id |
ftvytmagnusuniv:oai:portalcris.vdu.lt:20.500.12259/104283 |
---|---|
record_format |
openpolar |
spelling |
ftvytmagnusuniv:oai:portalcris.vdu.lt:20.500.12259/104283 2023-05-15T16:47:50+02:00 The Kerauga cave and Lækjarbotnaveita in South Iceland ‒ groundwater safety and hydrogeology Ketilsson, Jónas Óskarsdóttir, Sigríður Magnea Claesson, Andrea Collet, Nathalie Jonasson 2017 application/pdf https://doi.org/10.15544/jws.2017.001 https://hdl.handle.net/20.500.12259/104283 en eng Journal of water security, 2017, vol. 3, p. 1-11 2345-0363 http://dx.doi.org/10.15544/jws.2017.001 https://hdl.handle.net/20.500.12259/104283 Sutarties data 2019-09-04, nr. A1932, laisvai prieinamas internete Aquifer Groundwater system Kerauga Poultry farm Water safety Straipsnis / Article 2017 ftvytmagnusuniv https://doi.org/10.15544/jws.2017.001 2020-04-13T23:44:18Z This research looks at water protection of Lækjarbotnar and Kerauga springs in South Iceland. Discharge measurements show that Minnivalla- and Tjarnalækur streams lose 350 and 1350 l/s respectively into the ground. The equivalent amount springs to surface along the edge of the Þjórsá Lava and Búði Glacial Moraine in a few springs. Tracer tests indicate that lost surface water of Minnivallalækur transits partly along a fracture to Kerauga in 65 days and to Lækjarbotnar in 125 days through the Þjórsá Lava over a similar distance of about 5 km. Hence the lost surface water of Tjarnalækur in the east is unlikely to travel past this drainage divide west of the fracture to Lækjarbotnar but more likely to drain into Ytri-Rangá. Thus a proposed poultry farm in that area proposes minimum direct risk to water safety of Lækjarbotnar. As a result of this connection Kerauga is not a safe source of drinking water. The aquifer is considered unconfined, heterogeneous and anisotropic. It is recommended to define inner and outer protection zones for Lækjarbotnar further north and to springs of Minnivallalækur respectively. It is hypothesized that Kerauga cave is manmade. Other/Unknown Material Iceland Þjórsá Vytautas Magnus University e-Publication Repository (VMU ePub) Þjórsá ENVELOPE(-20.786,-20.786,63.782,63.782) Rangá ENVELOPE(-14.410,-14.410,65.345,65.345) Ytri-Rangá ENVELOPE(-20.481,-20.481,63.778,63.778) Journal of Water Security 3 1 |
institution |
Open Polar |
collection |
Vytautas Magnus University e-Publication Repository (VMU ePub) |
op_collection_id |
ftvytmagnusuniv |
language |
English |
topic |
Aquifer Groundwater system Kerauga Poultry farm Water safety |
spellingShingle |
Aquifer Groundwater system Kerauga Poultry farm Water safety Ketilsson, Jónas Óskarsdóttir, Sigríður Magnea Claesson, Andrea Collet, Nathalie Jonasson The Kerauga cave and Lækjarbotnaveita in South Iceland ‒ groundwater safety and hydrogeology |
topic_facet |
Aquifer Groundwater system Kerauga Poultry farm Water safety |
description |
This research looks at water protection of Lækjarbotnar and Kerauga springs in South Iceland. Discharge measurements show that Minnivalla- and Tjarnalækur streams lose 350 and 1350 l/s respectively into the ground. The equivalent amount springs to surface along the edge of the Þjórsá Lava and Búði Glacial Moraine in a few springs. Tracer tests indicate that lost surface water of Minnivallalækur transits partly along a fracture to Kerauga in 65 days and to Lækjarbotnar in 125 days through the Þjórsá Lava over a similar distance of about 5 km. Hence the lost surface water of Tjarnalækur in the east is unlikely to travel past this drainage divide west of the fracture to Lækjarbotnar but more likely to drain into Ytri-Rangá. Thus a proposed poultry farm in that area proposes minimum direct risk to water safety of Lækjarbotnar. As a result of this connection Kerauga is not a safe source of drinking water. The aquifer is considered unconfined, heterogeneous and anisotropic. It is recommended to define inner and outer protection zones for Lækjarbotnar further north and to springs of Minnivallalækur respectively. It is hypothesized that Kerauga cave is manmade. |
format |
Other/Unknown Material |
author |
Ketilsson, Jónas Óskarsdóttir, Sigríður Magnea Claesson, Andrea Collet, Nathalie Jonasson |
author_facet |
Ketilsson, Jónas Óskarsdóttir, Sigríður Magnea Claesson, Andrea Collet, Nathalie Jonasson |
author_sort |
Ketilsson, Jónas |
title |
The Kerauga cave and Lækjarbotnaveita in South Iceland ‒ groundwater safety and hydrogeology |
title_short |
The Kerauga cave and Lækjarbotnaveita in South Iceland ‒ groundwater safety and hydrogeology |
title_full |
The Kerauga cave and Lækjarbotnaveita in South Iceland ‒ groundwater safety and hydrogeology |
title_fullStr |
The Kerauga cave and Lækjarbotnaveita in South Iceland ‒ groundwater safety and hydrogeology |
title_full_unstemmed |
The Kerauga cave and Lækjarbotnaveita in South Iceland ‒ groundwater safety and hydrogeology |
title_sort |
kerauga cave and lækjarbotnaveita in south iceland ‒ groundwater safety and hydrogeology |
publishDate |
2017 |
url |
https://doi.org/10.15544/jws.2017.001 https://hdl.handle.net/20.500.12259/104283 |
long_lat |
ENVELOPE(-20.786,-20.786,63.782,63.782) ENVELOPE(-14.410,-14.410,65.345,65.345) ENVELOPE(-20.481,-20.481,63.778,63.778) |
geographic |
Þjórsá Rangá Ytri-Rangá |
geographic_facet |
Þjórsá Rangá Ytri-Rangá |
genre |
Iceland Þjórsá |
genre_facet |
Iceland Þjórsá |
op_relation |
Journal of water security, 2017, vol. 3, p. 1-11 2345-0363 http://dx.doi.org/10.15544/jws.2017.001 https://hdl.handle.net/20.500.12259/104283 |
op_rights |
Sutarties data 2019-09-04, nr. A1932, laisvai prieinamas internete |
op_doi |
https://doi.org/10.15544/jws.2017.001 |
container_title |
Journal of Water Security |
container_volume |
3 |
container_issue |
1 |
_version_ |
1766037933974880256 |