(Supplement 1) Selected chemical composition of Icelandic river waters and bedrock age
In this study we map the spatial distribution of selected dissolved constituents in Icelandic river waters using GIS methods to study and interpret the connection between river chemistry, bedrock, hydrology, vegetation and aquatic ecology. Five parameters were selected: alkalinity, SiO2, Mo, F and t...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.818182 https://doi.org/10.1594/PANGAEA.818182 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.818182 2024-04-21T08:06:01+00:00 (Supplement 1) Selected chemical composition of Icelandic river waters and bedrock age Oskarsdottir, Sigrídur Magnea Gislason, Sigurdur Reynir Snorrason, Arni Halldorsdottir, Stefanía Gudrún Gisladottir, Gudrún MEDIAN LATITUDE: 64.656554 * MEDIAN LONGITUDE: -18.730571 * SOUTH-BOUND LATITUDE: 63.420000 * WEST-BOUND LONGITUDE: -23.170000 * NORTH-BOUND LATITUDE: 66.174000 * EAST-BOUND LONGITUDE: -14.000000 2011 text/tab-separated-values, 335 data points https://doi.pangaea.de/10.1594/PANGAEA.818182 https://doi.org/10.1594/PANGAEA.818182 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.818182 https://doi.org/10.1594/PANGAEA.818182 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Oskarsdottir, Sigrídur Magnea; Gislason, Sigurdur Reynir; Snorrason, Arni; Halldorsdottir, Stefanía Gudrún; Gisladottir, Gudrún (2011): Spatial distribution of dissolved constituents in Icelandic river waters. Journal of Hydrology, 397(3-4), 175-190, https://doi.org/10.1016/j.jhydrol.2010.11.028 Age mineral Alkalinity total Event label Fluorine Iceland International Polar Year (2007-2008) IPY IS_A-Jokulsa IS_Asa-Eldvatn IS_Blanda IS_Bruara IS_Djupa IS_Dynjandi IS_Eldvatn_M IS_Ellidaar IS_Fellsa IS_Fjardará IS_Fljótsdal IS_Flokadalsa IS_Fnjoska IS_Geithellnaa IS_Gigja IS_Grenlaekur IS_Grimsa_L IS_Grimsa_S IS_Grimsstadir IS_Hamarsa IS_Hjaltadalsa IS_Hjardarhagi IS_Hverfisfljot IS_Hvita_S IS_Hvita_W IS_Kaldakvisl IS_Kreppa IS_Langisjór IS_Laqarfliot IS_Laxa_A IS_Laxa_V IS_Leira IS_Loni IS_Mulakvisl IS_Nordura IS_Olfusa IS_Osa IS_Reykjadalsa IS_Sanda IS_Skaftárdalur IS_Skeidará Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.81818210.1016/j.jhydrol.2010.11.028 2024-03-27T15:16:40Z In this study we map the spatial distribution of selected dissolved constituents in Icelandic river waters using GIS methods to study and interpret the connection between river chemistry, bedrock, hydrology, vegetation and aquatic ecology. Five parameters were selected: alkalinity, SiO2, Mo, F and the dissolved inorganic nitrogen and dissolved inorganic phosphorus mole ratio (DIN/DIP). The highest concentrations were found in rivers draining young rocks within the volcanic rift zone and especially those draining active central volcanoes. However, several catchments on the margins of the rift zone also had high values for these parameters, due to geothermal influence or wetlands within their catchment area. The DIN/DIP mole ratio was higher than 16 in rivers draining old rocks, but lowest in rivers within the volcanic rift zone. Thus primary production in the rivers is limited by fixed dissolved nitrogen within the rift zone, but dissolved phosphorus in the old Tertiary catchments. Nitrogen fixation within the rift zone can be enhanced by high dissolved molybdenum concentrations in the vicinity of volcanoes. The river catchments in this study were subdivided into several hydrological categories. Importantly, the variation in the hydrology of the catchments cannot alone explain the variation in dissolved constituents. The presence or absence of central volcanoes, young reactive rocks, geothermal systems and wetlands is important for the chemistry of the river waters. We used too many categories within several of the river catchments to be able to determine a statistically significant connection between the chem¬istry of the river waters and the hydrological categories. More data are needed from rivers draining one single hydrological category. The spatial dissolved constituent distribution clearly revealed the difference between the two extremes, the young rocks of the volcanic rift zone and the old Tertiary terrain. Dataset Iceland International Polar Year IPY PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-23.170000,-14.000000,66.174000,63.420000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age mineral Alkalinity total Event label Fluorine Iceland International Polar Year (2007-2008) IPY IS_A-Jokulsa IS_Asa-Eldvatn IS_Blanda IS_Bruara IS_Djupa IS_Dynjandi IS_Eldvatn_M IS_Ellidaar IS_Fellsa IS_Fjardará IS_Fljótsdal IS_Flokadalsa IS_Fnjoska IS_Geithellnaa IS_Gigja IS_Grenlaekur IS_Grimsa_L IS_Grimsa_S IS_Grimsstadir IS_Hamarsa IS_Hjaltadalsa IS_Hjardarhagi IS_Hverfisfljot IS_Hvita_S IS_Hvita_W IS_Kaldakvisl IS_Kreppa IS_Langisjór IS_Laqarfliot IS_Laxa_A IS_Laxa_V IS_Leira IS_Loni IS_Mulakvisl IS_Nordura IS_Olfusa IS_Osa IS_Reykjadalsa IS_Sanda IS_Skaftárdalur IS_Skeidará |
spellingShingle |
Age mineral Alkalinity total Event label Fluorine Iceland International Polar Year (2007-2008) IPY IS_A-Jokulsa IS_Asa-Eldvatn IS_Blanda IS_Bruara IS_Djupa IS_Dynjandi IS_Eldvatn_M IS_Ellidaar IS_Fellsa IS_Fjardará IS_Fljótsdal IS_Flokadalsa IS_Fnjoska IS_Geithellnaa IS_Gigja IS_Grenlaekur IS_Grimsa_L IS_Grimsa_S IS_Grimsstadir IS_Hamarsa IS_Hjaltadalsa IS_Hjardarhagi IS_Hverfisfljot IS_Hvita_S IS_Hvita_W IS_Kaldakvisl IS_Kreppa IS_Langisjór IS_Laqarfliot IS_Laxa_A IS_Laxa_V IS_Leira IS_Loni IS_Mulakvisl IS_Nordura IS_Olfusa IS_Osa IS_Reykjadalsa IS_Sanda IS_Skaftárdalur IS_Skeidará Oskarsdottir, Sigrídur Magnea Gislason, Sigurdur Reynir Snorrason, Arni Halldorsdottir, Stefanía Gudrún Gisladottir, Gudrún (Supplement 1) Selected chemical composition of Icelandic river waters and bedrock age |
topic_facet |
Age mineral Alkalinity total Event label Fluorine Iceland International Polar Year (2007-2008) IPY IS_A-Jokulsa IS_Asa-Eldvatn IS_Blanda IS_Bruara IS_Djupa IS_Dynjandi IS_Eldvatn_M IS_Ellidaar IS_Fellsa IS_Fjardará IS_Fljótsdal IS_Flokadalsa IS_Fnjoska IS_Geithellnaa IS_Gigja IS_Grenlaekur IS_Grimsa_L IS_Grimsa_S IS_Grimsstadir IS_Hamarsa IS_Hjaltadalsa IS_Hjardarhagi IS_Hverfisfljot IS_Hvita_S IS_Hvita_W IS_Kaldakvisl IS_Kreppa IS_Langisjór IS_Laqarfliot IS_Laxa_A IS_Laxa_V IS_Leira IS_Loni IS_Mulakvisl IS_Nordura IS_Olfusa IS_Osa IS_Reykjadalsa IS_Sanda IS_Skaftárdalur IS_Skeidará |
description |
In this study we map the spatial distribution of selected dissolved constituents in Icelandic river waters using GIS methods to study and interpret the connection between river chemistry, bedrock, hydrology, vegetation and aquatic ecology. Five parameters were selected: alkalinity, SiO2, Mo, F and the dissolved inorganic nitrogen and dissolved inorganic phosphorus mole ratio (DIN/DIP). The highest concentrations were found in rivers draining young rocks within the volcanic rift zone and especially those draining active central volcanoes. However, several catchments on the margins of the rift zone also had high values for these parameters, due to geothermal influence or wetlands within their catchment area. The DIN/DIP mole ratio was higher than 16 in rivers draining old rocks, but lowest in rivers within the volcanic rift zone. Thus primary production in the rivers is limited by fixed dissolved nitrogen within the rift zone, but dissolved phosphorus in the old Tertiary catchments. Nitrogen fixation within the rift zone can be enhanced by high dissolved molybdenum concentrations in the vicinity of volcanoes. The river catchments in this study were subdivided into several hydrological categories. Importantly, the variation in the hydrology of the catchments cannot alone explain the variation in dissolved constituents. The presence or absence of central volcanoes, young reactive rocks, geothermal systems and wetlands is important for the chemistry of the river waters. We used too many categories within several of the river catchments to be able to determine a statistically significant connection between the chem¬istry of the river waters and the hydrological categories. More data are needed from rivers draining one single hydrological category. The spatial dissolved constituent distribution clearly revealed the difference between the two extremes, the young rocks of the volcanic rift zone and the old Tertiary terrain. |
format |
Dataset |
author |
Oskarsdottir, Sigrídur Magnea Gislason, Sigurdur Reynir Snorrason, Arni Halldorsdottir, Stefanía Gudrún Gisladottir, Gudrún |
author_facet |
Oskarsdottir, Sigrídur Magnea Gislason, Sigurdur Reynir Snorrason, Arni Halldorsdottir, Stefanía Gudrún Gisladottir, Gudrún |
author_sort |
Oskarsdottir, Sigrídur Magnea |
title |
(Supplement 1) Selected chemical composition of Icelandic river waters and bedrock age |
title_short |
(Supplement 1) Selected chemical composition of Icelandic river waters and bedrock age |
title_full |
(Supplement 1) Selected chemical composition of Icelandic river waters and bedrock age |
title_fullStr |
(Supplement 1) Selected chemical composition of Icelandic river waters and bedrock age |
title_full_unstemmed |
(Supplement 1) Selected chemical composition of Icelandic river waters and bedrock age |
title_sort |
(supplement 1) selected chemical composition of icelandic river waters and bedrock age |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.818182 https://doi.org/10.1594/PANGAEA.818182 |
op_coverage |
MEDIAN LATITUDE: 64.656554 * MEDIAN LONGITUDE: -18.730571 * SOUTH-BOUND LATITUDE: 63.420000 * WEST-BOUND LONGITUDE: -23.170000 * NORTH-BOUND LATITUDE: 66.174000 * EAST-BOUND LONGITUDE: -14.000000 |
long_lat |
ENVELOPE(-23.170000,-14.000000,66.174000,63.420000) |
genre |
Iceland International Polar Year IPY |
genre_facet |
Iceland International Polar Year IPY |
op_source |
Supplement to: Oskarsdottir, Sigrídur Magnea; Gislason, Sigurdur Reynir; Snorrason, Arni; Halldorsdottir, Stefanía Gudrún; Gisladottir, Gudrún (2011): Spatial distribution of dissolved constituents in Icelandic river waters. Journal of Hydrology, 397(3-4), 175-190, https://doi.org/10.1016/j.jhydrol.2010.11.028 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.818182 https://doi.org/10.1594/PANGAEA.818182 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.81818210.1016/j.jhydrol.2010.11.028 |
_version_ |
1796945337089261568 |