Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen.
International audience Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. The Kurtna reserve (North-Eastern Estonia) includes about forty lakes of hydro-glacial origin, among which the most are kettle hole lak...
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ftunivorleans:oai:HAL:hal-00933395v2 2024-05-19T07:38:03+00:00 Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. Le risque de dégradation de la qualité de l'eau des lacs de la réserve naturelle de Kurtna (Estonie) : le cas de la température et de l'oxygène dissous Touchart, Laurent Millot, Camille Maleval, Véronique Koff, Tiiu Kapanen, Galina Terasmaa, Jaanus Vandel, Egert Vainu, M. Nedjaï, Rachid Bartout, Pascal Azaroual, Abdelhamid Centre d'Etudes pour le Développement des Territoires et l'Environnement (CEDETE) Université d'Orléans (UO) Laboratoire de Géographie Physique et Environnementale (GEOLAB) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA) Institute of Ecology Tallinn University Pacte, Laboratoire de sciences sociales (PACTE) Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Sciences Po Grenoble - Institut d'études politiques de Grenoble (IEPG)-Centre National de la Recherche Scientifique (CNRS) PHC PARROT 2013 https://hal.science/hal-00933395 https://hal.science/hal-00933395v2/document https://hal.science/hal-00933395v2/file/TAP%20Risque%20Kurtna%202013.pdf fr fre HAL CCSD "Babes-Bolyai" University from Cluj-Napoca, Faculty of Geography hal-00933395 https://hal.science/hal-00933395 https://hal.science/hal-00933395v2/document https://hal.science/hal-00933395v2/file/TAP%20Risque%20Kurtna%202013.pdf info:eu-repo/semantics/OpenAccess ISSN: 1584-5273 Riscuri si Catastrofe https://hal.science/hal-00933395 Riscuri si Catastrofe, 2013, 13 (XII), pp.49-62 water temperature ice-covered lake inverse stratification dissolved oxygen Estonia banquise lacustre température de l'eau stratification inverse oxygène dissous Estonie [SHS.GEO]Humanities and Social Sciences/Geography [SDE]Environmental Sciences [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/article Journal articles 2013 ftunivorleans 2024-05-01T23:59:32Z International audience Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. The Kurtna reserve (North-Eastern Estonia) includes about forty lakes of hydro-glacial origin, among which the most are kettle hole lakes. Their level and the quality of water are conditioned by aquifers, which are threatened by industrial activities (sand quarry, peat production and oil shale excavation). The paper presents results of a field campaign in March 2013, for measuring water temperature, dissolved oxygen and salinity in two ice-covered lakes (Martiska and Nõmme). Martiska is a closed lake. A large (from 0 °C to 4 °C) inverse thermal stratification takes place under the ice. The very thick anoxic layer may be caused by the cumulating effect of the ice barrier and the consumption in a rich in organic matter lake. Nõmme fits in a hydrographical chain with tributaries and an emissary. The inverse thermal stratification is disturbed by a well delimited mid-layer. Temperature, dissolved oxygen and salinity show that it is probably the fluvial water body, which has entered the lake. The hypothesis is confirmed by the study of the river plume. This inflow is rich in dissolved oxygen. We may suggest, that the lakes with an affluent are less threatened by the winter lack of oxygen than the closed lakes of the region. Article in Journal/Newspaper banquise Université d'Orléans: HAL |
institution |
Open Polar |
collection |
Université d'Orléans: HAL |
op_collection_id |
ftunivorleans |
language |
French |
topic |
water temperature ice-covered lake inverse stratification dissolved oxygen Estonia banquise lacustre température de l'eau stratification inverse oxygène dissous Estonie [SHS.GEO]Humanities and Social Sciences/Geography [SDE]Environmental Sciences [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
water temperature ice-covered lake inverse stratification dissolved oxygen Estonia banquise lacustre température de l'eau stratification inverse oxygène dissous Estonie [SHS.GEO]Humanities and Social Sciences/Geography [SDE]Environmental Sciences [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Touchart, Laurent Millot, Camille Maleval, Véronique Koff, Tiiu Kapanen, Galina Terasmaa, Jaanus Vandel, Egert Vainu, M. Nedjaï, Rachid Bartout, Pascal Azaroual, Abdelhamid Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. |
topic_facet |
water temperature ice-covered lake inverse stratification dissolved oxygen Estonia banquise lacustre température de l'eau stratification inverse oxygène dissous Estonie [SHS.GEO]Humanities and Social Sciences/Geography [SDE]Environmental Sciences [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
International audience Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. The Kurtna reserve (North-Eastern Estonia) includes about forty lakes of hydro-glacial origin, among which the most are kettle hole lakes. Their level and the quality of water are conditioned by aquifers, which are threatened by industrial activities (sand quarry, peat production and oil shale excavation). The paper presents results of a field campaign in March 2013, for measuring water temperature, dissolved oxygen and salinity in two ice-covered lakes (Martiska and Nõmme). Martiska is a closed lake. A large (from 0 °C to 4 °C) inverse thermal stratification takes place under the ice. The very thick anoxic layer may be caused by the cumulating effect of the ice barrier and the consumption in a rich in organic matter lake. Nõmme fits in a hydrographical chain with tributaries and an emissary. The inverse thermal stratification is disturbed by a well delimited mid-layer. Temperature, dissolved oxygen and salinity show that it is probably the fluvial water body, which has entered the lake. The hypothesis is confirmed by the study of the river plume. This inflow is rich in dissolved oxygen. We may suggest, that the lakes with an affluent are less threatened by the winter lack of oxygen than the closed lakes of the region. |
author2 |
Centre d'Etudes pour le Développement des Territoires et l'Environnement (CEDETE) Université d'Orléans (UO) Laboratoire de Géographie Physique et Environnementale (GEOLAB) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA) Institute of Ecology Tallinn University Pacte, Laboratoire de sciences sociales (PACTE) Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Sciences Po Grenoble - Institut d'études politiques de Grenoble (IEPG)-Centre National de la Recherche Scientifique (CNRS) PHC PARROT |
format |
Article in Journal/Newspaper |
author |
Touchart, Laurent Millot, Camille Maleval, Véronique Koff, Tiiu Kapanen, Galina Terasmaa, Jaanus Vandel, Egert Vainu, M. Nedjaï, Rachid Bartout, Pascal Azaroual, Abdelhamid |
author_facet |
Touchart, Laurent Millot, Camille Maleval, Véronique Koff, Tiiu Kapanen, Galina Terasmaa, Jaanus Vandel, Egert Vainu, M. Nedjaï, Rachid Bartout, Pascal Azaroual, Abdelhamid |
author_sort |
Touchart, Laurent |
title |
Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. |
title_short |
Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. |
title_full |
Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. |
title_fullStr |
Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. |
title_full_unstemmed |
Environmental risk about water quality of lakes in Kurtna landscape reserve (Estonia) by the study of water temperature and dissolved oxygen. |
title_sort |
environmental risk about water quality of lakes in kurtna landscape reserve (estonia) by the study of water temperature and dissolved oxygen. |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00933395 https://hal.science/hal-00933395v2/document https://hal.science/hal-00933395v2/file/TAP%20Risque%20Kurtna%202013.pdf |
genre |
banquise |
genre_facet |
banquise |
op_source |
ISSN: 1584-5273 Riscuri si Catastrofe https://hal.science/hal-00933395 Riscuri si Catastrofe, 2013, 13 (XII), pp.49-62 |
op_relation |
hal-00933395 https://hal.science/hal-00933395 https://hal.science/hal-00933395v2/document https://hal.science/hal-00933395v2/file/TAP%20Risque%20Kurtna%202013.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1799477446635945984 |