Field study on currents in a shallow, ice‐covered lake
A field study on current structure and circulation characteristics in Lake Vendyurskoe, a small, shallow, icecovered lake in Karelia, Russia, is presented. The current velocity magnitudes were generally found to be small. The most pronounced currents had an oscillating character, with velocity ampli...
Published in: | Limnology and Oceanography |
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Format: | Article in Journal/Newspaper |
Language: | English |
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1998
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Online Access: | https://lup.lub.lu.se/record/5c677bd1-a57e-47ea-a58b-2bfe4fcf5ba8 https://doi.org/10.4319/lo.1998.43.7.1669 |
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ftulundlup:oai:lup.lub.lu.se:5c677bd1-a57e-47ea-a58b-2bfe4fcf5ba8 2023-05-15T17:01:09+02:00 Field study on currents in a shallow, ice‐covered lake Malm, Joakim Bengtsson, Lars Arkady, Terzhevik Pjotr, Boyarinov Glinsky, Alexander Palshin, Nikolai Michail, Petrov 1998 https://lup.lub.lu.se/record/5c677bd1-a57e-47ea-a58b-2bfe4fcf5ba8 https://doi.org/10.4319/lo.1998.43.7.1669 eng eng ASLO https://lup.lub.lu.se/record/5c677bd1-a57e-47ea-a58b-2bfe4fcf5ba8 http://dx.doi.org/10.4319/lo.1998.43.7.1669 scopus:0031773679 Limnology and Oceanography; 43(7), pp 1669-1679 (1998) ISSN: 1939-5590 Oceanography Hydrology Water Resources contributiontojournal/article info:eu-repo/semantics/article text 1998 ftulundlup https://doi.org/10.4319/lo.1998.43.7.1669 2023-02-01T23:38:10Z A field study on current structure and circulation characteristics in Lake Vendyurskoe, a small, shallow, icecovered lake in Karelia, Russia, is presented. The current velocity magnitudes were generally found to be small. The most pronounced currents had an oscillating character, with velocity amplitudes on the order of millimeters per second. The oscillation period, obtained from spectral density calculations, corresponded to that of a barotropic uninodal seiche. The seichelike nature of the current oscillations was supported by the results from analysis of icelevel fluctuations, giving identical periods and a phase shift of one‐fourth the period between the two types of oscillations. Mean currents measured during the winter were on the order of millimeters per second. Because Lake Vendyurskoe does not have any significant river inflow or outflow during winter, the most probable cause of these currents is horizontal temperature (pressure) gradients. Scaling analysis indicated that these currents are geostrophic. This was supported by theoretical estimates, based on observed horizontal temperature gradients, being of the same order as the observed currents. The mean current velocities increased considerably after spring convection from <1 to several millimeters per second. Article in Journal/Newspaper karelia* Lund University Publications (LUP) Limnology and Oceanography 43 7 1669 1679 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Oceanography Hydrology Water Resources |
spellingShingle |
Oceanography Hydrology Water Resources Malm, Joakim Bengtsson, Lars Arkady, Terzhevik Pjotr, Boyarinov Glinsky, Alexander Palshin, Nikolai Michail, Petrov Field study on currents in a shallow, ice‐covered lake |
topic_facet |
Oceanography Hydrology Water Resources |
description |
A field study on current structure and circulation characteristics in Lake Vendyurskoe, a small, shallow, icecovered lake in Karelia, Russia, is presented. The current velocity magnitudes were generally found to be small. The most pronounced currents had an oscillating character, with velocity amplitudes on the order of millimeters per second. The oscillation period, obtained from spectral density calculations, corresponded to that of a barotropic uninodal seiche. The seichelike nature of the current oscillations was supported by the results from analysis of icelevel fluctuations, giving identical periods and a phase shift of one‐fourth the period between the two types of oscillations. Mean currents measured during the winter were on the order of millimeters per second. Because Lake Vendyurskoe does not have any significant river inflow or outflow during winter, the most probable cause of these currents is horizontal temperature (pressure) gradients. Scaling analysis indicated that these currents are geostrophic. This was supported by theoretical estimates, based on observed horizontal temperature gradients, being of the same order as the observed currents. The mean current velocities increased considerably after spring convection from <1 to several millimeters per second. |
format |
Article in Journal/Newspaper |
author |
Malm, Joakim Bengtsson, Lars Arkady, Terzhevik Pjotr, Boyarinov Glinsky, Alexander Palshin, Nikolai Michail, Petrov |
author_facet |
Malm, Joakim Bengtsson, Lars Arkady, Terzhevik Pjotr, Boyarinov Glinsky, Alexander Palshin, Nikolai Michail, Petrov |
author_sort |
Malm, Joakim |
title |
Field study on currents in a shallow, ice‐covered lake |
title_short |
Field study on currents in a shallow, ice‐covered lake |
title_full |
Field study on currents in a shallow, ice‐covered lake |
title_fullStr |
Field study on currents in a shallow, ice‐covered lake |
title_full_unstemmed |
Field study on currents in a shallow, ice‐covered lake |
title_sort |
field study on currents in a shallow, ice‐covered lake |
publisher |
ASLO |
publishDate |
1998 |
url |
https://lup.lub.lu.se/record/5c677bd1-a57e-47ea-a58b-2bfe4fcf5ba8 https://doi.org/10.4319/lo.1998.43.7.1669 |
genre |
karelia* |
genre_facet |
karelia* |
op_source |
Limnology and Oceanography; 43(7), pp 1669-1679 (1998) ISSN: 1939-5590 |
op_relation |
https://lup.lub.lu.se/record/5c677bd1-a57e-47ea-a58b-2bfe4fcf5ba8 http://dx.doi.org/10.4319/lo.1998.43.7.1669 scopus:0031773679 |
op_doi |
https://doi.org/10.4319/lo.1998.43.7.1669 |
container_title |
Limnology and Oceanography |
container_volume |
43 |
container_issue |
7 |
container_start_page |
1669 |
op_container_end_page |
1679 |
_version_ |
1766054209052999680 |