title: Winter thermal and ice regimes of small Karelian lakes against the background of regional climatic variability
metadata.name: dc.contributor.author
metadata.value: Zdorovennova, Galina E.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Golosov, Sergei D.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Palshin, Nikolai I.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Zverev, Ilya S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Efremova, Tatiana V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Terzhevik, Arkady Yu.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Zdorovennov, Roman E.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Bogdanov, Sergei R.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Fedorova, Irina V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2022-10-03T13:03:17Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2022-10-03T13:03:17Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2022-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Zdorovennova, G. E., Golosov, S. D., Palshin, N. I., Zverev, I. S., Efremova, T. V., Terzhevik, A. Yu., Zdorovennov, R. E., Bogdanov, S. R., Fedorova I. V. (2022). Winter thermal and ice regimes of small Karelian lakes against the background of regional climatic variability. Vestnik of Saint Petersburg University. Earth Sciences, 67 (1), 138–155. https://doi.org/10.21638/spbu07.2022.108 (In Russian)
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2022.108
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/38054
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: This article investigates regularities of thermal and ice regimes of three small lakes of Karelia
  under current climatic conditions. Data of measurements of water temperature at autonomous
  stations and results of numerical calculations of the dates of ice-on and ice-off and the
  thickness of ice in these lakes using the one-dimensional parameterized model FLake in the
  anomalously warm winter season of 2019–2020 are analyzed. Data obtained are compared
  with long-term values over 1994–2019. The dates of the ice-on and ice-off on the lakes were
  quite close; however, on two larger lakes, intermediate ice destruction was observed at the
  beginning of winter, due to which the duration of the ice season differed between lakes by
  two weeks. The winter months of 2019–2020 were 6.4–9.4 °C warmer than the baseline, which
  was reflected in a noticeably smaller ice thickness on the lakes compared to previous years of
  measurements (40–48 cm at the end of March 2020 compared to the values in mid-April in
  1994–2004 — 65–85 cm and in 2005–2018 — 50–65 cm). The decrease in ice thickness contributed
  to an early onset (mid-March) and long duration (more than five weeks) of spring
  subglacial convection. The model calculation, taking into account the atmospheric impact
  based on the ERA-5 re-analysis, reproduced the main features of the ice regime of the lakes,
  including the intermediate destruction of ice at the beginning of winter on two larger lakes.
  Significant regression relationships have been obtained between the dates of ice-on and ice-off
  on Lake Vendyurskoe, the dates of the onset and duration of spring under-ice convection, and
  the characteristics of the regional climate of southern Karelia (air temperature and the number
  of days with thaw in winter and spring months) for 1994–2020. The relationship between the
  dates of ice-on and the water temperature in the lake in winter is shown.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The study was carried out within the framework of the state assignment of the Northern water
  problems Institute, Federal Research Center "Karelian Scientific Center of the Russian Academy of Sciences".
  The expeditionary research was carried out with the financial support of the RFBR grant No. 18-05-60291
  “Adaptation of the Arctic limnosystems to rapid climate change”.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 67; Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: water temperature
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: ice regime
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: climate variability
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: small lakes
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: under-ice convection
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: FLake model
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Winter thermal and ice regimes of small Karelian lakes against the background of regional climatic variability
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 08.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/38054/1/08.pdf
resources.format: Adobe PDF
resources.size: 2,76 MB