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Comparison between two extreme NAO winters and consequences on the thermal regime of Lake Vendyurskoe, Karelia

Ali Maher, Osama LU ; Bertacchi Uvo, Cintia LU and Bengtsson, Lars LU (2005) In Journal of Hydrometeorology 6(5). p.775-783
Abstract
For 10 consecutive winters, measurements were carried out in Lake Vendyurskoe, Karelia, Russia. The aim of these measurements was to investigate some of the physical processes in this small shallow lake during its ice-covered period. Detailed measurements of ice thickness and condition, snow thickness, water temperature, salt content, and currents were developed into a database. Within this database are the winters 1994/95 and 1995/96, which are characterized by a very sharp change between positive and negative phases of the North Atlantic Oscillation (NAO). This note investigates and compares the effects of these two NAO phases on the regional climate and their relation to the thermal regime of Lake Vendyurskoe. It became clear that the... (More)
For 10 consecutive winters, measurements were carried out in Lake Vendyurskoe, Karelia, Russia. The aim of these measurements was to investigate some of the physical processes in this small shallow lake during its ice-covered period. Detailed measurements of ice thickness and condition, snow thickness, water temperature, salt content, and currents were developed into a database. Within this database are the winters 1994/95 and 1995/96, which are characterized by a very sharp change between positive and negative phases of the North Atlantic Oscillation (NAO). This note investigates and compares the effects of these two NAO phases on the regional climate and their relation to the thermal regime of Lake Vendyurskoe. It became clear that the ice-covered period length did not vary much from one winter to the other; however, a large difference was observed in the maximum average ice cover thickness and in the average water temperature at ice formation ( e. g., larger thickness and colder water temperature during the 1995/ 96 winter). (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Hydrometeorology
volume
6
issue
5
pages
775 - 783
publisher
American Meteorological Society
external identifiers
  • wos:000233288800013
  • scopus:28044451303
ISSN
1525-755X
DOI
10.1175/JHM449.1
language
English
LU publication?
yes
id
5b21082a-514f-49aa-b4d6-bf3325f87c99 (old id 213058)
date added to LUP
2007-08-07 16:06:17
date last changed
2017-01-01 04:39:19
@article{5b21082a-514f-49aa-b4d6-bf3325f87c99,
  abstract     = {For 10 consecutive winters, measurements were carried out in Lake Vendyurskoe, Karelia, Russia. The aim of these measurements was to investigate some of the physical processes in this small shallow lake during its ice-covered period. Detailed measurements of ice thickness and condition, snow thickness, water temperature, salt content, and currents were developed into a database. Within this database are the winters 1994/95 and 1995/96, which are characterized by a very sharp change between positive and negative phases of the North Atlantic Oscillation (NAO). This note investigates and compares the effects of these two NAO phases on the regional climate and their relation to the thermal regime of Lake Vendyurskoe. It became clear that the ice-covered period length did not vary much from one winter to the other; however, a large difference was observed in the maximum average ice cover thickness and in the average water temperature at ice formation ( e. g., larger thickness and colder water temperature during the 1995/ 96 winter).},
  author       = {Ali Maher, Osama and Bertacchi Uvo, Cintia and Bengtsson, Lars},
  issn         = {1525-755X},
  language     = {eng},
  number       = {5},
  pages        = {775--783},
  publisher    = {American Meteorological Society},
  series       = {Journal of Hydrometeorology},
  title        = {Comparison between two extreme NAO winters and consequences on the thermal regime of Lake Vendyurskoe, Karelia},
  url          = {http://dx.doi.org/10.1175/JHM449.1},
  volume       = {6},
  year         = {2005},
}