Journal metrics

Journal metrics

  • IF value: 4.252 IF 4.252
  • IF 5-year value: 4.890 IF 5-year 4.890
  • CiteScore value: 4.49 CiteScore 4.49
  • SNIP value: 1.539 SNIP 1.539
  • SJR value: 2.404 SJR 2.404
  • IPP value: 4.28 IPP 4.28
  • h5-index value: 40 h5-index 40
  • Scimago H index value: 51 Scimago H index 51
Volume 11, issue 4 | Copyright

Special issue: Modelling lakes in the climate system (GMD/HESS inter-journal...

Geosci. Model Dev., 11, 1321-1342, 2018
https://doi.org/10.5194/gmd-11-1321-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Development and technical paper 11 Apr 2018

Development and technical paper | 11 Apr 2018

The regional climate model REMO (v2015) coupled with the 1-D freshwater lake model FLake (v1): Fenno-Scandinavian climate and lakes

Joni-Pekka Pietikäinen1, Tiina Markkanen1, Kevin Sieck2, Daniela Jacob2, Johanna Korhonen3, Petri Räisänen1, Yao Gao1, Jaakko Ahola1, Hannele Korhonen1, Ari Laaksonen1, and Jussi Kaurola1 Joni-Pekka Pietikäinen et al.
  • 1Finnish Meteorological Institute, P.O. Box 503, 00101 Helsinki, Finland
  • 2Climate Service Center Germany, Chilehaus Eingang B, Fischertwiete 1, 20095 Hamburg, Germany
  • 3Finnish Environment Institute SYKE, P.O. Box 140, 00251 Helsinki, Finland

Abstract. The regional climate model REMO was coupled with the FLake lake model to include an interactive treatment of lakes. Using this new version, the Fenno-Scandinavian climate and lake characteristics were studied in a set of 35-year hindcast simulations. Additionally, sensitivity tests related to the parameterization of snow albedo were conducted. Our results show that overall the new model version improves the representation of the Fenno-Scandinavian climate in terms of 2m temperature and precipitation, but the downside is that an existing wintertime cold bias in the model is enhanced. The lake surface water temperature, ice depth and ice season length were analyzed in detail for 10 Finnish, 4 Swedish and 2 Russian lakes and 1 Estonian lake. The results show that the model can reproduce these characteristics with reasonably high accuracy. The cold bias during winter causes overestimation of ice layer thickness, for example, at several of the studied lakes, but overall the values from the model are realistic and represent the lake physics well in a long-term simulation. We also analyzed the snow depth on ice from 10 Finnish lakes and vertical temperature profiles from 5 Finnish lakes and the model results are realistic.

Download & links
Publications Copernicus
Special issue
Download
Short summary
The regional climate model REMO was coupled with the FLake lake model to include an interactive treatment of lakes. Using this new version, the Fenno-Scandinavian climate and lake characteristics were studied. Our results show that overall the new model version improves the representation of the Fenno-Scandinavian climate in terms of 2 m temperature and precipitation and that the model can reproduce surface water temperature, ice depth and ice season length with reasonably high accuracy.
The regional climate model REMO was coupled with the FLake lake model to include an interactive...
Citation
Share