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Lake variables
MyLake model
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Climate models
WSFS Hydrological model
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Lake variables simulated for:

1. Reference period 1970 - 1990
2. Future 2071 - 2100 with
   
   • emission scenarios A2 and B2 and
     
   • climate model output from HadCm3 and EH4OPYC

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Values for the lake variables are obtained with the one-dimensional model of lake physics MyLake (Saloranta and Anderssen 2004).

MyLake uses information on

• Lake latitude
  
• Volume and depth distribution
• Water transparency
• Solar radiation
• Rainfall
• Cloudiness
• Air humidity
• Air temperature
• Air pressure
• Wind velocity
• Inflow and outflow
  

The output of MyLake are the variables

• Formation and decay of ice cover
• Ice cover thickness
  
• Water temperature at given depths
• Depth of thermocline

Two types of lakes

These variables are calculated with model parameters corresponding to both a shallow lake (case study lake Halsj?rvi) and a deep Lake (case study lake P??j?rvi).

Lake locations: South and North Finland

For comparing the effects of climate change between northern and southern lakes in Finland the two applications were conducted also in such a way that both lakes were placed at Sodankyl? location where again good meteorological data were available.

References

Saloranta, T. M., and T. Andersen (2004), MyLake v. 1.1: technical documentation & user?s guide, NIVA-report 4838, 44 pp., Norwegian Institute for Water Resesarch.

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