Impact model: SIMSTRAT-UoG

SimStrat-UoG is a modified version of the buoyancy-extended k- model Simstrat v1. In this diffusive model, an ice-snow routine was implemented. For global runs, lake specific parameterization was deactivated.

Sector
Lakes (global)
Region
global
Contact Person

Information for the model SIMSTRAT-UoG is provided for the simulation rounds shown in the tabs below. Click on the appropriate tab to get the information for the simulation round you are interested in.

Basic information
Model Version: Simstrat-UoG v.1
Reference Paper: Main Reference: Goudsmit G, Burchard H, Peeters F, Wüest A et al. Application of k-ϵ turbulence models to enclosed basins: The role of internal seiches. Journal of Geophysical Research: Oceans,107,3230,2003
Reference Paper: Other References:
Person Responsible For Model Simulations In This Simulation Round: Marjorie Perroud
Output Data
Experiments: I, II, II, VIII
Climate Drivers: IPSL-CM5A-LR, HadGEM2-ES, GFDL-ESM2M, MIROC5
Date: 2019-12-09
Resolution
Spatial Aggregation: regular grid
Spatial Resolution: 0.5°x0.5°
Temporal Resolution Of Input Data: Climate Variables: daily
Additional Temporal Resolution Information: Daily atmospheric forcing was disaggregated to provide 3 hourly-data as input to the model. The model time step is one hour.
Input data sets used
Simulated Atmospheric Climate Data Sets Used: IPSL-CM5A-LR, HadGEM2-ES, GFDL-ESM2M, MIROC5
Observed Atmospheric Climate Data Sets Used: EWEMBI
Climate Variables: huss, sfcWind, tas, uas, rlds, vas, rsds, ps, pr
Spin-up
Was A Spin-Up Performed?: Yes
Spin-Up Design: 30 years of spin-up (year 1661 repeted 30 times) were used to start the picontrol simulations. Historical simulations were started from the picontrol simulations (from 1861) and future simulations were started from historical simulations (thus no spin-up was needed after 1661).
Methods
Snow Melt: Ice-snow melt calculated as in Patterson and Hamblin (1988) and Hostetler (1991).
Additional questions 1
How did you initialise you lake temperature profile?: Lake temperature profile was initialized with a homogeneous 10°C profile.
How did you set lake depth?: Lake depth was based on a regridded Global Lake Data Base (GLDB; Kourzeneva, 2009);
How did you set water transparency?: Following empirical relation of extinction coefficient to lake depth by Hakanson (1995)