Impact model: GOTM

The General Ocean Turbulence Model (GOTM) is a 'state-of-the-art' turbulence model for natural waters. Its is a full-fledged 1D water column model with a very extended configuration possibilities including coupling to a collection of bio-geochemical models.

Lakes (local)
Contact Person

Information for the model GOTM 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: 5.3
Reference Paper: Main Reference: Burchard H, Bolding K, Kühn W, Meister A, Neumann T, Umlauf L et al. Description of a flexible and extendable physical–biogeochemical model system for the water column. Journal of Marine Systems,61,180-211,2006
Person Responsible For Model Simulations In This Simulation Round: Tadhg Moore
Spatial Aggregation: lake
Additional Spatial Aggregation & Resolution Information: Point data. 1-D lake hydrodynamics model for different lakes.
Temporal Resolution Of Input Data: Climate Variables: daily
Input data sets used
Additional Information About Input Variables: Cloud cover was calculated using equations from Martin & McCutcheon (1999) which used latitude, air temperature, relative humidity and short wave radiation. Short wave radiation was disaggregated to an hourly time step using equations within the GOTM model which used cloud cover, time, latitude and longitude.
Was A Spin-Up Performed?: Yes
Spin-Up Design: Replicated the first two years of the data and used that prior to long-term simulations.
Extreme Events & Disturbances
Key Challenges: The meteorological data is at a daily timescale and within lakes extreme events and disturbances occur at sub-daily time scales.
Was The Model Calibrated?: True
Which Years Were Used For Calibration?: Varied from lake to lake depending on the availability of lake data.
Which Dataset Was Used For Calibration?: EWEMBI