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.

ISIMIP2b

Confirm data for simulation round ISIMIP2b

Person responsible for model simulations in this simulation round

Tadhg Moore: tadhgm@vt.edu, Virginia Tech (USA)

Bronwyn Woodward: bronwyn.woodward@uwa.edu.au, University of Western Australia (Australia)

Additional persons involved: Tadhg Moore

Output Data

Experiments: I, II, III, VIII
Climate Drivers: None
Date: 2019-11-07

Basic information

Model Version: GOTM 5.3 lake branch

Simulation Round Specific Description: * Data in embargo period, not yet publicly available.

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

Resolution

Spatial aggregation: lake

Temporal resolution of input data: climate variables: daily

Additional temporal resolution information: The model integrates on a hourly timestep.

Input data

Simulated atmospheric climate data sets used: HadGEM2-ES, GFDL-ESM2M, MIROC5

Observed atmospheric climate data sets used: EWEMBI

Climate variables: ta, hurs, uas, vas, rhs, psl, rsds, ps, pr

Additional information about input variables: Cloud cover was calculated using Martin and McCutcheon (1999). Daily short-wave radiation was computed using the method from the GOTM model.

Spin-up

Was a spin-up performed?: Yes

Spin-up design: Two years data was replicated and used to spin-up the model.

Extreme Events & Disturbances

Key challenges: Using daily resolution data as key disturbances occur at a sub-daily time step.

Calibration

Was the model calibrated?: Yes

Which years were used for calibration?: The years which we had observed lake temperature profiles.

Which dataset was used for calibration?: EWEMBI