Calibration/Adjustment/hydrology/en

Adjustment of Calibration Parameters

For the calibration of the model, the following calibration factors are provided. These calibration parameters are listed in the model in the following views:

Kalinin-Miljukov Strand

Processing/editing the calibration parameters of the Kalinin-Miljukov strands.

Reservoir Strand

Processing/editing the calibration parameters of the reservoir strands.

Sub - Catchment

Processing/ editing the calibration parameters of the sub-catchment.

Kalinin-Miljukov Strand

View of calibration of the Kalinin Miljukov strand

In the Kalinin-Miljukov Strand view, the calibration factors are listed: factor k and factor n.See Figure View of calibration of the Kalinin Miljukov strand)

Factor k

Optimization factor of the retention constant k (Kalinin-Miljukov method)

Factor n

Optimization factor of the retention element number n (Kalinin-Miljukov method)

Reservoir Strand

View of calibrating the reservoir strands

In the Reservoir strand view, a factor (double) can be entered for the Lake Evaporation (see Figure View of calibrating the reservoir strands). The correction factor is multiplied by the Lake Evaporation value with the associated time series.

Sub-Catchments

View when calibrating the sub-catchments

The calibration parameter of sub-catchments are divided into:

• General calibration parameters
• Correction Soil parameters
• Retention and Translation parameters
• Initial conditions

(see Figure View when calibrating the sub-catchments)

General Calibration factor
Parameter	Unit	Description	Data type
Rainfall factor	[ - ]	Multiplicative correction factor of precipitation time series	Number (double)
Temperature shift	[°C]	Additive correction factor of the temperature time series number	Number(double)
Evaporation factor	[ - ]	Multiplicative factor of the evaporation time series number	Number (double)
Increase in Interflow	[mm/h]	Increase rate of Interflow	Number (double)
Max Interflow	[mm]	Maximum Interflow	Number (double)

Corrected soil parameter(Per Layer)
Parameter	Unit	Description	Data type
KZ-Factor cin	[-]	Multiplicative corrected factor of the infiltration parameters in the short term simulation	Number (double)
LZ-Factor cin	[-]	Multiplicative corrected factor of the infiltration parameters in the long term simulation	Number (double)
Factor cex	[-]	Multiplicative corrected factor of the Percolation parameters	Number (double)
Factor max. Pore volume	[-]	Multiplicative corrected factor of the maximum Pore volume	Number(double)
Initial soil moisture factor	[-]	Correction factor of soil moisture for the first calculation cycle	Number (double)
Factor nFK	[-]	Multiplicative correction factor of field capacity	Number (double)
Factor QIntf.	[-]	Multiplicative correction factor of retention of interflow	Number (double)

Retention und Translation
Parameter	Unit	Description	Data type
k QObfl.vers.	[-]	Correction factor of the retention constant of sealed areas (optional)	Number (double)
k QObfl.nat.	[-]	Correction factor of the retention constant of natural runoff (optional)	Number (double)
k QIntf.	[-]	Correction factor of the retention constant of interflow (optional)	Number (double)
k QBasis	[-]	Correction factor of the retention constant of base flow (optional)	Number (double)
k QGw	[-]	Correction factor of the retention constant of groundwater flow (optional)	Number (double)
k Q depth Gw	[-]	Correction factor of the retention constant of the deep groundwater flow (optional)	Number (double)

Initial conditions
Parameter	Unit	Description	Data type
Initial value of ground water storage	[m]	Initial water level of the aquifer	Number (double)
Initial value of interception	[mm]	Initial constant of interception storage	Number (double)

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