HYPE Model Documentation

The file is located in the modeldir folder. The file is used for the calculation of regional estimated parameters by regression. This is used when model option regestimate is set in info.txt. The file contains coefficients for regression equations for each group. Which catchments belong to which group is given in CatchGroup.txt. The catchment descriptors which are being regressed is given in CatchDes.txt.

The first row of the reg_par.txt file gives the number of groups. Then follow two rows for each parameter and group. Group one is given first, then group two etc, each group with all its parameters. The first row of each parameter contains the coefficients and the second row the corresponding catchment descriptor to apply the coefficient to.

The following parameters are possible to estimate with regression: lp, cevpam, cevpph, rivvel, damp, tcalt, tcelevadd, tempcorr, pcelevmax, pcelevadd, pcelevth, cevpcorr, rrcscorr, rrcs3, pcurain, and pcusnow.

Example of a reg_par.txt file structure:

3
tcalt	0.6
tcalt	1
cevpcorr	0.1	-0.1	-0.2	0.3
cevpcorr	1	8	9	10
tcalt	0.6
tcalt	1
cevpcorr	0.1	0.0	-0.1	0.4
cevpcorr	1	8	9	10
tcalt	0.5
tcalt	1
cevpcorr	-0.1	0.3
cevpcorr	8	10