RunModel_Lag: proposal for a better transformation and screening of the parameters
The work of Enola Henrotin highlights some issues with the calibration of the lag model. These issues are essentially due to an inadequate transformation of the celerity parameter.
The document below summarizes these issues and proposes a new transformation and a set of screening values from experimental measurements of flow velocities in a various rivers:
Sensibility-of-celerity-parameter-on-Lag-model.html
The proposed formulas are (respectively for the transformed and the real parameter):
C_{T} = \dfrac{120}{299C_{0}} - \dfrac{3010}{299} \\
C_0 = \dfrac{120}{299 (C_T + 3010 / 299)}The proposed screening values of transformed parameter are: -9.7; -8.7; -2.0
Sources of the document: