The phrase "validation period" is correct and usable in written English.
It is often used to refer to a period of time in which something is confirmed or checked to be valid or accurate. For example, "I must submit my claim before the end of the 10-day validation period."
The coefficient of determination is used to validate the performance of the model over the validation period.
Groundwater levels at 18 observation wells were simulated for the validation period.
Results from two simulation periods are presented: model validation period and a heatwave case study.
For the validation period, the advantages of the JBC method are greatly reduced as the performance becomes dependent on the watershed, GCM and hydrological metric considered.
The SWAT model predicted the streamflow at the outlet of the watershed, with monthly and daily Nash-Sutcliffe efficiencies of 0.75 and 0.60 during the validation period.
Monitoring data on nitrate and total nitrogen (TN) was well reproduced, although TN in the hypolimnion during the validation period was overestimated.
This makes it possible to reuse generic software modules that are well documented and tested, resulting decreased verification and validation period and development cost.
Root-mean-square-errors (RMSE), used to quantify the model error, were overall similar for the calibration and the validation period.
The overall worth of the CRRS over the second best commonly used regionalization approach were also found to be 10%and14%4% during the calibration and 7% and 4% during the validation period in the GRB and LTB, respectively.
With the exception of Blue River basin, the overall model performance for the validation period remains good to very good, indicating that the model is able to simulate the relevant hydrologic processes in the basins accurately.
For the validation period, Percent Bias (PBIAS) values were >100% with the UC model for all gages, the values were between 0% and 100% with the OC model and within 20% with the SC model.
