Best Simulation Always No. 1 AND dotty plots
tauksais
Dear Karim, how do I solve this issue that I am facing?
Despite running multiple simulations, whether it be 10 or 100, I consistently encounter the issue where the best simulation result is always ranked as number 1, indicating a lack of variability or potential error in the simulation process.
(I have installed swat2012.exe into my swatcup project folder and renamed as SWAT as well!)
Goal_type= PBIAS No_sims= 10 Best_sim_no= 1 Best_goal = 1.000000e+002
Parameter_Name Fitted_Value Min_value Max_value
1:V__CN2.mgt 44.450001 35.000000 98.000000
2:V__ALPHA_BF.gw 0.250000 0.000000 1.000000
3:V__GW_DELAY.gw 135.000000 30.000000 450.000000
4:V__GWQMN.gw 1.700000 0.000000 2.000000
Additionally, the 95PPU (95% Prediction Uncertainty) plot only displays the observed data, failing to show the necessary range of simulated data
I checked my input files and file.cio and have input the data sets correct to my knowledge including dataset such as observed flow date and other parameters.
General Information/Watershed Configuration:
fig.fig
34 | NBYR : Number of years simulated
1986 | IYR : Beginning year of simulation
1 | IDAF : Beginning julian day of simulation
365 | IDAL : Ending julian day of simulation
Special Projects:
0 | ISPROJ: special project: 1=repeat simulation
0 | ICLB: auto-calibration option: 0=no, 1=yes
| CALFILE: auto-calibration parameter file
Output Information:
1 | IPRINT: print code (month, day, year)
3 | NYSKIP: number of years to skip output printing/summarization
0 | ILOG: streamflow print code: 1=print log of streamflow
0 | IPRP: print code for output.pst file: 1= print pesticide output
output.rch : swat output file name
1 : number of variables to get
7 : variable column number(s) in the swat output file (as many as the above number)
19 : total number of reaches (subbasins) in the project
1 : number of reaches (subbasins) to get for the first variable
19 : reach (subbasin) numbers for the first variable
1989 : beginning year of simulation not including the warm up period
1999 : end year of simulation
1 : time step (1=daily, 2=monthly, 3=yearly)
1 : number of observed variables
8 : Objective function type, 1=mult,2=sum,3=r2,4=chi2,5=NS,6=br2,7=ssqr,8=PBIAS,9=KGE,10=RSR,11=MNS
0.5 : min value of objective function threshold for the behavioral solutions
1 : if objective function is 11=MNS (modified NS),indicate the power, p.
FLOW_OUT_19 : this is the name of the variable and the subbasin number to be included in the objective function
1 : weight of the variable in the objective function
-1 : Dynamic flow separation. Not considered if -1. If 1, then values should be added in the forth column below after observations
-1 : constant flow separation, threshold value. (not considered if -1)
1 : if constant separation of signal is considered, this is weight of the smaller values in the objective function
1 : if constant separation of signal is considered, this is weight of the larger values in the objective function
10 : percentage of measurement error
3652 : number of data points for this variable as it follows below. First column is a sequential number from beginning
: of the simulation, second column is variable name and date (format arbitrary), third column is variable value.
1 FLOW_OUT_1_1990 1.476
2 FLOW_OUT_2_1990 1.347
3 FLOW_OUT_3_1990 1.306
4 FLOW_OUT_4_1990 1.196
5 FLOW_OUT_5_1990 1.048
6 FLOW_OUT_6_1990 0.9925
7 FLOW_OUT_7_1990 0.8402
8 FLOW_OUT_8_1990 0.8189
9 FLOW_OUT_9_1990 0.8133
10 FLOW_OUT_10_1990 0.8011
11 FLOW_OUT_11_1990 0.74……….
And I don’t think my simulated flow data is being read despite me providing the correct TXTINOUT folder
FLOW_OUT_19
observed simulated
1.4760 0.0000
1.3470 0.0000
1.3060 0.0000
1.1960 0.0000
1.0480 0.0000
0.9925 0.0000
0.8402 0.0000
0.8189 0.0000
0.8133 0.0000
0.8011 0.0000
0.7480 0.0000…..
