Master File (file.cio)

This file lists the names of all input files used in a simulation run. The files are grouped in different categories and there is one line for each category. The first column lists the names of the categories. The number of columns per line depends on the number of files in a category. Most files are required for all SWAT+ runs, i.e. they have to be listed in file.cio and the corresponding file has to be present in the TxtInOut folder of the SWAT+ project. There are also some optional files that are only required for specific SWAT+ applications. The category names and their files are listed below.

If a file is not being used for a SWAT+ application, 'null' should be entered instead of the filename.

Simulation

1. time.sim

2. print.prt

3. object.prt

4. object.cnt

5. constituents.cs

Basin

1. codes.bsn

2. parameters.bsn

Climate

1. weather-sta.cli

2. weather-wgn.cli

3. wind-dir.cli (currently not used)

4. pcp.cli

5. tmp.cli

6. slr.cli

7. hmd.cli

8. wnd.cli

9. atmo.cli

Connect

1. hru.con
2. hru-lte.con
3. rout_unit.con
4. gwflow.con (a description of the gwflow module and all related input files will be added asap)

5. aquifer.con
6. aquifer2d.con (currently not used)

7. channel.con (currently not used)

8. reservoir.con
9. recall.con
10. exco.con
11. delratio.con
12. outlet.con
13. chandeg.con

Channel

1. initial.cha
2. channel.cha (currently not used)

3. hydrology.cha (currently not used)

4. sediment.cha (currently not used)

5. nutrients.cha
6. channel-lte.cha
7. hyd-sed-lte.cha
8. temperature.cha

Reservoir

1. initial.res
2. reservoir.res
3. hydrology.res
4. sediment.res
5. nutrients.res
6. weir.res
7. wetland.wet
8. hydrology.wet

Routing Unit

1. rout_unit.def
2. rout_unit.ele
3. rout_unit.rtu
4. rout_unit.dr (currently not used)

HRU

1. hru-data.hru
2. hru-lte.hru

Export Coefficient

1. exco.exc

2. exco_om.exc

3. exco_pest.exc (currently not used)

4. exco_path.exc (currently not used)

5. exco_hmet.exc (currently not used)

6. exco_salt.exc (currently not used)

Recall

1. recall.rec

Delivery Ratio

1. del_ratio.del (currently not used)

2. dr_om.del (currently not used)

3. dr_pest.del (currently not used)

4. dr_path.del (currently not used)

5. dr_hmet.del (currently not used)

6. dr_salt.del (currently not used)

The delivery ratio files will be removed in future versions of SWAT+.

Aquifer

1. initial.aqu
2. aquifer.aqu

Herd

1. animal.hrd (currently not used)

2. herd.hrd (currently not used)

3. ranch.hrd (currently not used)

There are no plans to work on the animal herd module in the foreseeable future unless there is a demand for it in the user community.

Water Rights

1. water_allocation.wro

The SWAT+ Water Allocation Module is work in progress and not fully functional in the current revision. A description of the general approach as well as input/output files will be added before the release of the next SWAT+ revision.

Link

1. chan-surf.lin

2. aqu_cha.lin

Hydrology

1. hydrology.hyd
2. topography.hyd
3. field.fld

Structural

1. tiledrain.str
2. septic.str
3. filterstrip.str
4. grassedww.str
5. bmpuser.str

HRU Databases

1. plants.plt
2. fertilizer.frt
3. tillage.til
4. pesticide.pes
5. pathogens.pth (currently not used)

6. metals.mtl (currently not used)

7. salt.slt (currently not used)

8. urban.urb
9. septic.sep
10. snow.sno

The salt routines are work in progress and will be added soon. However, there are no plans to work on the pathogen and metal routines in the foreseeable future unless there is a demand for it in the user community.

Operation Scheduling

1. harv.ops
2. graze.ops
3. irr.ops
4. chem_app.ops
5. fire.ops
6. sweep.ops

Land Use Management

1. landuse.lum
2. management.sch
3. cntable.lum
4. cons_practice.lum
5. ovn_table.lum

Change

1. cal_parms.cal

2. calibration.cal

3. codes.sft

4. wb_parms.sft

5. water_balance.sft

6. ch_sed_budget.sft (currently not used)

7. ch_sed_parms.sft (currently not used)

8. plant_parms.sft

9. plant_gro.sft

Initial

1. plant.ini
2. soil_plant.ini
3. om_water.ini

4. pest_hru.ini

5. pest_water.ini

6. path_hru.ini (currently not used)

7. path_water.ini (currently not used)

8. hmet_hru.ini (currently not used)

9. hmet_water.ini (currently not used)

10. salt_hru.ini (currently not used)

11. salt_water.ini (currently not used)

Soils

1. soils.sol
2. nutrients.sol
3. soils_lte.sol (currently not used)

Conditional

1. lum.dtl
2. res_rel.dtl

3. scen_lu.dtl

4. flo_con.dtl

Regions

1. ls_unit.ele
2. ls_unit.def
3. ls_reg.ele

4. ls_reg.def

5. ls_cal.reg

6. ch_catunit.ele

7. ch_catunit.def

8. ch_reg.def

9. aqu_catunit.ele

10. aqu_catunit.def

11. aqu_reg.def

12. res_catunit.ele

13. res_catunit.def

14. res_reg.def

15. rec_catunit.ele

16. rec_catunit.def

17. rec_reg.def

The definition of regions in SWAT+ besides the Landscape Units will be revised in the near future and a description of the region files will be added to this documentation as soon as that has happened.

The last five rows in file.cio are used to specify the climate file directories if these are stored in a folder other than the project TxtInOut folder.

If the climate files are stored in the project TxtInOut folder, 'null' should be entered instead of the directory.