CONTENTS
CHAPTER 1-SWAT INPUT DATA: OVERVIEW
1.1 WATERSHED CONFIGURATION
1.1.1 SUBBASINS
1.1.2 HYDROLOGIC RESPONSE UNITS
1.1.3 REACH/MAIN CHANNELS
1.1.4 TRIBUTARY CHANNELS
1.1.5 PONDS/WETLANDS/RESERVOIRS
1.1.6 POINT SOURCES
1.2 OVERVIEW OF INPUT FILES
1.3 MODEL INPUTS BY TYPE
CHAPTER 2-SWAT INPUT DATA: WATERSHED CONFIGURATION
2.1 DISCRETIZATION SCHEMES
2.2 WATERSHED CONFIGURATION FILE (.FIG)
2.2.1 INCORPORATION OF COMMENTS
2.2.2 COMMAND LINES
2.2.2.1 FINISH COMMAND (0)
2.2.2.2 SUBBASIN COMMAND (1)
2.2.2.3 ROUTE COMMAND (2)
2.2.2.4 ROUTRES COMMAND (3)
2.2.2.5 TRANSFER COMMAND (4)
2.2.2.6 ADD COMMAND (5)
2.2.2.7 RECHOUR COMMAND (6)
2.2.2.8 RECMON COMMAND (7)
2.2.2.9 RECYEAR COMMAND (8)
2.2.2.10 SAVE COMMAND (9)
2.2.2.11 RECDAY COMMAND (10)
2.2.2.12 RECCNST COMMAND (11)
2.2.2.13 STRUCTURE COMMAND (12)
2.2.2.14 APEX COMMAND (13)
2.2.2.15 SAVECONC COMMAND (14)
2.2.2.16 AUTOCAL COMMAND (16)
2.3 REFERENCES
CHAPTER 3-SWAT INPUT DATA: FILE.CIO
3.1 TITLE SECTION
3.2 GENERAL INFORMATION/WATERSHED CONFIGURATION
3.3 CLIMATE
3.4 WATERSHED MODELING OPTIONS
3.5 DATABASE FILES
3.6 SPECIAL PROJECTS
3.7 OUTPUT INFORMATION
CHAPTER 4-SWAT INPUT DATA: .BSN
4.1 TITLE
4.2 MODELING OPTIONS: LAND AREA
WATER BALANCE
SURFACE RUNOFF
NUTRIENT CYCLING
PESTICIDE CYCLING
ALGAE/CBOD/DISSOLVED OXYGEN
BACTERIA
4.3 MODELING OPTIONS: REACHES
REFERENCES
CHAPTER 5-SWAT INPUT DATA: .SUB
CHAPTER 6-SWAT INPUT DATA: .PCP
6.1 DAILY PRECIPITATION DATA
6.2 SUB-DAILY PRECIPITATION DATA
CHAPTER 7-SWAT INPUT DATA: .TMP
CHAPTER 8 SWAT INPUT DATA: .SLR
CHAPTER 9-SWAT INPUT DATA: .WND
CHAPTER 10-SWAT INPUT DATA: .HMD
CHAPTER 11-SWAT INPUT DATA: .PET
CHAPTER 12-SWAT INPUT DATA: .WGN
CHAPTER 13-SWAT INPUT DATA: .CST
CHAPTER 14-SWAT INPUT DATA: PLANT.DAT
CHAPTER 15-SWAT INPUT DATA: TILL.DAT
CHAPTER 16-SWAT INPUT DATA: PEST.DAT
CHAPTER 17-SWAT INPUT DATA: FERT.DAT
CHAPTER 18-SWAT INPUT DATA: URBAN.DAT
REFERENCES
CHAPTER 19-SWAT INPUT DATA: .HRU
19.1 TITLE
19.2 TOPOGRAPHIC CHARACTERISTICS
19.3 LAND COVER CHARACTERISTICS
19.4 WATER CYCLING
19.5 EROSION
19.6 DEPRESSIONAL STORAGE AREA/POTHOLE
19.7 URBAN BPM REDUCTIONS
19.8 REFERENCES
CHAPTER 20-SWAT INPUT DATA: .MGT
20.1 GENERAL MANAGEMENT VARIABLES
20.1.1 INITIAL PLANT GROWTH PARAMETERS
20.1.2 GENERAL MANAGEMENT PARAMETERS
20.1.3 URBAN MANAGEMENT PARAMETERS
20.1.4 IRRIGATION MANAGEMENT PARAMETERS
20.1.5 TILE DRAIN MANAGEMENT PARAMETERS
20.1.6 MANAGEMENT OPERATIONS
20.2 SCHEDULED MANAGEMENT OPERATIONS
20.2.1 PLANTING/BEGINNING OF GROWING SEASON
20.2.2 IRRIGATION OPERATION
20.2.3 FERTILIZER APPLICATION
20.2.4 PESTICIDE APPLICATION
20.2.5 HARVEST AND KILL OPERATION
20.2.6 TILLAGE OPERATION
20.2.7 HARVEST OPERATION
20.2.8 KILL OPERATION
20.2.9 GRAZING OPERATION
20.2.10 AUTO IRRIGATION INITIALIZATION
20.2.11 AUTO FERTILIZATION INITIALIZATION
20.2.12 STREET SWEEPING OPERATION
20.2.13 RELEASE/IMPOUND OPERATION
20.2.14 CONTINUOUS FERTILIZER OPERATION
20.2.15 CONTINUOUS PESTICIDE OPERATION
20.2.16 BURN OPERATION
20.2.17 END OF YEAR OPERATION
20.3 REFERENCES
CHAPTER 21-SWAT INPUT DATA: .WUS
CHAPTER 22-SWAT INPUT DATA: .SOL
REFERENCES
CHAPTER 23-SWAT INPUT DATA: .CHM
CHAPTER 24-SWAT INPUT DATA: .GW
REFERENCES
CHAPTER 25-SWAT INPUT DATA: .RTE
REFERENCES
CHAPTER 26-SWAT INPUT DATA: .WWQ
REFERENCES
CHAPTER 27- SWAT Input Data: .SWQ
References
CHAPTER 28- SWAT INPUT DATA: .PND
REFERENCES
CHAPTER 29-SWAT INPUT DATA: .RES
29.1 RESERVOIR FILE
29.2 DAILY RESERVOIR OUTFLOW FILE
29.3 MONTHLY RESERVOIR OUTFLOW FILE
CHAPTER 30-SWAT INPUT DATA: .LWQ
REFERENCES
CHAPTER 31-SWAT INPUT DATA: MEASURED
31.1 HOURLY RECORDS (RECHOUR .DAT FILE)
31.2 DAILY RECORDS (RECDAY .DAT FILE)
31.3 MONTHLY RECORDS (RECMON .DAT FILE)
31.4 YEARLY RECORDS (RECYEAR .DAT FILE)
31.5 AVERAGE ANNUAL RECORDS (RECCNST .DAT FILE)
CHAPTER 32-SWAT OUTPUT DATA: PRIMARY OUTPUT FILES
32.1 INPUT SUMMARY FILE (INPUT.STD)
32.2 OUTPUT SUMMARY FILE (OUTPUT.STD)
32.3 HRU OUTPUT FILE (OUTPUT.HRU)
32.4 SUBBASIN OUTPUT FILE (OUTPUT.SUB)
32.5 MAIN CHANNEL OUTPUT FILE (OUTPUT.RCH)
32.6 HRU IMPOUNDMENT OUTPUT FILE(OUTPUT.WTR)
32.7 RESERVOIR OUTPUT FILE (OUTPUT.RSV)
32.8 SEDIMENT LOADS OUTPUT FILE (OUTPUT.SED)
32.9 MANAGEMENT OUTPUT FILE (OUTPUT.MGT)
32.10 SOIL OUTPUT FILE (OUTPUT.SOL)
32.11 SNOW AT ELEVATION BAND OUTPUT FILE (SNOWBAND.OUT)
32.12 PESTICIDE OUTPUT FILE (OUTPUT.PST)
32.13 HOURLY OUTPUT FILE (HOURQ.OUT)
32.14 CHANNEL VELOCITY OUTPUT FILE (CHANVEL.OUT)
32.15 WATER DEPTH OUTPUT FILE (WATRDEP.OUT)
32.16 CARBON OUTPUT FILE (CSWAT_PROFILE.TXT)
CHAPTER 33-SWAT INPUT DATA: .OPS
33.1 SCHEDULED MANAGEMENT OPERATIONS
33.1.1 TERRACING
33.1.2 TILE DRAINAGE OPERATION
33.1.3 CONTOUR PLANTING
33.1.4 FILTER STRIPS
33.1.5 STRIP CROPPING
33.1.6 FIRE OPERATION
33.1.7 GRASS WATERWAYS OPERATION
33.1.8 PLANT PARAMETER UPDATE
33.2 REFERENCES
CHAPTER 34-SWAT INPUT DATA: SEPTWQ.DAT
REFERENCES
CHAPTER 35-SWAT INPUT DATA: .SEP
REFERENCES
CHAPTER 36-SWAT INPUT DATA: ATMO.ATM
REFERENCES
CHAPTER 37-SWAT INPUT DATA: LUP.DAT
37.1 LAND USE UPDATE FILE (LUP.DAT)
37.2 DESCRIPTION OF FNAM FILE
CHAPTER 38 SWAT:CALIBRATION
38.1 GIS INTERFACES AND CALIBRATION
38.2 GENERAL CALIBRATION PROCEDURE
38.3 CALIBRATION OF WATER BALANCE AND STREAM FLOW
38.3.1 WATER BALANCE CALIBRATION
38.3.1.1 BASIC WATER BALANCE & TOTAL FLOW CALIBRATION
38.3.1.2 TEMPORAL FLOW CALIBRATION
38.3.1.3 SPATIAL FLOW CALIBRATION
38.4 SEDIMENT
38.4.1 CHECK RESERVOIR/POND SIMULATION
38.4.2 CALIBRATE SUBBASIN LOADINGS
38.4.3 CALIBRATE CHANNEL DEGRADATION/DEPOSITION
38.5 NUTRIENTS
38.5.1 CALIBRATE NUTRIENT LOADINGS (ALL NUTRIENTS)
38.5.2 CALIBRATE NUTRIENT LOADINGS (SPECIFIC NUTRIENTS)
38.5.3 CALIBRATE IN-STREAM NUTRIENT PROCESSES
CHAPTER 39-SWAT INPUT DATA: .SNO
APPENDIX A: MODEL DATABASES
A.1 LAND COVER/PLANT GROWTH DATABASE
A.1.1 LAND COVER/PLANT TYPES IN DATABASE
A.1.2 TEMPERATURE RESPONSES
A.1.3 LEAF AREA DEVELOPMENT
A.1.4 ENERGY-BIOMASS CONVERSION
A.1.5 LIGHT INTERCEPTION
A.1.6 STOMATAL CONDUCTANCE
A.1.7 CANOPY HEIGHT/ROOT DEPTH
A.1.8 PLANT NUTRIENT CONTENT
A.1.9 HARVEST
A.1.10 USLE C FACTOR
A.1.11 RESIDUE DECOMPOSITION
A.1.12 MINIMUM LAI/BIOMASS DURING DORMANCY
A.2 TILLAGE DATABASE
A.3 PESTICIDE DATABASE
A.3.1 WATER SOLUBILITY
A.3.2 SOIL ADSORPTION COEFFICIENT
A.3.3 SOIL HALF-LIFE
A.3.4 FOLIAR HALF-LIFE
A.3.5 WASH-OFF FRACTION
A.3.6 APPLICATION EFFICIENCY
A.4 FERTILIZER DATABASE
A.4.1 COMMERCIAL FERTILIZERS
A.4.2 MANURE
A.5 URBAN DATABASE
A.5.1 DRAINAGE SYSTEM CONNECTEDNESS
A.5.2 CURB LENGTH DENSITY
A.5.3 WASH-OFF COEFFICENT
A.5.4 MAXIMUM SOLID ACCUMULATION AND RATE OF ACCUMULATION
A.5.5 NUTRIENT CONCENTRATION IN SOLIDS
A.5.6 CURVE NUMBER
A.6 REFERENCES
APPENDIX B: EXAMPLE WATERSHED CONFIGURATIONS
B.1 SUBWATERSHED DISCRETIZATION
B.1.1 SUBWATERSHED DISCRETIZATION: 3 SUBBASINS
B.1.2 SUBWATERSHED DISCRETIZATION: SAVING SIMULATION RESULTS FOR DOWNSTREAM RUNS
B.1.3 SUBWATERSHED DISCRETIZATION: INCORPORATING POINT SOURCE/UPSTREAM SIMULATION DATA
B.1.4 SUBWATERSHED DISCRETIZATION: INCORPORATING RESERVOIRS
B.1.5 SUBWATERSHED DISCRETIZATION: SAVING SIMULATION RESULTS FOR ONE LOCATION
B.2 HILLSLOPE DISCRETIZATION
B.2.1 HILLSLOPE DISCRETIZATION: MODELING A DAIRY OPERATION
B.2.2 HILLSLOPE DISCRETIZATION: COMBINING WITH SUBWATERSHED DISCRETIZATION
B.3 GRID CELL DISCRETIZATION
B.3.1 GRID CELL DISCRETIZATION: 9 CELLS
APPENDIX C EXAMPLE MANAGEMENT SCENARIOS
C.1 DEFINING OPERATIONS FOR A LAND USE
C.2 SCHEDULING OF OPERATIONS
C.2.1 SUBWATERSHED DISCRETIZATION: 3 SUBBASINS
APPENDIX D: SOILS DATABASE
D.1 HYDROLOGIC SOIL GROUPS
D.2 SCHEDULING OF OPERATIONS