I /O F D - Purdue Engineering

1 TR-365. Soil and Water Assessment Tool 2010. input / output File Documentation Soil and Water Assessment Tool input / output File Documentation Version 2009. Cover photos courtesy of USDA-ARS & USDA-NRCS. Version 2009. COLLEGE OF AGRICULTURE. AND LIFE SCIENCES. TR-365. 2010. Soil and Water Assessment Tool input / output File Documentation Version 2009. By: Neitsch, Arnold, Kiniry, R. Srinivasan, Williams Grassland, Soil and Water Research Laboratory - Agricultural Research Service Blackland Research Center - Texas AgriLife Research Texas Water Resources Institute Technical Report No.

2 365. Texas A&M University System College Station, Texas 77843-2118. May 2010. TR-365. 2010. Soil and Water Assessment Tool input / output File Documentation Version 2009. Neitsch, Arnold, Kiniry, R. Srinivasan, Williams April 2009. Grassland, Soil and Water Research Laboratory - Agricultural Research Service 808 East Blackland Road, Temple, Texas 76502. Blackland Research Center - Texas AgriLife Research 720 East Blackland Road, Temple, Texas 76502. Texas Water Resources Institute Technical Report No. 365. Texas A&M University System College Station, Texas 77843-2118.

3 CONTENTS. CHAPTER 1. OVERVIEW 1. WATERSHED CONFIGURATION 2. SUBBASINS 2. HYDROLOGIC RESPONSE UNITS 2. REACH/MAIN CHANNELS 4. TRIBUTARY CHANNELS 4. PONDS/WETLANDS/RESERVOIRS 4. POINT SOURCES 5. OVERVIEW OF input FILES 6. MODEL INPUTS BY TYPE 9. CHAPTER 2. SWAT input : WATERSHED CONFIGURATION 31. DISCRETIZATION SCHEMES 32. WATERSHED CONFIGURATION FILE (.FIG) 32. INCORPORATION OF COMMENTS 33. COMMAND LINES 33. REFERENCES 58. CHAPTER 3. SWAT input : 59. TITLE SECTION 60. GENERAL INFORMATION/WATERSHED CONFIGURATION 60. CLIMATE 61. WATERSHED MODELING OPTIONS 69.

4 DATABASE FILES 70. SPECIAL PROJECTS 71. output INFORMATION 72. CHAPTER 4. SWAT input : .BSN 85. TITLE 86. MODELING OPTIONS: LAND AREA 86. WATER BALANCE 86. SURFACE RUNOFF 93. NUTRIENT CYCLING 96. PESTICIDE CYCLING 102. ALGAL/CBOD/DISSOLVED OXYGEN 102. BACTERIA 103. MODELING OPTIONS: REACHES 106. REFERENCES 117. CHAPTER 5. SWAT input : .SUB 119. CHAPTER 6. SWAT input : .PCP 133. DAILY PRECIPITATION DATA 134. SUB-DAILY PRECIPITATION DATA 136. CHAPTER 7. SWAT input : .TMP 141. CHAPTER 8. SWAT input : .SLR 145. CHAPTER 9. SWAT input : .WND 149. CHAPTER 10.

5 SWAT input : .HMD 153. CHAPTER 11. SWAT input : .PET 157. CHAPTER 12. SWAT input : .WGN 159. CHAPTER 13. SWAT input : .CST 173. CHAPTER 14. SWAT input : 181. CHAPTER 15. SWAT input : 207. CHAPTER 16. SWAT input : 209. CHAPTER 17. SWAT input : 215. CHAPTER 18. SWAT input : 219. CHAPTER 19. SWAT input : .HRU 225. TITLE 226. TOPOGRAPHIC CHARACTERISTICS 226. LAND COVER CHARACTERISTICS 227. WATER CYCLING 230. EROSION 231. DEPRESSIONAL STORAGE AREA/POTHOLE 233. REFERENCES 235. CHAPTER 20. SWAT input : .MGT 237. GENERAL MANAGEMENT VARIABLES 238. INITIAL PLANT GROWTH PARAMETERS 238.

6 GENERAL MANAGEMENT PARAMETERS 239. URBAN MANAGEMENT PARAMETERS 245. IRRIGATION MANAGEMENT PARAMETERS 246. TILE DRAIN MANAGEMENT PARAMETERS 248. MANAGEMENT OPERATIONS 250. SCHEDULED MANAGEMENT OPERATIONS 251. PLANTING/BEGINNING OF GROWING SEASON 253. IRRIGATION OPERATION 257. FERTILIZER APPLICATION 259. PESTICIDE APPLICATION 261. HARVEST & KILL OPERATION 263. TILLAGE OPERATION 265. HARVEST OPERATION 266. KILL OPERATION 269. GRAZING OPERATION 270. AUTO IRRIGATION INITIALIZATION 272. AUTO FERTILIZER INITIALIZATION 275. STREET SWEEPING OPERATION 278.

7 RELEASE/IMPOUND OPERATION 281. CONTINUOUS FERTILIZER OPERATION 283. CONTINUOUS PESTICIDE OPERATION 285. BURN OPERATION 287. END OF YEAR OPERATION 288. REFERENCES 289. CHAPTER 21. SWAT input : .WUS 291. CHAPTER 22. SWAT input : .SOL 295. CHAPTER 23. SWAT input : .CHM 311. CHAPTER 24. SWAT input : .GW 317. CHAPTER 25. SWAT input : .RTE 325. CHAPTER 26. SWAT input : .WWQ 339. CHAPTER 27. SWAT input : .SWQ 349. CHAPTER 28. SWAT input : .PND 363. CHAPTER 29. SWAT input : .RES 379. RESERVOIR FILE 380. DAILY RESERVOIR OUTFLOW FILE 390. MONTHLY RESERVOIR OUTFLOW FILE 391.

8 CHAPTER 30. SWAT input : .LWQ 393. CHAPTER 31. SWAT input : MEASURED 405. HOURLY RECORDS (RECHOUR) DATA FILE 406. DAILY RECORDS (RECDAY) DATA FILE 409. MONTHLY RECORDS (RECMON) DATA FILE 412. ANNUAL RECORDS (RECYEAR) DATA FILE 416. AVERAGE ANNUAL RECORDS (RECCNST) DATA FILE 420. CHAPTER 32. SWAT output FILES 423. input SUMMARY FILE ( ) 424. STANDARD output FILE ( ) 424. HRU output FILE ( ) 425. SUBBASIN output FILE ( ) 436. MAIN CHANNEL output FILE ( ) 439. HRU IMPOUNDMENT output FILE ( ) 444. RESERVOIR output FILE ( ) 449. SEDIMENT LOADS output FILE 454.

9 CHAPTER 33. SWAT input : .OPS 457. SCHEDULED MANAGEMENT OPERATIONS 458. TERRACING 459. TILE DRAINAGE 461. CONTOURING 462. FILTER STRIPS 462. STRIP CROPPING 464. FIRE OPERATION 465. GRASSED WATERWAYS 466. PLANT PARAMETER UPDATE 468. REFERENCES 469. CHAPTER 34. SWAT input : SEPTWQDB 471. SEPTIC DATABASE FILE ( ) 472. CHAPTER 35. SWAT input : .SEP 481. SEPTIC input FILE 482. CHAPTER 36. SWAT input : 487. ATMOSPHERIC DEPOSITION FILE 488. CHAPTER 37. SWAT input : 497. LANDUSE UPDATE FILE ( ) 498. DESCRIPTION OF FNAM input FILE 499. APPENDIX A. MODEL DATABASES 501.

10 LAND COVER/PLANT GROWTH DATABASE 502. LAND COVER/PLANT TYPES IN DATABASE 505. TEMPERATURE RESPONSES 505. LEAF AREA DEVELOPMENT 509. ENERGY-BIOMASS CONVERSION 513. LIGHT INTERCEPTION 519. STOMATAL CONDUCTANCE 520. CANOPY HEIGHT/ROOT DEPTH 522. PLANT NUTRIENT CONTENT 526. HARVEST 529. USLE C FACTOR 533. RESIDUE DECOMPOSITION 533. MINIMAL LAI/BIOMASS DURING DORMANCY 534. TILLAGE DATABASE 535. PESTICIDE DATABASE 538. WATER SOLUBILITY 544. SOIL ADSORPTION COEFFICIENT 544. SOIL HALF LIFE 544. FOLIAR HALF LIFE 545. WASH-OFF FRACTION 545. APPLICATION EFFICIENCY 545.