Annual; abbreviated (Metric Units) USDA WATER EROSION PREDICTION PROJECT ------------------------------------- HILLSLOPE PROFILE AND WATERSHED MODEL VERSION 2020.500 May 1, 2020 TO REPORT PROBLEMS OR TO BE PUT ON THE MAILING LIST FOR FUTURE WEPP MODEL RELEASES, PLEASE CONTACT: WEPP TECHNICAL SUPPORT USDA-AGRICULTURAL RESEARCH SERVICE NATIONAL SOIL EROSION RESEARCH LABORATORY 275 SOUTH RUSSELL STREET WEST LAFAYETTE, IN 47907-2077 USA PHONE: (765) 494-8673 FAX: (765) 494-5948 email: wepp@ecn.purdue.edu URL: http://topsoil.nserl.purdue.edu HILLSLOPE INPUT DATA FILES - VERSION 2020.500 May 1, 2020 MANAGEMENT: p1717.man MAN. PRACTICE: description 1 description 2 description 3 SLOPE: p1717.slp CLIMATE: p1717.cli Station: MINDEN NV CLIGEN VER. 5.32 5.32 SOIL: p1717.sol *** CAUTION *** SOIL FILE FORMAT IS NON-STANDARD WEPP User is solely responsible for entering CORRECT values for BD, SSC, THETFC, THETDR *** CAUTION *** PLANE 1 Lithnip-Meiss-HawkinGRX-SL ANNUAL AVERAGE SUMMARIES ------------------------ I. RAINFALL AND RUNOFF SUMMARY -------- --- ------ ------- total summary: years 1 - 30 2192 storms produced 38794.60 mm of precipitation 11 rain storm runoff events produced 316.23 mm of runoff 709 snow melts and/or events during winter produced 15837.82 mm of runoff annual averages --------------- Number of years 30 Mean annual precipitation 1293.15 mm Mean annual runoff from rainfall 10.54 mm Mean annual runoff from snow melt and/or rain storm during winter 527.93 mm II. ON SITE EFFECTS ON SITE EFFECTS ON SITE EFFECTS --------------- --------------- --------------- A. AREA OF NET SOIL LOSS ** Soil Loss (Avg. of Net Detachment Areas) = 1.606 kg/m2 ** ** Maximum Soil Loss = 7.105 kg/m2 at 473.13 meters ** Area of Soil Loss Soil Loss MAX MAX Loss MIN MIN Loss Net Loss MEAN STDEV Loss Point Loss Point (m) (kg/m2) (kg/m2) (kg/m2) (m) (kg/m2) (m) ------------------------------------------------------------------------ 28.39- 473.13 1.606 2.456 7.105 473.13 0.000 33.12 C. SOIL LOSS/DEPOSITION ALONG SLOPE PROFILE Profile distances are from top to bottom of hillslope distance soil flow distance soil flow distance soil flow (m) loss elem (m) loss elem (m) loss elem (kg/m2) (kg/m2) (kg/m2) ------------------------------------------------------------------------ 4.73 0.000 1 165.59 0.022 1 326.46 0.552 1 9.46 0.000 1 170.33 0.024 1 331.19 0.588 1 14.19 0.000 1 175.06 0.025 1 335.92 0.625 1 18.93 0.000 1 179.79 0.026 1 340.65 0.662 1 23.66 0.000 1 184.52 0.027 1 345.38 0.864 1 28.39 0.000 1 189.25 0.028 1 350.11 1.495 1 33.12 0.000 1 193.98 0.029 1 354.85 2.220 1 37.85 0.000 1 198.71 0.031 1 359.58 2.996 1 42.58 0.001 1 203.45 0.032 1 364.31 3.795 1 47.31 0.001 1 208.18 0.033 1 369.04 4.585 1 52.04 0.002 1 212.91 0.035 1 373.77 4.949 1 56.78 0.003 1 217.64 0.038 1 378.50 5.115 1 61.51 0.004 1 222.37 0.042 1 383.23 5.283 1 66.24 0.004 1 227.10 0.047 1 387.97 5.452 1 70.97 0.005 1 231.83 0.053 1 392.70 5.622 1 75.70 0.006 1 236.56 0.059 1 397.43 5.735 1 80.43 0.006 1 241.30 0.067 1 402.16 5.663 1 85.16 0.007 1 246.03 0.078 1 406.89 5.574 1 89.89 0.007 1 250.76 0.090 1 411.62 5.480 1 94.63 0.008 1 255.49 0.105 1 416.35 5.382 1 99.36 0.008 1 260.22 0.123 1 421.08 5.281 1 104.09 0.009 1 264.95 0.142 1 425.82 5.338 1 108.82 0.009 1 269.68 0.155 1 430.55 5.501 1 113.55 0.010 1 274.41 0.166 1 435.28 5.664 1 118.28 0.011 1 279.15 0.178 1 440.01 5.829 1 123.01 0.012 1 283.88 0.192 1 444.74 5.995 1 127.74 0.012 1 288.61 0.206 1 449.47 6.164 1 132.48 0.013 1 293.34 0.229 1 454.20 6.349 1 137.21 0.014 1 298.07 0.267 1 458.93 6.537 1 141.94 0.016 1 302.80 0.311 1 463.67 6.726 1 146.67 0.017 1 307.53 0.360 1 468.40 6.915 1 151.40 0.018 1 312.26 0.417 1 473.13 7.105 1 156.13 0.020 1 317.00 0.478 1 160.86 0.021 1 321.73 0.518 1 note: (+) soil loss - detachment (-) soil loss - deposition III. OFF SITE EFFECTS OFF SITE EFFECTS OFF SITE EFFECTS ---------------- ---------------- ---------------- A. AVERAGE ANNUAL SEDIMENT LEAVING PROFILE 714.048 kg/m of width 86930.219 kg (based on profile width of 121.743 m) 15.092 t/ha (assuming contributions from 5.760 ha) B. SEDIMENT CHARACTERISTICS AND ENRICHMENT Sediment particle information leaving profile ------------------------------------------------------------------------------- Particle Composition Detached Fraction Class Diameter Specific --------------------------------- Sediment In Flow (mm) Gravity % Sand % Silt % Clay % O.M. Fraction Exiting ------------------------------------------------------------------------------- 1 0.002 2.60 0.0 0.0 100.0 6.4 0.038 0.038 2 0.010 2.65 0.0 100.0 0.0 0.0 0.025 0.025 3 0.030 1.80 0.0 56.5 43.5 2.8 0.166 0.166 4 0.300 1.60 76.9 15.3 7.8 0.5 0.473 0.473 5 0.200 2.65 100.0 0.0 0.0 0.0 0.298 0.298 ------------------------------------------------------------------------------- Average annual SSA enrichment ratio leaving profile = 1.00