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: p823.man MAN. PRACTICE: description 1 description 2 description 3 SLOPE: p823.slp CLIMATE: p823.cli Station: MINDEN NV CLIGEN VER. 5.32 5.32 SOIL: p823.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 2229 storms produced 35369.10 mm of precipitation 5 rain storm runoff events produced 71.35 mm of runoff 721 snow melts and/or events during winter produced 17499.60 mm of runoff annual averages --------------- Number of years 30 Mean annual precipitation 1178.97 mm Mean annual runoff from rainfall 2.38 mm Mean annual runoff from snow melt and/or rain storm during winter 583.32 mm II. ON SITE EFFECTS ON SITE EFFECTS ON SITE EFFECTS --------------- --------------- --------------- A. AREA OF NET SOIL LOSS ** Soil Loss (Avg. of Net Detachment Areas) = 0.189 kg/m2 ** ** Maximum Soil Loss = 0.473 kg/m2 at 230.16 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) ------------------------------------------------------------------------ 19.73- 657.61 0.189 0.148 0.473 230.16 0.000 26.30 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) ------------------------------------------------------------------------ 6.58 0.000 1 230.16 0.473 1 453.75 0.242 1 13.15 0.000 1 236.74 0.472 1 460.33 0.236 1 19.73 0.000 1 243.32 0.468 1 466.90 0.230 1 26.30 0.000 1 249.89 0.461 1 473.48 0.223 1 32.88 0.001 1 256.47 0.452 1 480.05 0.215 1 39.46 0.002 1 263.04 0.447 1 486.63 0.208 1 46.03 0.004 1 269.62 0.445 1 493.21 0.201 1 52.61 0.006 1 276.20 0.441 1 499.78 0.193 1 59.18 0.008 1 282.77 0.434 1 506.36 0.185 1 65.76 0.010 1 289.35 0.426 1 512.94 0.176 1 72.34 0.012 1 295.92 0.415 1 519.51 0.159 1 78.91 0.014 1 302.50 0.402 1 526.09 0.138 1 85.49 0.015 1 309.08 0.386 1 532.66 0.119 1 92.07 0.016 1 315.65 0.370 1 539.24 0.102 1 98.64 0.017 1 322.23 0.351 1 545.82 0.086 1 105.22 0.018 1 328.80 0.331 1 552.39 0.076 1 111.79 0.019 1 335.38 0.311 1 558.97 0.080 1 118.37 0.022 1 341.96 0.292 1 565.54 0.084 1 124.95 0.026 1 348.53 0.273 1 572.12 0.089 1 131.52 0.031 1 355.11 0.252 1 578.70 0.095 1 138.10 0.038 1 361.69 0.231 1 585.27 0.100 1 144.67 0.046 1 368.26 0.211 1 591.85 0.098 1 151.25 0.058 1 374.84 0.200 1 598.42 0.090 1 157.83 0.080 1 381.41 0.190 1 605.00 0.083 1 164.40 0.112 1 387.99 0.179 1 611.58 0.076 1 170.98 0.154 1 394.57 0.168 1 618.15 0.070 1 177.55 0.210 1 401.14 0.157 1 624.73 0.065 1 184.13 0.274 1 407.72 0.156 1 631.30 0.066 1 190.71 0.320 1 414.29 0.172 1 637.88 0.068 1 197.28 0.351 1 420.87 0.190 1 644.46 0.070 1 203.86 0.383 1 427.45 0.208 1 651.03 0.072 1 210.43 0.414 1 434.02 0.227 1 657.61 0.074 1 217.01 0.445 1 440.60 0.246 1 223.59 0.469 1 447.17 0.247 1 note: (+) soil loss - detachment (-) soil loss - deposition III. OFF SITE EFFECTS OFF SITE EFFECTS OFF SITE EFFECTS ---------------- ---------------- ---------------- A. AVERAGE ANNUAL SEDIMENT LEAVING PROFILE 120.518 kg/m of width 10226.249 kg (based on profile width of 84.853 m) 1.833 t/ha (assuming contributions from 5.580 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