File: /geodata/weppcloud_runs/lt_202012_54_Sierra_Creek_ModSev/wepp/output/H21.loss.dat
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: p21.man
MAN. PRACTICE: description 1
description 2
description 3
SLOPE: p21.slp
CLIMATE: p21.cli
Station: TAHOE CA CLIGEN VER. 5.32 5.32
SOIL: p21.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 Meeks gravelly loamySPM
ANNUAL AVERAGE SUMMARIES
------------------------
I. RAINFALL AND RUNOFF SUMMARY
-------- --- ------ -------
total summary: years 1 - 30
2264 storms produced 35700.60 mm of precipitation
2 rain storm runoff events produced 23.03 mm of runoff
28 snow melts and/or
events during winter produced 355.41 mm of runoff
annual averages
---------------
Number of years 30
Mean annual precipitation 1190.02 mm
Mean annual runoff from rainfall 0.77 mm
Mean annual runoff from snow melt
and/or rain storm during winter 11.85 mm
II. ON SITE EFFECTS ON SITE EFFECTS ON SITE EFFECTS
--------------- --------------- ---------------
A. AREA OF NET SOIL LOSS
** Soil Loss (Avg. of Net Detachment Areas) = 0.190 kg/m2 **
** Maximum Soil Loss = 0.336 kg/m2 at 325.38 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)
------------------------------------------------------------------------
121.07- 378.35 0.190 0.092 0.336 325.38 0.000 124.86
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)
------------------------------------------------------------------------
3.78 0.000 1 132.42 0.003 1 261.06 0.246 1
7.57 0.000 1 136.21 0.006 1 264.84 0.238 1
11.35 0.000 1 139.99 0.010 1 268.63 0.229 1
15.13 0.000 1 143.77 0.016 1 272.41 0.219 1
18.92 0.000 1 147.56 0.023 1 276.19 0.207 1
22.70 0.000 1 151.34 0.032 1 279.98 0.195 1
26.48 0.000 1 155.12 0.044 1 283.76 0.182 1
30.27 0.000 1 158.91 0.056 1 287.55 0.169 1
34.05 0.000 1 162.69 0.072 1 291.33 0.156 1
37.83 0.000 1 166.47 0.088 1 295.11 0.143 1
41.62 0.000 1 170.26 0.099 1 298.90 0.133 1
45.40 0.000 1 174.04 0.111 1 302.68 0.156 1
49.19 0.000 1 177.82 0.125 1 306.46 0.186 1
52.97 0.000 1 181.61 0.140 1 310.25 0.217 1
56.75 0.000 1 185.39 0.156 1 314.03 0.247 1
60.54 0.000 1 189.17 0.171 1 317.81 0.278 1
64.32 0.000 1 192.96 0.181 1 321.60 0.308 1
68.10 0.000 1 196.74 0.184 1 325.38 0.336 1
71.89 0.000 1 200.52 0.186 1 329.16 0.336 1
75.67 0.000 1 204.31 0.188 1 332.95 0.325 1
79.45 0.000 1 208.09 0.190 1 336.73 0.314 1
83.24 0.000 1 211.88 0.192 1 340.51 0.304 1
87.02 0.000 1 215.66 0.193 1 344.30 0.292 1
90.80 0.000 1 219.44 0.198 1 348.08 0.281 1
94.59 0.000 1 223.23 0.211 1 351.86 0.270 1
98.37 0.000 1 227.01 0.223 1 355.65 0.264 1
102.15 0.000 1 230.79 0.235 1 359.43 0.261 1
105.94 0.000 1 234.58 0.247 1 363.21 0.259 1
109.72 0.000 1 238.36 0.259 1 367.00 0.256 1
113.50 0.000 1 242.14 0.271 1 370.78 0.253 1
117.29 0.000 1 245.93 0.278 1 374.57 0.250 1
121.07 0.000 1 249.71 0.271 1 378.35 0.247 1
124.86 0.000 1 253.49 0.263 1
128.64 0.001 1 257.28 0.255 1
note: (+) soil loss - detachment (-) soil loss - deposition
III. OFF SITE EFFECTS OFF SITE EFFECTS OFF SITE EFFECTS
---------------- ---------------- ----------------
A. AVERAGE ANNUAL SEDIMENT LEAVING PROFILE
48.940 kg/m of width
7916.299 kg (based on profile width of 161.755 m)
1.294 t/ha (assuming contributions from 6.120 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 0.0 100.0 113.6 0.014 0.014
2 0.010 2.65 0.0 100.0 0.0 0.0 0.049 0.049
3 0.030 1.80 0.0 72.9 27.1 30.8 0.099 0.099
4 0.300 1.60 82.8 11.3 5.9 6.7 0.237 0.237
5 0.200 2.65 100.0 0.0 0.0 0.0 0.601 0.601
-------------------------------------------------------------------------------
Average annual SSA enrichment ratio leaving profile = 1.00
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