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Calculation of total sediment discharge by the Modified Einstein Procedure (USBR method), Victor Miguel Ponce, San Diego State University





    online_modified_einstein:   Total sediment discharge by the Modified Einstein Procedure    (Version 2.0 Beta 160218)


photo of MEP

References



INPUT DATA:

[Sample input]     [Rationale]     [Procedure]     [Features]

Stream or river (optional):  

Select:   

 

U.S. Customary or SI units [Default: U.S. Customary Units].
(Note: SI units temporarily disabled 200818)


1. Discharge Q [cfs] (m3/s):     

2. Mean velocity u [fps] (m/s):     

3. Average depth d [ft] (m):     

4. Width w [ft] (m):     

 5. Flow area A = 0  

 6. Water temperature t [oF] (oC):     

  7. Kinematic viscosity ν = 0.00000000  

  8. Diameter D65 [ft] (mm):     

  9. Diameter D35 [ft] (mm):     

10. Measured concentration C [ppm] (ppm):     

 11. Sampled suspended load Qsm = 0  

12. Vertical distance not sampled dn [ft] (m):     

13. Mean water depth at sampled verticals ds [ft] (m):     


14. Number of size fractions:
   

  Normal has 9 size fractions (1 fine and 8 coarse); Long has 10 size fractions (2 fine and 8 coarse) [Default: Normal].

15. Enter fraction of bed material in each size range (make sure it is 9 values for Normal; 10 values for Long) (separate each value with a comma; maximum character length is 100 characters). ib:     

16. Enter percentage of suspended material in each size range (make sure it is 9 values for Normal; 10 values for Long) (separate each value with a comma; maximum character length is 100 characters). Q's:     

17. Z' mode of computation:    

  See No. 6 in Features [Default: USBR (1955)].



OUTPUT:

NORMAL
0123456789101112131415161718192021222324
iSize
fraction
(mm)
D
(mm)
D
(ft)
ψφ*/21200 D3/2ibibqb43.2 wiBQB

(T/D)

% Size
Q's
Q's

(T/D)

Mult.Z'A"J'1-J'2J"1-J"2PJ"1+J"2
________

PJ'1+J'2

I"1-I"2PI"1+I"2+1Computed
load

(T/D)

10.002-0.06250.01120.000037                     
20.0625-0.1250.08840.00029                     
30.125-0.250.1770.00058                     
40.25-0.50.3540.00116                     
50.5-10.7070.00232                     
61-21.410.00464                     
72-42.830.00928                     
84-85.660.01856                     
98-1611.310.03712                     
-Total                       

LONG
0123456789101112131415161718192021222324
iSize
fraction
(mm)
D
(mm)
D
(ft)
ψφ*/21200 D3/2ibibqb43.2 wiBQB

(T/D)

% Size
Q's
Q's

(T/D)

Mult.Z'A"J'1-J'2J"1-J"2PJ"1+J"2
________

PJ'1+J'2

I"1-I"2PI"1+I"2+1Computed
load

(T/D)

10.002-0.01560.00560.000018                     
20.0156-0.06250.03120.00010                     
30.0625-0.1250.08840.00029                     
40.125-0.250.1770.00058                     
50.25-0.50.3540.00116                     
60.5-10.7070.00232                     
71-21.410.00464                     
82-42.830.00928                     
94-85.660.01856                     
108-1611.310.03712                     
-Total                       


            

  Your request was processed at  02:52:28 am on September 18th, 2020   [ 200918  02:52:28 ].


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