online_einstein_brown:  Calculation of sediment discharge by the Einstein-Brown formula    The Mojave river at Hellendale, California Formulas: • γw = f (T) • ν = f (T) • γs = Ss γw • τ* = (R S) / [ (Ss - 1)ds ] • φ = f (τ*) • A = [ g ds3 (Ss - 1) ]1/2 • B = 36 ν 2 / A2 • F1 = [ (2/3) + B ]1/2 - B1/2 • gs = φ F1 A γs • Gs = gs W Reference:  ASCE Manuals and Reports on Engineering Practice No. 54: Sedimentation Engineering, Vito A. Vanoni, Editor, New York, NY, 1975. SI Units (metric):   Hydraulic radius R in m; channel width W in m; bottom slope S in m/m; mean diameter ds in mm; water temperature T in degrees Celsius; Ss is dimensionless. U.S. Customary Units:   Hydraulic radius R in ft; channel width W in ft; bottom slope S in ft/ft; mean diameter ds in mm; water temperature T in degrees Farenheit; Ss is dimensionless. INPUT DATA: Select:    SI units (metric) U.S. Customary units Hydraulic radius R :         Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 518 Channel width W :         Warning: Undefined variable $widthunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 527 Bottom slope S :           Warning: Undefined variable $slopeunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 536 Mean particle diameter ds :       Warning: Undefined variable $diameterunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 545 Water temperature T :       Warning: Undefined variable $temperatureunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 553 [ Leave blank to choose default value T = 20oC (or the equivalent T = 68oF) ] Specific gravity Ss :        Warning: Undefined variable $specificgravityunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 566 [ Leave blank to choose default value Ss = 2.65 ] OUTPUT: Sediment discharge gs :    Warning: Undefined variable $sedimentdischargeu in /var/www/html/ponce/onlineeinsteinbrown.php on line 581 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/ponce/onlineeinsteinbrown.php on line 581   Warning: Undefined variable $sedimentdischargeuunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 581 Sediment discharge Gs :    Warning: Undefined variable $sedimentdischarge in /var/www/html/ponce/onlineeinsteinbrown.php on line 582 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/ponce/onlineeinsteinbrown.php on line 582   Warning: Undefined variable $sedimentdischargeunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 582 Sediment discharge gs :    Warning: Undefined variable $sedimentdischargeudays in /var/www/html/ponce/onlineeinsteinbrown.php on line 585 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/ponce/onlineeinsteinbrown.php on line 585   Warning: Undefined variable $sedimentdischargeudaysunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 585 Sediment discharge Gs :    Warning: Undefined variable $sedimentdischargedays in /var/www/html/ponce/onlineeinsteinbrown.php on line 586 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/ponce/onlineeinsteinbrown.php on line 586   Warning: Undefined variable $sedimentdischargedaysunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 586 Sediment discharge gs :    Warning: Undefined variable $sedimentdischargeumdays in /var/www/html/ponce/onlineeinsteinbrown.php on line 589 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/ponce/onlineeinsteinbrown.php on line 589   Warning: Undefined variable $sedimentdischargeumdaysunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 589 Sediment discharge Gs :    Warning: Undefined variable $sedimentdischargemdays in /var/www/html/ponce/onlineeinsteinbrown.php on line 590 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/ponce/onlineeinsteinbrown.php on line 590   Warning: Undefined variable $sedimentdischargemdaysunits in /var/www/html/ponce/onlineeinsteinbrown.php on line 590 Press button to     or recalculate   Your request was processed at  10:37:11 pm on April 6th, 2025   [ 250406  22:37:11 ]. Thank you for running   online_einstein_brown   Please call again.   [121214]