online_wsprofiles_26:   S3 water-surface profile Description Example Summary Reference Disclaimer INPUT DATA: Select:    SI units (metric) U.S. Customary units    [Choose S.I. Units or U.S. Customary units Enter discharge Q (m3/s) [cfs] :              Enter bottom width B (m) [ft] :              Enter side slope z (z H:1 V):     Enter Manning's n:              Enter bottom slope So (m/m) [ft/ft] :     Enter number of computational intervals n (suggested range 50-200) [If left blank, a default value of 100 will be used]:     Enter number of tabular output intervals m (suggested range 10-50) [If left blank, a default value of 10 will be used]:     Enter flow depth at the upstream boundary yd (m) [ft] [If entered, program will compare with normal depth; if left blank, program will use normal depth]:     To calculate normal depth at the upstream boundary, the program requires the following hydraulic and geometric data for the upstream channel: [Make sure bottom slope So,u/s >>  So. Leave any other box blank if the value is the same as the corresponding value entered above]. Enter u/s discharge Qu/s (m3/s) [cfs] :              Enter u/s bottom width Bu/s (m) [ft] :              Enter u/s size slope zu/s (z H:1 V):     Enter Manning's nu/s:              Enter u/s bottom slope So,u/s (m/m) [ft/ft] [do not leave blank]:     ECHO OF INPUT: Warning: Undefined variable $discharge in /var/www/html/ponce/onlinewsprofiles26.php on line 771 Warning: Undefined variable $dischargeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 771 Discharge Q =                 Warning: Undefined variable $bottomwidth in /var/www/html/ponce/onlinewsprofiles26.php on line 772 Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 772 Bottom width B =                 Warning: Undefined variable $sideslope in /var/www/html/ponce/onlinewsprofiles26.php on line 773 Warning: Undefined variable $slopeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 773 Side slope z =   Warning: Undefined variable $manningsn in /var/www/html/ponce/onlinewsprofiles26.php on line 775 Manning's n =                 Warning: Undefined variable $bottomslope in /var/www/html/ponce/onlinewsprofiles26.php on line 776 Warning: Undefined variable $slopeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 776 Bottom slope So =   Warning: Undefined variable $nintervals in /var/www/html/ponce/onlinewsprofiles26.php on line 777 Number of computational intervals n =                 Warning: Undefined variable $mintervals in /var/www/html/ponce/onlinewsprofiles26.php on line 778 Number of tabular output intervals m =    Warning: Undefined variable $inputdepth in /var/www/html/ponce/onlinewsprofiles26.php on line 780 Warning: Undefined variable $normaldepthus in /var/www/html/ponce/onlinewsprofiles26.php on line 782 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinewsprofiles26.php on line 782 Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 782 Flow depth at the upstream boundary   yn =  0   [ yn was calculated by default ] Warning: Undefined variable $dischargeus in /var/www/html/ponce/onlinewsprofiles26.php on line 790 Warning: Undefined variable $dischargeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 790 Discharge Qu/s =                 Warning: Undefined variable $bottomwidthus in /var/www/html/ponce/onlinewsprofiles26.php on line 791 Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 791 Bottom width Bu/s =                 Warning: Undefined variable $sideslopeus in /var/www/html/ponce/onlinewsprofiles26.php on line 792 Warning: Undefined variable $slopeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 792 Side slope zu/s =   Warning: Undefined variable $manningsnus in /var/www/html/ponce/onlinewsprofiles26.php on line 793 Manning's nu/s =                 Warning: Undefined variable $bottomslopeus in /var/www/html/ponce/onlinewsprofiles26.php on line 794 Warning: Undefined variable $slopeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 794 Bottom slope So,u/s =   OUTPUT: Computational depth interval Δy =   Warning: Undefined variable $dy in /var/www/html/ponce/onlinewsprofiles26.php on line 801 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinewsprofiles26.php on line 801 Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 801 0                     Tabular output depth interval (Δy)t =   Warning: Undefined variable $intervalp in /var/www/html/ponce/onlinewsprofiles26.php on line 803 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinewsprofiles26.php on line 803 Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 803 0 Normal depth [downstream] yn =   Warning: Undefined variable $normaldepth in /var/www/html/ponce/onlinewsprofiles26.php on line 804 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinewsprofiles26.php on line 804 Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 804 0                     Normal-depth Froude number [downstream] Fn =   Warning: Undefined variable $fn in /var/www/html/ponce/onlinewsprofiles26.php on line 806 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinewsprofiles26.php on line 806 0 Warning: Undefined variable $fnus in /var/www/html/ponce/onlinewsprofiles26.php on line 808 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinewsprofiles26.php on line 808 Froude number of upstream flow Fn,u/s =  0  Warning: Undefined variable $criticaldepth in /var/www/html/ponce/onlinewsprofiles26.php on line 809 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinewsprofiles26.php on line 809 Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 809 Critical depth in the downstream channel yc =  0                      Warning: Undefined variable $criticalslope in /var/www/html/ponce/onlinewsprofiles26.php on line 810 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinewsprofiles26.php on line 810 Warning: Undefined variable $slopeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 810 Critical slope in the downstream channel Sc =  0  k Depth Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 818 () Area Warning: Undefined variable $areaunits in /var/www/html/ponce/onlinewsprofiles26.php on line 819 () Velocity Warning: Undefined variable $velocityunits in /var/www/html/ponce/onlinewsprofiles26.php on line 820 () Velocity head Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 821 () Specific head Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 822 () Wetted perimeter Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 823 () Hydraulic radius Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 824 () Friction slope Warning: Undefined variable $slopeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 825 () Average slope Warning: Undefined variable $slopeunits in /var/www/html/ponce/onlinewsprofiles26.php on line 826 () Specific head difference Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 827 () Length increment Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 828 () Depth gradient Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 830 () Total length Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinewsprofiles26.php on line 831 () 0 0 0 0 0 0 0 0 0 0 0 0 0 0   Your request was processed at  04:38:10 am on April 3rd, 2025   [ 250403  04:38:10 ]. 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online calc
normal depth	critical depth	normal and critical depth		discharge in channel	critical slope
normal depth in culvert	critical depth in culvert	discharge in culvert		discharge sluice	discharge weir
M1 wsprofile	M2 wsprofile	M3 wsprofile	S1 wsprofile	S2 wsprofile	S3 wsprofile
C1 wsprofile	H2 wsprofile	A2 wsprofile	C3 wsprofile	H3 wsprofile	A3 wsprofile
sequent depth HJ	energy loss HJ	initial sequent HJ	efficiency HJ	critical width constriction
ogee spillway	Hazen-Williams	parallel pipes	three reservoirs	tractive force
V-notch weir	V-notch partially contracted	Cipolletti weir	Rectangular weir	Standard contracted rectangular weir	Standard suppressed rectangular weir
Froude number		Vedernikov number		Limiting contracting ratio
Creager	rational	slope-area	linear reservoir	storage indication 1	storage indication 2
Muskingum	Muskingum-Cunge	time-area	Clark UH	Cascade of linear reservoirs
USGS Methods for magnitude of floods in California	Kinematic wave applicability	Diffusion wave applicability	Clark's unit hydrography compared to Ponce's version	Correlation coefficient of a joint probability distribution	Storage volume of a detention basin
Blaney-Criddle	Penman	Penman-Monteith reference crop	Thornthwaite	Priestley-Taylor	Penman-Monteith ecosystems
Gumbel	Gumbel 2	Log Pearson	Log Pearson 2	TR-55 graphical	curve number
Overland flow using the diffusion wave method	Dynamic hydraulic diffusivity	convolution	S-hydrograph	time of concentration	water balance
UH cascade	dimensionless UH cascade		general UH cascade	series UH cascade	all series UH cascade
one-predictor linear	one-predictor nonlinear	two-predictor linear	two-predictor nonlinear	hyperbolic regression
fall velocity	Lane & Koelzer	USLE	USLE2	Dendy-Bolton	Shields
Duboys	Meyer-Peter	Colby 1957	Colby	reservoir design life	Equilibrium channel top width using the Lane et al. theory
Modified Einstein Procedure		bridge scour using Melville equation
DO sag	DO sag analysis		Oxygenation	Salinity (EC to TDS)