online_water_balance_2:   Water balance to determine groundwater recharge coefficient 

Reference

Ponce, V. M. 2018. How much water could be pumped from an aquifer and still remain sustainable?
[In http://ponce.sdsu.edu].

[Sample input]         [Sample output]

INPUT DATA:

Units:   

(SI units) [U.S. Customary units]

Number of years of record n:     

n values of annual precipitation Pi (mm) [in] (separate each value with a comma; maximum string length is 300 characters).

n values of annual runoff Ri (mm) [in] (separate each value with a comma; maximum string length is 300 characters).

n values of annual surface runoff Si (mm) [in] (separate each value with a comma; maximum string length is 300 characters).

ECHO OF INPUT:


Warning: Undefined variable $unitsystems in /var/www/html/ponce/onlinewaterbalance2.php on line 382

Warning: Undefined variable $nameunits in /var/www/html/ponce/onlinewaterbalance2.php on line 384


Warning: Undefined variable $inyears in /var/www/html/ponce/onlinewaterbalance2.php on line 390

Number of years of record n =  


Warning: Undefined variable $unitsystems in /var/www/html/ponce/onlinewaterbalance2.php on line 391

Warning: Undefined variable $rainfallunits in /var/www/html/ponce/onlinewaterbalance2.php on line 393
Precipitation P array ():


Warning: Undefined variable $inyears in /var/www/html/ponce/onlinewaterbalance2.php on line 401

Warning: Undefined variable $inprecip in /var/www/html/ponce/onlinewaterbalance2.php on line 407

Warning: Trying to access array offset on null in /var/www/html/ponce/onlinewaterbalance2.php on line 407
P1 =   .   


Warning: Undefined variable $unitsystems in /var/www/html/ponce/onlinewaterbalance2.php on line 410

Warning: Undefined variable $rainfallunits in /var/www/html/ponce/onlinewaterbalance2.php on line 412
Runoff R array ():


Warning: Undefined variable $inyears in /var/www/html/ponce/onlinewaterbalance2.php on line 420

Warning: Undefined variable $inrunoff in /var/www/html/ponce/onlinewaterbalance2.php on line 426

Warning: Trying to access array offset on null in /var/www/html/ponce/onlinewaterbalance2.php on line 426
R1 =   .   


Warning: Undefined variable $unitsystems in /var/www/html/ponce/onlinewaterbalance2.php on line 428

Warning: Undefined variable $rainfallunits in /var/www/html/ponce/onlinewaterbalance2.php on line 430
Surface runoff S array ():


Warning: Undefined variable $inyears in /var/www/html/ponce/onlinewaterbalance2.php on line 438

Warning: Undefined variable $insurface in /var/www/html/ponce/onlinewaterbalance2.php on line 444

Warning: Trying to access array offset on null in /var/www/html/ponce/onlinewaterbalance2.php on line 444
S1 =   .   

OUTPUT:

YearPRSUWVKuKrKwKg
1234567891011

            

  Your request was processed at  03:24:05 am on April 7th, 2025   [ 250407  03:24:05 ].

Thank you for running online_water_balance_2.   Please call again.   [240907]

Count 

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)