online_do_sag_analysis:   Dissolved oxygen sag analysis Rationale                                          Description Differential equation for DO sag                       Ss = f(T) Deoxygenation constant kd                 Oxygenation constant ko INPUT DATA: [Click on Calculate below, to run in default mode without inputting any data]. Select:      SI units (metric) U.S. Customary     [Choose SI or U.S. Customary units]. [Default: SI units; program resets to default units]. Deoxygenation constant kd (day-1):      Leave blank to set default kd = 0.2 Oxygenation constant ko (day-1):      Leave blank to set default ko = 0.6 [Saturation dissolved oxygen is at zero salinity and mean sea level]. Water temperature T (oC) [oF]:      Leave blank to set default T = 20oC (T = 68oF) Ratio of dissolved oxygen upstream to dissolved oxygen at saturation Os/Ss:      Leave blank to set default Os/Ss = 0.9 Stream velocity v (m/s) [ft/s]:      Leave blank to set default v = 1 m/s (v = 3.28 ft/s) OUTPUT:   Your request was processed at  09:28:29 pm on July 4th, 2009   [ 090704  21:28:29 ]. Thank you for running online_do_sag_analysis.  [081202]