OCR Text |
Show 89 line as drawn is an attempt to average out ( those- those those ) , conditions and give a ( so-called socalled ) mean or ( approxi approxi- approxi ) , niate relation . This relation here shown on Plate is the same relation to other measurements that have been used in here and the curve shows the , relation between all of the other measurements used in preparing this table . This curve ( repre repre- repre ) sents the general average of the depths of the river , , as compared to the gage readings . In other words , here are the plotted points upon which that curve . is based . This Plate represents measurements . ( made inade ) in 1921 and ( 1922-nineteen 1922nineteen ) different ( observa observa- observa ) tions , ranging in gage from 7 feet to 20 feet , well distributed . The cross section of the river was taken a ( thou-- thou ) sand or more of times ; every time there is a ( meas- meas ) urement made there is taken a cross section of the , . river . To find depth , strike some sort of an average ( or- or ) ( composite ceimposite ) figure of those various cross sections . . . That is what this Plate is . On the particular day in question on which these measurements were made , the characteristics as shown on Plate were observed . There were enough measurements taken , in his estimation , to show a composite picture . These represent conditions as they were on the day when the measurement was ( inade-the inadethe ) relation between stage and velocity , ( velocity -velocity velocity ) and area , and discharge , based on actual discharge measurements . |