Table 1. - 



Analysis of hydrographs of streams in different regions of the United States' 



Vero Beach, Blacksburg, N. Danville, Hastings, Colby, Waco, Reynolds, 



Florida Virginia Vermont Nebraska Wisconsin Texas Idaho 



Area (km.^ ) 



255.5 



6.0 



111.1 8.3 1.4 



2.3 



233.4 









PERCENT OF TOTAL FLOW 







Base flow 



32.47 



14.80 



53.16 9.07 22.74 



5.52 



13.36 



Stormflow 



67.53 



85.20 



46.84 90.93 77.26 



94.48 



86.64 









PERCENT OF STORMFLOW 







Interflow 



65.38 



89.99 



90.62 66.58 90.41 



89.63 



93.49 



Surface flow 



34.62 



10.01 



9.38 33.42 9.59 



10.37 



6.51 



Before peak 



44.19 



32.47 



37.81 39.92 14.59 



26.71 



14.68 



After peak 



55.81 



67.53 



62.19 60.08 85.41 



72.39 



85.32 









DURATION (HOURS) OF STORMFLOW 







Time to peak 



48.00 



1.00 



10.08 3.17 4.12 



1.23 



18.00 



Recession time 



56.64 



3.36 



24.88 5.91 8.87 



3.89 



38.60 



Total time 



104.64 



4.36 



34.96 9.08 12.99 



5.12 



56.60 



^Source of data: ibid, text footnote 3. 



1.0 - 



11.00 12.00 13.00 14.00 



HOURS 



Figure 2. — Flow components in a simple hy drograph recorded at Riesel, Texas. 



4 



