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<br />ITRACE on the J2 and X2 cards is used to specify the desired <br />level of trace. The minor trace may be called separately, ITRACE = 1, <br />or in combination with the major trace, ITRACE = 10. If all cross <br />sections are to be traced, the J2 card is used. If only individual <br />cross sections are to be traced, the X2 cards are used. <br /> <br />11. PROFILE PLOTS <br /> <br />Profile plots are printed following the cross section data for <br />jobs having five or more cross sections. These plots show the location <br />of cross sections and elevations of critical depth, water surface, <br />energy grade line, channel invert, left and right bank elevations, and <br />the lowest of the end stations of the cross section. The vertical and <br />horizontal scales of a profile may be specified by J2 card variables <br />PRFVS and XSECH, respectively. If these variables are omitted the <br />program will automatically determine the appropriate scale values. <br /> <br />12. CROSS SECTION PLOTS <br /> <br />Printer plots of any or all of the stream cross sections to any <br />scale may be requested by using the J2 and Xl cards. If all cross <br />sections are to be plotted, set variable IPLOT on the J2.2 card equal to <br />one or ten. If only certain cross sections are desired, IPLOT on the <br />J2.2 card should be left blank and variable IPLOT on the Xl.10 card <br />should be set equal to one or ten for the cross section to be plotted. <br />Vertical and horizontal scales of the plot may be specified constant for <br />all cross sections in the job using variables XSECV(J2.4) and XSECH(J2.5). <br />If the scale is not specified, the largest scale which is a multiple <br />of one, two or five that produces three pages of output or less will <br />be used. For some deep river cross sections, flow may occupy only <br />a small portion of the total cross section. In this case it may be <br />desirable to enlarge the scale and to print only the cross section points <br />up to the water surface elevation. This may be done by using a value <br />of ten for IPLOT instead of one. <br /> <br />13. SUMMARY DATA <br /> <br />Tables may be requested to summarize data in a tabular form for <br />either single or multiple profile runs. The J3 card may be used to <br />specify user- and pre-defined tables. User-defined tables of one to <br />thirteen variables may be specified from a list of sixty-three variables. <br />User-defined tables may be specified to permit summary output that will <br />conveniently print on seventy-two or eighty column terminals. Seven <br />pre-defined tables are available to summarize data for bridges, encroach- <br />ments, channel improvements, and flood hazard zones. <br /> <br />14. TAPES <br /> <br />A magnetic tape can be created by the program to document data <br />input and computed results in a compact computer readable form. The <br />Archival Option, (see AC card) creates a tape that records data input <br />and stores sixty-three variables per cross section for each profile. <br />The Archival Option also stores the program identification block and <br /> <br />33 <br />