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<br />card. the ET card. and the table of discharges (QT card). To compute a <br />natural Miter surface profile as the first profile of a multiple profile <br />run, either INQ (J1.2) must be zero (i.e.. to indicate that cards ET and <br />QT are not read) or the field on the ET card called by 11ft) for the first <br />proffle DUst be blank (no encroac'-ent used). The latter approach is <br />used in this example. The Jl cards for subsequent profiles c:all field 3 <br />(INQ-3) for an encroachment based on an 0.8 foot rise in water surface <br />(8.4* in field 3 of ET card) and field 4 (INQ-4) for an eooroachment <br />based on a one foot rise in water surface (10.4 in field 4 of ET card). <br />The starting water surface elevation to be used for the encroach- <br />..nt profiles would start at the5aMe elevation ,as for.the natural profile. <br />starting eolevation is fixed by a lake or other control. the encroachment <br />profiles would start at the same elevation as for the natural profile. <br />If the reach under study is part of a stream in which future downstream <br />enc:roac:hments could cause a rise in water surface elevation, then the <br /> <br />encroachment runs should be started at the higher elevation. For this <br />example, the starting elevations are assumed to be equal to the starting <br />elevation for the natural profile plus the one foot increase. <br />The example output for the second profile shown on page 7 of <br />Appendix II contains two statements that supplement the normal print- <br />out. These statements are explained in Exhi~it 9A. The first statement, <br />preceded by the number 2800, gives the conveyance data computed by the <br />program and the second statement, numbered 3470, gives the computed <br />encroachment stations, the encroachment method used, and the ratio of <br /> <br />*The encroachment method is given to the right of the decimal (.4 for <br />Metnod 4) and for Method 4. the change in water surface elevation is <br />given in tenths of a foot to the left of the decimal. <br /> <br />10 <br />