*   Optional E0 line (new 12/9/94) to control detailed printing of

*   variable junction input data.  If this optional line is omitted,

*   detailed printing will not occur, only the summary print line for

*   each variable area junction as in past.

*

*     E0 line  :

*     NVSPR    : = 0, Do not print echo of all E1-E2 input data, only

*                     print summary.

*                = 1, Echo all variable area input data.

*=======================================================================

*     The 'E1' data line describes storage junctions in Extran.

*          Note: Each storage junction must also have been

*                 entered in the junction data (Group D1).

*          There are three types of storage junctions:

*                (1) Constant storage area.  Enter ASTORE as positive value

*                    and enter NUMST as zero.  Line E2 is not required.

*                (2) Variable storage area.  Enter a negative value

*                    for ASTORE.  Enter NUMST surface area

*                    and depth pairs values on line E2 are necessary.

*                (3) Power function storage area.  Enter negative

*                    values NUMST and any value for ASTORE.

*                    Two data values are entered on line E2.

*============================================================================

*     E1 line  :

*     JSTORE   : Junction number containing storage facility, or

*                junction name (enter in single quotes).

*     ZTOP     : Junction crown elevation (must be higher than crown

*                of highest conduit connected to the storage junction), 

*                ft [m].

*     ASTORE   : Storage volume per foot (or meter) of depth

*                (i.e., constant surface area) ft3/ft [m3/m].

*                Set ASTORE(J) < 0 to indicate a variable-area

*                storage junction.  ASTORE may be any value for power

*                function storage junction.

*     NUMST    : Total number of surface area/depth pairs on following

*                E2 data lines.  NUMST < 30.   Enter a value of -2 for

*                NUMST to generate area vs. stage using a power function.

*

*   Power function is: A(y) = Coefficient X y^exponent  +  AMEN

*   Minimum area when y = 0 is AMEN from line B2.

*   Volume calculations are integral of this equation.

*

* E1 JSTORE ZTOP ASTORE NUMST

*============================================================================

*                      Line E2 variable storage data.

*     Variable-Area Storage Junction, Stage vs. Surface Area Points.

*============================================================================

*     E2 line     :

*     QCURVE(1,1) : Surface area of storage junction at depth point # 1,

*                   acres [hectares].  Note, lowest area (first entry)

*                   should not = 0.  If it = 0, it will be set to AMEN

*                   (line B2).  If NUMST equals -2 this is the

*                   coefficient of the power function.

*     QCURVE(2,1) : Depth above junction invert at point 1, ft [m].

*                   Note, first depth should = 0.  If not, it will be

*                   set to zero.  Read as elevation if JELEV equals 2.

*                   If NUMST equals -2 this is the exponent of the

*                   power function and is the last value entered.

*

*                   Repeat for NUMST pairs of values if NUMST > 0.

*                   If more than one line is required leave the first

*                   two columns blank in the second etc. line.

*============================================================================