*        Optional line H0 to read variable percent-of-impervious-area-with-

*   zero-imperviousness on H1 lines (new, near or at end).  These variable

*   values will be used instead of the constant PCTZER from B4 line.

*        Insert H0 line before first H1 line to read optional PZ parameter

*   on every H1 line.

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

*H0 * No parameter required.  Omit if not using optional variable PCTZER.  

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

*    Enter Subcatchment Data on line H1.  Repeat for each subcatchment

*                (Maximum of NW different subcatchments).

*

*          Note:  Variables with asterisks can be modified using

*          the Default/Ratio option.  If any of H2-H5 lines follow for

*          this subcatchment, must have a non-ratio/default line follow

*          this ratio/default line.  That is, cannot have H1 ratio/default

*          line followed immediately by H2 or H5 line.

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

*       H1 Line    :

*        JK        :  Hyetograph number (based on the order

*                     in which they are input, in Group E3).

*        NAMEW     :  Subcatchment number or name.

*        NGTO      :  Channel/pipe or inlet (manhole) number for drainage.

* ***See new parameter IFLOWP below to direct flow to another subcatchment.

*        WW(1)*    :  Width of subcatchment, ft [m].

*                     This term actually refers to the physical width of

*                     overland flow in the subcatchment and may be estimated

*                     as illustrated in the text or by ratio of subcatchment

*                     area to average length of overland flow.

*        WAREA*    :  Area of subcatchment, acres [ha].

*        WW(3)*    :  Percent imperviousness of subcatchment,

*                     (percent hydraulically effective or directly

*                      connected impervious area).

*        WSLOPE*   :  Ground slope, ft/ft (dimensionless).

*        WW(5)*    :  Impervious area Manning's roughness.

*        WW(6)*    :  Pervious area Manning's roughness.

*        WSTORE1*  :  Impervious area depression storage, in. [mm].

*        WSTORE2*  :  Pervious area depression storage, in. [mm].

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

*        Last three parameters on line H1 if Horton equation

*                   is used, INFILM = 0 on data group B1.

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

*        WLMAX*    :  Maximum initial infiltration rate, in./hr [mm/hr].

*        WLMIN*    :  Minimum (asymptotic) infiltration rate, in./hr [mm/hr].

*        DECAY*    :  Decay rate of infiltration in Horton's equation, 1/sec.

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

*        Last three parameters on line H1 if Green-Ampt equation

*                   is used, INFILM = 1 on group B1.

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

*        SUCT*     :  Average capillary suction, in. [mm] of water.

*        HYDCON*   :  Saturated hydraulic conductivity of soil,

*                     in./hr [mm/hr].

*        SMDMAX*   :  Initial moisture deficit for soil, volume

*                       air/volume voids (fraction).

*

*      IF INFILM = 2 or 3, the maximum infiltration volume is entered

*        next on the H1 line.  This entry is needed in this case **OR** if

*        additional parameters IFLOWP and PZ are also entered.  Do not

*        bypass; include at least a zero if IFLOWP or PZ are entered.    

*

*        RMAXINF   :  Maximum infiltration volume, in. [mm] of water.

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

*                Option for directing runoff from one overland flow plane to another.

*                Input of this parameter is optional and required only if redirection

*                of overland flow is desired.

*

*                IFLOWP    :  = 0, Overland flow from three subareas goes directly

*                                  to subcatchment outflow (historical procedure).

*                             = 1, Flow from impervious subarea (with and without

*                                  depression storage) flows onto pervious subarea.

*                             = 2, Flow from pervious subarea flows onto impervious

*                                  subarea (with depression storage).

*                             = 3, Case 0 above, but subcatchment flow is directed

*                                  to another *subcatchment*, indicated by NGTO.

*                             = 4, Case 1 above, but subcatchment flow is directed

*                                  to another *subcatchment*, indicated by NGTO.

*                             = 5, Case 2 above, but subcatchment flow is directed

*                                  to another *subcatchment*, indicated by NGTO.

*

*                                For IFLOWP = 3,4 or 5, runoff from one

*                                subcatchment may be directed over another.  

*

*                                For all cases of IFLOWP not equal to zero, the runoff is

*                                directed to the appropriate subarea or subcatchment 

*               uniformly over the entire subarea or subcatchment, 

*               in the manner of rainfall.  A separate continuity check 

*               is maintained so that the total amount of rainfall 

*               is not confused. 

*

*                                In all cases, pollutants, if simulated, follow the flow. 

*               However, pollutant routing uses aggregated flow, over

*               whole subcatchment, with option for variable quality

*               parameters as a function of land use.  But land use

*               coverage CANNOT correspond to pervious-impervious parts

*               of subcatchment.  If such correspondence is desired, need

*               to have a subcatchment with just one land use and just

*               pervious or impervious.  

*                                See J3 lines for information on possible pollutant removal. 

*                                -------------

*                                If H0 line is used above, insert parameter PZ here.

*                                Otherwise, may omit.

*

*      PZ           : Percent of impervious area in subcatchment with

*                     zero depression storage.  These variable PZ values

*                     are used instead of constant PCTZER on line B4. 

*                     Default is PCTZER.  If you really want zero, use

*                     a tiny, positive non-zero value for PZ.  

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

*  =====> SURFACE WATER DATA

*  JK  NAMEW  NGTO  WIDTH  AREA    %IMP  SLP   IMPN    PERVN   IDS    PDS    SUCT HYDCON SMDMAX RMAXINF  IFLOWP  PZ

H1  1   100    1    100.0   300.    20.0 .001   .04    .30      .05   .10    4.00   1.00  .34    5.0       0

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

*         Input Groundwater Subcatchment Data on lines H2, H3 and H4.

*

*   Data groups H2, H3, and H4 describe the groundwater portion of the

*   subcatchment.  They should follow the correct H1 data group line.  There

*   are a maximum of NGW subcatchments with groundwater simulation allowed.

*

*     Note:  Variables with asterisks can be modified using the

*     the Default/Ratio option.  Indicator variable is NMSUB.  Be sure

*     to include all three H2-H4 lines if entering Default/Ratio data.

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

*       H2 Line    :

*        NMSUB     :  Subsurface subcatchment indicator variable,

*                     must be same as preceding NAMEW on H1 line.

*        NGWGW     :  Number or name of inlet, channel or pipe for

*                     subsurface drainage.  Does not have to be the

*                     same as preceding NGTO for surface runoff.

*        ISFPF     :  Indicator variable for saving soil moisture,

*                     water table elevation, outflows, inflow, and

*                     ET for printing (max 100 locations).

*                     = 0, do not save subsurface information, or

*                     = 1, save subsurface information for printing.

*        ISFGF     :  Indicator variable for saving soil moisture,

*                     water table elvation and outflow for graphing.

*                     (Max 100 locations.)

*                     = 0, do not save subsurface information, or

*                     = 1, save subsurface information for graphing.

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

*        Note:  See Figure X-1 for definition of elevation variables.

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

*        BELEV*    :  Elevation of bottom of water table aquifer, ft [m].

*        GRELEV*   :  Elevation of ground surface, ft [m].

*        STG*      :  Elevation of initial water table stage, ft [m].

*        BC*       :  Elevation of channel bottom or threshold stage

*                     for groundwater flow, ft [m].

*        TW*       :  Channel water influence parameter

*                     >= BC, average elevation of water in channel

*                        or pipe over run, ft [m] or,

*                     < 0, (e.g., -1) channel water influence will be

*                     determined by depth in channel or pipe at the end

*                     of the previous time step.

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

*  GROUNDWATER DATA

*  NMSUB NGWGW ISFPF ISFGF BELEV GRELEV STG   BC   TW

H2  100   1     1      0    0.0   20.0  5.00 5.00 5.00

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

*        Input Groundwater Flow Coefficients And Exponents from

*                 (Equations X-24 and X-25) on line H3.

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

*       H3 Line    :

*        A1*       :  Groundwater flow coefficient, in/hr-ft^B1 [mm/hr-m^B1].

*        B1*       :  Groundwater flow exponent, dimensionless.

*        A2*       :  Coefficient for channel water influence,

*                     in/hr-ft^B2 [mm/hr-m^B2].

*        B2*       :  Exponent for channel water influence, dimensionless.

*        A3*       :  Coefficient for the cross product between groundwater

*                     flow and channel water, in/hr-ft^2 [mm/hr-m^2].

*        POR*      :  Porosity expressed as a fraction.

*        WP*       :  Wilting point expressed as a fraction.

*        FC*       :  Field capacity expressed as a fraction.

*        HKSAT*    :  Saturated hydraulic conductivity, in./hr [mm/hr].

*        TH1*      :  Initial upper zone moisture expressed as a fraction.

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

*  A1      B1   A2  B2  A3  POR  WP  FC  HKSAT  TH1

H3 4.5E-5 2.6  0.0  1.0 0.0 .46 .15  .30 5.0    .301

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

*                   Input more groundwater parameters on line H4.

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

*       H4 Line    :

*        HCO*      :  Hydraulic conductivity vs. moisture content

*                     curve-fitting parameter (Eqn. X-21), dimensionless.

*        PCO*      :  Average slope of tension versus soil

*                     soil moisture curve (see Figures X-2, X-3 and

*                     X-4), ft/fraction [m/fraction].

*        CET*      :  Fraction of maximum ET rate assigned to the upper zone.

*        DP*       :  Coefficient for unquantified losses,

*                     (Eqn. X-23), in./hr [mm/hr].

*        DET*      :  Maximum depth over which significant lower zone

*                       transpiration occurs, ft [m].

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

*  HCO  PCO   CET  DP     DET

H4  10.  15.  0.35 2.E-03 14.0

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

*   Define subcatchment response to infiltration/inflow on H5 line.

*   See explanation of F3 and F4 lines for additional detail.

*

*   Any desired subcatchment may define response parameters.  Generated I/I

*   will enter in channel/pipe or inlet NGTO.  The sewered area defined on

*   the H5 line is used, not the subcatchment area.  The response is defined

*   as a fraction RDIIR from each of the three triangular UHs defined on

*   one of the F4 lines.  The fractions do not have to sum to 1.0.

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

*  Input H5 line only for a subcatchment for which I/I response is desired.

*  Lines H1-H5 follow in groups.  Do not "cluster" all H5 lines together.

*

*  H5 Line  : Line identifer

*  SEWAREA  : Sewered area, ac [ha]

*  RDIIR(1) : Fraction of first UH response toward total I/I response.

*  RDIIR(2) : Fraction of second UH response toward total I/I response.

*  RDIIR(3) : Fraction of third UH response toward total I/I response.

*  ICURVE   : Indicator for which set of three UHs to use, from sequence

*             of F4 lines.  (E.g., if ICURVE = 2, use second set for

*             this subcatchment.)

*

*  If SEWAREA is entered as a negative number, then values on first H5

*  line is for the month of January.  Eleven additional H5 lines will then

*  be read for each month of the year with the following parameters only:

*    RDIIR(1),RDIIR(2),RDIIR(3)

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

*   SEWAREA RDIIR1 RDIIR2 RDIIR3 ICURVE

H5   -100  0.03333 0.03333  0.0333  1  * January

H5         0.03333 0.03333  0.0333     * February

H5         0.03333 0.03333  0.0333     * March

H5         0.03333 0.03333  0.0333     * April

H5         0.03333 0.02222  0.0222     * May

H5         0.03333 0.02222  0.0111     * June

H5         0.03333 0.02222  0.0        * July

H5         0.03333 0.01111  0.0        * August

H5         0.03333 0.02222  0.0        * September

H5         0.03333 0.02222  0.0        * October

H5         0.03333 0.03333  0.0111     * November

H5         0.03333 0.03333  0.0222     * December

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

*  Additional subcatchment with no subsurface data or I/I data.

*  JK  NAMEW  NGTO  WIDTH  AREA    %IMP  SLP   IMPN    PERVN   IDS    PDS    SUCT HYDCON SMDMAX RMAXINF

H1  1   200    20    50.0   100.    30.0 .001   .04    .30      .05   .10    3.00   1.00  .34     5.0

*  No I/I data. 

H1  1   300    30   150.0   400.    10.0 .002   .04    .30      .05   .10    4.00   0.50  .34     5.0

H2  300   30    1      1    0.0   20.0  5.00 5.00 5.00

H3 4.5E-5 2.6  0.0  1.0 0.0 .46 .15  .30 5.0    .301

H4  10.  15.  0.35 2.E-03 14.0

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