WPCN 
      2      B       N   Z           Roman 10cpi  | p              Px \	    @  X@Epson LX-800                         EPLX800.PRS  x 
   @         XN|X@ USUK  3'                                          3'Standard                                  6&                                          6& Standard    X-800         +Y                                           2      7     9   Z   I  	      +Y | p          HP LaserJet III                      HPLASIII.PRS x 6X    @  ,\,VX@+ 2         X    v   6  p      USUK  3'                                          3'Standard                                  6&                                          6& Standard        HPLASIII.PRS x 6X    +                                           ? x x x ,    wx 6X   @ 8; X@ ? x x x ,   x     ` B; X ? x x x , #  Ax 6N h 
; XHV " G ( $ , : hG     P 7hPa8Document g        Document Style  Style                                       X X`	`	  `	

a4Document g        Document Style  Style                                      .   2 ?  k   N  k        $  v     a6Document g        Document Style  Style                                    G  X  

a5Document g        Document Style  Style                                   }    X (#

a2Document g        Document Style  Style                                  < o  
   ?                    A.        

a7Document g        Document Style  Style                                   y    X  X`	`	 (#`	

 2 
  t   q       	   	  
   "
  Bibliogrphy          Bibliography                                             :   X 
 (#

a1Right Par         Right-Aligned Paragraph Numbers                        : ` S  @                   I.  
  X (#

a2Right Par         Right-Aligned Paragraph Numbers                        	C  	   @`	                  A.    `	`	 (#`	

a3Document g        Document Style  Style                                  
B 
 b 
   ?                     1.        
 2 
     
       
   \     
  a3Right Par         Right-Aligned Paragraph Numbers                        L ! 
   `	`	 @P
                  1.  `	`	   (#

a4Right Par         Right-Aligned Paragraph Numbers                        U  j   `	`	  @                  a.    `	 (#

a5Right Par         Right-Aligned Paragraph Numbers                        
_ o    `	`	   @h                  (1)    hh# (#h

a6Right Par         Right-Aligned Paragraph Numbers                        h     `	`	   hh# @$                  (a)  hh#  ( (#

 2                       a7Right Par         Right-Aligned Paragraph Numbers                        p fJ    `	`	   hh# ( @*                  i)  (  h- (#

a8Right Par         Right-Aligned Paragraph Numbers                        y W" 3!   `	`	   hh# ( - @p/                  a)  -  pp2 (#p

a1Document g        Document Style  Style                                  X q q
    
   l   ^)                       I.           ׃

Tech Init             Initialise Technical Style                              .  
k    I. A. 1. a.(1)(a) i) a)                 1 .1 .1 .1 .1 .1 .1 .1                                      Technical                                             2           C          x  a5Technical         Technical Document Style                               ) W D                   (1)  .  a6Technical         Technical Document Style                               )  D                   (a)  .  a2Technical         Technical Document Style                               < 6  
   ?                    A.        

 a3Technical         Technical Document Style                               9 W g 
   2                    1.        
  2      Q               ?  a4Technical         Technical Document Style                               8 bv {    2                     a.        
 a1Technical         Technical Document Style                               F ! < 
   ?                         I.           

 a7Technical         Technical Document Style                               ( @ D                   i)  .  a8Technical         Technical Document Style                               (  D                   a)  .   2 J!      /     N   )    w  Pleading              Header for numbered pleading paper                     P@  n                         $]        X    X`	hp x (#%'0*,.8135@8:<H?A                                         y    *                    d       d d                                                                         y y    *                    d       d d                                                                         y 

HH 1

HH 2

HH 3

HH 4

HH 5

HH 6

HH 7

HH 8

HH 9

H 10

H 11

H 12

H 13

H 14

H 15

H 16

H 17

H 18

H 19

H 20

H 21

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H 28	 + 	 ӋDoc Init             Initialise Document Style                                	  
 
               p-p-p-    I. A. 1. a.(1)(a) i) a)                 I. 1. A. a.(1)(a) i) a)                                     Document g                                           Courier 10cpi Courier 10cpi (Bold) Courier 10cpi (Italic) CG Times (Scalable)  "  m+O6^$(8<<k](((<k((((<<<<<<<<<<((xkx5kWLRYLGWY(/TLmYWEWP@LYWqWWN(((<<(5<5<5(<<!!<!]<<<<,/!<<W<<55<5x( <<  <<<(((( <<<<<< <<<! W5W5W5W5W5kPR5L5L5L5L5(!(!(!(!Y<W<W<W<W<Y<Y<Y<Y<W<W5Y<W<W<W<Y<E<W5W5W5R5R5R5R5Y<L5L5L5L5W<W<W<W<W<W<Y<Y<(!(!(!(!XC/ T<L!L!L!L!L!Y<YGY<Y<W<W<kWP,P,P,@/@/@/@/L!L!L!Y<Y<Y<Y<Y<Y<qWW<N5N5N5  Y<L!Y<P,@/L!W<W<Y<W<Y<(     <<   (      ((WxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxNWWW< <<(511<<i<<<kk<*<<<<k* (( >><kxx<<II[x<x<W< GddCCk     (>      <  q   *"xxxxWWxxx<Wxx>WWkkxxx             <kkxxx  k<((xxxxxWIxkWWWWWWWWWWx(x<W<C<kxWxP<(<W5<EW]NxxWWWWWWWWWWxxxxx8xWWWWxxxxxxxxxxxxx xxxxxxWWxxxxxxdPI]xWx   xx    3G                                               WWWW                       xx          x        xx         xWWW<WWxWWxxx   WW   W5   WWWW5   WWWWW   WWW   WWW   WWW   WWWWWWWWWWWWWW     W   WWWWWW    WWWWWWWW(   WWW(   WWW(   WWW(   WWWW   W                                                   W   WWWW   WWWWILC  ICP5L/N5Y<W5(!T5PCmCY5P<W5WIE<I< <L5W5PIWC]IIII/<!!555I5I I II ((<<<<<          <<         IIIIIIIIIIIIIIIIIII///////<<<<<<<<<<<<<<<<<<<<!!!!!!!!!!!!5555555555555555555IIIIIIIIIIIIIIIIIIII(  E  WLY(WWI<5( x 2         |!                                   h  ;
  l  g    U   ?)   4              U UUUUUUUUUUUU  
  ,,,
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N *     9 0ef<I #  2    @kC Ll`@#      S-point
     C     P        0B S-point  	$   4         000@@@PPP```ppp Bh} , A          
                                                 	   
        	                                  	                  
    	     
   	    	       $             	L  5  % 
 '  	
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                  
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     	               	    
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   
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  7 &         ""      
                                   	  
                 	  
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            
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ODDO,           
ODDO, 
                 	ODDO,(    ODDO,\DDDO%\DDD%\DDND%\DDND%\ DDND% 
  -DNDO!   -DND!    	             -DD!            -DND!            -DND!           -DND!              -DND!4  %"DND!\!DND!\!DD!\!DD!\ DD!  %DD!  )DNDO!       	    DND%        DND%
          DND%       DND% 
           DND%,   DND%\DNDO%\DND)\ DDNDND)\DNDDD)  .DNDDDO)  .DNDO	DD
DDO0             !DNDO	DD
DDO0   	        DNDO	DD
DDO0        DNDO	DD
DDO0     #DNDO	DD
DDO0          DNDO	DD
DNDO0\DNDO	DND
DDO0\DNDO
DNDDD1\DNDO
DNDDDOC\ DNDO
DDDOC\DNDO
DDDOC\DNDO
DODDD\DNDO/DDOG\ DNDO(DDOG\DND(DDOG\DND(DDOG DND(DDOGh DNDODDOGhDNDDDOGhDDDNDOGhDNDDNDOGh DNDDNDDhDNDDNDOChDNDDDOChDNDDDOCh DNDD@hDNDDO?hDDNDO?hDDO?h DDO<hDD<hDD<hDD<h DDDhDDO
DOhDDO
DOhDDO
DDOh DDDhDDDOhDDNDOhDDOh DDOhDDhDDhDDh DNDh DDDDhDNDh DDh DDhDDOhDDOhDDOh DDOhDDhDDhDDh DDNDhDDDh DDO
DDh DDO
DDNDhDDO
DNDDhDDODNDDhDDODNDDDh DDODDDDhDDODNDDNDhDDODNDODNDhDDODNDO$DNDh DDDNDO$DhDDODNDO$DhDDODNDO$DOhDDODNDO0h DDODNDO0hDDODNDO0hDDDNDO0hDDODNDO0h DDODND-hDDODNDO,hDDDNDO,hDD4DNDO,h DD4DNDOhDD4DNDhDDO4DNDhDDO7DNDh DDO7DNDOhDDO7DNDhDD8DNDhDDO?DNDh DDO;DNDhDDO;DNDhDD<DDhDD?DNDh DD?DNDhDD?DNDhDDO?DNDhDDVDND DDVDNDH DNDVDNDHDDVDDHDDOVDDOHDDOdDDOH DDOdDDO       
DDOdDDO   DDOdDDO    	   DOdDNDO  	 
  
DOdDDO
     
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 DDO    DDO(  DDOH DOH 􀉲DHH  h DDhA 
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U    e     P        	)4#    h  G #     2 ,$K/F(h#  2    @kC Ll@#     x
U    e     P        ,%xG #     2 -
$/&m#  >2    @kC Ll7@#     B
     =     P        0.$B  	)      h  G #     2 ,K/#h#  2    @kC Ll@#     S
U    e     P        ,!S  	,    h  G #     2 /2oh#  2    @kC Ll@#     x
U    e     P        0xG #     2 162m#  >2    @kC Ll7@#     E
     =     P        g1E    ?                      1                                  ""              1                                                  Figure 1                                           Figure 1                            9.8. ANCOPOL

 The following three main tasks can be performed by using
ANCOPOL:

  An estimation of the extinction constant and input rates
and the construction of concentration field,
  Decomposition of diffuse input,
  Calculation of mass balance.

Ail three are carried out during the primary processing. However,
the latter two tasks can be repeated an arbitrary number of times
during retrying.

   ? 
  Beginning of Primary processing. The processing of the first
task takes most of the computing time. We have to be aware that
the processing must be repeated several times until we get an
acceptable estimate of extinction constant k. In this section
this task is described in details. The data on concentration to
be processed are illustrated in Figure 9.8.1.
  !  xP    w              ?)  d d     SLIKA.WPG                                                Qr    ?    Figure 9.8.1. Data on concentration for the prediction of the
9	
 concentration field.  $  """"! "$  When we start ANCOPOL the first screen is a mask as in the
previous two cases except that "ANCOPOL" is written instead of
"MAPBASIN" or "CURRMOD". By pressing <ENTER> we change the
screen. There are three messages and a question.

 1) Concentration field with the existing currents.
 2) Concentration field with the zero currents.
 0) Exit.

The user can choose two options in order to continue the 0  ,         p-p-p- P")  !  0  processing and can exit ANCOPOL. The processing by the second
option is simpler because it is presumed that the current field
is zero. We shall assume that the user has already constructed
currents by processing CURRMOD and continues to make an analysis
of concentration field and corresponding mass balance by choosing
the option 1. Therefore, the user must press <1><ENTER>.
  A  x`	    w              	$  n Z     AAA.TIF                                                 QP 
   ?   
 Figure 9.8.2. Defining the boundary conditions.  $  """"A "$  In the case that there is no file with the current field the
user is informed about this circumstance by the following message

 !   Q!                     d d Q  RECENICE.AUX                                                  There is no file with a current field. Therefore, the
processing proceeded with the zero velocity in the
 considered region.
 $  """"! Qp!$ 
Otherwise, the user must answer the next question about retrying
with <N> (or <n>). We know that a concentration field can be
changed by omitting stations, changing values at stations and
scaling the field as a whole. Being aware of this it is necessary
to remind the user about current field in the present processing
so that the first illustration is current filed. As usually the
user can scan optionally the values of current field. After
finishing an inspection of currents there must be defined
boundary conditions of concentration field corresponding to the
illustrated current field. There appears a display with the
numerical mesh of basin as in Figure 9.8.2. and the message
"Press any key..." at the lower right corner of the illustration.
After pressing a key, the following message appears at the upper
right corner of display @  ,        p-p-p-! `	"  A  Q!p!%  !  @  Ԍ A  h-                     d d Q                                                       h        To define boundary conditions
along open boundary, one of the
following options must be
chosen for each open boundary. $  ""  --  A -$ 
 A - 
 A - 
 A - 
 A - 
 A - 
 A - 
  --x""   
After pressing <ENTER> this box is replaces by another one (see
the picture on the right), a part of open boundary is marked by
twinkling, encompassing box and also a sound signal is heard
 y a  H
                    <^ `d d    BBB.TIF                                                       y  $  ""::  a :"$ trying to catch the user's eye
 a :" to this part of open boundary.
 a :" The user must define the
 a :" boundary condition at this part
 a :" of open boundary by choosing one
 a :" of four offered possibilities.
 a :" We can choose the homogeneous
  ::""   Neuman boundary condition briefly denoted as "Gradient = 0",
Dirichlet boundary condition with the concentration equal to the
natural concentration denoted as "Natura concentration", the zero
net flux of substance through the open boundary denoted by
"Transport = 0", and finally the Dirichlet boundary condition
with any fixed value of concentration along the boundary. Any of
these is chosen by moving the cursor over the corresponding four
boxes "G", "N", "T" or "D". Let us assume that the user's choice
is "Transport = 0" by moving the cursor to the small box denoted
by "T" and pressing <ENTER>. The same procedure must be repeated
for the other parts of open boundary. Sometimes only two
possibilities are offered instead of four ones just described.
For instance, if the current is flowing out of the basin we can
have only the homogeneous Neuman condition or Dirichlet condition
with the natural concentration along the boundary. We assume that
the boundary value of concentration field along the third part
of open boundary is defined to be 3 ppb. When the last part of
open boundary is finished the processing continues with the
message:

a  @8A`"                  p   d d Q  BUCO.SSS                                             @8                            ATTENTION !
In the case you have defined conditions on the open
boundary incorrectly, you can ABORT the processing.
$  ""AA  a A $ 
 a A  
 a A  
 a A  
 a A  
 a A  
  AA`"""   
 Do you wish to continue the processing? (Y/N):

giving the user an opportunity to define the boundary conditions
anew in the case of an erroneous defining of any of them. The
next message is

 The accepted depth is: 10.2 m

We know that there are two rivers with mouth in the basin. There
are not data of concentration field at these locations in the
file MANUAL.BAY although these location must be included among
Bkpoints. Therefore, the user is informed that the concentration
field must be defined at these additional points. Generally, at P  ,        p-p-p-1 -	  A  :H
"  a  A`" &  a  P  each mouth the concentration field must be specified by a
Dirichlet boundary condition. The message is

+  
                  p  d d Q  BUCO.SSS                                                      ADDITIONAL DATA ON CONCENTRATION
There exist water inflows for which
concentrations are not defined. You
are asked to define  concentrations
at such locations in the following.
+$  ""X

   
$ 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  

""   
and after pressing <ENTER> there appears an illustration of the
basin with current filed and a twinkling mark at that grid knot
which represents the river mouth (see Figure 9.8.3). When the
illustration is finished there appears a box with the message
"Press ENTER to continue". The user must press <ENTER> and this
box is replaced by another one:

   	                     d d Q  BUCO.SSS                                                   Define concentration at the location
which is marked in the illustration.
Only  positive  values are accepted.
Enter in ppb: $  ""		   	$ 
  	 
  	 
  	 
  	 
  	 
  		""   
The user must insert the value of concentration at the river
mouth. From the chart in Figure 9.8.1, the value must be 19.5
ppb. After entering this value and pressing <ENTER> the user must 
 
   ? p  y   R                     ;  } d     AAA.TIF                                                       y  $  ""p   "$ 	 Figure 9.8.3.ă
  " The concentrations at
  " river mouths must be
  " defined by entering
  " values during the
  " processing.
  " 
  " 
  " 
  " repeat the same
  " procedure for the
  " other river mouth.
  " When the definition
  " of concentrations at
  " river mouths is
  " finished the user
  " is asked wether to
  " redefine these
  " concentration in a
  H&""   case of mistyping.

   ? '  Input from air. The user's file MANUAL.BAY contains data on
input from air. An input distribution must be interpolated from
data and the user is informed about this task by the message

   bH                     d d Q  BUCO.AUX                                             H      An interpolation of the input-distribution from data must
i
 be carried out, first. 
This interpolation is performed in the usual way as described in
Section 9.4. The user is informed about locations of measuring `  ,        p-p-p-A 
    	7     "*    "    `  $  ""  "" "$ stations and then the process of interpolation is carried out as
described previously. There are messages about the minimal and
maximal values of input field, as well as the net input into the
basin. Then the user is asked:

The input distribution can be scaled in order to fit data best.
Do you wish such scaling? (Y/N):

so that the user can fix this input distribution by answering <N>
and can allow a scaling by answering <Y>. The resulting input can
be illustrated. The user is informed

   @A                     d d Q  BUCO.AUX                                             @        An illustration of the input from air is displayed. $  ""H
AA   A $ 
  A  
  A  
  A  
  AAh""   
and an illustration can be obtained as usually.

   ?   Finishing the Primary processing. All objects necessary for
the definition of concentration field are defined and
illustrated. The construction of concentration field is the next
task of processing. The stiffness matrix is formed and the
solving starts. The user is informed about the process of solving

The field: 1 is being calculated.
The continuous input has been read out.
                                                                                                  D8p "                                                                                 ҇


 number of knots:
 entries of stiffness matrix:
 @           p-p-p-! "    A     @   @           p-p-p-! "    A     @  @@< @@< 
occupied

   1219
  91425 @           p-p-p-! "    A     @  
available

   1500
 115000 h           p-p-p-&                p-p-! "    A     h  ԯ
     SOLVING THE SYSTEM:

     forward reduction:

   ? !  backward substitution:hh% 
 @  `"        p-p-p-! "    A     @  


 @           p-p-p-! "    A     @  


902 @           p-p-p-! "    A     @   h          p-p-p-&(#                 p-p-! "    A     h  ԯe.t.c until the third concentration field is finished. In this
way the concentration field is constructed for three extinction
constants according to the description in Section 7.7. For each
constructed field the quadratic error is calculated and that
concentration field is chosen which has the smallest error. In
the case that this field correspond to the initial value of
extinction constant the processing proceeds with the message

 The prediction for the extinction constant is:  8 days

In the case that the choice is the field with the smaller or
larger value of extinction constant there appears an additional
message informing the user about necessary actions to be @  ,       p-p-p-! "    A     @  undertaken in order to improve the result. The corresponding
messages can be of the following two types:

Reconstructed fields are insensitive to the variation
of half-life of extinction in the interval (E/2,2E).

The user is advised to repeat the processing with extinction
constant  5.33.

In the case of former message there is no need to repeat the
processing. In the case of latter message the user should insert
the new value of extinction constant into the user file
MANUAL.BAY and repeat the processing after the present session
is over. To avoid a repetition of processing we intend to accept
the predicted value of extinction constant and continue the
processing. From Figure 9.8.1. we see that there exist four point
inputs. For one of them the input value is fixed and equal 1000
kg/d. The other three values must be predicted from the
surrounding measured concentrations. The user is informed that
these inputs are scaled with the scaling factor 227. Their
precise values will be given at the end of processing. The first
message is about the fit of concentration field to data:

 Measured and calculated concentrations:

   ?   D8p "                                                                                E0

( "                                                                             ҇S-station `	`	 

  1
  2
            p-p-p-  coordinates

  3 23
  5 15           p-p-p-  measured

12.00
11.00           p-p-p-  calculated

12.01
15.76           p-p-p-  differences

 .01
4.76 J          p-p-p-,p                p-p-J  ԯe.t.c. for the remaining 17 stations. Unfortunately some of data
on concentration on coastal part of boundary are not defined
correctly, so that the concentration field at these Bkpoints is
smaller than the field at surrounding points. This disadvantage
is caused in most cases because data are not representative for
the considered stationary transport problem. Data can originate
from various seasons e.t.c. The user must be informed about this
discrepancy of data:

There is a Bi-point at which the concentration field has a
smaller value than the values in its neighbourhood. This can
cause a large error in the mass balance.  Therefore,  you are
advised to change such  point into an S-point and run  the
present  option once more

a  FROM THE BEGINNING.      

                       Such points are:

 E0

( "                                                                            D&$""                                                                             ҇No. 

1
   '        p-p-p-  grid coord.

20 11   '        p-p-p-  concent.

.160E+02   '        p-p-p-  max. concent.

.196E+02 D  '        p-p-p-&(''      %        p-p-D  ԯe.t.c. for the remaining 6 locations. The user is also informed
that the net input from two rivers is 800 kg/d.
 An illustration of the predicted concentration field is
displayed in a familiar way. Therefore, we skip this part of
description. After an inspection of field is finished the user
is informed that results can be documented by using RETRYING:   ,       p-p-p-  Ԍ  Q                     d d Q  BUCO.LST                                                      For documentation there can be created (ASCI) HPGL -
files of the
   a) grid for the calculation of concentration field,
   b) reconstructed concentration field.
To create them, you have to run ANCOPOL once more with
the same option i.e. (2) or (2), and with RETRYING.$  ""  ""Qp!$ 
There remains to calculate mass balance. The first message is:

Do you wish to calculate the mass balance? (Y/N):

and the user answers with <Y><ENTER>. There follows the following
sequence of massages:

The area of the region is     .56E+02 km^2.

For part:  1 of the open boundary,
the output is equal (plus = out):             .94E03 kg/day.

For part:  2 of the open boundary,
the output is equal (plus = out):             .13E+04 kg/day.

For part:  3 of the open boundary,
the output is equal (plus = out):             .64E+02 kg/day.

For part:  4 of the open boundary,
the output is equal (plus = out):             .31E+00 kg/day.

Transform. or sedimentation rate:             .77E+03 kg/day.

 `	`	 press ENTER to continue

The mass balance can be calculated for each part of basin as
described in Section 7.4., This is the last part of primary
processing. The user is asked wether to proceed with this
possibility by the message

@! b#                     d d Q  BUCO.LST                                                                     CHECKING MASS BALANCE LOCALLY              
       
The quality of approximate (numerical) solution can be
checked by calculating the mass balance in various
sub-regions of the basin.
@$  ""@""@!"$ 
The processing finishes if the user answers with <N>. Otherwise,
the user can check mass balance for various parts of basin. This
function is described in Section 7.4. The processing starts with
an illustration of basin with outlined boundary and filled
interior (see Figure 9.8.4). The cursor (small cross) is
positioned in the middle part of basin and there appears the
message on the top of illustration "Define the lower left corner
by moving the cursor and press ENTER" informing the user that
this part of processing must be carried out. In the same time @  ,        p-p-p-! Qp!?   #")  ! @  there appear a box in the lower right corner of illustration with
the grid coordinates of cursor as in the picture on the left. The
user must imagine a rectangle covering a part of basin, must move

   ""              1             !                                   1                                  wA  (                  @  d d d  BUCO.LST                                             (      

	square coordinates:	
	lower left : 31 15 	
	upper right: 52 27 	


w$  "" gg""  Ag$     `	     ?              	   d     BBB.TIF                                              `	  wLN 
   ?   Figure 9.8.4.  Checking mass
H balance locally.  ,  gg"" gg::  Ag :", 
 Ag :" 
 Ag :" 
 Ag :" 
 Ag :" 
 Ag :" 
 Ag :" 
$  gg::::   :"$ 
  :" the cursor to the lower left
  :" corner of this imagined
  :" rectangle and press <ENTER>. Let
  :" us assume that its grid
  :" coordinates are 31 and 15.
  :" Immediately after defining the
  :" lower left corner the previous
  :" message is replaced by another
  :" one: "Do the same with the upper
  ::h""   right corner". Let these coordinates be 52 and 27. Hence, the
coordinates are the same as in the picture on the left hand side.
If the mouse is available the cursor is moved by mouse. If a
mouse is not available to move the cursor the user can use any
of keys with arrow or <PgUp>, <PgDn>, <Home> and <End>. If the
user tries to define a too large rectangle there appears the
message "The square cannot be enlarged. Press any key to
continue.", so that the user has to diminish the rectangle after
this message. After the rectangle is defined the user reads
information about inputs and follows instructions. If the
rectangle is defined as mentioned there appear six boxes with
information about Bkpoints, Qkpoints, Fkpoints, input from
air, sedimentation rate and net mass balance for the defined
rectangle. After checking mass balance locally at several
locations of basin the users finishes this part of processing and
exits ANCOPOL.
 There is a file INFORM.AUX created during the processing so
that the use can edit this file, or save it to another directory,
for a later use during the composition of report. Such file is
created anew during any RETRYING in which the user answers
affirmatively the question: "Do you wish the mass balance?
(Y/N):". In the present case this file has the same content after
each RETRYING. However, in some cases the content of this file
is changed as described in one of next titles.

   ? #  Continuous input of substance along coastal boundary. In
order to describe some other possibilities of processing with
ANCOPOL we intend to process the same set of data with the same
definition of numerical mesh, but without currents. In addition,
we wish to demonstrate the possibility of defining the continuous
flux of substance through the boundary. Therefore, the user is
asked to edit DOC\MANUAL.BAY to move to the last line of file and
omit x in front of xBC, of the last line. The new last line of
this file must be

BC,
 @  ,         p-p-p-! g  A :"n    @  Ԍin accordance with description of data in Section 9.3.
 Let us start ANCOPOL, the option (2) with nonretrying. In
this case all information from the previous processing is erased.
Hence, the processing starts from the beginning and a part of
previous steps must be repeated, again. It is important for the
present discussion that all the boundary conditions at open
boundary are Neuman conditions. Hence, the user must choose the
option "G" in defining these conditions. After the user finishes
an inspection of input distribution from air, before the grid is
displayed there appear the following message
                  1             A                   ""              1             A                   
(a b8H
                      d d s  BUCO.LST                                          	   x8        Data on continuous input are not included yet. The other
data, relevant for the concentration field are illustrated,
first, in the following display.                         
($  """"a"$ 
Then the grid is illustrated. This grid contains two objects less
than in the previous case, and they are the Bkpoints at two
river mouths. River flows are not used in the present case and,
therefore, there is no need to define concentrations at these
locations. After pressing <ENTER>, the user is informed that the
continuous input must be defined along the coastal part of
boundary. Let us point out that it cannot be defined along a part
of open boundary. The next screen is a brief rehearsal of the
procedure to be used in defining the continuous input. The
continuous input extends along a connected part of coastal
   C  boundary beginning at some point xB  Bc and ending at a point xE
   C   Bc. Only one piece of such input can be defined. There are
three functions for this purpose, B(eginning), S(ampling) and
E(nding). When the user presses <ENTER> there appears an
illustration of basin as in Figure 9.8.5. The user must move the
   C  cursor to the point xB, press <B> and move along Bc until reaching
   C  the first sampling point xS (see Figure 9.8.6), where the
concentration must be defined. At this point the user presses
<S>. Immediately there appears a small window in the middle
location of right margin asking the user to enter the value of
concentration. The users enters the value presses <ENTER> and
   C  proceeds with the sampling until the point xE. At this point the
user presses <E> and the screen disappears. The continuous input
is defined. The result can be seen on the next screen where the 














 0  +	        p-p-p- H
"  a	 0  Ԍ H
ř     p                   	$  s Y     AAA.TIF                                           
   p  ?'sL 

   ?  Figure 9.8.5. Starting to
define a continuous input.  $  ""  ""   $     
O     ?              ?.  d d     AAA.WPG                                           
   
  wPJ`    ?    Figure 9.8.6. The beginning
and endpoint of continuous
 input.    ,  ""    ",   " H
  " illustrated numerical mesh
  ""   contains all previous objects and additionally Bkpoints which
are defined by the described procedure. These additional points
of input are treated equivalently with the other Bkpoints so
that the remaining part of processing is the same as in the
previous case. When the concentration field is constructed and
illustrated the user is asked about performing a new procedure
which must be described in more details.

   ? P  Diffuse input. Basic notion and methods for a decomposition
of the diffuse input are given in Section 6.6. In ANCOPOL this
procedure is implemented in the following way. The input is
defined by means of input from air, by input through the open
boundary, by Qkpoints, and Bkpoints. If there is no Bkpoints
the net input can be easily obtained by summing all the inputs
into the basin. The same is true if only one Bkpoint is defined.
In this case the input can be obtained by the simple rule. First
we calculate the input from this Bkpoint by using the equation:
input from Bkpoint = output from the basin  input into the
basin. This input must be added to the other input terms in order
to get the net input into the basin. However, in the case of more
Bkpoints this simple rule cannot be applied. Therefore, the user
must divide Bkpoints into groups belonging to the same source.
There can be 9 groups at most. All Bkpoints belonging to the
first group are denoted by B1, those belonging to the second
group by B2, e.t.c. The decomposition of input means a
representation of input by a sum of component inputs where each
component corresponds to one of defined groups. Hence, there must
be 2 groups of Bkpoints at least to carry out the decomposition
of diffuse input. In accordance with the description in Section
6.6 the decomposition can be preformed only if the boundary
conditions are homogeneous. This is the reason that the
decomposition could not be carried out in the previous
processing. One of boundary conditions was defined by nonhomogeneous Dirichlet condition (3 ppb along the third part of
open boundary). In the present case the boundary conditions are
homogeneous and a decomposition is enabled. It starts with the
message:

The decomposition of the concentration field is a time-consuming
process. The user is advised, therefore, to execute this option @  ,
        p-p-p-! &   
 "   
 @  after the half-life of considered substance had been optimized.

Do you wish the decomposition to be computed? (Y/N): 

We assume that the answer is <Y>. The next message is

The number of groups of Bi-points is equal 5.

The user is informed again about Bkpoints for which the
concentration is less than at surrounding gridknots. It is
stressed that this may cause an error in the mass balance. The
decomposition is carried out by solving certain systems as
described in Section 6.6. Therefore, the user has to wait until
the solver finishes. The next message is

The number of point sources is 4 and their total input is 1000
kg/day.

Let us remind that the scaling factor for three point inputs is
zero. The following question about mass balance is familiar from
the previous description. It is assumed that the users answers
<Y>. There appears a number of messages regarding values of
output and input through various parts of the open boundary as
described previously. However there is one new notion. The user
is informed that the relative error of decomposition is around
16%, a quite large value. There is a suggestion that this large
value can come from a large gradient of concentration field at
open boundary. We know that it cannot be the reason because all
the boundary conditions are homogeneous Neuman conditions. The
actual reason is already mentioned two times. There are 11 Bkpoints for which the concentration field is less than at
neighbouring grid knots. In principle, the user should edit file
MANUAL.BAY, correct values at these Bkpoints and process data
from the beginning. We intentionally disregard this suggestion
and proceed with the processing. The user can check the mass
balance locally.
 The last function of processing is an illustration of
   ?  component concentration fields. The concentration field c(x) on
D is decomposed as
   C x !  #b(#      d d d d d       
#  d d w                                                       b   's `; (9.8.1)      L c( bold x) ~=~ c sub 0( bold x) ~+~ sum from {j ~=~1} to M c
sub j( bold x),x 6X   @8; X@x 6X   @8; X@x 6X   @8; X@       c      c    M    r+ j     
 c     j        (      z )      0       (       )     + 1       (      	 )      B
 ,      x     Z x     R	 x      J             +        I ߜ$  ""x""!! "$ where co(x) is caused jointly by input from air, Fkpoints and
   C ,# Qkpoints, while each ck(x) is defined exclusively by the
corresponding group of Bkpoints. Sometimes it is important to
illustrate each component and save a document about it, such as
a HPGLfile. Therefore the user is informed and asked

An illustration follows of the component of total
field that is caused by:
 a) input at Fpoints,
 b) the total input/output through the open boundaries,
 c) input at Qipoints.

The component 0 of the total field is illustrated.
 0  ,         p-p-p- (#"v&  !  0  ԌDo you wish this illustration? (Y/N):

   C  If the answer is <Y> the component co(x) of (9.8.1) is
illustrated by isolines, in colours and corresponding documents
can be saved. Otherwise, this part is skipped. The next question
is

The last step of processing consists of a sequence of
illustrations, each representing one component of the total
field. This process ends after your first negative reply to the
question about illustration any of the component fields.

The component 1 of the total field is illustrated.

Do you wish this illustration? (Y/N):

Again, if the answer is <Y> there appears an illustration of the
   C L
 concentration field c1(x) as in the previous case. In the case of
   C  answer <N> the user exits to DOS. Each component field ck(x) can
   C  be illustrated and documented. Some of component fields ck(x) can
   C  be trivial, ck(x) = cB, where cB is the background or natural
concentration. Such components are skipped.


   ?   Other possibilities.

 The file COMPLEX.BAY which is created during the
installation of packages does not contain data which are
generated with a caution, i.e. in a realistic manner. Rather,
data are arbitrary so that a lot of erroneous tries and dead
alleys are met during a processing of data from this file. At
each such incorrect or meaningless step of processing the user
is informed about errors, advised what to do, and the processing
aborts. Therefore, at such interruption the user must edit
COMPLEX.BAY remove erroneous records and continue the processing
by using retrying. After finishing a processing of data in 
COMPLEX.BAY starting with any of two saved initial configuration
a user can get a better insight about abilities of ANCOPOL.
 For a detailed analysis of pollution obtained results can
be additionally processed by methods which are not included in
ANCOPOL. Such are the calculation of blooming, input from one
layer into another, resuspension from sediment into the water
column e.t.c. If the structure of generated files in a session
is known such additional processing can be carried out by user.
Also available extensions of ANCOPOL containing such functions
can be obtained from the first author. 
 To worn a user that the roughness of numerical mesh can have
a large influence on obtained results of processing we supply the
file BODEN.BAY with two configuration files representing a lake
with 5 rivers entering the lake and one exiting it. If the data
are processes by the first configuration the error in mass
balance is about 50%. For the second configuration cutting a
smaller part of lake from the rest of lake the error of mass
balance is only 2%. Hence, a large mesh step can produce a large
error in mass balance, consequently in the constructed
concentration field.