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                                                                                       2
  Notes for Overflow Info file: First line total number of overflows. Then follows     3
  blocks of lines having the same logical structure, one for each overflow. Each       4
  overflow block starts with the number of the overflow, then a character descriptor.  5
  The next seven lines are parameters specific to each overflow; note that the order   6
  is important. Next block is for kmt changes; note, first line should be set to 0     7
  if there are no kmt changes; each kmt change is i,j, old and new kmt indices. Next   8
  block gives the inflow, source and entrainment regional average index boundaries,    9
  after a blank comment line; each line is imin,imax,jmin,jmax,kmin,kmax. Next block  10
  is the source grid box ijk values and sidewall orientation, with the first line the 11
  number of boxes, followed by each ijk and orientation value, ordered to increase in 12
  i or j, whichever is appropriate. Then follows entrainment grid box ijk and orienta-13
  tion, similar to source, and finally the product grid boxes. Product grid boxes     14
  have one or more sets ordered by increasing k (i.e. depth), one for each group of   15
  gridboxes; first the number of product sets, then each set as number, ijk and       16
  orientation.                                                                        17
                                  Conventions                                         18
                                                                                      19
  Source (src) and entrainment (ent) grid values refer to the grid box that the       20
  overflows flow INTO; product (prd) grid values refer to the grid box from which     21
  the overflow flows OUT OF. All indices refer to the POP T-grid. All of the overflow 22
  grid boxes (i.e. ijk values) are below the bottom topography but have sidewalls     23
  adjacent to active ocean points from which overflow waters flow from or into.       24
                                                                                      25
  Orientation of overflow sidewalls: 1=increasing x direction, 2=increasing y         26
  direction, 3=decreasing x direction and 4=decreasing y direction. As src,ent always 27
  flow INTO an overflow gridbox and prd flows OUT, there should be no ambiguity. (!)  28
  Looking down onto an overflow grid box:                                             29
                                             2                                        30
                                          ________                                    31
                      y ^                |        |                                   32
                        |               3|   ijk  |1                                  33
                        +--->            |        |                                   34
                            x            |________|                                   35
                                             4                                        36
  Bruce P. Briegleb  24 August 2009                                                   37
  gx3v7    kmt pop-ups                30 Nov 2009  remove dms src reg next to sill    38
  28 Sept 2009  all product levels restricted to bottom of step---5 Oct 2009 fill pnt 39
--------------------------------------------------------------------------------------40
 4                              ! Total number of overflows
 1  'Denmark Strait'            ! number and name of overflow
      65.0                      ! latitude of overflow (degrees)
      5.0E06                    ! width of strait at surface (cm)
      450.0E02                  ! source water thickness (cm)
      100.0E05                  ! distance from strait to shelf-slope break (cm)
      3.0E-2                    ! bottom slope just over shelf-slope break (unitless)
      3.0E-3                    ! bottom drag coefficient
    3                           ! 4=number of kmt changes
      7 111 33 32               ! pop up dms src
      7 110 33 32               ! pop up dms src
      7 109 33 32               ! pop up dms src
                                ! regional ijk min and max
      3   5 104 107 33 33       ! inflow imin, imax, jmin, jmax, kmin, kmax
      8  10 109 112 33 33       ! src    imin, imax, jmin, jmax, kmin, kmax
      3   5 104 107 39 39       ! ent    imin, imax, jmin, jmax, kmin, kmax
   4                            ! src ijk orientation, #points
      7 109 33  1               ! i,j,k,orientation (1..4; 1=increasing x sidewall, etc....)
      7 110 33  1
      7 111 33  1
      7 112 33  1
   3                            ! ent ijk orientation, #points
      6 105 39  3               ! i,j,k,orientation (1..4; 1=increasing x sidewall, etc....)
      6 106 39  3
      6 107 39  3
   4                            ! prd ijk orientation, # prd sets
   3                            ! number prd points in set 1
      5 102 44  3
      5 103 44  3
      5 104 44  3
   3                            ! number prd points in set 2
      4 102 46  3
      4 103 46  3
      4 104 46  3
   3                            ! number prd points in set 3
      3 100 48  3
      3 101 48  3
      3 102 48  3
   3                            ! number prd points in set 4
      2  95 49  3
      2  96 49  3
      2  97 49  3
 2  'Faroe Bank Channel'        ! number and name of overflow
      62.00                     ! latitude of overflow (degrees)
      1.5E06                    ! width of strait at surface (cm)
      300.0E02                  ! source water thickness (cm)
      25.0E06                   ! distance from strait to shelf-slope break (cm)
      2.0E-2                    ! bottom slope just over shelf-slope break (unitless)
      3.0E-3                    ! bottom drag coefficient
    3                           ! 3=number of kmt changes
     12  93 38 37               ! pop up fbc src
     12  94 38 37               ! pop up fbc src
     12  95 38 37               ! pop up fbc src
                                ! regional i,j,k min and max
      7  10  93  95 38 38       ! inflow imin, imax, jmin, jmax, kmin, kmax
     13  15  93  97 38 38       ! src    imin, imax, jmin, jmax, kmin, kmax
      7  10  93  96 40 40       ! ent    imin, imax, jmin, jmax, kmin, kmax
   3                            ! src ijk orientation, #points
     12  93 38  1               ! i,j,k,orientation (1..4; 1=increasing x sidewall, etc....)
     12  94 38  1
     12  95 38  1
   3                            ! ent ijk orientation, #points
     11  93 40  3               ! i,j,k,orientation (1..4; 1=increasing x sidewall, etc....)
     11  94 40  3
     11  95 40  3
   5                            ! prd ijk orientation, # prd sets
   3                            ! number prd points in set 1
     10  93 44  3
     10  94 44  3
     10  95 44  3
   3                            ! number prd points in set 2
      9  93 46  3
      9  94 46  3
      9  95 46  3
   3                            ! number prd points in set 3
      8  93 48  3
      8  94 48  3
      8  95 48  3
   3                            ! number prd points in set 4
      6  90 49  3
      6  91 49  3
      6  92 49  3
   3                            ! number prd points in set 5
      3  90 50  4
      4  90 50  4
      5  90 50  4
 3  'Ross Sea'                  ! number and name of overflow
      75.00                     ! latitude of overflow (degrees)
      100.0E05                  ! width of strait at surface (cm)
      400.0E02                  ! upstream source water thickness (cm)
      150.0E05                  ! distance from strait to shelf-slope break (cm)
      3.2E-2                    ! bottom slope just over shelf-slope break (unitless)
      3.0E-3                    ! bottom drag coefficient
    3                           ! 3=number of kmt changes
     60   4 34 33               ! pop-up rss src
     61   4 34 33               ! pop-up rss src
     62   4 34 33               ! pop-up rss src
                                ! regional i,j,k min and max
     60  62   5   7 34 34       ! inflow imin, imax, jmin, jmax, kmin, kmax
     59  62   2   3 34 34       ! src    imin, imax, jmin, jmax, kmin, kmax
     59  61   6   8 40 40       ! ent    imin, imax, jmin, jmax, kmin, kmax
   3                            ! src ijk orientation, 3=#points
     60   4 34  4               ! i,j,k,orientation (1..4; 1=increasing x sidewall, etc....)
     61   4 34  4
     62   4 34  4
   3                            ! ent ijk orientation, 3=#points
     59   5 40  2               ! i,j,k,orientation (1..4; 1=increasing x sidewall, etc....)
     60   5 40  2
     61   5 40  2
   4                            ! prd ijk orientation, # prd sets
   3                            ! number prd points in set 1
     59   6 44  2
     60   6 44  2
     61   6 44  2
   3                            ! number prd points in set 2
     59   7 46  2
     60   7 46  2
     61   7 46  2
   3                            ! number prd points in set 3
     59   8 48  2
     60   8 48  2
     61   8 48  2
   3                            ! number prd points in set 4
     59   9 50  2
     60   9 50  2
     61   9 50  2
 4  'Weddell Sea'               ! number and name of overflow
      75.00                     ! latitude of overflow (degrees)
      100.0E05                  ! width of strait at surface (cm)
      300.0E02                  ! upstream source water thickness (cm)
      150.0E05                  ! distance from strait to shelf-slope break (cm)
      3.2E-2                    ! bottom slope just over shelf-slope break (unitless)
      3.0E-3                    ! bottom drag coefficient
    3                           ! 3=number of kmt changes
     98   4 36 35               ! pop-up wdl shelf
     99   4 36 35               ! pop-up wdl shelf
    100   4 36 35               ! pop-up wdl shelf
                                ! regional i,j,k min and max
     98 100   5   7 36 36       ! inflow imin, imax, jmin, jmax, kmin, kmax 
     98 100   2   3 36 36       ! src    imin, imax, jmin, jmax, kmin, kmax 
     96  98   6   8 40 40       ! ent    imin, imax, jmin, jmax, kmin, kmax 
   3                            ! src ijk orientation, 4=#points
     98   4 36  4               ! i,j,k,orientation (1..4; 1=increasing x sidewall, etc....)
     99   4 36  4
    100   4 36  4
   3                            ! ent ijk orientation, 3=#points
     96   5 40  2               ! i,j,k,orientation (1..4; 1=increasing x sidewall, etc....)
     97   5 40  2
     98   5 40  2
   4                            ! prd ijk orientation, # prd sets
   3                            ! number prd points in set 1
     96   6 44  2
     97   6 44  2
     98   6 44  2
   3                            ! number prd points in set 2
     96   7 46  2
     97   7 46  2
     98   7 46  2
   3                            ! number prd points in set 3
     96   8 48  2
     97   8 48  2
     98   8 48  2
   3                            ! number prd points in set 5
     97   9 50  1
     97  10 50  1
     97  11 50  1
