Table 7.  RANDOM OVERLAP COMPUTATION TABLE
          (For upper level cloud amount when 2 and only 2 levels present)
              Amount Upper Cloud [octa] = 8. * (N - Nh) / (8. - Nh)
     
           _____________________________________________________________
           N\Nh|   7      6      5      4      3      2      1  |   0  |
           __\_|______|______|______|______|______|______|______|______|
               |      |      |      |      |      |      |      |      |
            8  | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 |
           ----|------|------|------|------|------|------|------|------|
            7  |  0   | 4.00 | 5.33 | 6.00 | 6.40 | 6.67 | 6.86 | 7.00 |
           ----|------|------|------|------|------|------|------|------|
            6  |  x   |  0   | 2.67 | 4.00 | 4.80 | 5.33 | 5.71 | 6.00 |
           ----|------|------|------|------|------|------|------|------|
            5  |  x   |  x   |  0   | 2.00 | 3.20 | 4.00 | 5.57 | 5.00 |
           ----|------|------|------|------|------|------|------|------|
            4  |  x   |  x   |  x   |  0   | 1.60 | 2.67 | 3.43 | 4.00 |
           ----|------|------|------|------|------|------|------|------|
            3  |  x   |  x   |  x   |  x   |  0   | 1.33 | 2.29 | 3.00 |
           ----|------|------|------|------|------|------|------|------|
            2  |  x   |  x   |  x   |  x   |  x   |  0   | 1.14 | 2.00 |
           ----|------|------|------|------|------|------|------|------|
            1  |  x   |  x   |  x   |  x   |  x   |  x   |  0   | 1.00 |
           ____|______|______|______|______|______|______|______|______|
     
     
     
     
      Table 8. Number of Reports in which Upper Level Cloud Amounts were Computable
                                    (millions of reports)
      ____________________________________________________________________________
                                  LAND                            SHIPS         
                       Middle Cloud   High Cloud       Middle Cloud   High Cloud
      Number of:       Light  Dark   Light  Dark       Light  Dark   Light  Dark
     
      Type reports      88.0  33.0    88.0  33.0         9.4   2.7     9.4   2.7
      NOL* computed     81.2  31.7    81.1  31.7         8.4   2.5     8.4   2.5
      Level reported    74.7     #    60.3     #         7.1     #     5.5     #
      Cloud observed    33.0  10.0    27.6   6.5         4.1   0.8     2.3   0.8
        Computable      25.7   8.7    20.7   5.3         2.5   0.6     1.0   0.15
        ROL* used       10.1   2.4    11.3   2.3         1.5   0.3     0.7   0.10
     _____________________________________________________________________________
     * NOL signifies non-overlapped amounts and ROL signifies the random 
      overlap assumption.
     # Data not available.