9.3. The DPTH Data Record (Optional) - Water Depth

      2   5  7   11
    - --- -- ---- ----------
   |X|   |  |DPTH|          |
    - --- -- ---- ----------
       |  |   |        |
       |  |   |        |_(1)Water Depth(F10.0)
       |  |   |             (Default Value 1000.0)
       |  |   |
       |  |   |_Compulsory Data Record Keyword(A4)
       |  |
       |  |_Optional User Identifier(A2)
       |
       |_Compulsory END on Last data record in data category(A3)

(1) Note that the water depth is fundamental to the calculation of all wave properties.