{
"header":
{
  "format":"fixed width",
  "encoding":"ascii"
},
  "elements":
      {
        "CUR SET":  {"description":"Current (set)",             "field_length":2,"column_type":"str","codetable":"current_set"},
        "CUR DFT":  {"description":"Current (drift)",           "field_length":2,"column_type":"str","codetable":"direction_16_of_32"},
        "W A T":    {"description":"Watch",                     "field_length":1,"column_type":"int8","codetable":"probably not: see tape field 10 (core?hour?)"},
        "BF WD":    {"description":"Beaufort wind force",       "field_length":2,"column_type":"str","codetable":"wind_force_beaufort"},
        "PPP":      {"description":"Pressure (mmHg)",           "field_length":3,"column_type":"float16","encoding":"deck_193.higher_order","scale":0.1,"offset":700,"valid_max":799.9,"valid_min":700},
        "V I S":    {"description":"Visibility",                "field_length":1,"column_type":"str","codetable":"visibility"},
        "C H":      {"description":"Cloud type (high)",         "field_length":1,"column_type":"str","codetable":"cloud_type_high"},
        "CLD DIR":  {"description":"Cloud direction",           "field_length":2,"column_type":"str","codetable":"direction_16_of_32"},
        "N":        {"description":"Total cloud amount",        "field_length":1,"column_type":"str","codetable":"cloud_amount_total"},
        "S E A":    {"description":"State of the sea",          "field_length":1,"column_type":"str","codetable":"sea_state"},
        "SWL DIR":  {"description":"Direction of swell",        "field_length":2,"column_type":"str","codetable":"swell_direction"},
        "A M T":    {"description":"Amount of swell",           "field_length":1,"column_type":"str","codetable":"swell_amount"},
        "FOG DUR":  {"description":"Duration of fog(min)",      "field_length":2,"column_type":"int16","scale":15},
        "PCP DUR":  {"description":"Duration of precipitation", "field_length":2,"column_type":"str","codetable":"precipitation_duration"}
  }
}