Campbell Scientific CS135 Lidar Ceilometer - Manual (Page 64)

CS135 Ceilometer
56
If detection status is 2 or 3 h2 = Second highest cloud base reported
If detection status is 4 h2 =
Height of highest signal detected
If detection status is 0, 1 or 5 h2 = "/////"
h3 (5 characters) = 3rd Height
If detection status is 3 h3 = Highest cloud base reported
If detection status is 0, 1, 2, 4 or 5 h3 =
"/////"
flags (8 characters) = Alarm or warning information 4-byte hex coded
As for CT25K message 1.
CR LF = Carriage Return + Line Feed
LINE 3 (SKY CONDITION)
__d_h1h1h1__d2_h2h2h2__d3_h3h3h3__d4_h4h4h4 CR LF
(note spaces)
where
d (1 character) = Data available
0 to 8 Amount of lowest layer in oktas
9 Vertical visibility only available
-1 No sky condition data available
99 Insufficient data
h1h1h1 (3 characters) = Height of the lowest cloud layer in 10s of metres or 100s of feet
d2 (1 character) = Cloud amount of the 2nd layer in oktas
h2h2h2 (3 characters) = Height of the 2nd cloud layer in 10s of metres or 100s of feet, if no 2nd
layer is reported h2h2h2 = '///'.
d3 (1 character) = Cloud amount of the 3rd layer in oktas
h3h3h3 (3 characters) = Height of the 3rd cloud layer in 10s of metres or 100s of feet, if no 3rd
layer is reported h3h3h3 = '///'.
d4 (1 character) = Cloud amount of the 4th layer in oktas
h4h4h4 (3 characters) = Height of the 4th cloud layer in 10s of metres or 100s of feet, if no 4th
layer is reported h4h4h4 = '///'.
CR LF
= Carriage Return + Line Feed