Campbell Scientific CS135 Lidar Ceilometer - Manual (Page 58)

CS135 Ceilometer
50
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 = '///'.
d5 (1 character) = Cloud amount of the 5th layer in oktas
h5h5h5 (3 characters) = Height of the 5th cloud layer in 10s of metres or 100s of feet, if no 5th
layer is reported h5h5h5 = '///'.
CR LF
= Carriage Return + Line Feed
LINE 4
scale9res9n9 energy9lt9tr9ti_bl9L0112HN159sum CR LF
where
scale (5 characters) = Scale parameter,%, 0 ... 99999. 100% is typical
res (2 characters) = Backscatter profile resolution in metres.
n (4 characters) = Profile length 385, 770, 1400, or 1500 samples.
energy (3 characters) = Laser pulse energy, %.
lt (3 characters including leading +/-) = Laser temperature, degrees C
tr (3 characters) = Window transmission, %
ti (2 characters) = Total tilt angle, degrees
bl (4 characters) = Background light, millivolts at internal ADC input (0 ... 2500)