 IR
Lidar Ceilometer
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Chilbolton is also equipped with a 905 nm lidar ceilometer.
This instrument is much more sensitive to small particles than the radar,
getting a much stronger return signal from liquid water clouds. The
ceilometer can detect aerosol particles in the lowest 2 km of the atmosphere.
Scientists use the ceilometer to measure the sizes of precipitation
particle and to discover whether a cloud colder than zero degrees is
made up of ice or water. The latest results from the ceilometer can
be found on the Chilbolton
Weather Web.
Details of the ceilometer
Wavelength |
905 nm |
Range resolution |
30 metres |
Minimum recorded backscatter |
10^-7 (srad m) ^-1 |
To see measurements taken with the IR lidar ceilometer
look in the research section of the site.
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