Annex 1
1 Introduction
2 Laser
ceilometers
2.1 Ceilometer
technical characteristics
2.2 Representative
Ceilometer System A
2.2.1 Transmitter assembly
2.2.2 Receiver assembly
2.3 Representative
Ceilometer System B
2.3.1 Transmitter assembly
2.3.2 Receiver assembly
3 Visibility
sensors
3.1 Visibility
sensor technical characteristics
3.2 Representative
visibility sensor systems
3.2.1 Transmitter assembly
3.2.2 Receiver assembly
4 Precipitation sensors
4.1 Technical characteristics
4.2 Representative
precipitation sensor system
4.2.1 Transmitter assembly
4.2.2 Receiver assembly
5 Sunshine sensors
6 Luminance sensors