Policy on Intellectual Property Right (IPR)
Annex 1
1 Introduction
1.1 Daily meteorological operations
1.2 Monitoring climate change
1.3 Other users
2 Characteristics of radiosonde operation
3 Radio-frequency spectrum used in operations for WMO reporting
3.1 Results from WMO survey
3.2 Radio-frequency spectrum used in Western and Northern Europe
3.3 Radio-frequency spectrum used in North and South America
4 Operational requirements
5 Future spectrum requirements
5.1 Very strong upper winds
5.2 Manpower efficiency resulting from highly automated systems
5.3 Issues related to the cost of radiosondes
5.4 Independence from international NAVAID systems
5.5 Spectrum congestion
5.6 Current improvement of spectrum efficiency
5.7 Error detection/correction
6 MetAids availability requirements
6.1 Propagation conditions
6.2 Critical periods of flight
6.3 Synoptic operations radiosonde data availability requirements
6.3.1 Radiosonde systems operated in 403 MHz band
6.3.2 Older radiosonde systems operated in the 1 680
MHz frequency band
6.3.3 Newer systems operated in the 1 680 MHz
frequency band
6.4 Summary of data availability requirements
7 Radiocommunication characteristics of current radiosonde systems
7.1 Transmitter characteristics
7.2 Receiving systems
7.2.1 403 MHz frequency band
7.2.2 1 680 MHz frequency band
8 Radiocommunication characteristics of dropsonde systems
8.1 Operational practices for dropsondes
8.2 Dropsonde system characteristics
8.3 Dropsonde future plans
9 Radiocommunication characteristics of rocketsonde systems
9.1 Operational practices for rocketsondes
9.2 Rocketsonde system characteristics
9.3 Rocketsonde descent profile