World MeteorologicalWorld MeteorologicalOrganisationOrganisation

Use of Radio Frequency bandsUse of Radio Frequency bands

forfor

meteorological systemsmeteorological systems

Jean-Michel Rainer

Importance of radiocommunications for Importance of radiocommunications for meteorological operation and research meteorological operation and research

Radiocommunication Services Radiocommunication Services used for meteorologyused for meteorology

Specific radiocommunication services:Specific radiocommunication services:– Meteorological Aids ServiceMeteorological Aids Service– Meteorological-Satellite ServiceMeteorological-Satellite Service– Earth Exploration-Satellite Service Earth Exploration-Satellite Service

(passive)(passive)– Earth Exploration-Satellite Service Earth Exploration-Satellite Service

(active)(active)

Radiocommunication Services Radiocommunication Services for meteorologyfor meteorology

As special systems of generic As special systems of generic radiocommunication services:radiocommunication services:– Meteorological weather radars and Wind-Meteorological weather radars and Wind-

profiler radars of the Radiolocation Serviceprofiler radars of the Radiolocation Service

As users of Radiocommunication Services:As users of Radiocommunication Services:– Fixed Service, Mobile Service, etc.Fixed Service, Mobile Service, etc.

Commission for Basic Commission for Basic SystemsSystems

CBS has been actively involved in CBS has been actively involved in radio frequency matters since early radio frequency matters since early 90s, with the increasing pressure on 90s, with the increasing pressure on frequency bands for meteorological frequency bands for meteorological activities activities (ref. decisions of WARC 92)(ref. decisions of WARC 92)

Commission for Basic Commission for Basic SystemsSystems

CBS decided in 1994 to establish a CBS decided in 1994 to establish a group on Radio Frequency group on Radio Frequency Coordination to review, coordinate Coordination to review, coordinate and support all frequency matters and support all frequency matters pertaining to meteorological activitiespertaining to meteorological activities

CBS/Steering Group on Radio CBS/Steering Group on Radio Frequency CoordinationFrequency Coordination a)a)Keep under review allocations of radio-frequency Keep under review allocations of radio-frequency

bands and assignments of radio-frequencies to bands and assignments of radio-frequencies to meteorological activities for operational meteorological activities for operational requirements (telecommunications, instruments, requirements (telecommunications, instruments, sensors, etc.) and research purposes, in sensors, etc.) and research purposes, in coordination with other technical commissions;coordination with other technical commissions;

b)b)Co-ordinate with WMO Members, with the Co-ordinate with WMO Members, with the assistance of the WMO Secretariat, to:assistance of the WMO Secretariat, to:

ensure the proper notification and assignment of ensure the proper notification and assignment of frequencies used for meteorological purpose;frequencies used for meteorological purpose;

determine their future use of the radio spectrum for determine their future use of the radio spectrum for meteorological purpose.meteorological purpose.

CBS/Steering Group on Radio CBS/Steering Group on Radio Frequency CoordinationFrequency Coordination c)c)Keep abreast of the activities of the Radio Keep abreast of the activities of the Radio

communication Sector of the International communication Sector of the International Telecommunication Union (ITU-R), and in particular Telecommunication Union (ITU-R), and in particular of the Radio communication Study Groups, on of the Radio communication Study Groups, on frequency matters pertaining to meteorological frequency matters pertaining to meteorological activities, and assist the WMO Secretariat in its activities, and assist the WMO Secretariat in its participation in ITU-R work;participation in ITU-R work;

d)d)Prepare and co-ordinate proposals and advice to Prepare and co-ordinate proposals and advice to WMO Members on radio-regulation matters WMO Members on radio-regulation matters pertaining to meteorological activities with a view to pertaining to meteorological activities with a view to ITU Radio communication Study Groups, Radio ITU Radio communication Study Groups, Radio communication Assembly, World Radio communication Assembly, World Radio communication Conferences and related communication Conferences and related regional/global preparatory meetings;regional/global preparatory meetings;

CBS/Steering Group on Radio CBS/Steering Group on Radio Frequency CoordinationFrequency Coordination

e)e)Facilitate the coordination between WMO Facilitate the coordination between WMO Members for the use of frequency bands allocated Members for the use of frequency bands allocated to meteorological activities with respect to:to meteorological activities with respect to:

Coordination of frequency use/assignments between Coordination of frequency use/assignments between countries;countries;

Coordination of frequency use/assignments between Coordination of frequency use/assignments between various radio communication services (e.g. meteorological various radio communication services (e.g. meteorological aids and DCPs) sharing the same band.aids and DCPs) sharing the same band.

CBS/Steering Group on Radio CBS/Steering Group on Radio Frequency CoordinationFrequency Coordination f)f)Facilitate the coordination of WMO with other Facilitate the coordination of WMO with other

international organizations which address radio-international organizations which address radio-spectrum planning, including specialized spectrum planning, including specialized organizations (e.g. organizations (e.g. CGMS, SFCGCGMS, SFCG) and regional ) and regional telecommunication organizations (e.g. CEPT, telecommunication organizations (e.g. CEPT, CITEL, APT);CITEL, APT);

g)g)Assist WMO Members, upon request, in the ITU Assist WMO Members, upon request, in the ITU coordination procedure of frequency assignment for coordination procedure of frequency assignment for radio communication systems sharing a frequency radio communication systems sharing a frequency band with meteorological radio communication band with meteorological radio communication systems.systems.

Use of radio spectrumUse of radio spectrum

ITU Radio Regulations (Frequency bands allocations, procedures, .)+ ITU-R Recommendations

National Radio Regulations:National Table of Frequency allocations

procedures and technical/operational regulations

Users & operators, including NMHSs

Use of radio spectrumUse of radio spectrumRole of NMHSsRole of NMHSs

Inform and coordinate with their respective national Inform and coordinate with their respective national Radiocommunication authority to:Radiocommunication authority to:– ensure that ITU-R regulations & recommendations ensure that ITU-R regulations & recommendations

related to meteorological activities are adequately related to meteorological activities are adequately reflected in national regulations in order toreflected in national regulations in order to

meet national meteorological requirementsmeet national meteorological requirements ensure proper operation & planning of international ensure proper operation & planning of international

meteorological systemsmeteorological systems

– obtain frequency assignments needed for operationobtain frequency assignments needed for operation– notify and register ALL systems operating in notify and register ALL systems operating in

radiocommunications services for meteorology, in radiocommunications services for meteorology, in particular MetSat, MetAids, Met Radarsparticular MetSat, MetAids, Met Radars

Changes to radio spectrum regulationsChanges to radio spectrum regulations

WRC and ITU Council decide on next WRC Agenda

ITU-R carries out technical studies

ITU-R/CPM final technical report

WRC decides

Administrations

(Countries)develop

proposals

RegionalRadiocom.Groupse.g. APT, CEPT, CITEL...

Changes to radio spectrum regulationsChanges to radio spectrum regulations

WRC and ITU Council decide on next WRC Agenda

ITU-R carries out technical studies

ITU-R/CPM final technical report

WRC decides

Administrations

(Countries)develop

proposals

RegionalRadiocom.Groupse.g. APT, CEPT, CITEL...

Involvement of NMHSs, WMO, Met. Sat/EES Involvement of NMHSs, WMO, Met. Sat/EES operatorsoperators

As ITU-R members:NMHSs (in Admin. Delegations)WMO,Met. Sat/EES operators,Organisations

NMHSs

NMHSs, WMO,Met. Sat/EES operators,Organisations

NMHSs (in Admin. Delegations)

As Observers:WMO,Met. Sat/EES operators,Organisations