Service definition for the En-route Significant Weather Information Subscription and Request Service 

00.00.01

2023-06-22

The En-route Significant Weather Information Subscription and Request Service provides the service consumer with en-route and approach meteorological information for weather that may affect the safety of aircraft operations.

The service consumer can subscribe to the service, specifying what sort of information is of interest, and receive information as it becomes available.

It is also possible to send a direct request, using a request-reply mechanism, to the service to get the relevant meteorological information.

The meteorological information is issued by the designated Meteorological Watch Office. The meteorological information is only intended to be used by service consumers within the aviation domain.

There shall be a service policy to ensure that only service consumers within the aviation domain can use the service.

The service policy shall include a requirement that service consumers cannot pass the information obtained from the service to non-aviation users without prior authorisation from the service provider.

The service shall ensure consumer authentication in accordance with the EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile through the use of a X.509 certificate or the use of a username/password.

The service shall ensure provider authentication in accordance with EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile through the use of a X.509 certificate.

The service shall ensure that satisfactory authorisation is put in place according to EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile requirement SWIM-TIYP-0070.

The meteorological information offered by the service shall satisfy the applicable sections of Commission Implementing Regulation (EU) 2017/373 of 1 March 2017, taking into account the specific requirements for providers of meteorological services in the Acceptable Means of Compliance (AMC) and Guidance Material (GM) to Part-MET.

The meteorological information offered by the service shall satisfy the quality requirements expressed in ICAO Annex 3.

• PUBLISH_SUBSCRIBE
• SYNCHRONOUS_REQUEST_REPLY

En-route Significant Weather Information Subscription and Request Service Request Interface

Allows the service consumer to select and subscribe to meteorological information of interest. It allows the service consumer to manage the subscriptions e.g. to unsubscribe.

Note: This is an optional interface. Many service providers will prefer to receive subscription requests by email.

• Generate graphical representations of data in support of responsibilities.
• Ensure safe operations by responding to changes in the situation.
• Provide in-flight information updates.
• Support the operations of search and rescue
• Require information on unique weather constraints such as turbulence, convection, icing, etc..

• Generate graphical representations of data in support of responsibilities.
• Ensure safe operations by responding to changes in the situation.
• Provide in-flight information updates.
• Support the operations of search and rescue
• Require information on unique weather constraints such as turbulence, convection, icing, etc..

• Ensure safe operations by responding to changes in the conditions of the airspace infrastructure.
• Require information on unique weather constraints such as turbulence, convection, icing, etc..

This role is recognised in the SESAR Deployment Programme as a service consumer of the aerodrome and en-route services.

The real-time aspects will have an impact on the service architecture.

• Ensure safe operations by responding to changes in the conditions of the airspace infrastructure.
• Require information on unique weather constraints such as turbulence, convection, icing, etc..

• Support situational awareness of ACC units regarding observed and/or forecasted significant weather
• Support capacity planning for APP and TWR units to increase separation due to expected e.g. thunderstorms, strong winds, low visibility,…

• MET providers shall have the possibility and ability to consume needed information to perform their tasks e.g. flight briefing or to update their forecast products based on the latest weather information

This role is not recognised by the SESAR Deployment Program as a service consumer. However, it is recognised in ATM Master Plan (https://atmmasterplan.eu/data/enablers/20417016.)

Moreover, looking at the EU Reg. 2017/373, a MET Service Provider has to support stakeholders and for that MET-data is needed from other MET-providers. Also such MET-data is needed for their own purpose to evaluate the correctness of forecasts.

• Not applicable

• Not applicable

• In case a provider of data services also offers/handles MET data, the provider shall have the possibility and ability to receive the data needed

• MET providers shall provide dedicated forecast product(s) to the NM in order to support daily operations. Mainly this forecast is used for pre-planning the next day, raising awareness of the NM on any possible restrictions/slotting due to hazardous weather

• Not applicable. Currently there are special products for local warnings. Partly via the MET-Report, but also via dedicated warning messages (strong winds, temperatures below 0°, thunderstorms,….).

• Provide information to ground handlers especially in regard to hazardous weather which might affect their operations (thunderstorms, freezing rain,..)

A military defence centre.

Note: these centres, e.g., check for diplomatic clearance.

• Not applicable