European Contrails Forecast V1.0
Current JSON

Abstract

European Contrails forecast product using a multimodel approach and delivered as a WFS (GeoJSON) SWIM webservice. 

Formation of condensation-trail cirrus clouds of ice crystals, also known as contrails are a major contributor to aviation environmental impact.

The formation of persistent contrails depends on the environmental conditions and aircraft/engine technologies.

Contrails probability areas forecast product is computed by MetSafe based on a multi-model approach. This product uses the Schmidt-Appleman criterion to estimate areas (traduced as geographical polygons) where there is a probability of persisting contrails.

Contrails forecast characteristics are:

- +24H forecast by 1 hour step

- 5km geographical resolution over Europe / vertical resolution FL20

- Refresh every time a model is updated (average of 9 updates/day)

- Delivery as polygon with a confidence index

- Ensured quality of service through Service Level Agreement

Independent validation of this forecast will be performed in 2022.

Service Type
SWIM_CANDIDATE
Life Cycle
OPERATIONAL
Business Activity Type
AIRSPACE_ORGANISATION_AND_MANAGEMENT
Intended Consumer
CIVIL_AIR_NAVIGATION_SERVICE_PROVIDER
Information Exchange Category
METEOROLOGICAL_INFORMATION_EXCHANGE
Application Message Exchange Pattern
ASYNCHRONOUS_REQUEST_REPLY
In-Operation Date
01-Jan-2022
Provider
MetSafe

MetSafe proposes an access to global meteorological webservices for the aviation community through its cloud-based services platform. 

Access to data service delivers on a global scale regulated meteorological products, real time adverse weather service (radar, satellite) and numerical weather prediction products.

State of the atmosphere services (wind sand, SO2…) are also proposed based on COPERNICUS data.

Information is delivered through a SWIM yellow profile compliant API with ATM-grade quality of service.

MetSafe platform is powered by multiple meteorological sources. A partnership with MétéoFrance and Météorage ensures access to the latest state of art meteorological products.

Beyond provision of access to data, MetSafe provides tailored expert services such as extraction of meteorological information around the 4D trajectory or weather impact prediction for ATFCM.

Our meteorological webservices are used operationally to support various applications: Air Traffic Control Working position, Electronic flight Bag, fuel optimisation for airline.

MetSafe is based in ENAC Incubator, Toulouse. 

For more details: http://www.metsafeatm.com

Provider Type
PROVIDER_OF_DATA_SERVICES
Support

[email protected]

GET contrails convection forecast

This service allows to retrieve +24H contrails forecast over a bounding box. It uses WFS as a service layer, WFS filtering capabilities are available.

Authentication

Access to MetSafe services requires an access token that connects API requests to your account. See customer onboarding below for access to Contrails Forecast Service.

Operational policy

The contrails forecast service provides information based on probabilistic information. Contrails forecast contains uncertainties. This service shall not be used for safety-critical decision. 

Availability

Contrail forecast is delivered from a European-wide cloud infrastructure ensuring resilience. The service is provided with an ATM-grade quality of service.

The default guaranteed service availability by SLA is 99,5%.

Response time

The default response time is < 5s for 95% of requests, <10s for 99% of requests.

UTC synchronisation

MetSafe platform is synchronized to UTC source. The systems consuming the service shall be synchronised to a UTC time-source.

COLLABORATIVE_VALIDATION
Validation

A collaborative validation with independent actors is planned in 2022 to compare forecast with real tile observation (satellite imagery).

SLA

Service Level Agreement

Information
AIRM

Contrails forecast service complies with AIRM1.0.0

Protection rate-limit

A protection rate limit has been implemented to protect the service from unjustified multiple requests.

Contrails Forecast API

The complete API description is available on MetSafe user portal accessible through a Token.  An access Token can be requested at [email protected].

CONSUMER_SIDE
SWIM_TI_YP_1_0_WS_LIGHT
IPV4_UNICAST
SYNCHRONOUS_REQUEST_RESPONSE
Operations
WFS GetFeatures

Retrieve objects in GeoJSON inside a 4D Bounding Box.

Idempotent
NON_IDEMPOTENT
Synchronous
SYNCHRONOUS
TI Protocol Methods
Yellow Profile
Operation Message
Request/reply
Processing Consideration
Request/Reply

OGC:WFS2.0.0

WFS documentation can be found at:
https://docs.geoserver.org/latest/en/user/services/wfs/index.html

References
Revision Save Date
Mon, 03/25/2024 - 23:19
Schema version
v2