TdM > MSC Data > Aviation meteorological data
Aviation meteorological data in IWXXM format
The World Meteorological Organization (WMO), under the sponsorship of the International Civil Aviation Organization (ICAO), created the ICAO Meteorological Information Exchange Model (IWXXM) data format to report aviation meteorological information in eXtensible Markup Language (XML) and more precisely in Geography Markup Language (GML).
IWXXM includes representations for products standardized in ICAO Annex 3 Meteorological Service for International Air Navigation and WMO No. 49, Vol II Meteorological Service for International Air Navigation. IWXXM is designed for machine-to-machine operational exchanges of meteorological information. Unlike the traditional alphanumeric code (TAC) forms of the ICAO Annex 3 / WMO No. 49 products, IWXXM is not intended to be directly read by humans; it is designed to be ingested by software acting on behalf of the data user, such as display software or web feature services.
Each IWXXM message contains all of the components that completely describe the product, e.g., issue time, issue status (routine, amendment, etc.), and the specific meteorological parameters, including units of measurement, that constitute the specific Annex 3 product being disseminated. Additional elements found Canadian aviation meteorological bulletins, which are not described in Annex 3, are nevertheless included in IWXXM with the use of extension schemas.
Access
How to access the data
This data is available on the MSC Datamart data server:
An Overview and examples of how to access and use Meteorological Service of Canada open data is available.
License
The end-user license for Environment and Climate Change Canada data servers specifies the conditions of use of this data.
MSC Open Data Services Usage Policy
The MSC Open Data Services Usage Policy determines what constitutes appropriate use of MSC Open Data Services and provides users with best practices for optimal use.
Discovery metadata
Coming soon