First Mile Guide

WMO First Mile Data Collection Guide

This repository contains all related material pertaining to the SC-IMT Task Team First Mile. The terms of reference of the task team are as follow:

• Draft a list of requirements for the protocols and data formats of the first-mile interface standard.
• Assess existing protocols and data formats against the established requirements.
• Draft a guidance document for the standardization of the first-mile interface, addressing both the protocol and the data format aspects.

This repository is a placeholder for :

• The future First Mile Guide to be presented at INFCOM-4 (in the first-mile-guide directory)
• The material related to the Proof of Concept work that is running from Septembre 2025 to Novembre 2025 (in the src directory)

The Proof Of Concept is based on :

• a protobuf data schema
• a MQTT broker that wil be used to exchange the data between the "Data Senders" (a predifined list of HMEI and WMO Members with publication access rights) and "Data Receivers". Many members of the Task Team will work on their own implementation of a Data Receiver software compliant with the agreed solution.

The src folder contains public material describing the protobuf schema, reference implementation in python, some documentation,...

This is a work in progress folder that everyone interested can have access to.

It has been decided to open the Proof of Concept work to additional parties as "Data Receivers" only. No support will be given to the "Data Receivers" and they can use the available material without guarantee that it will work.

Access to the shared MQTT broker can be made available as subscribe only. Username and password can be requested by creating a new issue on the repository explaining the intention of use and providing some details on the requester. Beyond providing the username/password, no further support will be provided. Additional "Data Receivers" can either use one of the reference implementation provided or develop their own solution. Contributions of additional implementations of "Data Receivers" are welcome.