EUMETNET Supplementary Observations Data-Hub (E-SOH)

Introduction

A range of user needs, particularly those associated with short-range forecasting and nowcasting, require access to higher spatial and temporal resolution observation data than are currently being exchanged. NMHS observing systems are generating some of the data that are needed but barriers prevent these from being exchanged. NMHSs resource constraints mean that further expansions to the networks to meet high-resolution needs will be very difficult, so instead, relationships are being developed with 3rd parties who can offer meteorological observation data, such as the Hydrological community and operators of low-cost Automatic Weather Stations (AWS). Mechanisms are required to collect, process, and provide access to these data according to the data policies agreed.

Project description

EUMETNET has initiated an activity under its Observations Capability Area to consider the benefits of building a ‘Supplementary Observations Data-Hub’ which would be designed to receive, process, and make available these additional observations in real-time. The focus initially will be on enabling the exchange of as much data as possible from NMHS operated land surface AWSs and gaining access to additional rain-gauge data.

This type of data hub is nothing new, with several having been deployed within EUMETNET already. What makes it a potential WIS demonstration project is the fact that it is expected to be deployed on cloud infrastructure(s) and would include functionality to make the data available in a ‘federated’ manner, using web-based services to support machine-to-machine API based interfaces. It is anticipated that the system will also generate  BUFR messages to exchange unrestricted data over the GTS when possible.

The project is currently in its initial stages, focusing on better defining the requirements of EUMETNET Members and undertaking a Scoping Study, identify existing systems and WIS2.0 compliant data standards that could be used to build the E-SOH. Consideration will be given to both centralized and distributed architectural designs.

Project Lead

Bruce Truscott (UK)