About the GCW Data Portal

The GCW Data Portal, or catalogue, is dedicated to data management and to providing specific information on datasets. The data management component is an enabling service in the sense that it identifies relevant datasets and their locations and provides an interface that can be used in the evaluation of GCW data and products. The portal will support simple visualization (generation of maps or diagrams like time series) and transformations such as reformatting and re-projection of data, if the data are served through the appropriate interfaces and forms.

GCW Data Management

Any issues related to GCW Data Management will be handled through this project.

How to encode data

The best way to integrate with the GCW Data Portal at the data level is to serve data (observational or analysed/simulated) through the Open-source Project for a Network Data Access Protocol (OPeNDAP). OPeNDAP and the Network Common Data Format (NetCDF) both use the Common Data Model which simplifies data handling. When serving data through OPeNDAP, data must be encoded according to the Climate and Forecast convention (CF). Starting with version 1.6 of the CF conventions, standardised approaches to encoding:

How to connect your data centre

The GCW Data Portal is a metadata driven data portal. This implies that data are hosted and served by contributing data centres which expose discovery metadata on the datasets. Once initiated, the GCW Data Portal regularly (once daily) harvests discovery metadata from the contributing data centres and ingests this in the GCW Data Catalogue which is integrated in this site.


In order to facilitate interaction with the GCW community contributing to as well as exploring GCW data management services, the GCW Data Portal team has set up a number of services which are linked in the menu. As usual a contact form is provided, along with some guidance material. However, a system for tracking user requests has also been included in the setup.


Subscribe to News