ECMWF, as the Entrusted Entity for the Copernicus Climate Change Service (C3S), invites tenders for the provision of two operational services to produce timely, high quality, probabilistic pan-European and global multi-model hydrological seasonal forecast and retrospective forecasts (hindcasts) information, and to make such information available through the Climate Data Store (CDS), in synergy with the Copernicus Emergency Management Service (CEMS) hydrological seasonal forecasting component.

The Invitation to Tender (ITT) is split into two Lots. Tenderers may respond to one or both Lots. For each Lot, ECMWF intends to award a single framework agreement for a period of 24 months, with the right to extend for a further 24 months at ECMWF’s discretion, which shall be implemented via Service Contracts expected to commence in Q1 2022.

Lot 1 covers the provision of the multi-model hydrological seasonal forecast and retrospective forecasts (hindcasts) information service at the global scale. This service is built on the C3S Global Multi-model hydrological Seasonal prediction Service.

Lot 2 covers the provision of the multi-model hydrological seasonal forecast and retrospective forecasts (hindcasts) information service at the pan-European scale. This service is built on the C3S Operational Sectoral Information System for the Water Sector (https://climate.copernicus.eu/operational-service-water-sector).