C3S2_601_bis Advancing an Ensemble-Based, Multi-Scale Ocean Data Assimilation System for Climate Applications

Description

ECMWF, as the Entrusted Entity for the Copernicus Climate Change Service (C3S), invites tenders to help advance the ocean data assimilation methodology in support of climate applications, specifically Earth System reanalyses and initialisation of seasonal forecasts, key elements of the C3S. ECMWF intends to award a single Framework Agreement for a period of maximum 30 months, which shall be implemented via a single multi-annual Service Contract expected to commence in January 2026 and with an end date not later than 30 June 2028. Portal instructions: Some of the ITT documents are accessible under the ‘Attachments’ box at bottom right of this page. The full set of ITT documents which are provided inside the response questionnaire are only accessible by registering an interest in this opportunity (see the 'Expression of interest window' at top right). Please refer initially to the ‘ECMWF eProcurement Portal Guidance for suppliers’ file in the Attachments box as this document will help you navigate the portal and locate the necessary information in order to submit a proposal. Please note that the contact email address shown under 'Contact details' is not monitored, and any messages sent to this email address will not be attended to. Questions / clarifications concerning this ITT must be submitted via the Messaging area of the ITT, which can be accessed through the My Activities page of the Portal once you have logged-in and registered your interest in this opportunity. Keywords: Ensemble Data Assimilation