Copernicus C3S2_360 Regional Climate Reanalysis Timely Updates

Tender description

ECMWF, as the Entrusted Entity for the Copernicus Climate Change Service (C3S), invites tenders for production of timely updates of regional reanalyses datasets that have been produced in the first phase of Copernicus Programme (COP1). The aim is to extend further in time the two datasets called respectively Copernicus European Regional Reanalysis (CERRA) and Copernicus Arctic Regional Reanalysis (CARRA) until a new generation of regional reanalyses will be available. To preserve the consistency of both datasets these timely updates shall be produced using exactly the same data assimilation systems and forecast models that were utilized in COP1. Lot 1: Regional Reanalysis Products for Europe ECMWF intends to award a single framework agreement (for a maximum duration of 48 months) for the generation of timely updates of regional reanalysis products for Europe. Proposals will be considered offering solutions based on the already existing pan-European regional reanalysis. In COP1, the contract included the production of a new generation of reanalysis using a system (CERRA) at high resolution (5.5 km grid spacing, 106 levels in the vertical, plus an uncertainty estimate from a 10-member ensemble of data assimilations at 11 km) from 1984 to 2021. The datasets are produced on a geographical area that includes the Euro-Cordex domain using the Harmonie-Aladin system for the atmospheric reanalysis, and the Mescan-Surfex system for the surface. Please note the important additional information in Section VI.3) regarding funding and eligibility. Lot 2: Regional Reanalysis Products for the Arctic ECMWF intends to award a single framework agreement (for a maximum duration of 48 months) for the generation of timely updates of regional reanalysis products for the Arctic. Proposals will be considered offering solutions based on the already existing reanalysis for the two European Arctic domains. In COP1, the contract was to produce an Arctic regional reanalysis over two subdomains of interest for Arctic change processes and economic activities in the area using the Harmonie-Arome system. The reanalysis covers the period 1991-2021 with a horizontal grid spacing of 2.5 km. Please note the important additional information in Section VI.3) regarding funding and eligibility.