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EUROPEAN CENTRE FOR MEDIUM RANGE WEATHER FORECASTS (ECMWF) has floated a tender for C3s2_620 Improved Treatment of the Stratosphere in C3s Reanalyses. The project location is Germany and the tender is closing on 04 Feb 2026. The tender notice number is 18649-2026, while the TOT Ref Number is 133537939. Bidders can have further information about the Tender and can request the complete Tender document by Registering on the site.
Procurement Summary
Country: Germany
Summary: C3s2_620 Improved Treatment of the Stratosphere in C3s Reanalyses
Deadline: 04 Feb 2026
Posting Date: 12 Jan 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 133537939
Document Ref. No.: 18649-2026
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: EUR 1900000
Purchaser's Detail
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Login to see detailsTender Details
The objective of this contract is to improve the analysis of the stratosphere in C3S reanalyses by preparing and evaluating observational datasets which will be used to constrain temperature and humidity fields in the stratosphere and lower mesosphere as well as completing and testing the IFS developments required to assimilate this data. One output of this phase of the work will be a timely assessment of the performance of ERA6 in the stratosphere shortly after production is complete for the initial streams (2006-2026). A second aim of this work is to assess the effectiveness of model bias correction methods applied to earlier epochs in reanalysis, for deployment in future C3S reanalyses. The activities proposed here will deliver a comprehensive assessment of the ERA6 stratospheric temperature and humidity analysis as well as delivering fully evaluated extensions to the IFS to allow the assimilation of new observations of temperature and humidity in the recent period (2004-present) as well as the data sparse past (1970s-1990s).
Doc Title: C3S2_620 Improved treatment of the stratosphere in C3S reanalyses
Contract Type: services
Document Type: Contract Notice
Reference Number: C3S2_620
Contract Type: services
Estimated Value: 1900000 - EUR
Authority Type: int-org
Doc Title: C3S2_620 Improved treatment of the stratosphere in C3S reanalyses
Dispatch Date: 2026-01-09
Publish Date: 2026-01-12
Submission Date: 2026-02-04
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