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Improved reanalyses of past weather can be obtained by retrospectively assimilating reprocessed observational datasets ranging from surface stations and satellites with a up-to-date Numerical Weather Prediction (NWP) model. The resulting time series of the atmospheric state is both dynamically consistent and close to observations. The interest in extracting climate information from reanalysis is rising and creating a request for reanalysis uncertainty estimation at various temporal-spatial scales.
These research questions are adressed in the ERA-CLIM, EURO4M and UERRA projects which are supporting the development of the Copernicus Climate Change Services.

This session invites papers that:
• Explore and demonstrate the capability of global and regional reanalysis data for climate applications
• Compare different reanalysis (global, regional) with each other and/or observations
• Improve recovery, quality control and uncertainty estimation of related observations
• Analyse the uncertainty budget of the reanalyses and relate to user applications

Convener: Frank Kaspar | Co-Conveners: Eric Bazile, Dick Dee
| Mon, 09 Sep, 14:00–16:00|Room S1
| Attendance Mon, 09 Sep, 19:15–20:30 | Display Mon, 09 Sep, 09:30–Wed, 11 Sep, 12:30|Sports Hall

Monday, 9 September 2019 | Room S1

Chairperson: Frank Kaspar
Development and production of reanalysis datasets
14:00–14:15 |
Semjon Schimanke, Per Undén, Ludvik Isaksson, Lisette Edvinsson, Martin Ridal, Esbjörn Olsson, Susanna Hopsch, and Sandra Andersson
14:15–14:30 |
Harald Schyberg, Heiner Körnich, Roger Randriamampianina, Eivind Støylen, and Xiaohua Yang
14:30–14:45 |
Mariusz Pagowski, Arlindo da Silva, Sarah Lu, and Shih-Wei Wei
14:45–15:00 |
Clarissa Figura, Andreas Hense, Jan Dominik Keller, Clemens Simmer, Insa Thiele-Eich, Sabrina Wahl, and Martin Wittenbrink
Evaluation of reanalysis datasets
15:15–15:30 |
Jan Keller and Andreas Hense
15:30–15:45 |
Riccardo Hénin, Margarida L.R. Liberato, Alexandre M. Ramos, and Célia M. Gouveia
15:45–16:00 |
Van Hyfte Stéphane, Le Moigne Patrick, Bazile Eric, and Verrelle Antoine
Poster pitches (16:00-16:10)

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