Observations for Reanalyses

Brönnimann, Stefan; Allan, Rob; Atkinson, Christopher; Buizza, Roberto; Bulygina, Olga; Dahlgren, Per; Dee, Dick; Dunn, Robert; Gomes, Pedro; John, Viju O.; Jourdain, Sylvie; Haimberger, Leopold; Hersbach, Hans; Kennedy, John; Poli, Paul; Pulliainen, Jouni; Rayner, Nick; Saunders, Roger; Schulz, Jörg; Sterin, Alexander; ... (2018). Observations for Reanalyses. Bulletin of the American Meteorological Society, 99(9), pp. 1851-1866. American Meteorological Society 10.1175/BAMS-D-17-0229.1

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Global dynamical reanalyses of the atmosphere and ocean fundamentally rely on observations, not just for the assimilation (i.e. for the definition of the state of the Earth-system components), but also in many other steps along the production chain. Observations are used to constrain the model boundary conditions, for the calibration or uncertainty determination of other observations, and for the evaluation of data products. This requires major efforts, including data rescue (for historical observations), data management (including metadatabases), compilation and quality control, and error estimation. The work on observations ideally occurs one cycle ahead of the generation cycle of reanalyses, allowing them to make full use of it. In this paper we describe the activities within ERA-CLIM2, which range from surface, upper-air and Southern Ocean data rescue to satellite data recalibration and from the generation of snow cover products to the development of a global station data metadatabase. The project has not produced new data collections. Rather, the data generated has fed into global repositories and will serve future reanalysis projects. The continuation of this effort is first contingent upon the organization of data rescue, but also upon a series of targeted research activities to address newly-identified in-situ and satellite records.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geography > Physical Geography > Unit Climatology
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Institute of Geography
08 Faculty of Science > Institute of Geography > Physical Geography

UniBE Contributor:

Brönnimann, Stefan and Stickler, Alexander Nicolas

ISSN:

0003-0007

Publisher:

American Meteorological Society

Language:

English

Submitter:

Lukas Simon Meyer

Date Deposited:

01 May 2018 10:12

Last Modified:

06 Nov 2018 09:04

Publisher DOI:

10.1175/BAMS-D-17-0229.1

BORIS DOI:

10.7892/boris.112709

URI:

https://boris.unibe.ch/id/eprint/112709

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