TAILIEUCHUNG - ECMWF Newsletter No. 128 – Summer 2011

The primary objective is to collaborate with or conduct research consistent with the division activities in support of the measurement science, standards, technology, data and chemical informatics required to support the nation’s needs in the determination of chemical composition and chemical structure of gases, organic, and inorganic species and in the measurement of a wide variety of chemical properties and processes, including chemical reactivity and mechanisms, and thermochemical properties. In partnership with . industry, government agencies, and academic scientific institutions, the division performs fundamental and applied research to advance and create state-of-the-art chemical measurement capabilities | ECMWF Newsletter No. 128 - Summer 2011 EDITORIAL CONTENTS New Director-General EDITORIAL New NEWS An appreciation of Dominique Outcome of Council s 75th Jean ECMWF Annual Report for Forecast Products Users Meeting June 2011 .5 IMO prize to first ECMWF Extension of the ERA-Interim reanalysis to Improved exploitation of radio occultation observations. . 8 Representing model uncertainty and error in weather and climate New model cycle METEOROLOGY Developments in precipitation Observation errors and their correlations for satellite Development of cloud condensate background errors . . 23 GENERAL ECMWF Calendar ECMWF Index of newsletter articles .28 Useful names and telephone numbers within PUBLICATION POLICY The ECMWFNewsletter is published quarterly. Its purpose is to make users of ECMWF products collaborators with ECMWF and the wider meteorological community aware of new developments at ECMWF and the use that can be made of ECMWF products. Most articles are prepared by staff at ECMWF but articles are also welcome from people working elsewhere especially those from Member States and Co-operating States. The ECMWFNewsletter is not peer-reviewed. Editor Bob Riddaway Typesetting and Graphics Rob Hine Any queries about the content or distribution of the ECMWF Newsletter should be sent to Guidance about submitting an article is available at publications newsletter CONTACTING ECMWF Shinfield Park Reading Berkshire RG2 9AX UK Fax . 44 118 986 9450 Telephone 949 9000 International. 44 118 949 9000 ECMWF website. http On 1 July 2011 I took over from Dominique Marbouty as Director-General of ECMWF. Not least because of the research collaboration I had with ECMWF scientists some years ago I am fully aware of its deserved reputation for being a

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