Статья

The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2)

Ronald GelaroGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandWill McCartyGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandMax J. SuárezGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandRicardo TodlingGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandAndrea MolodGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandLawrence L. TakacsGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandCynthia A. RandlesGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandAnton DarmenovGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandMichael G. BosilovichGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandRolf H. ReichleGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandKrzysztof WarganGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandLawrence CoyGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandRichard CullatherEarth System Science Interdisciplinary Center, University of Maryland, College Park, College Park, MarylandClara DraperGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandSantha AkellaGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandVirginie BuchardGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandAustin ConatyGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandArlindo da SilvaGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandW GuGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandGi-Kong KimGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandRandal D. KosterGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandRobert A. LucchesiGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandD. MerkovaGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandJ. E. NielsenGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandGary PartykaGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandSteven PawsonGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandWilliam PutmanGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandMichele M. RieneckerGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandSiegfried D. SchubertGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandMeta SienkiewiczGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MarylandBin ZhaoGlobal Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, Maryland

2017en

ABI

Аннотация

The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) is the latest atmospheric reanalysis of the modern satellite era produced by NASA's Global Modeling and Assimilation Office (GMAO). MERRA-2 assimilates observation types not available to its predecessor, MERRA, and includes updates to the Goddard Earth Observing System (GEOS) model and analysis scheme so as to provide a viable ongoing climate analysis beyond MERRA's terminus. While addressing known limitations of MERRA, MERRA-2 is also intended to be a development milestone for a future integrated Earth system analysis (IESA) currently under development at GMAO. This paper provides an overview of the MERRA-2 system and various performance metrics. Among the advances in MERRA-2 relevant to IESA are the assimilation of aerosol observations, several improvements to the representation of the stratosphere including ozone, and improved representations of cryospheric processes. Other improvements in the quality of MERRA-2 compared with MERRA include the reduction of some spurious trends and jumps related to changes in the observing system, and reduced biases and imbalances in aspects of the water cycle. Remaining deficiencies are also identified. Production of MERRA-2 began in June 2014 in four processing streams, and converged to a single near-real time stream in mid 2015. MERRA-2 products are accessible online through the NASA Goddard Earth Sciences Data Information Services Center (GES DISC).

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Идентификаторы

DOI: 10.1175/jcli-d-16-0758.1

Цитирования и источники

Цитирований: 12Использованных источников: 0

Показатели — AkademScholar