TY - RPRT
AU - D.P. Dee
AU - S. Uppala
AU - Adrian Simmons
AU - P. Berrisford
AU - P. Poli
AU - S. Kobayashi
AU - U. Andrae
AU - Magdalena Alonso-Balmaseda
AU - Gianpaolo Balsamo
AU - Peter Bauer
AU - Peter Bechtold
AU - Anton Beljaars
AU - L. van de Berg
AU - Jean-Raymond Bidlot
AU - Niels Bormann
AU - C. Delsol
AU - Rossana Dragani
AU - Manuel Fuentes
AU - Alan Geer
AU - L. Haimberger
AU - Sean Healy
AU - Hans Hersbach
AU - E. Hólm
AU - L. Isaksen
AU - P.W. Kållberg
AU - M. Köhler
AU - Marco Matricardi
AU - A. McNally
AU - B.M. Monge-Sanz
AU - J.-J. Morcrette
AU - C. Peubey
AU - Patricia de Rosnay
AU - C. Tavolato
AU - Jean-Noël Thépaut
AU - Frédéric Vitart
AB - ERA-Interim is the latest global atmospheric reanalysis produced by the European Centre for Medium-Range Weather Forecasts (ECMWF), covering dates from 1 January 1989. The ERA-Interim project was conducted in part to prepare for a new atmospheric reanalysis to replace ERA-40, which will extend back to the early part of the 20th century. This article describes the forecast model, data assimilation method, and input data sets used to produce ERA-Interim, and discusses the performance of the system. Special emphasis is placed on various difficulties encountered in the production of ERA- 40, including the representation of the hydrological cycle, the quality of the stratospheric circulation, and the consistency in time of the reanalysed fields. We provide evidence for substantial improvements in each of these aspects. We also identify areas where further work is needed and describe opportunities and objectives for future reanalysis projects at ECMWF.
BT - ERA Report Series
C1 - Research
CY - Shinfield Park, Reading
DA - 2011
LA - eng
M1 - 9
N2 - ERA-Interim is the latest global atmospheric reanalysis produced by the European Centre for Medium-Range Weather Forecasts (ECMWF), covering dates from 1 January 1989. The ERA-Interim project was conducted in part to prepare for a new atmospheric reanalysis to replace ERA-40, which will extend back to the early part of the 20th century. This article describes the forecast model, data assimilation method, and input data sets used to produce ERA-Interim, and discusses the performance of the system. Special emphasis is placed on various difficulties encountered in the production of ERA- 40, including the representation of the hydrological cycle, the quality of the stratospheric circulation, and the consistency in time of the reanalysed fields. We provide evidence for substantial improvements in each of these aspects. We also identify areas where further work is needed and describe opportunities and objectives for future reanalysis projects at ECMWF.
PB - ECMWF
PP - Shinfield Park, Reading
PY - 2011
EP - 71
T2 - ERA Report Series
T3 - ERA Report
TI - The ERA-Interim reanalysis: Configuration and performance of the data assimilation system – This report is superseded by the version published in Q J Roy Meteor Soc.
ER -