Content - Reanalysis Intercomparison

S-RIP - SPARC Reanalysis Intercomparison Project

Activity leads

Masatomo Fujiwara
Hokkaido University, Japan

Lesley Gray
University of Oxford, UK 

Gloria Manney
Northwest Research ASsociates, USA 

Chapter co-leads

Description of the Reanalysis Systems
Jonathon Wright, Tsinghua University, China
Masatomo Fujiwara, Hokkaido University, Japan
Craig Long, NOAA, USA

Climatology and Interannual Variability
Craig Long, NOAA, USA
Michaela Hegglin, University of Reading, UK
Sean Davis, NOAA, USA

Brewer–Dobson Circulation
Thomas Birner, Colorado State University, USA
Beatriz Monge-Sanz, ECMWF, UK

Stratosphere–Troposphere Coupling
Edwin Gerber, New York University, USA
Patrick Martineau, Cornell University, USA

Extratropical Upper Troposphere and Lower Stratosphere
Cameron Homeyer, University of Oklahoma, USA
Gloria Manney, NorthWest Research Associates, USA

Tropical Tropopause Layer
Susann Tegtmeier, GEOMAR, Germany
Kirstin Krüger, University of Oslo, Norway

Quasi-Biennial Oscillation and Tropical Variability
James Anstey, University of Oxford, UK
Lesley Gray, University of Oxford, UK

Polar Processes
Michelle Santee, NASA, USA
Alyn Lambert, NASA, USA
Gloria Manney, NorthWest Research Associates, USA

Upper Stratosphere and Lower Mesosphere
Lynn Harvey, University of Colorado, USA
John A. Knox, University of Georgia, USA

For other participants, see

Activity Description

The SPARC community has used reanalysis and analysis datasets to understand atmospheric processes, variability of the stratosphere and upper troposphere, and to validate chemistry-climate models. With the availability of several global reanalysis datasets, it is now time to start a coordinated activity to compare all (or some of the newer) reanalysis datasets for various "key" diagnostics, to understand the causes of the differences, to use the results to provide guidance on appropriate usage of various reanalysis products in scientific studies, and to connect such activities with future improvements of these products. The “key” diagnostics cover various aspects, including those of importance for middle atmosphere science and those with large impact on reanalysis improvements.

The SPARC Reanalysis Intercomparison Project (S-RIP) will include a co-operation between analysis centres and scientists from SPARC and other groups. Three to four dedicated workshops are planned for 2014-2017, with a final SPARC Report scheduled for 2018.

Published results

Journal publications:

Fujiwara, M. et al., 2016: Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems. Atmos. Chem. Phys. (under review).

SPARC activity updates:

SPARC Newsletter No. 47 (2016), p. 12: The 2015 SPARC Reanalysis Intercomparison Project (S-RIP) workshop and the 11th SPARC data assimilation workshop, by Q. Errera, M. Fujiwara, and B. Legras

SPARC newsletter No. 44 (2015), p. 31: Report on the 10th SPARC Data Assimilation Workshop and the 2014 SPARC Reanalysis Intercomparison Project (S-RIP) workshop in Washington DC, USA, by Q. Errera, M. Fujiwara, C. Long, and D. Jackson.

SPARC Newsletter No. 41 (2013), p. 52: SPARC Reanalysis Intercomparison Project (S-RIP) Planning Meeting, 29 April-1 May 2013, Exceter, UK, by M. Fujiwara, and D. Jackson

SPARC Newsletter No. 38 (2012), p. 14: A proposal of the SPARC Reanalysis/Analysis Intercomparison Project, by M. Fujiwara, S. Polavarapu, D. Jackson

Website for further information